diff --git a/.eslintrc.json b/.eslintrc.json
new file mode 100644
index 0000000..0eca927
--- /dev/null
+++ b/.eslintrc.json
@@ -0,0 +1,9 @@
+{
+    "parserOptions": {
+        "ecmaVersion": 6,
+        "sourceType": "module"
+    },
+    "extends": "google",
+    "rules": {
+    }
+}
diff --git a/.gitignore b/.gitignore
index 5cbb075..0123e42 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,6 +3,7 @@ cameras.sql
 .project
 .settings
 *.swp
+*.sublime-workspace
 node_modules
 prep.config
 settings-nvr-local.js
diff --git a/.jsbeautifyrc b/.jsbeautifyrc
new file mode 100644
index 0000000..74d87d6
--- /dev/null
+++ b/.jsbeautifyrc
@@ -0,0 +1,43 @@
+{
+    "indent_size": 2,
+    "indent_char": " ",
+    "indent_with_tabs": false,
+    "eol": "\n",
+    "end_with_newline": true,
+    "indent_level": 0,
+    "preserve_newlines": true,
+    "max_preserve_newlines": 4,
+    "space_in_paren": false,
+    "space_in_empty_paren": false,
+    "jslint_happy": false,
+    "space_after_anon_function": false,
+    "brace_style": "collapse,preserve-inline",
+    "unindent_chained_methods": false,
+    "break_chained_methods": false,
+    "keep_array_indentation": false,
+    "unescape_strings": false,
+    "wrap_line_length": 0,
+    "e4x": false,
+    "comma_first": false,
+    "operator_position": "before-newline",
+    "js": {
+        "indent_size": 2,
+        "indent_char": " ",
+        "indent_with_tabs": false
+    },
+    "json": {
+       "brace_style": "expand",
+        "keep_array_indentation": false,
+        "unescape_strings": false
+    },
+    "custom": {
+        "package?(-lock).json": {
+            "indent_size": 2,
+            "brace_style": "collapse"
+        },
+        "*.sublime-@(settings|keymap|commands|menu)": {
+            "indent_size": 4,
+            "brace_style": "expand"
+        }
+    }
+}
diff --git a/.prettierrc.json b/.prettierrc.json
new file mode 100644
index 0000000..642e70a
--- /dev/null
+++ b/.prettierrc.json
@@ -0,0 +1,37 @@
+{
+    "printWidth": 80,
+    "singleQuote": false,
+    "trailingComma": "none",
+    "bracketSpacing": true,
+    "jsxBracketSameLine": false,
+    "parser": "babylon",
+    "semi": true,
+    "requirePragma": false,
+    "proseWrap": "preserve",
+    "arrowParens": "avoid",
+    "tabWidth": 4,
+    "overrides": [
+        {
+            "files": ["*.js"],
+            "options": {
+                "tabWidth": 2,
+                "useTabs": false,
+                "singleQuote": true,
+                "trailingComma": "es5",
+                "bracketSpacing": true,
+                "semi": true,
+                "arrowParens": "always"
+            }
+        },
+        {
+            "files": ["*.json", "moonfire.sublime-project"],
+            "options": {
+                "parser": "json",
+                "tabWidth": 4,
+                "useTabs": false,
+                "singleQuote": false,
+                "trailingComma": "none"
+            }
+        }
+    ]
+}
diff --git a/moonfire.sublime-project b/moonfire.sublime-project
new file mode 100644
index 0000000..17839ee
--- /dev/null
+++ b/moonfire.sublime-project
@@ -0,0 +1,42 @@
+{
+  "folders": [
+    {
+      "path": ".",
+      "folder_exclude_patterns": [
+        "design",
+        "ffmpeg",
+        "node_modules",
+        "ui-dist"
+      ],
+      "file_exclude_patterns": ["*.png", "*.jpg", "*.gif"]
+    }
+  ],
+  "settings": {
+    "js_prettier": {
+      "additional_cli_args": {
+        "--config-precedence": "prefer-file"
+      },
+      "debug": true,
+      "prettier_cli_path": "",
+      "node_path": "",
+      "auto_format_on_save": false,
+      "auto_format_on_save_excludes": [],
+      "auto_format_on_save_requires_prettier_config": false,
+      "allow_inline_formatting": false,
+      "custom_file_extensions": [],
+      "max_file_size_limit": -1,
+      "prettier_options": {
+        "printWidth": 80,
+        "singleQuote": false,
+        "trailingComma": "none",
+        "bracketSpacing": true,
+        "jsxBracketSameLine": false,
+        "parser": "babylon",
+        "semi": true,
+        "requirePragma": false,
+        "proseWrap": "preserve",
+        "arrowParens": "avoid"
+      }
+    }
+  }
+}
diff --git a/package.json b/package.json
index 1552e2b..5882b6a 100644
--- a/package.json
+++ b/package.json
@@ -23,10 +23,16 @@
     "babel-minify-webpack-plugin": "^0.3.0",
     "babel-preset-env": "^1.6.1",
     "clean-webpack-plugin": "^0.1.18",
+    "compression-webpack-plugin": "^1.1.10",
     "css-loader": "^0.28.10",
+    "eslint": "^4.18.2",
+    "eslint-config-google": "^0.9.1",
     "file-loader": "^1.1.11",
+    "html-loader": "^0.5.5",
     "html-webpack-plugin": "^3.0.6",
+    "prettier": "1.11.1",
     "style-loader": "^0.19.0",
+    "uglifyjs-webpack-plugin": "^1.2.3",
     "webpack": "^4.0.1",
     "webpack-cli": "^2.0.10",
     "webpack-dev-server": "^3.1.0",
diff --git a/settings-nvr.js b/settings-nvr.js
index 84f8323..266e64b 100644
--- a/settings-nvr.js
+++ b/settings-nvr.js
@@ -1,5 +1,34 @@
-// vim: set et ts=2 sw=2:
+// vim: set et sw=2 ts=2:
 //
+// This file is part of Moonfire NVR, a security camera digital video recorder.
+// Copyright (C) 2018 Dolf Starreveld <dolf@starreveld.com>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// In addition, as a special exception, the copyright holders give
+// permission to link the code of portions of this program with the
+// OpenSSL library under certain conditions as described in each
+// individual source file, and distribute linked combinations including
+// the two.
+//
+// You must obey the GNU General Public License in all respects for all
+// of the code used other than OpenSSL. If you modify file(s) with this
+// exception, you may extend this exception to your version of the
+// file(s), but you are not obligated to do so. If you do not wish to do
+// so, delete this exception statement from your version. If you delete
+// this exception statement from all source files in the program, then
+// also delete it here.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 /**
  * This module must export a map, but can use a function with no arguments
diff --git a/ui-src/NVRApplication.js b/ui-src/NVRApplication.js
new file mode 100644
index 0000000..38e90f4
--- /dev/null
+++ b/ui-src/NVRApplication.js
@@ -0,0 +1,306 @@
+// vim: set et sw=2 ts=2:
+//
+// This file is part of Moonfire NVR, a security camera digital video recorder.
+// Copyright (C) 2018 Dolf Starreveld <dolf@starreveld.com>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// In addition, as a special exception, the copyright holders give
+// permission to link the code of portions of this program with the
+// OpenSSL library under certain conditions as described in each
+// individual source file, and distribute linked combinations including
+// the two.
+//
+// You must obey the GNU General Public License in all respects for all
+// of the code used other than OpenSSL. If you modify file(s) with this
+// exception, you may extend this exception to your version of the
+// file(s), but you are not obligated to do so. If you do not wish to do
+// so, delete this exception statement from your version. If you delete
+// this exception statement from all source files in the program, then
+// also delete it here.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+// TODO: test abort.
+// TODO: add error bar on fetch failure.
+// TODO: live updating.
+
+import 'jquery-ui/themes/base/button.css';
+import 'jquery-ui/themes/base/core.css';
+import 'jquery-ui/themes/base/datepicker.css';
+import 'jquery-ui/themes/base/dialog.css';
+import 'jquery-ui/themes/base/resizable.css';
+import 'jquery-ui/themes/base/theme.css';
+import 'jquery-ui/themes/base/tooltip.css';
+
+// This causes our custom css to be loaded after the above!
+require('./assets/index.css');
+
+import $ from 'jquery';
+import 'jquery-ui/ui/widgets/datepicker';
+import 'jquery-ui/ui/widgets/dialog';
+import 'jquery-ui/ui/widgets/tooltip';
+
+import Camera from './lib/models/Camera';
+import CameraView from './lib/views/CameraView';
+import CalendarView from './lib/views/CalendarView';
+import NVRSettingsView from './lib/views/NVRSettingsView';
+import CheckboxGroupView from './lib/views/CheckboxGroupView';
+import RecordingFormatter from './lib/support/RecordingFormatter';
+import TimeFormatter, {
+  TimeStamp90kFormatter,
+} from './lib/support/TimeFormatter';
+import MoonfireAPI from './lib/MoonfireAPI';
+
+const api = new MoonfireAPI();
+let cameraViews = null; // CameraView objects
+let calendarView = null; // CalendarView object
+
+/**
+ * Currently selected time format specification.
+ *
+ * @type {String}
+ */
+let timeFmt = 'YYYY-MM-DD HH:mm:ss';
+
+/**
+ * Currently active time formatter.
+ * This is lazy initialized at the point we receive the timezone information
+ * and never changes afterwards, except possibly for changing the timezone.
+ *
+ * @type {[type]}
+ */
+let timeFormatter = null;
+
+/**
+ * Currently active time formatter for internal time format.
+ * This is lazy initialized at the point we receive the timezone information
+ * and never changes afterwards, except possibly for changing the timezone.
+ *
+ * @type {[type]}
+ */
+let timeFormatter90k = null;
+
+/**
+ * Globally set a new timezone for the app.
+ *
+ * @param  {String} timeZone Timezone name
+ */
+function newTimeZone(timeZone) {
+  timeFormatter = new TimeFormatter(timeFmt, timeZone);
+  timeFormatter90k = new TimeStamp90kFormatter(timeZone);
+}
+
+/**
+ * Globally set a new time format for the app.
+ *
+ * @param  {String} format Time format specification
+ */
+function newTimeFormat(format) {
+  timeFormatter = new TimeFormatter(format, timeFormatter.tz);
+}
+
+/**
+ * Event handler for clicking on a video.
+ *
+ * A 'dialog' object is attached to the body of the dom and it
+ * properly initialized with the corrcet src url.
+ *
+ * @param  {NVRSettings} nvrSettingsView NVRSettingsView in effect
+ * @param  {object} camera Object for the camera
+ * @param  {object} range Range Object
+ * @param  {object} recording Recording object
+ * @return {void}
+ */
+function onSelectVideo(nvrSettingsView, camera, range, recording) {
+  console.log('Recording clicked: ', recording);
+  const trimmedRange = recording.range90k(nvrSettingsView.trim ? range : null);
+  const url = api.videoPlayUrl(
+    camera.uuid,
+    recording,
+    trimmedRange,
+    nvrSettingsView.timeStampTrack
+  );
+  const video = $('<video controls preload="auto" autoplay="true" />');
+  const dialog = $('<div class="playdialog" />').append(video);
+  $('body').append(dialog);
+
+  let [formattedStart, formattedEnd] = timeFormatter90k.formatSameDayShortened(
+    trimmedRange.startTime90k,
+    trimmedRange.endTime90k
+  );
+  dialog.dialog({
+    title: camera.shortName + ', ' + formattedStart + ' to ' + formattedEnd,
+    width: recording.videoSampleEntryWidth / 4,
+    close: () => {
+        const videoDOMElement = video[0];
+        videoDOMElement.pause();
+        videoDOMElement.src = ''; // Remove current source to stop loading
+        dialog.remove();
+    },
+  });
+  // Now that dialog is up, set the src so video starts
+  console.log('Video url: ' + url);
+  video.attr('src', url);
+}
+
+/**
+ * Fetch camera view data for a given date/time range.
+ *
+ * @param  {Range90k} selectedRange Desired time range
+ * @param  {Number} videoLength Desired length of video segments, or Infinity
+ */
+function fetch(selectedRange, videoLength) {
+  if (selectedRange.startTime90k === null) {
+    return;
+  }
+  console.log(
+    'Fetching> ' +
+      selectedRange.formatTimeStamp90k(selectedRange.startTime90k) +
+      ' to ' +
+      selectedRange.formatTimeStamp90k(selectedRange.endTime90k)
+  );
+  for (let cameraView of cameraViews) {
+    let url = api.recordingsUrl(
+      cameraView.camera.uuid,
+      selectedRange.startTime90k,
+      selectedRange.endTime90k,
+      videoLength
+    );
+    if (cameraView.recordingsReq !== null) {
+      /*
+       * If there is another request, it would be because settings changed
+       * and so an abort is to make room for this new request, now necessary
+       * for the changed situation.
+       */
+      cameraView.recordingsReq.abort();
+    }
+    cameraView.delayedShowLoading(500);
+    let r = api.request(url);
+    cameraView.recordingsUrl = url;
+    cameraView.recordingsReq = r;
+    cameraView.recordingsRange = selectedRange.range90k();
+    r.always(function() {
+      cameraView.recordingsReq = null;
+    });
+    r
+      .then(function(data, status, req) {
+        // Sort recordings in descending order.
+        data.recordings.sort(function(a, b) {
+          return b.startId - a.startId;
+        });
+        console.log('Fetched results > updating recordings');
+        cameraView.recordingsJSON = data.recordings;
+      })
+      .catch(function(data, status, err) {
+        console.log(url, ' load failed: ', status, ': ', err);
+      });
+  }
+}
+
+/**
+ * Initialize the page after receiving camera data.
+ *
+ * Sets the following globals:
+ * zone - timezone from data received
+ * cameraViews - array of views, one per camera
+ *
+ * Builds the dom for the left side controllers
+ *
+ * @param  {Object} data JSON resulting from the main API request /api/?days=
+ */
+function onReceivedCameras(data) {
+  newTimeZone(data.timeZoneName);
+
+  // Set up controls and values
+  const nvrSettingsView = new NVRSettingsView();
+  nvrSettingsView.onVideoLengthChange = (vl) =>
+    fetch(calendarView.selectedRange, vl);
+  nvrSettingsView.onTimeFormatChange = (format) =>
+    cameraViews.forEach((view) => (view.timeFormat = format));
+  nvrSettingsView.onTrimChange = (t) =>
+    cameraViews.forEach((view) => (view.trimmed = t));
+  newTimeFormat(nvrSettingsView.timeFormatString);
+
+  calendarView = new CalendarView({timeZone: timeFormatter.tz});
+  calendarView.onRangeChange = (selectedRange) =>
+    fetch(selectedRange, nvrSettingsView.videoLength);
+
+  const camerasParent = $('#cameras');
+  const videos = $('#videos');
+
+  cameraViews = data.cameras.map((cameraJson) => {
+    const camera = new Camera(cameraJson);
+    const cv = new CameraView(
+      camera,
+      new RecordingFormatter(timeFormatter.formatStr, timeFormatter.tz),
+      nvrSettingsView.trim,
+      videos
+    );
+    cv.onRecordingClicked = (recordingModel) => {
+      console.log('Recording clicked', recordingModel);
+      onSelectVideo(
+        nvrSettingsView,
+        camera,
+        calendarView.selectedRange,
+        recordingModel
+      );
+    };
+    return cv;
+  });
+
+  // Create camera enable checkboxes
+  const cameraCheckBoxes = new CheckboxGroupView(
+    cameraViews.map((cv) => ({
+      id: cv.camera.uuid,
+      checked: true,
+      text: cv.camera.shortName,
+      camView: cv,
+    })),
+    camerasParent
+  );
+  cameraCheckBoxes.onCheckChange = (groupEl) => {
+    groupEl.camView.enabled = groupEl.checked;
+    calendarView.initializeWith(cameraViews);
+  };
+
+  calendarView.initializeWith(cameraViews);
+
+  console.log('Loaded: ' + cameraViews.length + ' camera views');
+}
+
+/**
+ * Class representing the entire application.
+ */
+export default class NVRApplication {
+  /**
+   * Construct the application object.
+   */
+  constructor() {}
+
+  /**
+   * Start the application.
+   */
+  start() {
+    api
+      .request(api.nvrUrl(true))
+      .done((data) => onReceivedCameras(data))
+      .fail((req, status, err) => {
+        console.log('NVR load error: ', status, err);
+        onReceivedCameras({cameras: []});
+      })
+      .catch((e) => {
+        console.log('NVR load exception: ', e);
+        onReceivedCameras({cameras: []});
+      });
+  }
+}
diff --git a/ui-src/assets/index.css b/ui-src/assets/index.css
new file mode 100644
index 0000000..9bf8f61
--- /dev/null
+++ b/ui-src/assets/index.css
@@ -0,0 +1,76 @@
+body {
+    font-family: Arial, Helvetica, sans-serif;
+}
+#nav {
+    float: left;
+}
+.ui-datepicker {
+    width: 100%;
+}
+
+#videos {
+    display: inline-block;
+    padding-top: 0.5em;
+    padding-left: 1em;
+    padding-right: 1em;
+}
+#videos tbody:after {
+    content: "";
+    display: block;
+    height: 3ex;
+}
+table.videos {
+    border-collapse: collapse;
+}
+tbody tr.name {
+    font-size: 110%;
+    background-color: #eee;
+}
+tbody tr.name th {
+  border-bottom: 1px solid #666;
+}
+tbody tr.hdr {
+  color: #555;
+    font-size: 90%;
+}
+tr.r:hover {
+    background-color: #ddd;
+}
+tr.r td {
+    font-size: 80%;
+    cursor: pointer;
+}
+tr.r th,
+tr.r td {
+  border: 0;
+    padding: 0.5ex 1.5em;
+    text-align: right;
+}
+
+fieldset {
+  font-size: 80%;
+}
+fieldset legend {
+  font-size: 120%;
+  font-weight: bold;
+}
+
+#from, #to {
+    padding-right: 0.75em;
+}
+#st {
+    width: 100%;
+}
+
+#range {
+    padding: 0.5em 0;
+}
+.ui-dialog .ui-dialog-content {
+    overflow: visible; /* remove stupid scroll bars when resizing. */
+    padding: 0;
+}
+
+video {
+    width: 100%;
+    height: 100%;
+}
diff --git a/ui-src/assets/index.html b/ui-src/assets/index.html
new file mode 100644
index 0000000..f5a2ab8
--- /dev/null
+++ b/ui-src/assets/index.html
@@ -0,0 +1,76 @@
+<!DOCTYPE html>
+<!-- vim: set et: -->
+<html lang="en">
+  <head>
+    <title>Moonfire NVR</title>
+  </head>
+  <body>
+    <div id="nav">
+      <form action="#">
+        <fieldset id="cameras">
+          <legend>Cameras</legend>
+        </fieldset>
+        <fieldset id="datetime">
+          <legend>Date &amp; Time Range</legend>
+          <div id="from">
+             <div id="start-date"></div>
+             <div id="st">
+           <label for="start-time">Time:</label>
+            <input id="start-time" name="start-time" type="text" title="Starting
+            time within the day. Blank for the beginning of the day. Otherwise
+            HH:mm[:ss[:FFFFF]][+-HH:mm], where F is 90,000ths of a second.
+            Timezone is normally left out; it's useful once a year during the
+            ambiguous times of the &quot;fall back&quot; hour."></div>
+          </div>
+          <div id="range">Range:
+            <input type="radio" name="end-date-type" id="end-date-same" checked>
+            <label for="end-date-same">Single Day</label>
+            <input type="radio" name="end-date-type" id="end-date-other">
+            <label for="end-date-other">Multi Day</label><br/>
+          </div>
+          <div id="to">
+            <div id="end-date"></div>
+           <label for="start-time">Time:</label>
+            <input id="end-time" name="end-time" type="text" title="Ending
+            time within the day. Blank for the end of the day. Otherwise
+            HH:mm[:ss[:FFFFF]][+-HH:mm], where F is 90,000ths of a second.
+            Timezone is normally left out; it's useful once a year during the
+            ambiguous times of the &quot;fall back&quot; hour.">
+          </div>
+        </fieldset>
+        <fieldset>
+        <legend>Recordings Display</legend>
+        <label for="split">Max Video Duration:</label>
+        <select name="split" id="split">
+          <option value="324000000">1 hour</option>
+          <option value="1296000000">4 hours</option>
+          <option value="7776000000">24 hours</option>
+          <option value="infinite">infinite</option>
+        </select><br>
+        <input type="checkbox" checked id="trim" name="trim">
+        <label for="trim">Trim Segment Start &amp; End</label><br>
+        <input type="checkbox" checked id="ts" name="ts">
+        <label for="ts">Timestamp Track</label><br>
+        <label for="timefmt">Time Format:</label>
+        <select name="timefmt" id="timefmt">
+          <option value="MM/DD/YY hh:mm A">US-short</option>
+          <option value="MM/DD/YYYY hh:mm:ss A">US</option>
+          <option value="MM/DD/YY HH:mm" selected>Military-short</option>
+          <option value="MM/DD/YYYY HH:mm:ss">Military</option>
+          <option value="DD.MM.YY HH:mm">EU-short</option>
+          <option value="DD-MM-YYYY HH:mm:ss">EU</option>
+          <option value="YY-MM-DD hh:mm A">ISO-short (12h)</option>
+          <option value="YY-MM-DD HH:mm">ISO-short (24h)</option>
+          <option value="YYYY-MM-DD hh:mm:ss A">ISO (12h)</option>
+          <option value="YYYY-MM-DD HH:mm:ss">ISO (24h)</option>
+          <option value="YYYY-MM-DD HH:mm:ss">ISO 8601-like (No TZ)</option>
+          <option value="YYYY-MM-DDTHH:mm:ss">ISO 8601 (No TZ)</option>
+          <option value="YYYY-MM-DDTHH:mm:ssZ">ISO 8601</option>
+          <option value="YYYY-MM-DDTHH:mm:ss:FFFFFZ">Internal</option>
+        </select>
+      </fieldset>
+      </form>
+    </div>
+  <table id="videos"></table>
+</body>
+</html>
\ No newline at end of file
diff --git a/ui-src/index.html b/ui-src/index.html
deleted file mode 100644
index 96a3e4f..0000000
--- a/ui-src/index.html
+++ /dev/null
@@ -1,79 +0,0 @@
-<!DOCTYPE html>
-<!-- vim: set et: -->
-<html lang="en">
-  <head>
-    <meta http-equiv="Content-type" content="text/html; charset=utf-8"/>
-    <title><%= htmlWebpackPlugin.options.title %></title>
-    <style type="text/css">
-      #nav {
-        float: left;
-        width: 17em;
-      }
-      #nav .ui-datepicker { width: 100%; }
-
-      #videos {
-        margin-left: 18em;
-      }
-      #videos tbody:after {
-        content: '';
-        display: block;
-        height: 3ex;
-      }
-      tbody .name {
-        background-color: #eee;
-      }
-      tr.r:hover { background-color: #ddd; }
-      tr.r th, tr.r td { padding: 0.5ex 1.5em; text-align: right; }
-
-      .ui-dialog .ui-dialog-content {
-        overflow: visible; /* remove stupid scroll bars when resizing. */
-        padding: 0;
-      }
-      video {
-        width: 100%;
-        height: 100%;
-      }
-    </style>
-  </head>
-  <body>
-    <div id="nav">
-      <form action="#">
-        <fieldset id="cameras">
-          <legend>Cameras</legend>
-        </fieldset>
-        <fieldset id="datetime">
-          <legend>Datetime range</legend>
-          <div id="start-date"></div>
-          <input id="start-time" name="start-time" type="text" title="Starting
-          time within the day. Blank for the beginning of the day. Otherwise
-          HH:mm[:ss[:FFFFF]][+-HH:mm], where F is 90,000ths of a second.
-          Timezone is normally left out; it's useful once a year during the
-          ambiguous times of the &quot;fall back&quot; hour."><br>
-          <input type="radio" name="end-date-type" id="end-date-same" checked>
-          <label for="end-date-same">to same day</label><br>
-          <input type="radio" name="end-date-type" id="end-date-other">
-          <label for="end-date-other">to other day</label>
-          <div id="end-date"></div>
-          <input id="end-time" name="end-time" type="text" title="Ending
-          time within the day. Blank for the end of the day. Otherwise
-          HH:mm[:ss[:FFFFF]][+-HH:mm], where F is 90,000ths of a second.
-          Timezone is normally left out; it's useful once a year during the
-          ambiguous times of the &quot;fall back&quot; hour."><br>
-        </fieldset>
-        <label for="split">Max video length</label>
-        <select name="split" id="split">
-          <option value="324000000">1 hour</option>
-          <option value="1296000000">4 hours</option>
-          <option value="7776000000">24 hours</option>
-          <option value="">infinite</option>
-        </select><br>
-        <input type="checkbox" checked id="trim" name="trim">
-        <label for="trim">Trim segment start/end</label><br>
-        <input type="checkbox" checked id="ts" name="ts">
-        <label for="ts">Timestamp track</label>
-      </form>
-    </div>
-    <table id="videos"></table>
-  </body>
-</html>
-
diff --git a/ui-src/index.js b/ui-src/index.js
index 6369be4..c083dc7 100644
--- a/ui-src/index.js
+++ b/ui-src/index.js
@@ -1,418 +1,41 @@
-// vim: set et sw=2:
+// vim: set et sw=2 ts=2:
+//
+// This file is part of Moonfire NVR, a security camera digital video recorder.
+// Copyright (C) 2018 Dolf Starreveld <dolf@starreveld.com>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// In addition, as a special exception, the copyright holders give
+// permission to link the code of portions of this program with the
+// OpenSSL library under certain conditions as described in each
+// individual source file, and distribute linked combinations including
+// the two.
+//
+// You must obey the GNU General Public License in all respects for all
+// of the code used other than OpenSSL. If you modify file(s) with this
+// exception, you may extend this exception to your version of the
+// file(s), but you are not obligated to do so. If you do not wish to do
+// so, delete this exception statement from your version. If you delete
+// this exception statement from all source files in the program, then
+// also delete it here.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-// TODO: test abort.
-// TODO: add error bar on fetch failure.
-// TODO: style: no globals? string literals? line length? fn comments?
-// TODO: live updating.
-
-import './favicon.ico';
-
-import 'jquery-ui/themes/base/button.css';
-import 'jquery-ui/themes/base/core.css';
-import 'jquery-ui/themes/base/datepicker.css';
-import 'jquery-ui/themes/base/dialog.css';
-import 'jquery-ui/themes/base/resizable.css';
-import 'jquery-ui/themes/base/theme.css';
-import 'jquery-ui/themes/base/tooltip.css';
+import NVRApplication from './NVRApplication';
 
 import $ from 'jquery';
-import 'jquery-ui/ui/widgets/datepicker';
-import 'jquery-ui/ui/widgets/dialog';
-import 'jquery-ui/ui/widgets/tooltip';
-import moment from 'moment-timezone';
-
-const apiUrl = '/api/';
-
-// IANA timezone name.
-let zone = null;
-
-// A dict describing the currently selected range.
-let selectedRange = {
-    startDateStr: null,  // null or YYYY-MM-DD
-    startTimeStr: '',    // empty or HH:mm[:ss[:FFFFF]][+-HHmm]
-    startTime90k: null,  // null or 90k units since epoch
-    endDateStr: null,    // null or YYYY-MM-DD
-    endTimeStr: '',      // empty or HH:mm[:ss[:FFFFF]][+-HHmm]
-    endTime90k: null,    // null or 90k units since epoch
-    singleDateStr: null, // if startDateStr===endDateStr, that value, otherwise null
-};
-
-// Cameras is a dictionary as retrieved from apiUrl + some extra props:
-// * "enabled" is a boolean indicating if the camera should be displayed and
-//   if it should be used to constrain the datepickers.
-// * "recordingsUrl" is null or the currently fetched/fetching .../recordings url.
-// * "recordingsRange" is a null or a dict (in the same format as
-//   selectedRange) describing what is fetching/fetched.
-// * "recordingsData" is null or the data fetched from "recordingsUrl".
-// * "recordingsReq" is null or a jQuery ajax object of an active .../recordings
-//   request if currently fetching.
-let cameras = null;
-
-function req(url) {
-  return $.ajax(url, {
-    dataType: 'json',
-    headers: {'Accept': 'application/json'},
-  });
-}
-
-/**
- * Format timestamp using a format string.
- *
- * The timestamp to be formatted is expected to be in units of 90,000 to a
- * second (90k format).
- * 
- * The format string should comply with what is accepted by moment.format,
- * with one addition. A format pattern of FFFFF (5 Fs) can be used. This
- * format pattern will be replaced with the fractional second part of the
- * timestamp, still in 90k units. Thus if the timestamp was 89900 (which is
- * almost a full second; 0.99888 seconds decimal), the output would be
- * 89900, and NOT 0.99888. Only a pattern of five Fs is recognized and it
- * will produce exactly a five position output! You cannot vary the number
- * of Fs to produce less.
- *
- * The default format string was chosen to produce results identical to
- * a previous version of this code that was hard-coded to produce that output.
- * 
- * @param  {Number} ts90k  Timestamp in 90k units
- * @param  {String} format moment.format plus FFFFF pattern supported
- * @return {String}        Formatted timestamp
- */
-function formatTime(ts90k, format = 'YYYY-MM-DDTHH:mm:ss:FFFFFZ') {
-  const ms = ts90k / 90.0;
-  const fracFmt = 'FFFFF';
-  let fracLoc = format.indexOf(fracFmt);
-  if (fracLoc != -1) {
-    const frac = ts90k % 90000;
-    format = format.substr(0, fracLoc) + String(100000 + frac).substr(1) +
-             format.substr(fracLoc + fracFmt.length);
-  }
-  return moment.tz(ms, zone).format(format);
-}
-
-function onSelectVideo(camera, range, recording) {
-  let url = apiUrl + 'cameras/' + camera.uuid + '/view.mp4?s=' + recording.startId;
-  if (recording.endId !== undefined) {
-    url += '-' + recording.endId;
-  }
-  const trim = $("#trim").prop("checked");
-  let rel = '';
-  let startTime90k = recording.startTime90k;
-  if (trim && recording.startTime90k < range.startTime90k) {
-    rel += range.startTime90k - recording.startTime90k;
-    startTime90k = range.startTime90k;
-  }
-  rel += '-';
-  let endTime90k = recording.endTime90k;
-  if (trim && recording.endTime90k > range.endTime90k) {
-    rel += range.endTime90k - recording.startTime90k;
-    endTime90k = range.endTime90k;
-  }
-  if (rel !== '-') {
-    url += '.' + rel;
-  }
-  if ($("#ts").prop("checked")) {
-    url += '&ts=true';
-  }
-  console.log('Displaying video: ', url);
-  let video = $('<video controls preload="auto" autoplay="true"/>');
-  let dialog = $('<div class="playdialog"/>').append(video);
-  $("body").append(dialog);
-
-  // Format start and end times for the dialog title. If they're the same day,
-  // abbreviate the end time.
-  let formattedStart = formatTime(startTime90k);
-  let formattedEnd = formatTime(endTime90k);
-  let timePos = 'YYYY-mm-ddT'.length;
-  if (formattedEnd.startsWith(formattedStart.substr(0, timePos))) {
-    formattedEnd = formattedEnd.substr(timePos);
-  }
-  dialog.dialog({
-      title: camera.shortName + ", " + formattedStart + " to " + formattedEnd,
-      width: recording.videoSampleEntryWidth / 4,
-      close: () => {
-        const videoDOMElement = video[0];
-        videoDOMElement.pause();
-        videoDOMElement.src = ''; // Remove current source to stop loading
-        dialog.remove();
-      },
-  });
-  video.attr("src", url);
-}
-
-function formatRecordings(camera) {
-  let tbody = $("#tab-" + camera.uuid);
-  $(".loading", tbody).hide();
-  $(".r", tbody).remove();
-  const frameRateFmt = new Intl.NumberFormat([], {maximumFractionDigits: 0});
-  const sizeFmt = new Intl.NumberFormat([], {maximumFractionDigits: 1});
-  const trim = $("#trim").prop("checked");
-  for (let recording of camera.recordingsData.recordings) {
-    const duration = (recording.endTime90k - recording.startTime90k) / 90000;
-    let row = $('<tr class="r"/>');
-    const startTime90k = trim && recording.startTime90k < camera.recordingsRange.startTime90k
-        ? camera.recordingsRange.startTime90k : recording.startTime90k;
-    const endTime90k = trim && recording.endTime90k > camera.recordingsRange.endTime90k
-        ? camera.recordingsRange.endTime90k : recording.endTime90k;
-    let formattedStart = formatTime(startTime90k);
-    let formattedEnd = formatTime(endTime90k);
-    const singleDateStr = camera.recordingsRange.singleDateStr;
-    if (singleDateStr !== null && formattedStart.startsWith(singleDateStr)) {
-      formattedStart = formattedStart.substr(11);
-    }
-    if (singleDateStr !== null && formattedEnd.startsWith(singleDateStr)) {
-      formattedEnd = formattedEnd.substr(11);
-    }
-    row.append(
-        $("<td/>").text(formattedStart),
-        $("<td/>").text(formattedEnd),
-        $("<td/>").text(recording.videoSampleEntryWidth + "x" + recording.videoSampleEntryHeight),
-        $("<td/>").text(frameRateFmt.format(recording.videoSamples / duration)),
-        $("<td/>").text(sizeFmt.format(recording.sampleFileBytes  / 1048576) + " MB"),
-        $("<td/>").text(sizeFmt.format(recording.sampleFileBytes / duration * .000008) + " Mbps"));
-    row.on("click", function() { onSelectVideo(camera, camera.recordingsRange, recording); });
-    tbody.append(row);
-  }
-};
-
-function reselectDateRange(startDateStr, endDateStr) {
-  selectedRange.startDateStr = startDateStr;
-  selectedRange.endDateStr = endDateStr;
-  selectedRange.startTime90k = parseDateTime(startDateStr, selectedRange.startTimeStr, false);
-  selectedRange.endTime90k = parseDateTime(endDateStr, selectedRange.endTimeStr, true);
-  fetch();
-}
-
-// Run when selectedRange is populated/changed or when split changes.
-function fetch() {
-  console.log('Fetching ', formatTime(selectedRange.startTime90k), ' to ',
-              formatTime(selectedRange.endTime90k));
-  let split = $("#split").val();
-  for (let camera of cameras) {
-    let url = apiUrl + 'cameras/' + camera.uuid + '/recordings?startTime90k=' +
-              selectedRange.startTime90k + '&endTime90k=' + selectedRange.endTime90k;
-    if (split !== '') {
-      url += '&split90k=' + split;
-    }
-    if (url === camera.recordingsUrl) {
-      continue;  // nothing to do.
-    }
-    if (camera.recordingsReq !== null) {
-      camera.recordingsReq.abort();
-    }
-    let tbody = $("#tab-" + camera.uuid);
-    $(".r", tbody).remove();
-    $(".loading", tbody).show();
-    let r = req(url);
-    camera.recordingsUrl = url;
-    camera.recordingsRange = selectedRange;
-    camera.recordingsReq = r;
-    r.always(function() { camera.recordingsReq = null; });
-    r.then(function(data, status, req) {
-      // Sort recordings in descending order.
-      data.recordings.sort(function(a, b) { return b.startId - a.startId; });
-      camera.recordingsData = data;
-      formatRecordings(camera);
-    }).catch(function(data, status, err) {
-      console.log(url, ' load failed: ', status, ': ', err);
-    });
-  }
-}
-
-// Run initially and when changing camera filter.
-function setupCalendar() {
-  let merged = {};
-  for (const camera of cameras) {
-    if (!camera.enabled) {
-      continue;
-    }
-    for (const dateStr in camera.days) {
-      merged[dateStr] = true;
-    }
-  }
-  let minDateStr = '9999-99-99';
-  let maxDateStr = '0000-00-00';
-  for (const dateStr in merged) {
-    if (dateStr > maxDateStr) {
-      maxDateStr = dateStr;
-    }
-    if (dateStr < minDateStr) {
-      minDateStr = dateStr;
-    }
-  }
-  let from = $("#start-date");
-  let to = $("#end-date");
-  let beforeShowDay = function(date) {
-    let dateStr = date.toISOString().substr(0, 10);
-    return [dateStr in merged, "", ""];
-  }
-  if ($("#end-date-same").prop("checked")) {
-    from.datepicker("option", {
-      dateFormat: $.datepicker.ISO_8601,
-      minDate: minDateStr,
-      maxDate: maxDateStr,
-      onSelect: function(dateStr, picker) {
-        reselectDateRange(dateStr, dateStr);
-      },
-      beforeShowDay: beforeShowDay,
-      disabled: false,
-    });
-    to.datepicker("destroy");
-    to.datepicker({disabled: true});
-  } else {
-    from.datepicker("option", {
-      dateFormat: $.datepicker.ISO_8601,
-      minDate: minDateStr,
-      onSelect: function(dateStr, picker) {
-        to.datepicker("option", "minDate", from.datepicker("getDate").toISOString().substr(0, 10));
-        reselectDateRange(dateStr, to.datepicker("getDate").toISOString().substr(0, 10));
-      },
-      beforeShowDay: beforeShowDay,
-      disabled: false,
-    });
-    to.datepicker("option", {
-      dateFormat: $.datepicker.ISO_8601,
-      minDate: from.datepicker("getDate"),
-      maxDate: maxDateStr,
-      onSelect: function(dateStr, picker) {
-        from.datepicker("option", "maxDate", to.datepicker("getDate").toISOString().substr(0, 10));
-        reselectDateRange(from.datepicker("getDate").toISOString().substr(0, 10), dateStr);
-      },
-      beforeShowDay: beforeShowDay,
-      disabled: false,
-    });
-    to.datepicker("setDate", from.datepicker("getDate"));
-    from.datepicker("option", {maxDate: to.datepicker("getDate")});
-  }
-  const date = from.datepicker("getDate");
-  if (date !== null) {
-    const dateStr = date.toISOString().substr(0, 10);
-    reselectDateRange(dateStr, dateStr);
-  }
-};
-
-function onCameraChange(event, camera) {
-  camera.enabled = event.target.checked;
-  if (camera.enabled) {
-    $("#tab-" + camera.uuid).show();
-  } else {
-    $("#tab-" + camera.uuid).hide();
-  }
-  console.log('Camera ', camera.shortName, camera.enabled ? 'enabled' : 'disabled');
-  setupCalendar();
-}
-
-// Parses the given date and time string into a valid time90k or null.
-function parseDateTime(dateStr, timeStr, isEnd) {
-  // Match HH:mm[:ss[:FFFFF]][+-HH:mm]
-  // Group 1 is the hour and minute (HH:mm).
-  // Group 2 is the seconds (:ss), if any.
-  // Group 3 is the fraction (FFFFF), if any.
-  // Group 4 is the zone (+-HH:mm), if any.
-  const timeRe =
-      /^([0-9]{1,2}:[0-9]{2})(?:(:[0-9]{2})(?::([0-9]{5}))?)?([+-][0-9]{1,2}:?(?:[0-9]{2})?)?$/;
-
-  if (timeStr === '') {
-    const m = moment.tz(dateStr, zone);
-    if (isEnd) {
-      m.add({days: 1});
-    }
-    return m.valueOf() * 90;
-  }
-
-  const match = timeRe.exec(timeStr);
-  if (match === null) {
-    return null;
-  }
-
-  const orBlank = function(s) { return s === undefined ? "" : s; };
-  const datetimeStr = dateStr + 'T' + match[1] + orBlank(match[2]) + orBlank(match[4]);
-  const m = moment.tz(datetimeStr, zone);
-  if (!m.isValid()) {
-    return null;
-  }
-
-  const frac = match[3] === undefined ? 0 : parseInt(match[3], 10);
-  return m.valueOf() * 90 + frac;
-}
-
-function onTimeChange(e, isEnd) {
-  let parsed = parseDateTime(isEnd ? selectedRange.endDateStr : selectedRange.startDateStr,
-                             e.target.value, isEnd);
-  if (parsed == null) {
-    console.log('bad time change');
-    $(e.target).addClass('ui-state-error');
-    return;
-  }
-  $(e.target).removeClass('ui-state-error');
-  console.log(isEnd ? "end" : "start", ' time change to: ', parsed, ' (', formatTime(parsed), ')');
-  if (isEnd) {
-    selectedRange.endTimeStr = e.target.value;
-    selectedRange.endTime90k = parsed;
-  } else {
-    selectedRange.startTimeStr = e.target.value;
-    selectedRange.startTime90k = parsed;
-  }
-  fetch();
-}
-
-function onReceivedCameras(data) {
-  let fieldset = $("#cameras");
-  if (data.cameras.length === 0) {
-    return;
-  }
-  var reqs = [];
-  let videos = $("#videos");
-  for (let camera of data.cameras) {
-    const id = "cam-" + camera.uuid;
-    let checkBox = $('<input type="checkbox" checked>').attr("name", id).attr("id", id);
-    checkBox.change(function(event) { onCameraChange(event, camera); });
-    fieldset.append(checkBox,
-                    $("<label/>").attr("for", id).text(camera.shortName),
-                    $("<br/>"));
-    let tab = $("<tbody>").attr("id", "tab-" + camera.uuid);
-    tab.append(
-        $('<tr class="name">').append($('<th colspan=6/>').text(camera.shortName)),
-        $('<tr class="hdr"><th>start</th><th>end</th><th>resolution</th><th>fps</th><th>size</th><th>bitrate</th></tr>'),
-        $('<tr class="loading"><td colspan=6>loading...</td></tr>'));
-    videos.append(tab);
-    camera.enabled = true;
-    camera.recordingsUrl = null;
-    camera.recordingsRange = null;
-    camera.recordingsData = null;
-    camera.recordingsReq = null;
-  }
-  $("#end-date-same").change(function(e) { setupCalendar(); });
-  $("#end-date-other").change(function(e) { setupCalendar(); });
-  $("#start-date").datepicker({disabled: true});
-  $("#end-date").datepicker({disabled: true});
-  $("#start-time").change(function(e) { onTimeChange(e, false); });
-  $("#end-time").change(function(e) { onTimeChange(e, true); });
-  $("#split").change(function(e) {
-    if (selectedRange.startTime90k !== null) {
-      fetch();
-    }
-  });
-  $("#trim").change(function(e) {
-    // Changing the trim doesn't need to refetch data, but it does need to
-    // reformat the tables.
-    let newTrim = e.target.checked;
-    for (camera of cameras) {
-      if (camera.recordingsData !== null) {
-        formatRecordings(camera);
-      }
-    }
-  });
-  zone = data.timeZoneName;
-  cameras = data.cameras;
-  console.log('Loaded cameras.');
-  setupCalendar();
-}
 
+// On document load, start application
 $(function() {
   $(document).tooltip();
-  req(apiUrl + '?days=true').then(function(data, status, req) {
-    onReceivedCameras(data);
-  }).catch(function(data, status, err) {
-    console.log('cameras load failed: ', status, err);
-  });
+  (new NVRApplication()).start();
 });
diff --git a/ui-src/lib/MoonfireAPI.js b/ui-src/lib/MoonfireAPI.js
new file mode 100644
index 0000000..ff461d2
--- /dev/null
+++ b/ui-src/lib/MoonfireAPI.js
@@ -0,0 +1,151 @@
+// vim: set et sw=2 ts=2:
+//
+// This file is part of Moonfire NVR, a security camera digital video recorder.
+// Copyright (C) 2018 Dolf Starreveld <dolf@starreveld.com>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// In addition, as a special exception, the copyright holders give
+// permission to link the code of portions of this program with the
+// OpenSSL library under certain conditions as described in each
+// individual source file, and distribute linked combinations including
+// the two.
+//
+// You must obey the GNU General Public License in all respects for all
+// of the code used other than OpenSSL. If you modify file(s) with this
+// exception, you may extend this exception to your version of the
+// file(s), but you are not obligated to do so. If you do not wish to do
+// so, delete this exception statement from your version. If you delete
+// this exception statement from all source files in the program, then
+// also delete it here.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import $ from 'jquery';
+import URLBuilder from './support/URLBuilder';
+
+/**
+ * Class to insulate rest of app from details of Moonfire API.
+ *
+ * Can produce URLs for specifc operations, or a request that has been
+ * started and can have handlers attached.
+ */
+export default class MoonfireAPI {
+  /**
+   * Construct.
+   *
+   * The defaults correspond to a standard Moonfire installation on the
+   * same host that this code runs on.
+   *
+   * Requesting relative URLs effectively disregards the host and port options.
+   *
+   * @param  {String} options.host         Host where the API resides
+   * @param  {Number} options.port         Port on which the API resides
+   * @param  {[type]} options.relativeUrls True if we should produce relative
+   *                                       urls
+   */
+  constructor({host = 'localhost', port = 8080, relativeUrls = true} = {}) {
+    const url = new URL('/api/', `http://${host}`);
+    url.protocol = 'http:';
+    url.hostname = host;
+    url.port = port;
+    console.log('API: ' + url.origin + url.pathname);
+    this._builder = new URLBuilder(url.origin + url.pathname);
+  }
+
+  /**
+   * URL that will cause the state of the NVR to be returned.
+   *
+   * @param  {Boolean} days True if a return of days with available recordings
+   *                        is desired.
+   * @return {String}       Constructed url
+   */
+  nvrUrl(days = true) {
+    return this._builder.makeUrl('', {days: days});
+  }
+
+  /**
+   * URL that will cause the state of a specific recording to be returned.
+   *
+   * @param  {String} cameraUUID UUID for the camera
+   * @param  {String} start90k   Timestamp for beginning of range of interest
+   * @param  {String} end90k     Timestamp for end of range of interest
+   * @param  {String} split90k   Desired maximum size of segments returned, or
+   *                             Infinity for infinite range
+   * @return {String}       Constructed url
+   */
+  recordingsUrl(cameraUUID, start90k, end90k, split90k = Infinity) {
+    const query = {
+      startTime90k: start90k,
+      endTime90k: end90k,
+    };
+    if (split90k != Infinity) {
+      query.split90k = split90k;
+    }
+    return this._builder.makeUrl(
+      'cameras/' + cameraUUID + '/recordings',
+      query
+    );
+  }
+
+  /**
+   * URL that will playback a video segment.
+   *
+   * @param  {String} cameraUUID UUID for the camera from whence comes the video
+   * @param  {Recording}  recording     Recording model object
+   * @param  {Range90k}  trimmedRange   Range restricting segments
+   * @param  {Boolean} timestampTrack   True if track should be timestamped
+   * @return {String}                 Constructed url
+   */
+  videoPlayUrl(cameraUUID, recording, trimmedRange, timestampTrack = true) {
+    let sParam = recording.startId;
+    if (recording.endId !== undefined) {
+      sParam += '-' + recording.endId;
+    }
+    let rel = '';
+    if (recording.startTime90k < trimmedRange.startTime90k) {
+      rel += trimmedRange.startTime90k - recording.startTime90k;
+    }
+    rel += '-';
+    if (recording.endTime90k > trimmedRange.endTime90k) {
+      rel += trimmedRange.endTime90k - recording.startTime90k;
+    }
+    if (rel !== '-') {
+      sParam += '.' + rel;
+    }
+    console.log('Video query:', {
+      s: sParam,
+      ts: timestampTrack,
+    });
+    return this._builder.makeUrl('cameras/' + cameraUUID + '/view.mp4', {
+      s: sParam,
+      ts: timestampTrack,
+    });
+  }
+
+  /**
+   * Start a new AJAX request with the specified URL.
+   *
+   * @param  {String} url     URL to use
+   * @param  {String} cacheOk True if cached results are OK
+   * @return {Request}        jQuery request type
+   */
+  request(url, cacheOk = false) {
+    return $.ajax(url, {
+      dataType: 'json',
+      headers: {
+        Accept: 'application/json',
+      },
+      cache: cacheOk,
+    });
+  }
+}
diff --git a/ui-src/lib/models/CalendarTSRange.js b/ui-src/lib/models/CalendarTSRange.js
new file mode 100644
index 0000000..97bc7a3
--- /dev/null
+++ b/ui-src/lib/models/CalendarTSRange.js
@@ -0,0 +1,245 @@
+// vim: set et sw=2 ts=2:
+//
+// This file is part of Moonfire NVR, a security camera digital video recorder.
+// Copyright (C) 2018 Dolf Starreveld <dolf@starreveld.com>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// In addition, as a special exception, the copyright holders give
+// permission to link the code of portions of this program with the
+// OpenSSL library under certain conditions as described in each
+// individual source file, and distribute linked combinations including
+// the two.
+//
+// You must obey the GNU General Public License in all respects for all
+// of the code used other than OpenSSL. If you modify file(s) with this
+// exception, you may extend this exception to your version of the
+// file(s), but you are not obligated to do so. If you do not wish to do
+// so, delete this exception statement from your version. If you delete
+// this exception statement from all source files in the program, then
+// also delete it here.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import Time90kParser from '../support/Time90kParser';
+import {TimeStamp90kFormatter} from '../support/TimeFormatter';
+import Range90k from './Range90k';
+
+/**
+ * Class representing a calendar timestamp range based on 90k units.
+ *
+ * A calendar timestamp differs from a Range90k in that a date string
+ * is involved on each end as well.
+ *
+ * The range has a start and end property (via getters) and each has three
+ * contained properties:
+ * - dateStr: string for date in ISO8601 format
+ * - timeStr: string for time in ISO8601 format
+ * - ts90k: Number for the timestamp in 90k units
+ */
+export default class CalendarTSRange {
+  /**
+   * Construct a range with a given timezone for display purposes.
+   *
+   * @param  {String} timeZone Desired timezone, e.g. 'America/Los_Angeles'
+   */
+  constructor(timeZone) {
+    this._start = {dateStr: null, timeStr: '', ts90k: null};
+    this._end = {dateStr: null, timeStr: '', ts90k: null};
+    // Don't need to keep timezone, but need parser and formatter
+    this._timeFormatter = new TimeStamp90kFormatter(timeZone);
+    this._timeParser = new Time90kParser(timeZone);
+  }
+
+  /**
+   * Determine if a valid start date string is present.
+   *
+   * @return {Boolean}
+   */
+  hasStart() {
+    return this.start.dateStr !== null;
+  }
+
+  /**
+   * Determine if a valid end date string is present.
+   *
+   * @return {Boolean}
+   */
+  hasEnd() {
+    return this.end.dateStr !== null;
+  }
+
+  /**
+   * Determine if a valid start and end date string is present.
+   *
+   * @return {Boolean}
+   */
+  hasRange() {
+    return this.hasStart() && this.hasEnd();
+  }
+
+  /**
+   * Return the range's start component.
+   *
+   * @return {object} Object containing dateStr, timeStr, and ts90k components
+   */
+  get start() {
+    return this._start;
+  }
+
+  /**
+   * Return the range's end component.
+   *
+   * @return {object} Object containing dateStr, timeStr, and ts90k components
+   */
+  get end() {
+    return this._end;
+  }
+
+  /**
+   * Return the range's start component's ts90k property
+   *
+   * @return {object} timestamp in 90k units
+   */
+  get startTime90k() {
+    return this.start.ts90k;
+  }
+
+  /**
+   * Return the range's end component's ts90k property
+   *
+   * @return {object} timestamp in 90k units
+   */
+  get endTime90k() {
+    return this.end.ts90k;
+  }
+
+  /**
+   * Determine if the range has a defined start timestamp in 90k units.
+   *
+   * @return {Boolean}
+   */
+  get hasStartTime() {
+    return this.startTime90k !== null;
+  }
+
+  /**
+   * Return the calendar range in terms of a range over 90k timestamps.
+   *
+   * @return {Range90k} Range object or null if don't have start and end
+   */
+  range90k() {
+    return this.hasRange()
+      ? new Range90k(this.startTime90k, this.endTime90k)
+      : null;
+  }
+
+  /**
+   * Internal function to update either start or end type range component.
+   *
+   * Strings are parsed to check if they are valid. Update only takes place
+   * if they are. Parsing is in accordance with the installed Time90kParser
+   * which means:
+   * - HH:MM:ss:FFFFFZ format, where each componet may be empty to indicate 0
+   * - YYYY-MM-DD format for the date
+   *
+   * NOTE: This function potentially modifies the content of the range
+   * argument. This is on purpose and should reflect the new range values
+   * upon succesful parsing!
+   *
+   * @param {object} range   A range component
+   * @param {String} dateStr Date string, if null range's value is re-used
+   * @param {String} timeStr Time string, if null range's value is re-used
+   * @param {Boolean} dateOnlyThenEndOfDay  True if one should be added to date
+   *                                        which is only meaningful if there
+   *                                        is no time specified here, and also
+   *                                        not present in the range.
+   * @return {Number} New timestamp if succesfully parsed, null otherwise
+   */
+  _setRangeTime(range, dateStr, timeStr, dateOnlyThenEndOfDay) {
+    dateStr = dateStr || range.dateStr;
+    timeStr = timeStr || range.timeStr;
+    const newTs90k = this._timeParser.parseDateTime90k(
+      dateStr,
+      timeStr,
+      dateOnlyThenEndOfDay
+    );
+    if (newTs90k !== null) {
+      range.dateStr = dateStr;
+      range.timeStr = timeStr;
+      range.ts90k = newTs90k;
+      return newTs90k;
+    }
+    return null;
+  }
+
+  /**
+   * Set start component of range from date and time strings.
+   *
+   * Uses _setRangeTime with appropriate dateOnlyThenEndOfDay value.
+   *
+   * @param {String} dateStr Date string
+   * @param {String} timeStr Time string
+   * @return {Number} New timestamp if succesfully parsed, null otherwise
+   */
+  setStartDate(dateStr, timeStr = null) {
+    return this._setRangeTime(this._start, dateStr, timeStr, false);
+  }
+
+  /**
+   * Set time of start component of range time string.
+   *
+   * Uses _setRangeTime with appropriate dateOnlyThenEndOfDay value.
+   *
+   * @param {String} timeStr Time string
+   * @return {Number} New timestamp if succesfully parsed, null otherwise
+   */
+  setStartTime(timeStr) {
+    return this._setRangeTime(this._start, null, timeStr, false);
+  }
+
+  /**
+   * Set end component of range from date and time strings.
+   *
+   * Uses _setRangeTime with appropriate addOne value.
+   *
+   * @param {String} dateStr Date string
+   * @param {String} timeStr Time string
+   * @return {Number} New timestamp if succesfully parsed, null otherwise
+   */
+  setEndDate(dateStr, timeStr = null) {
+    return this._setRangeTime(this._end, dateStr, timeStr, true);
+  }
+
+  /**
+   * Set time of end component of range time string.
+   *
+   * Uses _setRangeTime with appropriate addOne value.
+   *
+   * @param {String} timeStr Time string
+   * @return {Number} New timestamp if succesfully parsed, null otherwise
+   */
+  setEndTime(timeStr) {
+    return this._setRangeTime(this._end, null, timeStr, true);
+  }
+
+  /**
+   * Format a timestamp in 90k units in the manner consistent with
+   * what the parser of this module expects.
+   *
+   * @param  {Number} ts90k Timestamp in 90k units
+   * @return {String}       Formatted string
+   */
+  formatTimeStamp90k(ts90k) {
+    return this._timeFormatter.formatTimeStamp90k(ts90k);
+  }
+}
diff --git a/ui-src/lib/models/Camera.js b/ui-src/lib/models/Camera.js
new file mode 100644
index 0000000..3dc0f74
--- /dev/null
+++ b/ui-src/lib/models/Camera.js
@@ -0,0 +1,132 @@
+// vim: set et sw=2 ts=2:
+//
+// This file is part of Moonfire NVR, a security camera digital video recorder.
+// Copyright (C) 2018 Dolf Starreveld <dolf@starreveld.com>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// In addition, as a special exception, the copyright holders give
+// permission to link the code of portions of this program with the
+// OpenSSL library under certain conditions as described in each
+// individual source file, and distribute linked combinations including
+// the two.
+//
+// You must obey the GNU General Public License in all respects for all
+// of the code used other than OpenSSL. If you modify file(s) with this
+// exception, you may extend this exception to your version of the
+// file(s), but you are not obligated to do so. If you do not wish to do
+// so, delete this exception statement from your version. If you delete
+// this exception statement from all source files in the program, then
+// also delete it here.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import JsonWrapper from './JsonWrapper';
+import Range90k from './Range90k';
+
+/**
+ * Camera JSON wrapper.
+ */
+export default class Camera extends JsonWrapper {
+  /**
+   * Construct from JSON.
+   *
+   * @param  {JSON} cameraJson JSON for single camera.
+   */
+  constructor(cameraJson) {
+    super(cameraJson);
+  }
+
+  /**
+   * Get camera uuid.
+   *
+   * @return {String} Camera's uuid
+   */
+  get uuid() {
+    return this.json.uuid;
+  }
+
+  /**
+   * Get camera's short name.
+   *
+   * @return {String} Name of the camera
+   */
+  get shortName() {
+    return this.json.shortName;
+  }
+
+  /**
+   * Get camera's description.
+   *
+   * @return {String} Camera's description
+   */
+  get description() {
+    return this.json.description;
+  }
+
+  /**
+   * Get maximimum amount of storage allowed to be used for camera's video
+   * samples.
+   *
+   * @return {Number} Amount in bytes
+   */
+  get retainBytes() {
+    return this.json.retainBytes;
+  }
+
+  /**
+   * Get a Range90K object representing the range encompassing all available
+   * video samples for the camera.
+   *
+   * This range does not mean every second of the range has video!
+   *
+   * @return {Range90k} The camera's available recordings range
+   */
+  get range90k() {
+    return new Range90k(
+      this.json.minStartTime90k,
+      this.json.maxEndTime90k,
+      this.json.totalDuration90k
+    );
+  }
+
+  /**
+   * Get the total amount of storage currently taken up by the camera's video
+   * samples.
+   *
+   * @return {Number} Amount in bytes
+   */
+  get totalSampleFileBytes() {
+    return this.json.totalSampleFileBytes;
+  }
+
+  /**
+   * Get the list of the camera's days for which there are video samples.
+   *
+   * The result is a Map with dates as keys (in YYYY-MM-DD format) and each
+   * value is a Range90k object for that day. Here too, the range does not
+   * mean every second in the range has video, but presence of an entry for
+   * a day does mean there is at least one (however short) video segment
+   * available.
+   *
+   * @return {Map} Dates are keys, values are Range90K objects.
+   */
+  get days() {
+    return new Map(
+      Object.entries(this.json.days).map(function(t) {
+        let [k, v] = t;
+        v = new Range90k(v.startTime90k, v.endTime90k, v.totalDuration90k);
+        return [k, v];
+      })
+    );
+  }
+}
diff --git a/ui-src/lib/models/JsonWrapper.js b/ui-src/lib/models/JsonWrapper.js
new file mode 100644
index 0000000..7c48887
--- /dev/null
+++ b/ui-src/lib/models/JsonWrapper.js
@@ -0,0 +1,80 @@
+// vim: set et sw=2 ts=2:
+//
+// This file is part of Moonfire NVR, a security camera digital video recorder.
+// Copyright (C) 2018 Dolf Starreveld <dolf@starreveld.com>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// In addition, as a special exception, the copyright holders give
+// permission to link the code of portions of this program with the
+// OpenSSL library under certain conditions as described in each
+// individual source file, and distribute linked combinations including
+// the two.
+//
+// You must obey the GNU General Public License in all respects for all
+// of the code used other than OpenSSL. If you modify file(s) with this
+// exception, you may extend this exception to your version of the
+// file(s), but you are not obligated to do so. If you do not wish to do
+// so, delete this exception statement from your version. If you delete
+// this exception statement from all source files in the program, then
+// also delete it here.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * WeakMap that keeps our private data.
+ *
+ * @type {WeakMap}
+ */
+let _json = new WeakMap();
+
+/**
+ * Class to encapsulate recording JSON data.
+ * *
+ * The JSON is kept internally, but in a manner that does not allow direct
+ * access. If access is needed, use the "json()" method. Sub-classes for
+ * specific models shoudl provide the necessary getters instead.
+ */
+export default class JsonWrapper {
+  /**
+   * Accept JSON data to be encapsulated
+   *
+   * @param  {object} jsonData JSON data
+   */
+  constructor(jsonData) {
+    _json.set(this, jsonData);
+  }
+
+  /**
+   * Get associated JSON object.
+   *
+   * Use of this should be avoided. Use functions to access the
+   * data instead.
+   *
+   * @return {object} The JSON object.
+   */
+  get json() {
+    return _json.get(this);
+  }
+
+  /**
+   * @override
+   * @return {String} String version
+   */
+  toString() {
+    if (process.env.NODE_ENV === 'development') {
+      return this.json.toString();
+    } else {
+      return super.toString();
+    }
+  }
+}
diff --git a/ui-src/lib/models/Range.js b/ui-src/lib/models/Range.js
new file mode 100644
index 0000000..95745d5
--- /dev/null
+++ b/ui-src/lib/models/Range.js
@@ -0,0 +1,73 @@
+// vim: set et sw=2 ts=2:
+//
+// This file is part of Moonfire NVR, a security camera digital video recorder.
+// Copyright (C) 2018 Dolf Starreveld <dolf@starreveld.com>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// In addition, as a special exception, the copyright holders give
+// permission to link the code of portions of this program with the
+// OpenSSL library under certain conditions as described in each
+// individual source file, and distribute linked combinations including
+// the two.
+//
+// You must obey the GNU General Public License in all respects for all
+// of the code used other than OpenSSL. If you modify file(s) with this
+// exception, you may extend this exception to your version of the
+// file(s), but you are not obligated to do so. If you do not wish to do
+// so, delete this exception statement from your version. If you delete
+// this exception statement from all source files in the program, then
+// also delete it here.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class to represent ranges of values.
+ *
+ * The range has a "low", and "high" value property and is inclusive.
+ * The "size" property returns the difference between high and low.
+ */
+export default class Range {
+  /**
+   * Create a range.
+   *
+   * @param  {Number} low  Low value (inclusive) in range.
+   * @param  {Number} high High value (inclusive) in range.
+   */
+  constructor(low, high) {
+    if (high < low) {
+      console.log('Warning range swap: ' + low + ' - ' + high);
+      [low, high] = [high, low];
+    }
+    this.low = low;
+    this.high = high;
+  }
+
+  /**
+   * Size of the range.
+   *
+   * @return {Number} high - low
+   */
+  get size() {
+    return this.high - this.low;
+  }
+
+  /**
+   * Determine if value is inside the range.
+   *
+   * @param  {Number}  value Value to test
+   * @return {Boolean}
+   */
+  isInRange(value) {
+    return value >= this.low && value <= this.high;
+  }
+}
diff --git a/ui-src/lib/models/Range90k.js b/ui-src/lib/models/Range90k.js
new file mode 100644
index 0000000..fe5982e
--- /dev/null
+++ b/ui-src/lib/models/Range90k.js
@@ -0,0 +1,109 @@
+// vim: set et sw=2 ts=2:
+//
+// This file is part of Moonfire NVR, a security camera digital video recorder.
+// Copyright (C) 2018 Dolf Starreveld <dolf@starreveld.com>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// In addition, as a special exception, the copyright holders give
+// permission to link the code of portions of this program with the
+// OpenSSL library under certain conditions as described in each
+// individual source file, and distribute linked combinations including
+// the two.
+//
+// You must obey the GNU General Public License in all respects for all
+// of the code used other than OpenSSL. If you modify file(s) with this
+// exception, you may extend this exception to your version of the
+// file(s), but you are not obligated to do so. If you do not wish to do
+// so, delete this exception statement from your version. If you delete
+// this exception statement from all source files in the program, then
+// also delete it here.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import Range from './Range';
+
+/**
+ * WeakMap that keeps our private data.
+ *
+ * @type {WeakMap}
+ */
+let _range = new WeakMap();
+
+/**
+ * Subclass of Range to represent ranges over timestamps in 90k format.
+ *
+ * This mostly means added some getters with names that make more sense.
+ */
+export default class Range90k {
+  /**
+   * Create a range.
+   *
+   * @param  {Number} low  Low value (inclusive) in range.
+   * @param  {Number} high High value (inclusive) in range.
+   */
+  constructor(low, high) {
+    _range.set(this, new Range(low, high));
+  }
+
+  /**
+   * Return the range's start time.
+   *
+   * @return {Number} Number in 90k units
+   */
+  get startTime90k() {
+    return _range.get(this).low;
+  }
+
+  /**
+   * Return the range's end time.
+   *
+   * @return {Number} Number in 90k units
+   */
+  get endTime90k() {
+    return _range.get(this).high;
+  }
+
+  /**
+   * Return the range's duration.
+   *
+   * @return {Number} Number in 90k units
+   */
+  get duration90k() {
+    return _range.get(this).size;
+  }
+
+  /**
+   * Create a new range by trimming the current range against
+   * another.
+   *
+   * The returned range will lie completely within the provided range.
+   *
+   * @param  {Range90k} against Range the be used for limits
+   * @return {Range90k}         The trimmed range (always a new object)
+   */
+  trimmed(against) {
+    return new Range90k(
+      Math.max(this.startTime90k, against.startTime90k),
+      Math.min(this.endTime90k, against.endTime90k)
+    );
+  }
+
+  /**
+   * Return a copy of this range.
+   *
+   * @return {Range90k} A copy of this range object.
+   */
+  clone() {
+    return new Range90k(this.startTime90k, this.endTime90k);
+  }
+}
diff --git a/ui-src/lib/models/Recording.js b/ui-src/lib/models/Recording.js
new file mode 100644
index 0000000..cca027b
--- /dev/null
+++ b/ui-src/lib/models/Recording.js
@@ -0,0 +1,155 @@
+// vim: set et sw=2 ts=2:
+//
+// This file is part of Moonfire NVR, a security camera digital video recorder.
+// Copyright (C) 2018 Dolf Starreveld <dolf@starreveld.com>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// In addition, as a special exception, the copyright holders give
+// permission to link the code of portions of this program with the
+// OpenSSL library under certain conditions as described in each
+// individual source file, and distribute linked combinations including
+// the two.
+//
+// You must obey the GNU General Public License in all respects for all
+// of the code used other than OpenSSL. If you modify file(s) with this
+// exception, you may extend this exception to your version of the
+// file(s), but you are not obligated to do so. If you do not wish to do
+// so, delete this exception statement from your version. If you delete
+// this exception statement from all source files in the program, then
+// also delete it here.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import JsonWrapper from './JsonWrapper';
+import Range90k from '../models/Range90k';
+
+/**
+ * Class to encapsulate recording JSON data.
+ */
+export default class Recording extends JsonWrapper {
+  /**
+   * Accept JSON data to be encapsulated
+   *
+   * @param  {object} recordingJson JSON for a recording
+   */
+  constructor(recordingJson) {
+    super(recordingJson);
+  }
+
+  /**
+   * Get recording's startId.
+   *
+   * @return {String} startId for recording
+   */
+  get startId() {
+    return this.json.startId;
+  }
+
+  /**
+   * Get recording's endId.
+   *
+   * @return {String} endId for recording
+   */
+  get endId() {
+    return this.json.endId;
+  }
+
+  /**
+   * Return start time of recording in 90k units.
+   * @return {Number} Time in units of 90k parts of a second
+   */
+  get startTime90k() {
+    return this.json.startTime90k;
+  }
+
+  /**
+   * Return end time of recording in 90k units.
+   * @return {Number} Time in units of 90k parts of a second
+   */
+  get endTime90k() {
+    return this.json.endTime90k;
+  }
+
+  /**
+   * Return duration of recording in 90k units.
+   * @return {Number} Time in units of 90k parts of a second
+   */
+  get duration90k() {
+    const data = this.json;
+    return data.endTime90k - data.startTime90k;
+  }
+
+  /**
+   * Compute the range of the recording in 90k timestamp units,
+   * optionally trimmed by another range.
+   *
+   * @param  {Range90k} trimmedAgainst Optional range to trim against
+   * @return {Range90k}                Resulting range
+   */
+  range90k(trimmedAgainst = null) {
+    let result = new Range90k(this.startTime90k, this.endTime90k);
+    return trimmedAgainst ? result.trimmed(trimmedAgainst) : result;
+  }
+  /**
+   * Return duration of recording in seconds.
+   * @return {Number} Time in units of seconds.
+   */
+  get duration() {
+    return this.duration90k / 90000;
+  }
+
+  /**
+   * Get the number of bytes used by sample storage.
+   *
+   * @return {Number} Total bytes used
+   */
+  get sampleFileBytes() {
+    return this.json.sampleFileBytes;
+  }
+
+  /**
+   * Get the number of video samples (frames) for the recording.
+   *
+   * @return {Number} Total bytes used
+   */
+  get frameCount() {
+    return this.json.videoSamples;
+  }
+
+  /**
+   * Get the has for the video samples.
+   *
+   * @return {String} Hash
+   */
+  get videoSampleEntryHash() {
+    return this.json.videoSampleEntrySha1;
+  }
+
+  /**
+   * Get the width of the frame(s) of the video samples.
+   *
+   * @return {Number} Width in pixels
+   */
+  get videoSampleEntryWidth() {
+    return this.json.videoSampleEntryWidth;
+  }
+
+  /**
+   * Get the height of the frame(s) of the video samples.
+   *
+   * @return {Number} Height in pixels
+   */
+  get videoSampleEntryHeight() {
+    return this.json.videoSampleEntryHeight;
+  }
+}
diff --git a/ui-src/lib/support/RecordingFormatter.js b/ui-src/lib/support/RecordingFormatter.js
new file mode 100644
index 0000000..8e3e638
--- /dev/null
+++ b/ui-src/lib/support/RecordingFormatter.js
@@ -0,0 +1,101 @@
+// vim: set et sw=2 ts=2:
+//
+// This file is part of Moonfire NVR, a security camera digital video recorder.
+// Copyright (C) 2018 Dolf Starreveld <dolf@starreveld.com>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// In addition, as a special exception, the copyright holders give
+// permission to link the code of portions of this program with the
+// OpenSSL library under certain conditions as described in each
+// individual source file, and distribute linked combinations including
+// the two.
+//
+// You must obey the GNU General Public License in all respects for all
+// of the code used other than OpenSSL. If you modify file(s) with this
+// exception, you may extend this exception to your version of the
+// file(s), but you are not obligated to do so. If you do not wish to do
+// so, delete this exception statement from your version. If you delete
+// this exception statement from all source files in the program, then
+// also delete it here.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import TimeFormatter from './TimeFormatter';
+
+/**
+ * Formatter for framerates
+ * @type {Intl} Formatter
+ */
+const frameRateFmt = new Intl.NumberFormat([], {
+  maximumFractionDigits: 0,
+});
+
+/**
+ * Formatter for sizes
+ * @type {Intl} Formatter
+ */
+const sizeFmt = new Intl.NumberFormat([], {
+  maximumFractionDigits: 1,
+});
+
+/**
+ * Class encapsulating formatting of recording time ranges.
+ */
+export default class RecordingFormatter {
+  /**
+   * Construct with desired time format and timezone.
+   *
+   * @param  {String} formatStr Time format string
+   * @param  {String} tz        Timezone
+   */
+  constructor(formatStr, tz) {
+    this._timeFormatter = new TimeFormatter(formatStr, tz);
+    this._singleDateStr = null;
+  }
+
+  /**
+   * Change time format string, preserving timezone.
+   *
+   * @param  {String} formatStr Time format string
+   */
+  set timeFormat(formatStr) {
+    this._timeFormatter = new TimeFormatter(formatStr, this._timeFormatter.tz);
+  }
+
+  /**
+   * Produce an object whose properties are individual pieces of a recording's
+   * data, formatted for display purposes.
+   * 
+   * @param  {Recording} recording    Recording to be formatted
+   * @param  {Range90k} trimRange     Optional time range for trimming the
+   *                                  recording's interval
+   * @return {Object}                 Map, keyed by _columnOrder element
+   */
+  format(recording, trimRange = null) {
+    const duration = recording.duration;
+    const trimmedRange = recording.range90k(trimRange);
+    return {
+      start: this._timeFormatter.formatTimeStamp90k(trimmedRange.startTime90k),
+      end: this._timeFormatter.formatTimeStamp90k(trimmedRange.endTime90k),
+      resolution:
+        recording.videoSampleEntryWidth +
+        'x' +
+        recording.videoSampleEntryHeight,
+      frameRate: frameRateFmt.format(recording.frameCount / duration),
+      size: sizeFmt.format(recording.sampleFileBytes / 1048576) + ' MB',
+      rate:
+        sizeFmt.format(recording.sampleFileBytes / duration * 0.000008) +
+        ' Mbps',
+    };
+  }
+}
diff --git a/ui-src/lib/support/Time90kParser.js b/ui-src/lib/support/Time90kParser.js
new file mode 100644
index 0000000..e47dc0e
--- /dev/null
+++ b/ui-src/lib/support/Time90kParser.js
@@ -0,0 +1,134 @@
+// vim: set et sw=2 ts=2:
+//
+// This file is part of Moonfire NVR, a security camera digital video recorder.
+// Copyright (C) 2018 Dolf Starreveld <dolf@starreveld.com>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// In addition, as a special exception, the copyright holders give
+// permission to link the code of portions of this program with the
+// OpenSSL library under certain conditions as described in each
+// individual source file, and distribute linked combinations including
+// the two.
+//
+// You must obey the GNU General Public License in all respects for all
+// of the code used other than OpenSSL. If you modify file(s) with this
+// exception, you may extend this exception to your version of the
+// file(s), but you are not obligated to do so. If you do not wish to do
+// so, delete this exception statement from your version. If you delete
+// this exception statement from all source files in the program, then
+// also delete it here.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import moment from 'moment-timezone';
+
+/**
+ * Regular expression for parsing time format from timestamps.
+ *
+ * These regex captures groups:
+ * 0: whole match or null if none
+ * 1: HH:MM portion, or undefined
+ * 2: :ss portion, or undefined
+ * 3: FFFFF portion, or undefined
+ * 4: [+-]hh[:mm] portion, or undefined
+ *
+ * @type {RegExp}
+ */
+const timeRe = new RegExp(
+  [
+    '^', // Start
+    '([0-9]{1,2}:[0-9]{2})', // Capture HH:MM
+    '(?:(:[0-9]{2})(?::([0-9]{5}))?)?', // Capture [:ss][:FFFFF]
+    '([+-][0-9]{1,2}:?(?:[0-9]{2})?)?', // Capture [+-][zone]
+    '$', // End
+  ].join('')
+);
+
+/**
+ * Class to parse time strings that possibly contain fractional
+ * seconds in 90k units into a Number representation.
+ *
+ * The general format:
+ * Expected timestamps are in this format:
+ *   HH:MM[:ss][:FFFFF][[+-]hh[:mm]]
+ * where
+ * HH = hours in one or two digits
+ * MM = minutes in one or two digits
+ * ss = seconds in one or two digits
+ * FFFFF = fractional seconds in 90k units in exactly 5 digits
+ * hh = hours of timezone offset in one or two digits
+ * mm = minutes of timezone offset in one or two digits
+ *
+ */
+export default class Time90kParser {
+  /**
+   * Construct with specific timezone.
+   *
+   * @param  {String} tz Timezone
+   */
+  constructor(tz) {
+    self._tz = tz;
+  }
+
+  /**
+   * Set (another) timezone.
+   *
+   * @param  {String} tz Timezone
+   */
+  set tz(tz) {
+    self._tz = tz;
+  }
+
+  /**
+   * Parses the given date and time string into a valid time90k or null.
+   *
+   * The date and time strings must be compatible with the partial ISO-8601
+   * formats for each, or acceptable to the standard Date object.
+   *
+   * If only a date is specified and dateOnlyThenEndOfDay is false, the 00:00
+   * timestamp for that day is returned. If dateOnlyThenEndOfDay is true, the
+   * 00:00 of the very next day is returned.
+   *
+   * @param  {String}  dateStr String representing date
+   * @param  {String}  timeStr String representing time
+   * @param  {Boolean} dateOnlyThenEndOfDay   If only a date was specified and
+   *                                          this is true, then return time
+   *                                          for the end of day
+   * @return {Number}          Timestamp in 90k units, or null if parsing failed
+   */
+  parseDateTime90k(dateStr, timeStr, dateOnlyThenEndOfDay) {
+    // If just date, no special handling needed
+    if (!timeStr) {
+      const m = moment.tz(dateStr, self._tz);
+      if (dateOnlyThenEndOfDay) {
+        m.add({days: 1});
+      }
+      return m.valueOf() * 90;
+    }
+
+    const [match, hhmm, ss, fffff, tz] = timeRe.exec(timeStr) || [];
+    if (!match) {
+      return null;
+    }
+
+    const orBlank = (s) => s || '';
+    const datetimeStr = dateStr + 'T' + hhmm + orBlank(ss) + orBlank(tz);
+    const m = moment.tz(datetimeStr, self._tz);
+    if (!m.isValid()) {
+      return null;
+    }
+
+    const frac = fffff === undefined ? 0 : parseInt(fffff, 10);
+    return m.valueOf() * 90 + frac;
+  }
+}
diff --git a/ui-src/lib/support/TimeFormatter.js b/ui-src/lib/support/TimeFormatter.js
new file mode 100644
index 0000000..582f0cd
--- /dev/null
+++ b/ui-src/lib/support/TimeFormatter.js
@@ -0,0 +1,166 @@
+// vim: set et sw=2 ts=2:
+//
+// This file is part of Moonfire NVR, a security camera digital video recorder.
+// Copyright (C) 2018 Dolf Starreveld <dolf@starreveld.com>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// In addition, as a special exception, the copyright holders give
+// permission to link the code of portions of this program with the
+// OpenSSL library under certain conditions as described in each
+// individual source file, and distribute linked combinations including
+// the two.
+//
+// You must obey the GNU General Public License in all respects for all
+// of the code used other than OpenSSL. If you modify file(s) with this
+// exception, you may extend this exception to your version of the
+// file(s), but you are not obligated to do so. If you do not wish to do
+// so, delete this exception statement from your version. If you delete
+// this exception statement from all source files in the program, then
+// also delete it here.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import moment from 'moment-timezone';
+
+export const internalTimeFormat = 'YYYY-MM-DDTHH:mm:ss:FFFFFZ';
+export const defaultTimeFormat = 'YYYY-MM-DD HH:mm:ss';
+
+/**
+ * Class for formatting timestamps.
+ *
+ * There are methods for formatting timestamp in three different unit systems:
+ * - 90k: The units are multiples of 1/90,000th of a second
+ * - Sec: The units are multiples of seconds
+ * - Ms: The units are multiples of milliseconds
+ *
+ * The object is initialized with a format string and a timezone. The timezone
+ * is necessary to format times in that timezone.
+ *
+ * The format string is based on those accepted by moment.js with one addition
+ * detailed in formatTimeStamp90k.
+ */
+export default class TimeFormatter {
+  /**
+   * Construct with specific format string and timezone.
+   *
+   * @param  {String} formatStr Format specification string
+   * @param  {String} tz        Timezone, e.g. "America/Los_Angeles"
+   */
+  constructor(formatStr, tz) {
+    this._formatStr = formatStr || defaultTimeFormat;
+    this._tz = tz;
+  }
+
+  /**
+   * Get current format string
+   *
+   * @return {String} Format specification string
+   */
+  get formatStr() {
+    return this._formatStr;
+  }
+
+  /**
+   * Get current timezone
+   *
+   * @return {String} Timezone
+   */
+  get tz() {
+    return this._tz;
+  }
+
+  /**
+   * Produces a human-readable timestamp in 90k units.
+   *
+   * The format is anything understood by moment's format function,
+   * with the addition of one special format indicator consisting of
+   * five successive Fs. If this pattern is used more than once,
+   * only the first one will be handled. Subsequent ones will become
+   * literal strings with five Fs.
+   *
+   * Using normal format codes, precision of up the three S (SSS) is
+   * supported by moment to display decimal seconds. "moment" truncates
+   * the value passed in to its constructor, effectively truncating
+   * any fractional values in the timestamp. This function rounds
+   * to compensate for that, except in the case of the FFFFF pattern,
+   * where rounding is left out for historical reasons.
+   *
+   * FFFFF produces a string indicating how many 90k units are present
+   * in the sub-second portion of the timestamp. Therefore this is *not*
+   * a decimal fraction!
+   *
+   * @param {Number} ts90k timestamp in 90,000ths of a second resolution
+   * @return {String}        Formatted timestamp
+   */
+  formatTimeStamp90k(ts90k) {
+    let format = this._formatStr;
+    const ms = ts90k / 90.0;
+    const fracFmt = 'FFFFF';
+    let fracLoc = format.indexOf(fracFmt);
+    if (fracLoc != -1) {
+      const frac = ts90k % 90000;
+      format =
+        format.substr(0, fracLoc) +
+        String(100000 + frac).substr(1) +
+        format.substr(fracLoc + fracFmt.length);
+    }
+    return moment.tz(ms, this._tz).format(format);
+  }
+}
+
+/**
+ * Specialized class similar to TimeFormatter but forcing a specific time format
+ * for internal usage purposes.
+ */
+export class TimeStamp90kFormatter {
+  /**
+   * Construct from just a timezone specification.
+   *
+   * @param  {String} tz Timezone
+   */
+  constructor(tz) {
+    this._formatter = new TimeFormatter(internalTimeFormat, tz);
+  }
+
+  /**
+   * Format a timestamp in 90k units using internal format.
+   *
+   * @param {Number} ts90k timestamp in 90,000ths of a second resolution
+   * @return {String}        Formatted timestamp
+   */
+  formatTimeStamp90k(ts90k) {
+    return this._formatter.formatTimeStamp90k(ts90k);
+  }
+
+  /**
+   * Given two timestamp return formatted versions of both, where the second
+   * one may have been shortened if it falls on the same date as the first one.
+   *
+   * @param  {Number} ts1 First timestamp in 90k units
+   * @param  {Number} ts2 Secodn timestamp in 90k units
+   * @return {Array}     Array with two elements: [ ts1Formatted, ts2Formatted ]
+   */
+  formatSameDayShortened(ts1, ts2) {
+    let ts1Formatted = this.formatTimeStamp90k(ts1);
+    let ts2Formatted = this.formatTimeStamp90k(ts2);
+    let timePos = this._formatter.formatStr.indexOf('T');
+    if (timePos != -1) {
+      const datePortion = ts1Formatted.substr(0, timePos);
+      ts1Formatted = datePortion + ' ' + ts1Formatted.substr(timePos + 1);
+      if (ts2Formatted.startsWith(datePortion)) {
+        ts2Formatted = ts2Formatted.substr(timePos + 1);
+      }
+    }
+    return [ts1Formatted, ts2Formatted];
+  }
+}
diff --git a/ui-src/lib/support/URLBuilder.js b/ui-src/lib/support/URLBuilder.js
new file mode 100644
index 0000000..6006541
--- /dev/null
+++ b/ui-src/lib/support/URLBuilder.js
@@ -0,0 +1,81 @@
+// vim: set et sw=2 ts=2:
+//
+// This file is part of Moonfire NVR, a security camera digital video recorder.
+// Copyright (C) 2018 Dolf Starreveld <dolf@starreveld.com>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// In addition, as a special exception, the copyright holders give
+// permission to link the code of portions of this program with the
+// OpenSSL library under certain conditions as described in each
+// individual source file, and distribute linked combinations including
+// the two.
+//
+// You must obey the GNU General Public License in all respects for all
+// of the code used other than OpenSSL. If you modify file(s) with this
+// exception, you may extend this exception to your version of the
+// file(s), but you are not obligated to do so. If you do not wish to do
+// so, delete this exception statement from your version. If you delete
+// this exception statement from all source files in the program, then
+// also delete it here.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class to help with URL construction.
+ */
+export default class URLBuilder {
+  /**
+   * Construct builder with a base url.
+   *
+   * It is possible to indicate the we only want to extract relative
+   * urls. In that case, pass a dummy scheme and host.
+   *
+   * @param  {String}  base     Base url, including scheme and host
+   * @param  {Boolean} relative True if relative urls desired
+   */
+  constructor(base, relative = true) {
+    this._baseUrl = base;
+    this._relative = relative;
+  }
+
+  /**
+   * Append query parameters from a map to a URL.
+   *
+   * This is cumulative, so if you call this multiple times on the same URL
+   * the resulting URL will have the combined query parameters and values.
+   *
+   * @param {URL} url   URL to add query parameters to
+   * @param {Object} query Object with parameter name/value pairs
+   * @return {URL} URL where query params have been added
+   */
+  _addQuery(url, query = {}) {
+    Object.entries(query).forEach(([k, v]) => url.searchParams.set(k, v));
+    return url;
+  }
+
+  /**
+   * Construct a String url based on an initial path and an optional set
+   * of query parameters.
+   *
+   * The url will be constructed based on the base url, with path appended.
+   *
+   * @param  {String} path  Path to be added to base url
+   * @param  {Object} query Object with query parameters
+   * @return {String}       Formatted url, relative if so configured
+   */
+  makeUrl(path, query = {}) {
+    const url = new URL(path || '', this._baseUrl);
+    this._addQuery(url, query);
+    return this._relative ? url.pathname + url.search : url.href;
+  }
+}
diff --git a/ui-src/lib/views/CalendarView.js b/ui-src/lib/views/CalendarView.js
new file mode 100644
index 0000000..1e310ee
--- /dev/null
+++ b/ui-src/lib/views/CalendarView.js
@@ -0,0 +1,418 @@
+// vim: set et sw=2 ts=2:
+//
+// This file is part of Moonfire NVR, a security camera digital video recorder.
+// Copyright (C) 2018 Dolf Starreveld <dolf@starreveld.com>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// In addition, as a special exception, the copyright holders give
+// permission to link the code of portions of this program with the
+// OpenSSL library under certain conditions as described in each
+// individual source file, and distribute linked combinations including
+// the two.
+//
+// You must obey the GNU General Public License in all respects for all
+// of the code used other than OpenSSL. If you modify file(s) with this
+// exception, you may extend this exception to your version of the
+// file(s), but you are not obligated to do so. If you do not wish to do
+// so, delete this exception statement from your version. If you delete
+// this exception statement from all source files in the program, then
+// also delete it here.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import $ from 'jquery';
+import 'jquery-ui/themes/base/button.css';
+import 'jquery-ui/themes/base/core.css';
+import 'jquery-ui/themes/base/datepicker.css';
+import 'jquery-ui/themes/base/dialog.css';
+import 'jquery-ui/themes/base/resizable.css';
+import 'jquery-ui/themes/base/theme.css';
+import 'jquery-ui/themes/base/tooltip.css';
+import 'jquery-ui/ui/widgets/datepicker';
+import 'jquery-ui/ui/widgets/dialog';
+import 'jquery-ui/ui/widgets/tooltip';
+
+import DatePickerView from './DatePickerView';
+import CalendarTSRange from '../models/CalendarTSRange';
+import {TimeStamp90kFormatter} from '../support/TimeFormatter';
+import Time90kParser from '../support/Time90kParser';
+
+/**
+ * Find the earliest and latest dates from an array of CameraView
+ * objects.
+ *
+ * Each camera view has a "days" property, whose keys identify days with
+ * recordings. All such dates are collected and then scanned to find earliest
+ * and latest dates.
+ *
+ * "days" for camera views that are not enabled are ignored.
+ *
+ * @param  {[Iterable]} cameraViews Camera views to look into
+ * @return {[Set, String, String]}       Array with set of all dates, and
+ *                                       earliest and latest dates
+ */
+function minMaxDates(cameraViews) {
+  /*
+   * Produce a set with all dates, across all enabled cameras, that
+   * have at least one recording available (allDates).
+   */
+  const allDates = new Set(
+    [].concat(
+      ...cameraViews
+        .filter((v) => v.enabled)
+        .map((v) => Array.from(v.camera.days.keys()))
+    )
+  );
+  return [
+    allDates,
+    ...Array.from(allDates.values()).reduce((acc, dateStr) => {
+      acc[0] = !acc[0] || dateStr < acc[0] ? dateStr : acc[0];
+      acc[1] = !acc[1] || dateStr > acc[1] ? dateStr : acc[1];
+      return acc;
+    }, []),
+  ];
+}
+
+/**
+ * Class to represent a calendar view.
+ *
+ * The view consists of:
+ * - Two date pickers (from and to)
+ * - A time input box with each date picker (from time, to time)
+ * - A set of radio buttons to select between same day or not
+ *
+ */
+export default class CalendarView {
+  /**
+   * Construct the view with UI elements IDs specified.
+   *
+   * @param  {String} options.fromPickerId     Id for from datepicker
+   * @param  {String} options.toPickerId       Id for to datepicker
+   * @param  {String} options.isSameDayId      Id for same day radio button
+   * @param  {String} options.isOtherDayId     Id for other day radio button
+   * @param  {String} options.fromPickerTimeId Id for from time field
+   * @param  {String} options.toPickerTimeId   Id for to time field
+   * @param  {[type]} options.timeZone         Timezone
+   */
+  constructor({
+    fromPickerId = 'start-date',
+    toPickerId = 'end-date',
+    isSameDayId = 'end-date-same',
+    isOtherDayId = 'end-date-other',
+    fromPickerTimeId = 'start-time',
+    toPickerTimeId = 'end-time',
+    timeZone = null,
+  } = {}) {
+    // Lookup all by id, check and remember
+    [
+      this._fromPickerView,
+      this._toPickerView,
+      this._sameDayElement,
+      this._otherDayElement,
+      this._startTimeElement,
+      this._endTimeElement,
+    ] = [
+      fromPickerId,
+      toPickerId,
+      isSameDayId,
+      isOtherDayId,
+      fromPickerTimeId,
+      toPickerTimeId,
+    ].map((id) => {
+      const el = $(`#${id}`);
+      if (el.length == 0) {
+        console.log('Warning: Calendar element with id "' + id + '" not found');
+      }
+      return el;
+    });
+    this._fromPickerView = new DatePickerView(this._fromPickerView);
+    this._toPickerView = new DatePickerView(this._toPickerView);
+    this._timeFormatter = new TimeStamp90kFormatter(timeZone);
+    this._timeParser = new Time90kParser(timeZone);
+    this._selectedRange = new CalendarTSRange(timeZone);
+    this._sameDay = true; // Start in single day view
+    this._sameDayElement.prop('checked', this._sameDay);
+    this._otherDayElement.prop('checked', !this._sameDay);
+    this._availableDates = null;
+    this._minDateStr = null;
+    this._maxDateStr = null;
+    this._singleDateStr = null;
+    this._cameraViews = null;
+    this._rangeChangedHandler = null;
+  }
+
+  /**
+   * Change timezone.
+   *
+   * @param  {String} tz New timezone
+   */
+  set tz(tz) {
+    this._timeParser.tz = tz;
+  }
+
+  /**
+   * (Re)configure the datepickers and other calendar range inputs to reflect
+   * available dates.
+   */
+  _configureDatePickers() {
+    const dateSet = this._availableDates;
+    const minDateStr = this._minDateStr;
+    const maxDateStr = this._maxDateStr;
+    const fromPickerView = this._fromPickerView;
+    const toPickerView = this._toPickerView;
+    const beforeShowDay = function(date) {
+      let dateStr = date.toISOString().substr(0, 10);
+      return [dateSet.has(dateStr), '', ''];
+    };
+
+    if (this._sameDay) {
+      fromPickerView.option({
+        dateFormat: $.datepicker.ISO_8601,
+        minDate: minDateStr,
+        maxDate: maxDateStr,
+        onSelect: (dateStr, picker) => this._updateRangeDates(dateStr, dateStr),
+        beforeShowDay: beforeShowDay,
+        disabled: false,
+      });
+      toPickerView.destroy();
+      toPickerView.activate(); // Default state, but alive
+    } else {
+      fromPickerView.option({
+        dateFormat: $.datepicker.ISO_8601,
+        minDate: minDateStr,
+        onSelect: (dateStr, picker) => {
+          toPickerView.option('minDate', this.fromDateISO);
+          this._updateRangeDates(dateStr, this.toDateISO);
+        },
+        beforeShowDay: beforeShowDay,
+        disabled: false,
+      });
+      toPickerView.option({
+        dateFormat: $.datepicker.ISO_8601,
+        minDate: fromPickerView.dateISO,
+        maxDate: maxDateStr,
+        onSelect: (dateStr, picker) => {
+          fromPickerView.option('maxDate', this.toDateISO);
+          this._updateRangeDates(this.fromDateISO, dateStr);
+        },
+        beforeShowDay: beforeShowDay,
+        disabled: false,
+      });
+      toPickerView.date = fromPickerView.date;
+      fromPickerView.maxDate = toPickerView.date;
+    }
+  }
+
+  /**
+   * Call an installed handler (if any) to inform that range has changed.
+   */
+  _informRangeChange() {
+    if (this._rangeChangedHandler !== null) {
+      this._rangeChangedHandler(this._selectedRange);
+    }
+  }
+
+  /**
+   * Handle a change in the time input of either from or to.
+   *
+   * The change requires updating the selected range and then informing
+   * any listeners that the range has changed (so they can update data).
+   *
+   * @param  {Object}  event Time Event on DOM that triggered calling this
+   * @param  {Boolean} isEnd      True if this is for end time
+   */
+  _pickerTimeChanged(event, isEnd) {
+    const pickerElement = event.currentTarget;
+    const newTimeStr = pickerElement.value;
+    const selectedRange = this._selectedRange;
+    const parsedTS = isEnd
+      ? selectedRange.setEndTime(newTimeStr)
+      : selectedRange.setStartTime(newTimeStr);
+    if (parsedTS === null) {
+      console.log('bad time change');
+      $(pickerElement).addClass('ui-state-error');
+      return;
+    }
+    $(pickerElement).removeClass('ui-state-error');
+    console.log(
+      (isEnd ? 'End' : 'Start') +
+        ' time changed to: ' +
+        parsedTS +
+        ' (' +
+        this._timeFormatter.formatTimeStamp90k(parsedTS) +
+        ')'
+    );
+    this._informRangeChange();
+  }
+
+  /**
+   * Handle a change in the calendar's same/other day settings.
+   *
+   * The change means the selected range changes.
+   *
+   * @param {Boolean} isSameDay True if the same day radio button was activated
+   */
+  _pickerSameDayChanged(isSameDay) {
+    // Prevent change if not real change (can happen on initial setup)
+    if (this._sameDay != isSameDay) {
+      /**
+       * This is called when the status of the same/other day radio buttons
+       * changes. We need to determine a new selected range and activiate it.
+       * Doing so will then also inform the change listener.
+       */
+      const endDate = isSameDay
+        ? this.selectedRange.start.dateStr
+        : this.selectedRange.end.dateStr;
+      this._updateRangeDates(this.selectedRange.start.dateStr, endDate);
+      this._sameDay = isSameDay;
+
+      // Switch between single day and multi-day
+      this._configureDatePickers();
+    }
+  }
+
+  /**
+   * Reflect a change in start and end date in the calendar view.
+   *
+   * The selected range is update, the view is reconfigured as necessary and
+   * any listeners are informed.
+   *
+   * @param  {String} startDateStr New starting date
+   * @param  {String} endDateStr   New ending date
+   */
+  _updateRangeDates(startDateStr, endDateStr) {
+    const newRange = this._selectedRange;
+    const originalStart = Object.assign({}, newRange.start);
+    const originalEnd = Object.assign({}, newRange.end);
+    newRange.setStartDate(startDateStr);
+    newRange.setEndDate(endDateStr);
+
+    const isSameRange = (a, b) => {
+      return (
+        a.dateStr == b.dateStr && a.timeStr == b.timeStr && a.ts90k == b.ts90k
+      );
+    };
+
+    // Do nothing if effectively no change
+    if (
+      !isSameRange(newRange.start, originalStart) ||
+      !isSameRange(newRange.end, originalEnd)
+    ) {
+      console.log('New range: ' + startDateStr + ' - ' + endDateStr);
+      this._informRangeChange();
+    }
+  }
+
+  /**
+   * Install event handlers for same/other day radio buttons and the
+   * time input boxes as both need to result in an update of the calendar
+   * view.
+   */
+  _wireControls() {
+    // If same day status changed, update the view
+    this._sameDayElement.change(() => this._pickerSameDayChanged(true));
+    this._otherDayElement.change(() => this._pickerSameDayChanged(false));
+
+    // Handle changing of a time input (either from or to)
+    const handler = (e, isEnd) => {
+      console.log('Time changed for: ' + (isEnd ? 'end' : 'start'));
+      this._pickerTimeChanged(e, isEnd);
+    };
+    this._startTimeElement.change((e) => handler(e, false));
+    this._endTimeElement.change((e) => handler(e, true));
+  }
+
+  /**
+   * (Re)Initialize the calendar based on a collection of camera views.
+   *
+   * This is necessary as the camera views ultimately define the limits on
+   * the date pickers.
+   *
+   * @param  {Iterable} cameraViews Collection of camera views
+   */
+  initializeWith(cameraViews) {
+    this._cameraViews = cameraViews;
+    [this._availableDates, this._minDateStr, this._maxDateStr] = minMaxDates(
+      cameraViews
+    );
+    this._configureDatePickers();
+
+    // Initialize the selected range to the from picker's date
+    // if we do not have a selected range yet
+    if (!this.selectedRange.hasStart()) {
+      const date = this.fromDateISO;
+      this._updateRangeDates(date, date);
+      this._wireControls();
+    }
+  }
+
+  /**
+   * Set a handler to be called when the calendar selection range changes.
+   *
+   * The handler will be called with one argument, an object of type
+   * CalendarTSRange reflecting the current calendar range. It will be called
+   * whenever that range changes.
+   *
+   * @param  {Function} handler Function that will be called
+   */
+  set onRangeChange(handler) {
+    this._rangeChangedHandler = handler;
+  }
+
+  /**
+   * Get the "to" selected date as Date object.
+   *
+   * @return {Date} Date value of the "to"date picker
+   */
+  get toDate() {
+    return this._toPickerView.date;
+  }
+
+  /**
+   * Get the "from" selected date as Date object.
+   *
+   * @return {Date} Date value of the "from"date picker
+   */
+  get fromDate() {
+    return this._fromPickerView.date;
+  }
+
+  /**
+   * Get the "to" selected date as the date component of an ISO-8601
+   * formatted string.
+   *
+   * @return {String} Date value (YYYY-MM-D) of the "to" date picker
+   */
+  get toDateISO() {
+    return this._toPickerView.dateISO;
+  }
+
+  /**
+   * Get the "from" selected date as the date component of an ISO-8601
+   * formatted string.
+   *
+   * @return {String} Date value (YYYY-MM-D) of the "from" date picker
+   */
+  get fromDateISO() {
+    return this._fromPickerView.dateISO;
+  }
+
+  /**
+   * Get the currently selected range in the calendar view.
+   *
+   * @return {CalendarTSRange} Range object
+   */
+  get selectedRange() {
+    return this._selectedRange;
+  }
+}
diff --git a/ui-src/lib/views/CameraView.js b/ui-src/lib/views/CameraView.js
new file mode 100644
index 0000000..9114328
--- /dev/null
+++ b/ui-src/lib/views/CameraView.js
@@ -0,0 +1,174 @@
+// vim: set et sw=2 ts=2:
+//
+// This file is part of Moonfire NVR, a security camera digital video recorder.
+// Copyright (C) 2018 Dolf Starreveld <dolf@starreveld.com>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// In addition, as a special exception, the copyright holders give
+// permission to link the code of portions of this program with the
+// OpenSSL library under certain conditions as described in each
+// individual source file, and distribute linked combinations including
+// the two.
+//
+// You must obey the GNU General Public License in all respects for all
+// of the code used other than OpenSSL. If you modify file(s) with this
+// exception, you may extend this exception to your version of the
+// file(s), but you are not obligated to do so. If you do not wish to do
+// so, delete this exception statement from your version. If you delete
+// this exception statement from all source files in the program, then
+// also delete it here.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import RecordingsView from './RecordingsView';
+
+/**
+ * Class handling a camer view.
+ *
+ * A camera view consists of a list of available recording segments for
+ * playback.
+ */
+export default class CameraView {
+  /**
+   * Construct the view.
+   *
+   * @param  {Camera} cameraModel        Model object for camera
+   * @param  {[type]} recordingFormatter Formatter to be used by recordings
+   * @param  {[type]} trimmed            True if rec. ranges should be trimmed
+   * @param  {[type]} recordingsParent   Parent element to attach to or null)
+   */
+  constructor(
+    cameraModel,
+    recordingFormatter,
+    trimmed,
+    recordingsParent = null
+  ) {
+    this.camera = cameraModel;
+    this.recordingsView = new RecordingsView(
+      this.camera,
+      recordingFormatter,
+      trimmed,
+      recordingsParent
+    );
+    this._enabled = true;
+    this.recordingsUrl = null;
+    this.recordingsReq = null;
+  }
+
+  /**
+   * Get whether the view is enabled or not.
+   *
+   * @return {Boolean}
+   */
+  get enabled() {
+    return this._enabled;
+  }
+
+  /**
+   * Change enabled state of the view.
+   *
+   * @param  {Boolean} enabled Whether view should be enabled
+   */
+  set enabled(enabled) {
+    this._enabled = enabled;
+    this.recordingsView.show = enabled;
+    console.log(
+      'Camera ',
+      this.camera.shortName,
+      this.enabled ? 'enabled' : 'disabled'
+    );
+  }
+
+  /**
+   * Get the currently remembered recordings range for this camera.
+   *
+   * This is just passed on to the recordings view.
+   *
+   * @return {Range90k} Currently remembered range
+   */
+  get recordingsRange() {
+    return this.recordingsView.recordingsRange;
+  }
+
+  /**
+   * Set the recordings range for this view.
+   *
+   * This is just passed on to the recordings view.
+   *
+   * @param  {Range90k} range90k Range to remember
+   */
+  set recordingsRange(range90k) {
+    this.recordingsView.recordingsRange = range90k;
+  }
+
+  /**
+   * Set whether loading indicator should be shown or not.
+   *
+   * This indicator is really on the recordings list.
+   *
+   * @param  {Boolean} show True if indicator should be showing
+   */
+  set showLoading(show) {
+    this.recordingsView.showLoading = show;
+  }
+
+  /**
+   * Show the loading indicated after a delay, unless the timer has been
+   * cleared already.
+   *
+   * @param  {Number} timeOutMs Delay (in ms) before indicator should appear
+   */
+  delayedShowLoading(timeOutMs) {
+    this.recordingsView.delayedShowLoading(timeOutMs);
+  }
+
+  /**
+   * Set new recordings from JSON data.
+   *
+   * @param  {Object} dataJSON JSON data (array)
+   */
+  set recordingsJSON(dataJSON) {
+    this.recordingsView.recordingsJSON = dataJSON;
+  }
+
+  /**
+   * Set a new time format string for the recordings list.
+   *
+   * @param  {String} formatStr Formatting string
+   */
+  set timeFormat(formatStr) {
+    this.recordingsView.timeFormat = formatStr;
+  }
+
+  /**
+   * Set the trimming option of the cameraview as desired.
+   *
+   * This is really just passed on to the recordings view.
+   *
+   * @param  {Boolean} enabled True if trimming should be enabled
+   */
+  set trimmed(enabled) {
+    this.recordingsView.trimmed = enabled;
+  }
+
+  /**
+   * Set a handler for clicks on a recording.
+   *
+   * The handler will be called with one argument, the recording model.
+   *
+   * @param  {Function} h Handler function
+   */
+  set onRecordingClicked(h) {
+    this.recordingsView.onRecordingClicked = h;
+  }
+}
diff --git a/ui-src/lib/views/CheckboxGroupView.js b/ui-src/lib/views/CheckboxGroupView.js
new file mode 100644
index 0000000..6044a2b
--- /dev/null
+++ b/ui-src/lib/views/CheckboxGroupView.js
@@ -0,0 +1,113 @@
+// vim: set et sw=2 ts=2:
+//
+// This file is part of Moonfire NVR, a security camera digital video recorder.
+// Copyright (C) 2018 Dolf Starreveld <dolf@starreveld.com>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// In addition, as a special exception, the copyright holders give
+// permission to link the code of portions of this program with the
+// OpenSSL library under certain conditions as described in each
+// individual source file, and distribute linked combinations including
+// the two.
+//
+// You must obey the GNU General Public License in all respects for all
+// of the code used other than OpenSSL. If you modify file(s) with this
+// exception, you may extend this exception to your version of the
+// file(s), but you are not obligated to do so. If you do not wish to do
+// so, delete this exception statement from your version. If you delete
+// this exception statement from all source files in the program, then
+// also delete it here.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import $ from 'jquery';
+
+/**
+ * Class to handle a group of (related) checkboxes.
+ *
+ * Each checkbox is managed through a simple object containing properties:
+ * - id: {String} Id (some unique value within the group)
+ * - selector: {String} jQuery compatible selector to find the dom element
+ * - checked: {Boolean} Value for checkbox
+ * - jq: {jQuery} jQuery element for the checkbox, or null if not found
+ *
+ * A handler can be called if a checbox changes value.
+ */
+export default class CheckboxGroupView {
+  /**
+   * Construct the seteup for the checkboxes.
+   *
+   * The passed group array should contain individual maps describing each
+   * checkbox. THe maps should contain:
+   * - id
+   * - selector: optional. If not provided #id will be used
+   * - checked: Initial value for checkbox, default true
+   * - text: Text for the checkbox label (not generated if empty)
+   *
+   * @param  {Array}  group Array of maps, one for each checkbox
+   * @param {jQuery} parent jQuery parent element to append to
+   */
+  constructor(group = [], parent = null) {
+    this._group = group.slice(); // Copy
+    this._group.forEach((element) => {
+      // If parent specified, create and append
+      if (parent) {
+        let cb = `<input type="checkbox" id="${element.id}" name="${
+          element.id
+        }">`;
+        if (element.text) {
+          cb += `<label for="${element.id}">${element.text}</label>`;
+        }
+        parent.append($(cb + '<br/>'));
+      }
+      const jq = $(element.selector || `#${element.id}`);
+      element.jq = jq;
+      if (jq !== null) {
+        jq.prop('checked', element.checked || true);
+        jq.change((e) => {
+          if (this._checkChangeHandler) {
+            element.checked = e.target.checked;
+            this._checkChangeHandler(element);
+          }
+        });
+      }
+    });
+    this._checkChangeHandler = null;
+  }
+
+  /**
+   * Get the checkbox object for the specified checkbox.
+   *
+   * The checkbox is looked up by the specified id or selector, which must
+   * match what was specified during construction.
+   *
+   * @param {String} idOrSelector Identifying string
+   * @return {Object} Object for checkbox, or null if not found
+   */
+  checkBox(idOrSelector) {
+    return this._group.find(
+      (el) => el.id === idOrSelector || el.selector === idOrSelector
+    );
+  }
+
+  /**
+   * Set a handler for checkbox changes.
+   *
+   * Handler will be called with same result as would be found by checkBox().
+   *
+   * @param  {Function} handler function (checbox)
+   */
+  set onCheckChange(handler) {
+    this._checkChangeHandler = handler;
+  }
+}
diff --git a/ui-src/lib/views/DatePickerView.js b/ui-src/lib/views/DatePickerView.js
new file mode 100644
index 0000000..a9e12b5
--- /dev/null
+++ b/ui-src/lib/views/DatePickerView.js
@@ -0,0 +1,283 @@
+// vim: set et sw=2 ts=2:
+//
+// This file is part of Moonfire NVR, a security camera digital video recorder.
+// Copyright (C) 2018 Dolf Starreveld <dolf@starreveld.com>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// In addition, as a special exception, the copyright holders give
+// permission to link the code of portions of this program with the
+// OpenSSL library under certain conditions as described in each
+// individual source file, and distribute linked combinations including
+// the two.
+//
+// You must obey the GNU General Public License in all respects for all
+// of the code used other than OpenSSL. If you modify file(s) with this
+// exception, you may extend this exception to your version of the
+// file(s), but you are not obligated to do so. If you do not wish to do
+// so, delete this exception statement from your version. If you delete
+// this exception statement from all source files in the program, then
+// also delete it here.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import $ from 'jquery';
+
+/**
+ * Class to encapsulate datepicker UI widget from jQuery.
+ */
+export default class DatePickerView {
+  /**
+   * Construct wapper an attach to a specified parent DOM node.
+   *
+   * @param  {Node} parent   Note to serve for attachign datepicker
+   * @param  {Object} options Options to pass to datepicker
+   */
+  constructor(parent, options = null) {
+    this._pickerElement = $(parent);
+    /*
+     * The widget is somewhat peculiar in that its functionality does
+     * not exist until it has been called with a settings/options argument
+     * as the only parameter to the datepicker() function.
+     * So, unless some are passed in here explicitly, we create a default
+     * and disabled date picker.
+     */
+    this._initWithOptions(options);
+  }
+
+  /**
+   * Initialize the date picker with a set of options.
+   *
+   * Attach the datepicker function to its parent and set the specified options.
+   * If the options are not specified a minimum set of options just enabling the
+   * datepicker with defaults is used.
+   *
+   * @param  {Object} options Options for datepicker, or null to just enable
+   */
+  _initWithOptions(options = null) {
+    this._alive = true;
+    options =
+      options !== null
+        ? options
+        : {
+            disabled: true,
+          };
+    this._pickerElement.datepicker(options);
+  }
+
+  /**
+   * Execute a specified datepicker function, passing the arguments.
+   *
+   * This function exists to catch the cases where functions are called when
+   * the picker is not attached (alive).
+   *
+   * The first argument to this function should be the name of the desired
+   * datepicker function, followed by the correct arguments for that function.
+   *
+   * @return {Any} Function result
+   */
+  _apply() {
+    if (!this._alive) {
+      console.log('WARN: datepicker not constructed yet [' + this.domId + ']');
+    }
+    return this._pickerElement.datepicker(...arguments);
+  }
+
+  /**
+   * Activate the datepicker if not already attached.
+   *
+   * Basically calls _initWithOptions({disabled: disabled}), but only if not
+   * already attached. Otherwise just sets the disabled status.
+   *
+   * @param  {Boolean} disabled True if datepicker needs to be disabled
+   */
+  activate(disabled = true) {
+    if (this._alive) {
+      this.disabled = disabled;
+    } else {
+      this._initWithOptions({
+        disabled: disabled,
+      });
+    }
+  }
+
+  /**
+   * Get the element the datepicker is attached to.
+   *
+   * @return {jQuery} jQuery element
+   */
+  get element() {
+    return this._pickerElement;
+  }
+
+  /**
+   * Set option or options to the datepicker, like the 'option' call with
+   * various arguments.
+   *
+   * Special case is when the datepicker is not (yet) attached. In that case
+   * we need to initialze the datepicker with the options instead.
+   *
+   * @param {object} arg0   First parameter or undefined if not given
+   * @param {array} args    Rest of the parameters (might be empty)
+   * @return {object}       Result of the 'option' call.
+   */
+  option(arg0, ...args) {
+    /*
+     * Special case the scenario of calling option setting with just a map of
+     * settings, when the picker is not alive. That really should translate
+     * to a constructor call to the datepicker.
+     */
+    if (!this._alive && args.length === 0 && typeof arg0 === 'object') {
+      return this._initWithOptions(arg0);
+    }
+    return this._apply('option', arg0, ...args);
+  }
+
+  /**
+   * Return current set of options.
+   *
+   * This is special cased here vs. documentation. We need to ask for 'all'.
+   *
+   * @return {Object} Datepicker options
+   */
+  options() {
+    return this.option('all');
+  }
+
+  /**
+   * Determine whether datepicker is disabled.
+   *
+   * @return {Boolean}
+   */
+  get isDisabled() {
+    return this._apply('isDisabled');
+  }
+
+  /**
+   * Set disabled status of picker.
+   *
+   * @param  {Boolean} disabled True to disable
+   */
+  set disabled(disabled) {
+    this.option('disabled', disabled);
+  }
+
+  /**
+   * Get picker's currently selected date.
+   *
+   * @return {Date} Selected date
+   */
+  get date() {
+    return this._apply('getDate');
+  }
+
+  /**
+   * Set the datepicker to a specific date.
+   *
+   * @param  {String|Date} date Desired date as string or Date
+   */
+  set date(date) {
+    this._apply('setDate', date);
+  }
+
+  /**
+   * Get the picker's current date in ISO format.
+   *
+   * This will return just the date portion of the ISO-8601 format, or in other
+   * words: YYYY-MM-DD
+   *
+   * @return {String} Date portion of ISO-8601 formatted selected date
+   */
+  get dateISO() {
+    return this.date.toISOString().substr(0, 10);
+  }
+
+  /**
+   * Get currently set minimum date.
+   *
+   * @return {Date} Minimum date
+   */
+  get minDate() {
+    return this.option('minDate');
+  }
+
+  /**
+   * Set a new minimum date.
+   *
+   * @param  {String|Date} value Desired minimum date
+   */
+  set minDate(value) {
+    this.option('minDate', value);
+  }
+
+  /**
+   * Get currently set maximum date.
+   *
+   * @return {Date} Maximum date
+   */
+  get maxDate() {
+    return this.option('maxDate');
+  }
+
+  /**
+   * Set a new maximum date.
+   *
+   * @param  {String|Date} value Desired maximum date
+   */
+  set maxDate(value) {
+    this.option('maxDate', value);
+  }
+
+  /**
+   * Set the picker to open up in a dialog.
+   *
+   * This takes a variable number of arguments, like the native dialog function.
+   *
+   * @param {varargs} dialogArgs Variable argument list
+   */
+  dialog(...dialogArgs) {
+    this._apply('option', dialogArgs);
+  }
+
+  /**
+   * Make the picker visible.
+   */
+  show() {
+    this._apply('show');
+  }
+
+  /**
+   * Hide the picker.
+   */
+  hide() {
+    this._apply('hide');
+  }
+
+  /**
+   * Refresh the picker.
+   */
+  refresh() {
+    this._apply('refresh');
+  }
+
+  /**
+   * Destroy the picker.
+   *
+   * Destroy means detach it from its element and dispose of everything.
+   * Sets the status in this object to !alive.
+   */
+  destroy() {
+    this._alive = true;
+    this._apply('destroy');
+    this._alive = false;
+  }
+}
diff --git a/ui-src/lib/views/NVRSettingsView.js b/ui-src/lib/views/NVRSettingsView.js
new file mode 100644
index 0000000..23b89dd
--- /dev/null
+++ b/ui-src/lib/views/NVRSettingsView.js
@@ -0,0 +1,205 @@
+// vim: set et sw=2 ts=2:
+//
+// This file is part of Moonfire NVR, a security camera digital video recorder.
+// Copyright (C) 2018 Dolf Starreveld <dolf@starreveld.com>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// In addition, as a special exception, the copyright holders give
+// permission to link the code of portions of this program with the
+// OpenSSL library under certain conditions as described in each
+// individual source file, and distribute linked combinations including
+// the two.
+//
+// You must obey the GNU General Public License in all respects for all
+// of the code used other than OpenSSL. If you modify file(s) with this
+// exception, you may extend this exception to your version of the
+// file(s), but you are not obligated to do so. If you do not wish to do
+// so, delete this exception statement from your version. If you delete
+// this exception statement from all source files in the program, then
+// also delete it here.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import $ from 'jquery';
+
+/**
+ * Class to control the view of NVR Settings.
+ *
+ * These  settings/controls include:
+ * - Max video length
+ * - Trim segment start/end
+ * - Time Format
+ */
+export default class NVRSettingsView {
+  /**
+   * Construct based on element ids
+   */
+  constructor({
+    videoLenId = 'split',
+    trimCheckId = 'trim',
+    tsTrackId = 'ts',
+    timeFmtId = 'timefmt',
+  } = {}) {
+    this._ids = {videoLenId, trimCheckId, tsTrackId, timeFmtId};
+    this._videoLength = null;
+    this._videoLengthHandler = null;
+    this._trim = null;
+    this._trimHandler = null;
+    this._timeFmtStr = null;
+    this._timeFmtHandler = null;
+    this._tsTrack = null;
+    this._tsTrackHandler = null;
+    this._wireControls();
+  }
+
+  /**
+   * Find selected option in <select> and return value, or first option's value.
+   *
+   * The first option's value is returned if no option is selected.
+   *
+   * @param  {jQuery} selectEl jQuery element for the <select>
+   * @return {String}          Value of the selected/first option
+   */
+  _findSelectedOrFirst(selectEl) {
+    let value = selectEl.find(':selected').val();
+    if (!value) {
+      value = selectEl.find('option:first-child').val();
+    }
+    return value;
+  }
+
+  /**
+   * Wire up all controls and handlers.
+   *
+   */
+  _wireControls() {
+    const videoLengthEl = $(`#${this._ids.videoLenId}`);
+    this._videoLength = this._findSelectedOrFirst(videoLengthEl);
+    videoLengthEl.change((e) => {
+      const newValueStr = e.currentTarget.value;
+      this._videoLength =
+        newValueStr == 'infinite' ? Infinity : Number(newValueStr);
+      if (this._videoLengthHandler) {
+        this._videoLengthHandler(this._videoLength);
+      }
+    });
+
+    const trimEl = $(`#${this._ids.trimCheckId}`);
+    this._trim = trimEl.is(':checked');
+    trimEl.change((e) => {
+      this._trim = e.currentTarget.checked;
+      if (this._trimHandler) {
+        this._trimHandler(this._trim);
+      }
+    });
+
+    const timeFmtEl = $(`#${this._ids.timeFmtId}`);
+    this._timeFmtStr = this._findSelectedOrFirst(timeFmtEl);
+    timeFmtEl.change((e) => {
+      this._timeFmtStr = e.target.value;
+      if (this._timeFmtHandler) {
+        this._timeFmtHandler(this._timeFmtStr);
+      }
+    });
+
+    const trackEl = $(`#${this._ids.tsTrackId}`);
+    this._tsTrack = trackEl.is(':checked');
+    trackEl.change((e) => {
+      this._tsTrack = e.target.checked;
+      if (this._tsTrackHandler) {
+        this._tsTrackHandler(this._tsTrack);
+      }
+    });
+  }
+
+  /**
+   * Get currently selected video length.
+   *
+   * @return {Number} Video length value
+   */
+  get videoLength() {
+    return this._videoLength;
+  }
+
+  /**
+   * Get currently selected time format string.
+   *
+   * @return {String} Format string
+   */
+  get timeFormatString() {
+    return this._timeFmtStr;
+  }
+
+  /**
+   * Get currently selected trim setting.
+   *
+   * @return {Boolean}
+   */
+  get trim() {
+    return this._trim;
+  }
+
+  /**
+   * Determine value of timestamp tracking option
+   *
+   * @return {Boolean}
+   */
+  get timeStampTrack() {
+    return this._tsTrack;
+  }
+
+  /**
+   * Set a handler to be called when the time format string changes.
+   *
+   * The handler will be called with one argument: the new format string.
+   *
+   * @param  {Function} handler Format change handler
+   */
+  set onTimeFormatChange(handler) {
+    this._timeFmtHandler = handler;
+  }
+
+  /**
+   * Set a handler to be called when video length popup changes.
+   *
+   * The handler will be called with one argument: the new video length.
+   *
+   * @param  {Function} handler Video Length change handler
+   */
+  set onVideoLengthChange(handler) {
+    this._videoLengthHandler = handler;
+  }
+
+  /**
+   * Set a handler to be called when video trim checkbox changes.
+   *
+   * The handler will be called with one argument: the new trim value (Boolean).
+   *
+   * @param  {Function} handler Trim change handler
+   */
+  set onTrimChange(handler) {
+    this._trimHandler = handler;
+  }
+
+  /**
+   * Set a handler to be called when video timestamp tracking checkbox changes.
+   *
+   * The handler will be called with one argument: the new tsTrack value
+   * (Boolean).
+   *
+   * @param  {Function} handler Timestamp track change handler
+   */
+  set onTimeStampTrackChange(handler) {
+    this._tsTrackHandler = handler;
+  }
+}
diff --git a/ui-src/lib/views/RecordingsView.js b/ui-src/lib/views/RecordingsView.js
new file mode 100644
index 0000000..b687d75
--- /dev/null
+++ b/ui-src/lib/views/RecordingsView.js
@@ -0,0 +1,283 @@
+// vim: set et sw=2 ts=2:
+//
+// This file is part of Moonfire NVR, a security camera digital video recorder.
+// Copyright (C) 2018 Dolf Starreveld <dolf@starreveld.com>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// In addition, as a special exception, the copyright holders give
+// permission to link the code of portions of this program with the
+// OpenSSL library under certain conditions as described in each
+// individual source file, and distribute linked combinations including
+// the two.
+//
+// You must obey the GNU General Public License in all respects for all
+// of the code used other than OpenSSL. If you modify file(s) with this
+// exception, you may extend this exception to your version of the
+// file(s), but you are not obligated to do so. If you do not wish to do
+// so, delete this exception statement from your version. If you delete
+// this exception statement from all source files in the program, then
+// also delete it here.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import $ from 'jquery';
+
+import Recording from '../models/Recording';
+
+/**
+ * Desired column order in recordings table.
+ *
+ * The column names must correspond to the propertu names in the JSON
+ * representation of recordings.
+ *
+ * @todo This should be decoupled!
+ *
+ * @type {Array} Array of column names
+ */
+const _columnOrder = [
+  'start',
+  'end',
+  'resolution',
+  'frameRate',
+  'size',
+  'rate',
+];
+
+/**
+ * Labels for columns.
+ */
+const _columnLabels = {
+  start: 'Start',
+  end: 'End',
+  resolution: 'Resolution',
+  frameRate: 'FPS',
+  size: 'Storage',
+  rate: 'BitRate',
+};
+
+/**
+ * Class to encapsulate a view of a list of recordings from a single camera.
+ */
+export default class RecordingsView {
+  /**
+   * Construct display from camera data and use supplied formatter.
+   *
+   * @param  {Camera} camera camera object (immutable)
+   * @param  {RecordingFormatter} recordingFormatter Desired formatter
+   * @param  {Boolean} trimmed True if the display should include trimmed ranges
+   * @param  {jQuery} parent Parent to which new DOM is attached, or null
+   */
+  constructor(camera, recordingFormatter, trimmed = false, parent = null) {
+    this._cameraName = camera.shortName;
+    this._cameraRange = camera.range90k;
+    this._formatter = recordingFormatter;
+    this._element = $(`tab-${camera.uuid}`); // Might not be there initially
+    if (this._element.length == 0) {
+      this._element = this._createElement(camera.uuid, camera.shortName);
+    }
+    this._trimmed = trimmed;
+    this._recordings = null;
+    this._recordingsRange = null;
+    this._clickHandler = null;
+    if (parent) {
+      parent.append(this._element);
+    }
+    this._timeoutId = null;
+  }
+
+  /**
+   * Create DOM for the recording.
+   *
+   * @param {String} id DOM id for the main element
+   * @param {String} cameraName Name of the corresponding camera
+   * @return {jQuery} Partial DOM as jQuery object
+   */
+  _createElement(id, cameraName) {
+    const tab = $('<tbody>').attr('id', id);
+    tab.append(
+      $('<tr class="name">').append($('<th colspan=6/>').text(cameraName)),
+      $('<tr class="hdr">').append(
+        $(
+          _columnOrder
+            .map((name) => '<th>' + _columnLabels[name] + '</th>')
+            .join('')
+        )
+      ),
+      $('</tr>'),
+      $('<tr class="loading"><td colspan=6>loading...</td></tr>').hide()
+    );
+    return tab;
+  }
+
+  /**
+   * Update display for new recording values.
+   *
+   * Each existing row is reformatted.
+   *
+   * @param  {Array} newRecordings
+   * @param  {Boolean} trimmed  True if timestamps should be trimmed
+   */
+  _updateRecordings() {
+    const trimRange = this._trimmed ? this.recordingsRange : null;
+    const recordings = this._recordings;
+    this._element.children('tr.r').each((rowIndex, row) => {
+      const values = this._formatter.format(recordings[rowIndex], trimRange);
+      $(row)
+        .children('td')
+        .each((index, element) => $(element).text(values[_columnOrder[index]]));
+    });
+  }
+
+  /**
+   * Get the currently remembered recordings range for this view.
+   *
+   * This range corresponds to what was in the data time range selector UI
+   * at the time the data for this view was selected. The value is remembered
+   * purely for trimming purposes.
+   *
+   * @return {Range90k} Currently remembered range
+   */
+  get recordingsRange() {
+    return this._recordingsRange ? this._recordingsRange.clone() : null;
+  }
+
+  /**
+   * Set the recordings range for this view.
+   *
+   * @param  {Range90k} range90k Range to remember
+   */
+  set recordingsRange(range90k) {
+    this._recordingsRange = range90k ? range90k.clone() : null;
+  }
+
+  /**
+   * Get whether time ranges in the recording list are being trimmed.
+   *
+   * @return {Boolean}
+   */
+  get trimmed() {
+    return this._trimmed;
+  }
+
+  /**
+   * Set whether recording time ranges should be trimmed.
+   *
+   * @param  {Boolean} value True if trimming desired
+   */
+  set trimmed(value) {
+    if (value != this._trimmed) {
+      this._trimmed = value;
+      this._updateRecordings();
+    }
+  }
+
+  /**
+   * Show or hide the display in the DOM.
+   *
+   * @param  {Boolean} show True for show, false for hide
+   */
+  set show(show) {
+    const sel = this._element;
+    if (show) {
+      sel.show();
+    } else {
+      sel.hide();
+    }
+  }
+
+  /**
+   * Set whether loading indicator should be shown or not.
+   *
+   * @param  {Boolean} show True if indicator should be showing
+   */
+  set showLoading(show) {
+    const loading = $('tr.loading', this._element);
+    if (show) {
+      loading.show();
+    } else {
+      if (this._timeoutId) {
+        clearTimeout(this._timeoutId);
+        this._timeoutId = null;
+      }
+      loading.hide();
+    }
+  }
+
+  /**
+   * Show the loading indicated after a delay, unless the timer has been
+   * cleared already.
+   *
+   * @param  {Number} timeOutMs Delay (in ms) before indicator should appear
+   */
+  delayedShowLoading(timeOutMs) {
+    this._timeoutId = setTimeout(() => (this.showLoading = true), timeOutMs);
+  }
+
+  /**
+   * Set a new time format string.
+   *
+   * This string is passed on to the formatter and the recordings list
+   * is updated (using the formatter).
+   *
+   * @param  {String} formatStr Formatting string
+   */
+  set timeFormat(formatStr) {
+    // Change the formatter and update recordings (view)
+    this._formatter.timeFormat = formatStr;
+    this._updateRecordings();
+  }
+
+  /**
+   * Set a handler to receive clicks on a recording.
+   *
+   * The handler will be called with one argument: a recording model.
+   *
+   * @param  {Function} h Handler to be called.
+   */
+  set onRecordingClicked(h) {
+    this._clickHandler = h;
+  }
+
+  /**
+   * Set the list of recordings from JSON data.
+   *
+   * The data is expected to be an array with recording objects.
+   *
+   * @param  {String} recordingsJSON JSON data (array)
+   */
+  set recordingsJSON(recordingsJSON) {
+    this.showLoading = false;
+    // Store as model objects
+    this._recordings = recordingsJSON.map(function(r) {
+      return new Recording(r);
+    });
+
+    const tbody = this._element;
+    // Remove existing rows, replace with new ones
+    $('tr.r', tbody).remove();
+    this._recordings.forEach((r) => {
+      let row = $('<tr class="r" />');
+      row.append(_columnOrder.map((k) => $('<td/>')));
+      row.on('click', (e) => {
+        console.log('Video clicked');
+        if (this._clickHandler !== null) {
+          console.log('Video clicked handler call');
+          this._clickHandler(r);
+        }
+      });
+      tbody.append(row);
+    });
+    // Cause formatting and date to be put in the rows
+    this._updateRecordings();
+  }
+}
diff --git a/webpack/NVRSettings.js b/webpack/NVRSettings.js
index 3cd908e..bb5ac65 100644
--- a/webpack/NVRSettings.js
+++ b/webpack/NVRSettings.js
@@ -1,5 +1,35 @@
-// vim: set et ts=2 sw=2:
+// vim: set et sw=2 ts=2:
 //
+// This file is part of Moonfire NVR, a security camera digital video recorder.
+// Copyright (C) 2018 Dolf Starreveld <dolf@starreveld.com>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// In addition, as a special exception, the copyright holders give
+// permission to link the code of portions of this program with the
+// OpenSSL library under certain conditions as described in each
+// individual source file, and distribute linked combinations including
+// the two.
+//
+// You must obey the GNU General Public License in all respects for all
+// of the code used other than OpenSSL. If you modify file(s) with this
+// exception, you may extend this exception to your version of the
+// file(s), but you are not obligated to do so. If you do not wish to do
+// so, delete this exception statement from your version. If you delete
+// this exception statement from all source files in the program, then
+// also delete it here.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
 const path = require('path');
 const Settings = require('./parts/Settings');
 
diff --git a/webpack/base.config.js b/webpack/base.config.js
index 14f67d5..e166acc 100644
--- a/webpack/base.config.js
+++ b/webpack/base.config.js
@@ -1,5 +1,34 @@
-// vim: set et ts=2 sw=2:
+// vim: set et sw=2 ts=2:
 //
+// This file is part of Moonfire NVR, a security camera digital video recorder.
+// Copyright (C) 2018 Dolf Starreveld <dolf@starreveld.com>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// In addition, as a special exception, the copyright holders give
+// permission to link the code of portions of this program with the
+// OpenSSL library under certain conditions as described in each
+// individual source file, and distribute linked combinations including
+// the two.
+//
+// You must obey the GNU General Public License in all respects for all
+// of the code used other than OpenSSL. If you modify file(s) with this
+// exception, you may extend this exception to your version of the
+// file(s), but you are not obligated to do so. If you do not wish to do
+// so, delete this exception statement from your version. If you delete
+// this exception statement from all source files in the program, then
+// also delete it here.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 const path = require('path');
 const webpack = require('webpack');
@@ -16,6 +45,7 @@ module.exports = (env, args) => {
     output: {
       filename: '[name].bundle.js',
       path: nvrSettings._paths.dist_dir,
+      publicPath: '/',
     },
     module: {
       rules: [{
@@ -25,7 +55,7 @@ module.exports = (env, args) => {
           'presets': ['env'],
         },
         exclude: /(node_modules|bower_components)/,
-        include: [ './ui-src'],
+        include: ['./ui-src'],
       }, {
         test: /\.png$/,
         use: ['file-loader'],
@@ -46,10 +76,14 @@ module.exports = (env, args) => {
       }],
     },
     plugins: [
+      new webpack.DefinePlugin({
+        'process.env.NODE_ENV': JSON.stringify(args.mode),
+      }),
       new webpack.IgnorePlugin(/\.\/locale$/),
       new HtmlWebpackPlugin({
         title: nvrSettings.app_title,
-        template: path.join(nvrSettings._paths.app_src_dir, 'index.html'),
+        filename: 'index.html',
+        template: path.join(nvrSettings._paths.app_src_dir, 'assets', 'index.html'),
       }),
       new webpack.NormalModuleReplacementPlugin(
         /node_modules\/moment\/moment\.js$/,
diff --git a/webpack/dev.config.js b/webpack/dev.config.js
index bd5b703..c6e4f8a 100644
--- a/webpack/dev.config.js
+++ b/webpack/dev.config.js
@@ -1,5 +1,34 @@
-// vim: set et ts=2 sw=2:
+// vim: set et sw=2 ts=2:
 //
+// This file is part of Moonfire NVR, a security camera digital video recorder.
+// Copyright (C) 2018 Dolf Starreveld <dolf@starreveld.com>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// In addition, as a special exception, the copyright holders give
+// permission to link the code of portions of this program with the
+// OpenSSL library under certain conditions as described in each
+// individual source file, and distribute linked combinations including
+// the two.
+//
+// You must obey the GNU General Public License in all respects for all
+// of the code used other than OpenSSL. If you modify file(s) with this
+// exception, you may extend this exception to your version of the
+// file(s), but you are not obligated to do so. If you do not wish to do
+// so, delete this exception statement from your version. If you delete
+// this exception statement from all source files in the program, then
+// also delete it here.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 const webpack = require('webpack');
 const NVRSettings = require('./NVRSettings');
@@ -14,6 +43,9 @@ module.exports = (env, args) => {
       warnings: true,
     },
     devtool: 'inline-source-map',
+    optimization: {
+      namedChunks: true,
+    },
     devServer: {
       contentBase: nvrSettings.app_src_dir,
       historyApiFallback: true,
@@ -26,9 +58,6 @@ module.exports = (env, args) => {
       },
     },
     plugins: [
-      new webpack.DefinePlugin({
-        'process.env.NODE_ENV': JSON.stringify('development'),
-      }),
       new webpack.HotModuleReplacementPlugin(),
     ],
   });
diff --git a/webpack/parts/Settings.js b/webpack/parts/Settings.js
index d71848e..766c134 100644
--- a/webpack/parts/Settings.js
+++ b/webpack/parts/Settings.js
@@ -1,5 +1,35 @@
-// vim: set et ts=2 sw=2:
+// vim: set et sw=2 ts=2:
 //
+// This file is part of Moonfire NVR, a security camera digital video recorder.
+// Copyright (C) 2018 Dolf Starreveld <dolf@starreveld.com>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// In addition, as a special exception, the copyright holders give
+// permission to link the code of portions of this program with the
+// OpenSSL library under certain conditions as described in each
+// individual source file, and distribute linked combinations including
+// the two.
+//
+// You must obey the GNU General Public License in all respects for all
+// of the code used other than OpenSSL. If you modify file(s) with this
+// exception, you may extend this exception to your version of the
+// file(s), but you are not obligated to do so. If you do not wish to do
+// so, delete this exception statement from your version. If you delete
+// this exception statement from all source files in the program, then
+// also delete it here.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
 const path = require('path');
 const merge = require('webpack-merge');
 
diff --git a/webpack/prod.config.js b/webpack/prod.config.js
index 91afa7d..1d00185 100644
--- a/webpack/prod.config.js
+++ b/webpack/prod.config.js
@@ -1,7 +1,37 @@
-// vim: set et ts=2 sw=2:
+// vim: set et sw=2 ts=2:
 //
+// This file is part of Moonfire NVR, a security camera digital video recorder.
+// Copyright (C) 2018 Dolf Starreveld <dolf@starreveld.com>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// In addition, as a special exception, the copyright holders give
+// permission to link the code of portions of this program with the
+// OpenSSL library under certain conditions as described in each
+// individual source file, and distribute linked combinations including
+// the two.
+//
+// You must obey the GNU General Public License in all respects for all
+// of the code used other than OpenSSL. If you modify file(s) with this
+// exception, you may extend this exception to your version of the
+// file(s), but you are not obligated to do so. If you do not wish to do
+// so, delete this exception statement from your version. If you delete
+// this exception statement from all source files in the program, then
+// also delete it here.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 const webpack = require('webpack');
+const CompressionPlugin = require('compression-webpack-plugin');
 const NVRSettings = require('./NVRSettings');
 const baseConfig = require('./base.config.js');
 
@@ -12,14 +42,34 @@ module.exports = (env, args) => {
   const nvrSettings = settingsObject.settings;
 
   return settingsObject.webpackMerge(baseConfig, {
+    //devtool: 'cheap-module-source-map',
+    module: {
+      rules: [{
+        test: /\.html$/,
+        loader: 'html-loader',
+        query: {
+          minimize: true,
+        },
+      }],
+    },
     optimization: {
+      minimize: true,
       splitChunks: {
+        minSize: 30000,
+        minChunks: 1,
+        maxAsyncRequests: 5,
+        maxInitialRequests: 3,
         cacheGroups: {
           default: {
             minChunks: 2,
             priority: -20,
           },
           commons: {
+            name: 'commons',
+            chunks: 'all',
+            minChunks: 2,
+          },
+          vendors: {
             test: /[\\/]node_modules[\\/]/,
             name: 'vendor',
             chunks: 'all',
@@ -29,12 +79,19 @@ module.exports = (env, args) => {
       },
     },
     plugins: [
-      new webpack.DefinePlugin({
-        'process.env.NODE_ENV': JSON.stringify('production'),
-      }),
       new CleanWebpackPlugin([nvrSettings.dist_dir], {
         root: nvrSettings._paths.project_root,
       }),
+      new CompressionPlugin({
+        asset: '[path].gz[query]',
+        algorithm: 'gzip',
+        test: /\.js$|\.css$|\.html$/,
+        threshold: 10240,
+        minRatio: 0.8,
+      }),
+      new webpack.NormalModuleReplacementPlugin(
+        /node_modules\/jquery\/dist\/jquery\.js$/,
+        './jquery.min.js'),
     ],
   });
 };
diff --git a/yarn.lock b/yarn.lock
index 4e80d73..4c0391f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -23,10 +23,28 @@ acorn-dynamic-import@^3.0.0:
   dependencies:
     acorn "^5.0.0"
 
+acorn-jsx@^3.0.0:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/acorn-jsx/-/acorn-jsx-3.0.1.tgz#afdf9488fb1ecefc8348f6fb22f464e32a58b36b"
+  dependencies:
+    acorn "^3.0.4"
+
+acorn@^3.0.4:
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-3.3.0.tgz#45e37fb39e8da3f25baee3ff5369e2bb5f22017a"
+
 acorn@^5.0.0:
   version "5.1.2"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.1.2.tgz#911cb53e036807cf0fa778dc5d370fbd864246d7"
 
+acorn@^5.5.0:
+  version "5.5.3"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.5.3.tgz#f473dd47e0277a08e28e9bec5aeeb04751f0b8c9"
+
+ajv-keywords@^2.1.0:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-2.1.1.tgz#617997fc5f60576894c435f940d819e135b80762"
+
 ajv-keywords@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-3.1.0.tgz#ac2b27939c543e95d2c06e7f7f5c27be4aa543be"
@@ -47,6 +65,15 @@ ajv@^5.0.0:
     json-schema-traverse "^0.3.0"
     json-stable-stringify "^1.0.1"
 
+ajv@^5.2.3, ajv@^5.3.0:
+  version "5.5.2"
+  resolved "https://registry.yarnpkg.com/ajv/-/ajv-5.5.2.tgz#73b5eeca3fab653e3d3f9422b341ad42205dc965"
+  dependencies:
+    co "^4.6.0"
+    fast-deep-equal "^1.0.0"
+    fast-json-stable-stringify "^2.0.0"
+    json-schema-traverse "^0.3.0"
+
 ajv@^6.1.0:
   version "6.2.1"
   resolved "https://registry.yarnpkg.com/ajv/-/ajv-6.2.1.tgz#28a6abc493a2abe0fb4c8507acaedb43fa550671"
@@ -232,6 +259,10 @@ ast-types@0.11.2:
   version "0.11.2"
   resolved "https://registry.yarnpkg.com/ast-types/-/ast-types-0.11.2.tgz#cc4e1d15a36b39979a1986fe1e91321cbfae7783"
 
+ast-types@0.9.6:
+  version "0.9.6"
+  resolved "https://registry.yarnpkg.com/ast-types/-/ast-types-0.9.6.tgz#102c9e9e9005d3e7e3829bf0c4fa24ee862ee9b9"
+
 async-each@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/async-each/-/async-each-1.0.1.tgz#19d386a1d9edc6e7c1c85d388aedbcc56d33602d"
@@ -273,7 +304,7 @@ aws4@^1.2.1:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/aws4/-/aws4-1.6.0.tgz#83ef5ca860b2b32e4a0deedee8c771b9db57471e"
 
-babel-code-frame@^6.26.0:
+babel-code-frame@^6.22.0, babel-code-frame@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-code-frame/-/babel-code-frame-6.26.0.tgz#63fd43f7dc1e3bb7ce35947db8fe369a3f58c74b"
   dependencies:
@@ -1303,7 +1334,7 @@ bytes@3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/bytes/-/bytes-3.0.0.tgz#d32815404d689699f85a4ea4fa8755dd13a96048"
 
-cacache@^10.0.1:
+cacache@^10.0.1, cacache@^10.0.4:
   version "10.0.4"
   resolved "https://registry.yarnpkg.com/cacache/-/cacache-10.0.4.tgz#6452367999eff9d4188aefd9a14e9d7c6a263460"
   dependencies:
@@ -1347,6 +1378,16 @@ cacheable-request@^2.1.1:
     normalize-url "2.0.1"
     responselike "1.0.2"
 
+caller-path@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/caller-path/-/caller-path-0.1.0.tgz#94085ef63581ecd3daa92444a8fe94e82577751f"
+  dependencies:
+    callsites "^0.2.0"
+
+callsites@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/callsites/-/callsites-0.2.0.tgz#afab96262910a7f33c19a5775825c69f34e350ca"
+
 camel-case@3.0.x:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/camel-case/-/camel-case-3.0.0.tgz#ca3c3688a4e9cf3a4cda777dc4dcbc713249cf73"
@@ -1461,6 +1502,10 @@ cipher-base@^1.0.0, cipher-base@^1.0.1, cipher-base@^1.0.3:
     inherits "^2.0.1"
     safe-buffer "^5.0.1"
 
+circular-json@^0.3.1:
+  version "0.3.3"
+  resolved "https://registry.yarnpkg.com/circular-json/-/circular-json-0.3.3.tgz#815c99ea84f6809529d2f45791bdf82711352d66"
+
 clap@^1.0.9:
   version "1.2.3"
   resolved "https://registry.yarnpkg.com/clap/-/clap-1.2.3.tgz#4f36745b32008492557f46412d66d50cb99bce51"
@@ -1666,6 +1711,16 @@ compressible@~2.0.13:
   dependencies:
     mime-db ">= 1.33.0 < 2"
 
+compression-webpack-plugin@^1.1.10:
+  version "1.1.10"
+  resolved "https://registry.yarnpkg.com/compression-webpack-plugin/-/compression-webpack-plugin-1.1.10.tgz#dbc2d2d65729a89f7b195668211d38ea0883df98"
+  dependencies:
+    cacache "^10.0.1"
+    find-cache-dir "^1.0.0"
+    neo-async "^2.5.0"
+    serialize-javascript "^1.4.0"
+    webpack-sources "^1.0.1"
+
 compression@^1.5.2:
   version "1.7.2"
   resolved "https://registry.yarnpkg.com/compression/-/compression-1.7.2.tgz#aaffbcd6aaf854b44ebb280353d5ad1651f59a69"
@@ -1682,7 +1737,7 @@ concat-map@0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"
 
-concat-stream@^1.4.7, concat-stream@^1.5.0:
+concat-stream@^1.4.7, concat-stream@^1.5.0, concat-stream@^1.6.0:
   version "1.6.1"
   resolved "https://registry.yarnpkg.com/concat-stream/-/concat-stream-1.6.1.tgz#261b8f518301f1d834e36342b9fea095d2620a26"
   dependencies:
@@ -1782,7 +1837,7 @@ create-hmac@^1.1.0, create-hmac@^1.1.2, create-hmac@^1.1.4:
     safe-buffer "^5.0.1"
     sha.js "^2.4.8"
 
-cross-spawn@^5.0.1:
+cross-spawn@^5.0.1, cross-spawn@^5.1.0:
   version "5.1.0"
   resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-5.1.0.tgz#e8bd0efee58fcff6f8f94510a0a554bbfa235449"
   dependencies:
@@ -1979,6 +2034,10 @@ deep-extend@^0.4.0, deep-extend@~0.4.0:
   version "0.4.2"
   resolved "https://registry.yarnpkg.com/deep-extend/-/deep-extend-0.4.2.tgz#48b699c27e334bf89f10892be432f6e4c7d34a7f"
 
+deep-is@~0.1.3:
+  version "0.1.3"
+  resolved "https://registry.yarnpkg.com/deep-is/-/deep-is-0.1.3.tgz#b369d6fb5dbc13eecf524f91b070feedc357cf34"
+
 define-properties@^1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/define-properties/-/define-properties-1.1.2.tgz#83a73f2fea569898fb737193c8f873caf6d45c94"
@@ -2009,6 +2068,18 @@ defined@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/defined/-/defined-1.0.0.tgz#c98d9bcef75674188e110969151199e39b1fa693"
 
+del@^2.0.2:
+  version "2.2.2"
+  resolved "https://registry.yarnpkg.com/del/-/del-2.2.2.tgz#c12c981d067846c84bcaf862cff930d907ffd1a8"
+  dependencies:
+    globby "^5.0.0"
+    is-path-cwd "^1.0.0"
+    is-path-in-cwd "^1.0.0"
+    object-assign "^4.0.1"
+    pify "^2.0.0"
+    pinkie-promise "^2.0.0"
+    rimraf "^2.2.8"
+
 del@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/del/-/del-3.0.0.tgz#53ecf699ffcbcb39637691ab13baf160819766e5"
@@ -2094,6 +2165,12 @@ dns-txt@^2.0.2:
   dependencies:
     buffer-indexof "^1.0.0"
 
+doctrine@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/doctrine/-/doctrine-2.1.0.tgz#5cd01fc101621b42c4cd7f5d1a66243716d3f39d"
+  dependencies:
+    esutils "^2.0.2"
+
 dom-converter@~0.1:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/dom-converter/-/dom-converter-0.1.4.tgz#a45ef5727b890c9bffe6d7c876e7b19cb0e17f3b"
@@ -2266,6 +2343,13 @@ es-to-primitive@^1.1.1:
     is-date-object "^1.0.1"
     is-symbol "^1.0.1"
 
+es6-templates@^0.2.3:
+  version "0.2.3"
+  resolved "https://registry.yarnpkg.com/es6-templates/-/es6-templates-0.2.3.tgz#5cb9ac9fb1ded6eb1239342b81d792bbb4078ee4"
+  dependencies:
+    recast "~0.11.12"
+    through "~2.3.6"
+
 escape-html@~1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/escape-html/-/escape-html-1.0.3.tgz#0258eae4d3d0c0974de1c169188ef0051d1d1988"
@@ -2274,6 +2358,10 @@ escape-string-regexp@^1.0.2, escape-string-regexp@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz#1b61c0562190a8dff6ae3bb2cf0200ca130b86d4"
 
+eslint-config-google@^0.9.1:
+  version "0.9.1"
+  resolved "https://registry.yarnpkg.com/eslint-config-google/-/eslint-config-google-0.9.1.tgz#83353c3dba05f72bb123169a4094f4ff120391eb"
+
 eslint-scope@^3.7.1:
   version "3.7.1"
   resolved "https://registry.yarnpkg.com/eslint-scope/-/eslint-scope-3.7.1.tgz#3d63c3edfda02e06e01a452ad88caacc7cdcb6e8"
@@ -2281,14 +2369,77 @@ eslint-scope@^3.7.1:
     esrecurse "^4.1.0"
     estraverse "^4.1.1"
 
+eslint-visitor-keys@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/eslint-visitor-keys/-/eslint-visitor-keys-1.0.0.tgz#3f3180fb2e291017716acb4c9d6d5b5c34a6a81d"
+
+eslint@^4.18.2:
+  version "4.18.2"
+  resolved "https://registry.yarnpkg.com/eslint/-/eslint-4.18.2.tgz#0f81267ad1012e7d2051e186a9004cc2267b8d45"
+  dependencies:
+    ajv "^5.3.0"
+    babel-code-frame "^6.22.0"
+    chalk "^2.1.0"
+    concat-stream "^1.6.0"
+    cross-spawn "^5.1.0"
+    debug "^3.1.0"
+    doctrine "^2.1.0"
+    eslint-scope "^3.7.1"
+    eslint-visitor-keys "^1.0.0"
+    espree "^3.5.2"
+    esquery "^1.0.0"
+    esutils "^2.0.2"
+    file-entry-cache "^2.0.0"
+    functional-red-black-tree "^1.0.1"
+    glob "^7.1.2"
+    globals "^11.0.1"
+    ignore "^3.3.3"
+    imurmurhash "^0.1.4"
+    inquirer "^3.0.6"
+    is-resolvable "^1.0.0"
+    js-yaml "^3.9.1"
+    json-stable-stringify-without-jsonify "^1.0.1"
+    levn "^0.3.0"
+    lodash "^4.17.4"
+    minimatch "^3.0.2"
+    mkdirp "^0.5.1"
+    natural-compare "^1.4.0"
+    optionator "^0.8.2"
+    path-is-inside "^1.0.2"
+    pluralize "^7.0.0"
+    progress "^2.0.0"
+    require-uncached "^1.0.3"
+    semver "^5.3.0"
+    strip-ansi "^4.0.0"
+    strip-json-comments "~2.0.1"
+    table "4.0.2"
+    text-table "~0.2.0"
+
+espree@^3.5.2:
+  version "3.5.4"
+  resolved "https://registry.yarnpkg.com/espree/-/espree-3.5.4.tgz#b0f447187c8a8bed944b815a660bddf5deb5d1a7"
+  dependencies:
+    acorn "^5.5.0"
+    acorn-jsx "^3.0.0"
+
 esprima@^2.6.0:
   version "2.7.3"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-2.7.3.tgz#96e3b70d5779f6ad49cd032673d1c312767ba581"
 
-esprima@~4.0.0:
+esprima@^4.0.0, esprima@~4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-4.0.0.tgz#4499eddcd1110e0b218bacf2fa7f7f59f55ca804"
 
+esprima@~3.1.0:
+  version "3.1.3"
+  resolved "https://registry.yarnpkg.com/esprima/-/esprima-3.1.3.tgz#fdca51cee6133895e3c88d535ce49dbff62a4633"
+
+esquery@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/esquery/-/esquery-1.0.0.tgz#cfba8b57d7fba93f17298a8a006a04cda13d80fa"
+  dependencies:
+    estraverse "^4.0.0"
+
 esrecurse@^4.1.0:
   version "4.2.0"
   resolved "https://registry.yarnpkg.com/esrecurse/-/esrecurse-4.2.0.tgz#fa9568d98d3823f9a41d91e902dcab9ea6e5b163"
@@ -2296,7 +2447,7 @@ esrecurse@^4.1.0:
     estraverse "^4.1.0"
     object-assign "^4.0.1"
 
-estraverse@^4.1.0, estraverse@^4.1.1:
+estraverse@^4.0.0, estraverse@^4.1.0, estraverse@^4.1.1:
   version "4.2.0"
   resolved "https://registry.yarnpkg.com/estraverse/-/estraverse-4.2.0.tgz#0dee3fed31fcd469618ce7342099fc1afa0bdb13"
 
@@ -2474,6 +2625,10 @@ fast-json-stable-stringify@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/fast-json-stable-stringify/-/fast-json-stable-stringify-2.0.0.tgz#d5142c0caee6b1189f87d3a76111064f86c8bbf2"
 
+fast-levenshtein@~2.0.4:
+  version "2.0.6"
+  resolved "https://registry.yarnpkg.com/fast-levenshtein/-/fast-levenshtein-2.0.6.tgz#3d8a5c66883a16a30ca8643e851f19baa7797917"
+
 fastparse@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/fastparse/-/fastparse-1.1.1.tgz#d1e2643b38a94d7583b479060e6c4affc94071f8"
@@ -2503,6 +2658,13 @@ figures@^2.0.0:
   dependencies:
     escape-string-regexp "^1.0.5"
 
+file-entry-cache@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/file-entry-cache/-/file-entry-cache-2.0.0.tgz#c392990c3e684783d838b8c84a45d8a048458361"
+  dependencies:
+    flat-cache "^1.2.1"
+    object-assign "^4.0.1"
+
 file-loader@^1.1.11:
   version "1.1.11"
   resolved "https://registry.yarnpkg.com/file-loader/-/file-loader-1.1.11.tgz#6fe886449b0f2a936e43cabaac0cdbfb369506f8"
@@ -2572,6 +2734,15 @@ first-chunk-stream@^2.0.0:
   dependencies:
     readable-stream "^2.0.2"
 
+flat-cache@^1.2.1:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/flat-cache/-/flat-cache-1.3.0.tgz#d3030b32b38154f4e3b7e9c709f490f7ef97c481"
+  dependencies:
+    circular-json "^0.3.1"
+    del "^2.0.2"
+    graceful-fs "^4.1.2"
+    write "^0.2.1"
+
 flatten@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/flatten/-/flatten-1.0.2.tgz#dae46a9d78fbe25292258cc1e780a41d95c03782"
@@ -2675,6 +2846,10 @@ function-bind@^1.0.2, function-bind@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/function-bind/-/function-bind-1.1.1.tgz#a56899d3ea3c9bab874bb9773b7c5ede92f4895d"
 
+functional-red-black-tree@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/functional-red-black-tree/-/functional-red-black-tree-1.0.1.tgz#1b0ab3bd553b2a0d6399d29c0e3ea0b252078327"
+
 gauge@~2.7.3:
   version "2.7.4"
   resolved "https://registry.yarnpkg.com/gauge/-/gauge-2.7.4.tgz#2c03405c7538c39d7eb37b317022e325fb018bf7"
@@ -2796,6 +2971,10 @@ global@^4.3.2:
     min-document "^2.19.0"
     process "~0.5.1"
 
+globals@^11.0.1:
+  version "11.3.0"
+  resolved "https://registry.yarnpkg.com/globals/-/globals-11.3.0.tgz#e04fdb7b9796d8adac9c8f64c14837b2313378b0"
+
 globals@^9.18.0:
   version "9.18.0"
   resolved "https://registry.yarnpkg.com/globals/-/globals-9.18.0.tgz#aa3896b3e69b487f17e31ed2143d69a8e30c2d8a"
@@ -2811,6 +2990,17 @@ globby@^4.0.0:
     pify "^2.0.0"
     pinkie-promise "^2.0.0"
 
+globby@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/globby/-/globby-5.0.0.tgz#ebd84667ca0dbb330b99bcfc68eac2bc54370e0d"
+  dependencies:
+    array-union "^1.0.1"
+    arrify "^1.0.0"
+    glob "^7.0.3"
+    object-assign "^4.0.1"
+    pify "^2.0.0"
+    pinkie-promise "^2.0.0"
+
 globby@^6.1.0:
   version "6.1.0"
   resolved "https://registry.yarnpkg.com/globby/-/globby-6.1.0.tgz#f5a6d70e8395e21c858fb0489d64df02424d506c"
@@ -3035,7 +3225,17 @@ html-entities@^1.2.0:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/html-entities/-/html-entities-1.2.1.tgz#0df29351f0721163515dfb9e5543e5f6eed5162f"
 
-html-minifier@^3.2.3:
+html-loader@^0.5.5:
+  version "0.5.5"
+  resolved "https://registry.yarnpkg.com/html-loader/-/html-loader-0.5.5.tgz#6356dbeb0c49756d8ebd5ca327f16ff06ab5faea"
+  dependencies:
+    es6-templates "^0.2.3"
+    fastparse "^1.1.1"
+    html-minifier "^3.5.8"
+    loader-utils "^1.1.0"
+    object-assign "^4.1.1"
+
+html-minifier@^3.2.3, html-minifier@^3.5.8:
   version "3.5.10"
   resolved "https://registry.yarnpkg.com/html-minifier/-/html-minifier-3.5.10.tgz#8522c772c388db81aa5c26f62033302d906ea1c7"
   dependencies:
@@ -3140,6 +3340,10 @@ iferr@^0.1.5:
   version "0.1.5"
   resolved "https://registry.yarnpkg.com/iferr/-/iferr-0.1.5.tgz#c60eed69e6d8fdb6b3104a1fcbca1c192dc5b501"
 
+ignore@^3.3.3:
+  version "3.3.7"
+  resolved "https://registry.yarnpkg.com/ignore/-/ignore-3.3.7.tgz#612289bfb3c220e186a58118618d5be8c1bab021"
+
 import-local@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/import-local/-/import-local-1.0.0.tgz#5e4ffdc03f4fe6c009c6729beb29631c2f8227bc"
@@ -3211,7 +3415,7 @@ inquirer@^1.0.2:
     strip-ansi "^3.0.0"
     through "^2.3.6"
 
-inquirer@^3.3.0:
+inquirer@^3.0.6, inquirer@^3.3.0:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/inquirer/-/inquirer-3.3.0.tgz#9dd2f2ad765dcab1ff0443b491442a20ba227dc9"
   dependencies:
@@ -3497,6 +3701,10 @@ is-regex@^1.0.4:
   dependencies:
     has "^1.0.1"
 
+is-resolvable@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/is-resolvable/-/is-resolvable-1.1.0.tgz#fb18f87ce1feb925169c9a407c19318a3206ed88"
+
 is-retry-allowed@^1.0.0, is-retry-allowed@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/is-retry-allowed/-/is-retry-allowed-1.1.0.tgz#11a060568b67339444033d0125a61a20d564fb34"
@@ -3594,6 +3802,13 @@ js-tokens@^3.0.0, js-tokens@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.2.tgz#9866df395102130e38f7f996bceb65443209c25b"
 
+js-yaml@^3.9.1:
+  version "3.11.0"
+  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.11.0.tgz#597c1a8bd57152f26d622ce4117851a51f5ebaef"
+  dependencies:
+    argparse "^1.0.7"
+    esprima "^4.0.0"
+
 js-yaml@~3.7.0:
   version "3.7.0"
   resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.7.0.tgz#5c967ddd837a9bfdca5f2de84253abe8a1c03b80"
@@ -3645,6 +3860,10 @@ json-schema@0.2.3:
   version "0.2.3"
   resolved "https://registry.yarnpkg.com/json-schema/-/json-schema-0.2.3.tgz#b480c892e59a2f05954ce727bd3f2a4e882f9e13"
 
+json-stable-stringify-without-jsonify@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/json-stable-stringify-without-jsonify/-/json-stable-stringify-without-jsonify-1.0.1.tgz#9db7b59496ad3f3cfef30a75142d2d930ad72651"
+
 json-stable-stringify@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/json-stable-stringify/-/json-stable-stringify-1.0.1.tgz#9a759d39c5f2ff503fd5300646ed445f88c4f9af"
@@ -3718,6 +3937,13 @@ lcid@^1.0.0:
   dependencies:
     invert-kv "^1.0.0"
 
+levn@^0.3.0, levn@~0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/levn/-/levn-0.3.0.tgz#3b09924edf9f083c0490fdd4c0bc4421e04764ee"
+  dependencies:
+    prelude-ls "~1.1.2"
+    type-check "~0.3.2"
+
 listr-silent-renderer@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/listr-silent-renderer/-/listr-silent-renderer-1.1.1.tgz#924b5a3757153770bf1a8e3fbf74b8bbf3f9242e"
@@ -4207,6 +4433,10 @@ nanomatch@^1.2.9:
     snapdragon "^0.8.1"
     to-regex "^3.0.1"
 
+natural-compare@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/natural-compare/-/natural-compare-1.4.0.tgz#4abebfeed7541f2c27acfb29bdbbd15c8d5ba4f7"
+
 ncname@1.0.x:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/ncname/-/ncname-1.0.0.tgz#5b57ad18b1ca092864ef62b0b1ed8194f383b71c"
@@ -4443,6 +4673,17 @@ opn@^5.1.0:
   dependencies:
     is-wsl "^1.1.0"
 
+optionator@^0.8.2:
+  version "0.8.2"
+  resolved "https://registry.yarnpkg.com/optionator/-/optionator-0.8.2.tgz#364c5e409d3f4d6301d6c0b4c05bba50180aeb64"
+  dependencies:
+    deep-is "~0.1.3"
+    fast-levenshtein "~2.0.4"
+    levn "~0.3.0"
+    prelude-ls "~1.1.2"
+    type-check "~0.3.2"
+    wordwrap "~1.0.0"
+
 ora@^0.2.3:
   version "0.2.3"
   resolved "https://registry.yarnpkg.com/ora/-/ora-0.2.3.tgz#37527d220adcd53c39b73571d754156d5db657a4"
@@ -4618,7 +4859,7 @@ path-is-absolute@^1.0.0, path-is-absolute@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/path-is-absolute/-/path-is-absolute-1.0.1.tgz#174b9268735534ffbc7ace6bf53a5a9e1b5c5f5f"
 
-path-is-inside@^1.0.1:
+path-is-inside@^1.0.1, path-is-inside@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/path-is-inside/-/path-is-inside-1.0.2.tgz#365417dede44430d1c11af61027facf074bdfc53"
 
@@ -4686,6 +4927,10 @@ pkg-dir@^2.0.0:
   dependencies:
     find-up "^2.1.0"
 
+pluralize@^7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/pluralize/-/pluralize-7.0.0.tgz#298b89df8b93b0221dbf421ad2b1b1ea23fc6777"
+
 portfinder@^1.0.9:
   version "1.0.13"
   resolved "https://registry.yarnpkg.com/portfinder/-/portfinder-1.0.13.tgz#bb32ecd87c27104ae6ee44b5a3ccbf0ebb1aede9"
@@ -4944,6 +5189,10 @@ postcss@^6.0.1:
     source-map "^0.6.1"
     supports-color "^5.2.0"
 
+prelude-ls@~1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
+
 prepend-http@^1.0.0, prepend-http@^1.0.1:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/prepend-http/-/prepend-http-1.0.4.tgz#d4f4562b0ce3696e41ac52d0e002e57a635dc6dc"
@@ -4956,7 +5205,7 @@ preserve@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/preserve/-/preserve-0.2.0.tgz#815ed1f6ebc65926f865b310c0713bcb3315ce4b"
 
-prettier@^1.5.3:
+prettier@1.11.1, prettier@^1.5.3:
   version "1.11.1"
   resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.11.1.tgz#61e43fc4cd44e68f2b0dfc2c38cd4bb0fccdcc75"
 
@@ -4991,6 +5240,10 @@ process@~0.5.1:
   version "0.5.2"
   resolved "https://registry.yarnpkg.com/process/-/process-0.5.2.tgz#1638d8a8e34c2f440a91db95ab9aeb677fc185cf"
 
+progress@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/progress/-/progress-2.0.0.tgz#8a1be366bf8fc23db2bd23f10c6fe920b4389d1f"
+
 promise-inflight@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/promise-inflight/-/promise-inflight-1.0.1.tgz#98472870bf228132fcbdd868129bad12c3c029e3"
@@ -5223,6 +5476,15 @@ recast@^0.14.4:
     private "~0.1.5"
     source-map "~0.6.1"
 
+recast@~0.11.12:
+  version "0.11.23"
+  resolved "https://registry.yarnpkg.com/recast/-/recast-0.11.23.tgz#451fd3004ab1e4df9b4e4b66376b2a21912462d3"
+  dependencies:
+    ast-types "0.9.6"
+    esprima "~3.1.0"
+    private "~0.1.5"
+    source-map "~0.5.0"
+
 rechoir@^0.6.2:
   version "0.6.2"
   resolved "https://registry.yarnpkg.com/rechoir/-/rechoir-0.6.2.tgz#85204b54dba82d5742e28c96756ef43af50e3384"
@@ -5380,6 +5642,13 @@ require-main-filename@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/require-main-filename/-/require-main-filename-1.0.1.tgz#97f717b69d48784f5f526a6c5aa8ffdda055a4d1"
 
+require-uncached@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/require-uncached/-/require-uncached-1.0.3.tgz#4e0d56d6c9662fd31e43011c4b95aa49955421d3"
+  dependencies:
+    caller-path "^0.1.0"
+    resolve-from "^1.0.0"
+
 requires-port@1.0.x, requires-port@1.x.x, requires-port@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/requires-port/-/requires-port-1.0.0.tgz#925d2601d39ac485e091cf0da5c6e694dc3dcaff"
@@ -5397,6 +5666,10 @@ resolve-dir@^1.0.0:
     expand-tilde "^2.0.0"
     global-modules "^1.0.0"
 
+resolve-from@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-1.0.1.tgz#26cbfe935d1aeeeabb29bc3fe5aeb01e93d44226"
+
 resolve-from@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-3.0.0.tgz#b22c7af7d9d6881bc8b6e653335eebcb0a188748"
@@ -5657,6 +5930,12 @@ slice-ansi@0.0.4:
   version "0.0.4"
   resolved "https://registry.yarnpkg.com/slice-ansi/-/slice-ansi-0.0.4.tgz#edbf8903f66f7ce2f8eafd6ceed65e264c831b35"
 
+slice-ansi@1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/slice-ansi/-/slice-ansi-1.0.0.tgz#044f1a49d8842ff307aad6b505ed178bd950134d"
+  dependencies:
+    is-fullwidth-code-point "^2.0.0"
+
 slide@^1.1.5:
   version "1.1.6"
   resolved "https://registry.yarnpkg.com/slide/-/slide-1.1.6.tgz#56eb027d65b4d2dce6cb2e2d32c4d4afc9e1d707"
@@ -5748,7 +6027,7 @@ source-map-url@^0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/source-map-url/-/source-map-url-0.4.0.tgz#3e935d7ddd73631b97659956d55128e87b5084a3"
 
-source-map@0.5.x, source-map@^0.5.3, source-map@^0.5.6, source-map@~0.5.3:
+source-map@0.5.x, source-map@^0.5.3, source-map@^0.5.6, source-map@~0.5.0, source-map@~0.5.3:
   version "0.5.7"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.7.tgz#8a039d2d1021d22d1ea14c80d8ea468ba2ef3fcc"
 
@@ -5895,7 +6174,7 @@ string-width@^1.0.1, string-width@^1.0.2:
     is-fullwidth-code-point "^1.0.0"
     strip-ansi "^3.0.0"
 
-string-width@^2.0.0, string-width@^2.1.0:
+string-width@^2.0.0, string-width@^2.1.0, string-width@^2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/string-width/-/string-width-2.1.1.tgz#ab93f27a8dc13d28cac815c462143a6d9012ae9e"
   dependencies:
@@ -6012,6 +6291,17 @@ symbol-observable@^0.2.2:
   version "0.2.4"
   resolved "https://registry.yarnpkg.com/symbol-observable/-/symbol-observable-0.2.4.tgz#95a83db26186d6af7e7a18dbd9760a2f86d08f40"
 
+table@4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/table/-/table-4.0.2.tgz#a33447375391e766ad34d3486e6e2aedc84d2e36"
+  dependencies:
+    ajv "^5.2.3"
+    ajv-keywords "^2.1.0"
+    chalk "^2.1.0"
+    lodash "^4.17.4"
+    slice-ansi "1.0.0"
+    string-width "^2.1.1"
+
 tapable@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/tapable/-/tapable-1.0.0.tgz#cbb639d9002eed9c6b5975eb20598d7936f1f9f2"
@@ -6044,7 +6334,7 @@ temp@^0.8.1:
     os-tmpdir "^1.0.0"
     rimraf "~2.2.6"
 
-text-table@^0.2.0:
+text-table@^0.2.0, text-table@~0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/text-table/-/text-table-0.2.0.tgz#7f5ee823ae805207c00af2df4a84ec3fcfa570b4"
 
@@ -6059,7 +6349,7 @@ through2@^2.0.0, through2@^2.0.1:
     readable-stream "^2.1.5"
     xtend "~4.0.1"
 
-through@^2.3.6:
+through@^2.3.6, through@~2.3.6:
   version "2.3.8"
   resolved "https://registry.yarnpkg.com/through/-/through-2.3.8.tgz#0dd4c9ffaabc357960b1b724115d7e0e86a2e1f5"
 
@@ -6151,6 +6441,12 @@ tweetnacl@^0.14.3, tweetnacl@~0.14.0:
   version "0.14.5"
   resolved "https://registry.yarnpkg.com/tweetnacl/-/tweetnacl-0.14.5.tgz#5ae68177f192d4456269d108afa93ff8743f4f64"
 
+type-check@~0.3.2:
+  version "0.3.2"
+  resolved "https://registry.yarnpkg.com/type-check/-/type-check-0.3.2.tgz#5884cab512cf1d355e3fb784f30804b2b520db72"
+  dependencies:
+    prelude-ls "~1.1.2"
+
 type-is@~1.6.15:
   version "1.6.16"
   resolved "https://registry.yarnpkg.com/type-is/-/type-is-1.6.16.tgz#f89ce341541c672b25ee7ae3c73dee3b2be50194"
@@ -6189,6 +6485,19 @@ uglifyjs-webpack-plugin@^1.1.1, uglifyjs-webpack-plugin@^1.2.2:
     webpack-sources "^1.1.0"
     worker-farm "^1.5.2"
 
+uglifyjs-webpack-plugin@^1.2.3:
+  version "1.2.3"
+  resolved "https://registry.yarnpkg.com/uglifyjs-webpack-plugin/-/uglifyjs-webpack-plugin-1.2.3.tgz#bf23197b37a8fc953fecfbcbab66e506f9a0ae72"
+  dependencies:
+    cacache "^10.0.4"
+    find-cache-dir "^1.0.0"
+    schema-utils "^0.4.5"
+    serialize-javascript "^1.4.0"
+    source-map "^0.6.1"
+    uglify-es "^3.3.4"
+    webpack-sources "^1.1.0"
+    worker-farm "^1.5.2"
+
 uid-number@^0.0.6:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/uid-number/-/uid-number-0.0.6.tgz#0ea10e8035e8eb5b8e4449f06da1c730663baa81"
@@ -6601,6 +6910,10 @@ wide-align@^1.1.0:
   dependencies:
     string-width "^1.0.2"
 
+wordwrap@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-1.0.0.tgz#27584810891456a4171c8d0226441ade90cbcaeb"
+
 worker-farm@^1.5.2:
   version "1.5.4"
   resolved "https://registry.yarnpkg.com/worker-farm/-/worker-farm-1.5.4.tgz#4debbe46b40edefcc717ebde74a90b1ae1e909a1"
@@ -6627,6 +6940,12 @@ write-file-atomic@^1.2.0:
     imurmurhash "^0.1.4"
     slide "^1.1.5"
 
+write@^0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/write/-/write-0.2.1.tgz#5fc03828e264cea3fe91455476f7a3c566cb0757"
+  dependencies:
+    mkdirp "^0.5.1"
+
 xml-char-classes@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/xml-char-classes/-/xml-char-classes-1.0.0.tgz#64657848a20ffc5df583a42ad8a277b4512bbc4d"