/*
Copyright 2020 Intel Corporation

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

var msh = {};
var s = null;
try { s = require('service-manager').manager.getService('meshagent'); } catch (e) { }

function _install()
{
    var mstr = require('fs').createWriteStream(process.execPath + '.msh', { flags: 'wb' });
    mstr.write('MeshName=' + msh.MeshName + '\n');
    mstr.write('MeshType=' + msh.MeshType + '\n');
    mstr.write('MeshID=' + msh.MeshID + '\n');
    mstr.write('ServerID=' + msh.ServerID + '\n');
    mstr.write('MeshServer=' + msh.MeshServer + '\n');
    mstr.end();

    global._child = require('child_process').execFile(process.execPath,
        [process.execPath.split('/').pop(), '-fullinstall', '--no-embedded=1', '--copy-msh=1']);

    global._child.stdout.on('data', function (c) { process.stdout.write(c.toString()); });
    global._child.stderr.on('data', function (c) { process.stdout.write(c.toString()); });
    global._child.waitExit();
}
function _uninstall()
{
    global._child = require('child_process').execFile(process.execPath,
        [process.execPath.split('/').pop(), '-fulluninstall', '--no-embedded=1']);

    global._child.stdout.on('data', function (c) { process.stdout.write(c.toString()); });
    global._child.stderr.on('data', function (c) { process.stdout.write(c.toString()); });
    global._child.waitExit();
}

var s = null;
try { s = require('service-manager').manager.getService('meshagent'); } catch (e) { }
var buttons = ['Cancel'];

if (msh.InstallFlags == null)
{
    msh.InstallFlags = 3;
}
else
{
    msh.InstallFlags = parseInt(msh.InstallFlags.toString());
}


if ((msh.InstallFlags & 1) == 1) { buttons.unshift("Connect"); }
if ((msh.InstallFlags & 2) == 2)
{
    if (!require('user-sessions').isRoot())
    {
        console.log('\n' + "Elevated permissions is required to install/uninstall the agent.");
        console.log("Please try again with sudo.");
        process.exit();
    }
    if (s)
    {
        if (process.platform == 'darwin' || require('message-box').kdialog)
        {
            buttons.unshift("Setup");
        }
        else
        {
            buttons.unshift("Uninstall");
            buttons.unshift("Update");
        }
    }
    else
    {
        buttons.unshift("Install");
    }
}

if (process.platform != 'darwin')
{
    if (!require('message-box').kdialog && (require('message-box').zenity == null || (!require('message-box').zenity.extra)))
    {
        console.log('\n' + "This installer cannot run on this system.");
        console.log("Try installing/updating Zenity, and run again." + '\n');
        process.exit();
    }
}
else
{
    if (!require('user-sessions').isRoot()) { console.log('\n' + "This utility requires elevated permissions. Please try again with sudo."); process.exit(); }
}

if (!s)
{
    msg = "Agent: " + "NOT INSTALLED" + '\n';
} else
{
    msg = "Agent: " + (s.isRunning() ? "RUNNING" : "NOT RUNNING") + '\n';
}

msg += ("Device Group: " + msh.MeshName + '\n');
msg += ("Server URL: " + msh.MeshServer + '\n');

var p = require('message-box').create("MeshCentral Agent Setup", msg, 99999, buttons);
p.then(function (v)
{
    switch (v)
    {
        case "Cancel":
            process.exit();
            break;
        case "Setup":
            var d = require('message-box').create("MeshCentral Agent", msg, 99999, ["Update", "Uninstall", "Cancel"]);
            d.then(function (v)
            {
                switch (v)
                {
                    case "Update":
                    case "Install":
                        _install();
                        break;
                    case "Uninstall":
                        _uninstall();
                        break;
                    default:
                        break;
                }
                process.exit();
            }).catch(function (v) { process.exit(); });
            break;
        case "Connect":
            global._child = require('child_process').execFile(process.execPath,
                [process.execPath.split('/').pop(), '--no-embedded=1', '--disableUpdate=1',
                    '--MeshName="' + msh.MeshName + '"', '--MeshType="' + msh.MeshType + '"',
                    '--MeshID="' + msh.MeshID + '"',
                    '--ServerID="' + msh.ServerID + '"',
                    '--MeshServer="' + msh.MeshServer + '"',
                    '--AgentCapabilities="0x00000020"']);

            global._child.stdout.on('data', function (c) { });
            global._child.stderr.on('data', function (c) { });
            global._child.on('exit', function (code) { process.exit(code); });

            msg = ("Device Group: " + msh.MeshName + '\n');
            msg += ("Server URL: " + msh.MeshServer + '\n');

            if (process.platform != 'darwin')
            {
                if (!require('message-box').zenity && require('message-box').kdialog)
                {
                    msg += ('\n'+"Press OK to Disconnect");
                }
            }

            var d = require('message-box').create("MeshCentral Agent", msg, 99999, ["Disconnect"]);
            d.then(function (v) { process.exit(); }).catch(function (v) { process.exit(); });
            break;
        case "Uninstall":
            _uninstall();
            process.exit();
            break;
        case "Install":
        case "Update":
            _install();
            process.exit();
            break;
        default:
            console.log(v);
            process.exit();
            break;
    }
}).catch(function (e)
{
    console.log(e);
    process.exit();
});