From ad573b8bc7301db602782386d1f1a6d22ff82aab Mon Sep 17 00:00:00 2001
From: whatdoineed2do/Ray <whatdoineed2do@nospam.gmail.com>
Date: Sun, 5 Sep 2021 17:52:59 +0100
Subject: [PATCH] [db,jsonapi]] update api/library/tracks and db to accept
 'flag' param

---
 src/db.c            | 21 +++++++++++++++++++++
 src/db.h            | 10 ++++++++++
 src/httpd_jsonapi.c | 16 ++++++++++++++++
 3 files changed, 47 insertions(+)

diff --git a/src/db.c b/src/db.c
index 9c3ecd9c..53587d81 100644
--- a/src/db.c
+++ b/src/db.c
@@ -3324,6 +3324,27 @@ db_file_rating_update_byvirtualpath(const char *virtual_path, uint32_t rating)
 #undef Q_TMPL
 }
 
+int
+db_file_flag_update_byid(uint32_t id, uint32_t flag)
+{
+#define Q_TMPL "UPDATE files SET flag = %d WHERE id = %d;"
+  char *query;
+  int ret;
+
+  query = sqlite3_mprintf(Q_TMPL, flag, id);
+
+  ret = db_query_run(query, 1, 0);
+
+  if (ret == 0)
+    {
+      db_admin_setint64(DB_ADMIN_DB_MODIFIED, (int64_t) time(NULL));
+      listener_notify(LISTENER_RATING);
+    }
+
+  return ((ret < 0) ? -1 : sqlite3_changes(hdl));
+#undef Q_TMPL
+}
+
 void
 db_file_delete_bypath(const char *path)
 {
diff --git a/src/db.h b/src/db.h
index 97ca3f58..731f7100 100644
--- a/src/db.h
+++ b/src/db.h
@@ -141,6 +141,13 @@ enum data_kind {
 const char *
 db_data_kind_label(enum data_kind data_kind);
 
+enum flag_kind {
+  FLAG_KIND_NA = 0,     // unset
+  FLAG_KIND_DELETE = 1, // delete
+
+  FLAG_KIND_MAX         // unused
+};
+
 /* Note that fields marked as integers in the metadata map in filescanner_ffmpeg must be uint32_t here */
 struct media_file_info {
   uint32_t id;
@@ -655,6 +662,9 @@ db_file_seek_update(int id, uint32_t seek);
 int
 db_file_rating_update_byid(uint32_t id, uint32_t rating);
 
+int
+db_file_flag_update_byid(uint32_t id, uint32_t rating);
+
 int
 db_file_rating_update_byvirtualpath(const char *virtual_path, uint32_t rating);
 
diff --git a/src/httpd_jsonapi.c b/src/httpd_jsonapi.c
index 89fdf63f..aa4938f6 100644
--- a/src/httpd_jsonapi.c
+++ b/src/httpd_jsonapi.c
@@ -311,6 +311,7 @@ track_to_json(struct db_media_file_info *dbmfi)
   safe_json_add_int_from_string(item, "samplerate", dbmfi->samplerate);
   safe_json_add_int_from_string(item, "bitrate", dbmfi->bitrate);
   safe_json_add_int_from_string(item, "channels", dbmfi->channels);
+  safe_json_add_int_from_string(item, "flag", dbmfi->flag);
 
   ret = safe_atoi32(dbmfi->media_kind, &intval);
   if (ret == 0)
@@ -2221,6 +2222,7 @@ queue_item_to_json(struct db_queue_item *queue_item, char shuffle)
   json_object_object_add(item, "bitrate", json_object_new_int(queue_item->bitrate));
   json_object_object_add(item, "samplerate", json_object_new_int(queue_item->samplerate));
   json_object_object_add(item, "channels", json_object_new_int(queue_item->channels));
+  json_object_object_add(item, "flag", json_object_new_int(queue_item->flag));
 
   return item;
 }
@@ -3339,6 +3341,20 @@ jsonapi_reply_library_tracks_put_byid(struct httpd_request *hreq)
         return HTTP_INTERNAL;
     }
 
+  // retreive via "/api/search?type=tracks&expression=flag+=+1"
+  param = evhttp_find_header(hreq->query, "flag");
+  if (param)
+    {
+      ret = safe_atoi32(param, &val);
+      if (ret < 0 || (ret == 0 && (val < FLAG_KIND_NA || val >= FLAG_KIND_MAX)) )
+	return HTTP_BADREQUEST;
+
+      ret = db_file_flag_update_byid(track_id, val);
+
+      if (ret < 0)
+        return HTTP_INTERNAL;
+    }
+
   return HTTP_OK;
 }