From fb9668b39d8be4854af99ab28e3e91b9ab4e7de7 Mon Sep 17 00:00:00 2001
From: jcorporation <mail@jcgames.de>
Date: Thu, 20 Sep 2018 17:59:29 +0100
Subject: [PATCH] Feat: option to select jukebox playlist #37

---
 htdocs/index.html  |  8 +++++
 htdocs/js/mympd.js | 38 +++++++++++++++-----
 src/mpd_client.c   | 90 ++++++++++++++++++++++++++++++++--------------
 src/mpd_client.h   |  1 +
 src/mympd.c        |  9 +++--
 5 files changed, 107 insertions(+), 39 deletions(-)

diff --git a/htdocs/index.html b/htdocs/index.html
index 8883560..4a4dac3 100644
--- a/htdocs/index.html
+++ b/htdocs/index.html
@@ -650,6 +650,7 @@
         </div>
         <div class="modal-body">
          <form class="needs-validation" id="settingsFrm" novalidate>
+          <h4>MPD</h4>
           <div class="row">
             <div class="form-group col-md-6">
               <button data-href='{"cmd":"toggleBtn", "options":["btnRandom"]}' id="btnRandom" type="button" class="btn btn-secondary btn-block" title="Random">
@@ -709,14 +710,21 @@
               <div class="invalid-feedback">Must be a number.</div>
             </div>            
           </div>
+          <hr/>
+          <h4>Jukebox</h4>
           <div class="row">
             <div class="form-group col-md-6" data-toggle="buttons">
               <button data-href='{"cmd": "toggleBtn", "options": ["btnJukebox"]}' id="btnJukebox" type="button" class="btn btn-secondary btn-block" title="Jukebox">
                 Jukebox
               </button>
             </div>
+            <div class="form-group input-group col-md-6 border-secondary">
+              <select id="jukeboxPlaylist" class="form-control custom-select border-secondary">
+              </select>
+            </div>
           </div>
           <hr/>
+          <h4>Notifications</h4>
           <div class="row">
             <div class="form-group col-md-6" data-toggle="buttons">
               <button data-href='{"cmd": "toggleBtn", "options": ["btnnotifyPage"]}' type="button" class="btn btn-secondary btn-block" id="btnnotifyPage">
diff --git a/htdocs/js/mympd.js b/htdocs/js/mympd.js
index c673b9b..9fab572 100644
--- a/htdocs/js/mympd.js
+++ b/htdocs/js/mympd.js
@@ -31,8 +31,9 @@ var playstate = '';
 var settings = {};
 var alertTimeout;
 var progressTimer;
-let deferredPrompt;
+var deferredPrompt;
 var dragEl;
+var playlistEl;
 
 var app = {};
 app.apps = { "Playback": { "state": "0/-/", "scrollPos": 0 },
@@ -789,7 +790,7 @@ function parseSettings(obj) {
     toggleBtn('btnSingle', obj.data.single);
     toggleBtn('btnRepeat', obj.data.repeat);
     toggleBtn('btnJukebox', obj.data.jukeboxMode);
-
+    
     if (obj.data.crossfade != undefined) {
         document.getElementById('inputCrossfade').removeAttribute('disabled');
         document.getElementById('inputCrossfade').value = obj.data.crossfade;
@@ -850,6 +851,10 @@ function parseSettings(obj) {
     }
 
     settings = obj.data;
+
+    playlistEl = 'jukeboxPlaylist';
+    sendAPI({"cmd": "MPD_API_PLAYLIST_LIST", "data": {"offset": 0, "filter": "-"}}, getAllPlaylists);
+
     settings.mpdstream = 'http://';
     if (settings.mpdhost == '127.0.0.1' || settings.mpdhost == 'localhost')
         settings.mpdstream += window.location.hostname;
@@ -1504,14 +1509,26 @@ function playlistClear() {
 
 function getAllPlaylists(obj) {
     var nrItems = obj.data.length;
-    var playlists = '<option></option><option>New Playlist</option>';
-    for (var i = 0; i < nrItems; i++) {
-        playlists += '<option>' + obj.data[i].uri + '</option>';
+    var playlists = '';
+    if (obj.offset == 0) {
+        if (playlistEl == 'addToPlaylistPlaylist')
+            playlists = '<option></option><option>New Playlist</option>';
+        else if (playlistEl == 'jukeboxPlaylist')
+            playlists = '<option>Database</option>';
     }
-    document.getElementById('addToPlaylistPlaylist').innerHTML += playlists;
+    for (var i = 0; i < nrItems; i++) {
+        playlists += '<option';
+        if (playlistEl == 'jukeboxPlaylist' && obj.data[i].uri == settings.jukeboxPlaylist)
+            playlists += ' selected';
+        playlists += '>' + obj.data[i].uri + '</option>';
+    }
+    if (obj.offset == 0)
+        document.getElementById(playlistEl).innerHTML = playlists;
+    else
+        document.getElementById(playlistEl).innerHTML += playlists;
     if (obj.totalEntities > obj.returnedEntities) {
         obj.offset += settings.maxElementsPerPage;
-        sendAPI({"cmd": "MPD_API_PLAYLIST_LIST","data": {"offset": obj.offset, "filter": "-"}}, getAllPlaylists);
+        sendAPI({"cmd": "MPD_API_PLAYLIST_LIST", "data": {"offset": obj.offset, "filter": "-"}}, getAllPlaylists);
     }
 }
 
@@ -1524,7 +1541,7 @@ function voteSong(vote) {
         vote = 1;
     else if (vote == 0 && domCache.btnVoteDown.classList.contains('active-fg-red'))
         vote = 1;
-    sendAPI({"cmd": "MPD_API_LIKE","data": {"uri": uri, "like": vote}});
+    sendAPI({"cmd": "MPD_API_LIKE", "data": {"uri": uri, "like": vote}});
     setVoteSongBtns(vote, uri);
 }
 
@@ -1591,6 +1608,7 @@ function showAddToPlaylist(uri) {
         document.getElementById('addToPlaylistLabel').innerText = 'Add Stream';
     }
     modalAddToPlaylist.show();
+    playlistEl = 'addToPlaylistPlaylist';
     sendAPI({"cmd": "MPD_API_PLAYLIST_LIST","data": {"offset": 0, "filter": "-"}}, getAllPlaylists);
 }
 
@@ -1926,6 +1944,7 @@ function confirmSettings() {
     
     if (formOK == true) {
         var selectReplaygain = document.getElementById('selectReplaygain');
+        var selectJukeboxPlaylist = document.getElementById('jukeboxPlaylist');
         sendAPI({"cmd": "MPD_API_SETTINGS_SET", "data": {
             "consume": (document.getElementById('btnConsume').classList.contains('active') ? 1 : 0),
             "random":  (document.getElementById('btnRandom').classList.contains('active') ? 1 : 0),
@@ -1937,7 +1956,8 @@ function confirmSettings() {
             "mixrampdelay": (settings.mixramp == true ? document.getElementById('inputMixrampdelay').value : settings.mixrampdelay),
             "notificationWeb": (document.getElementById('btnnotifyWeb').classList.contains('active') ? true : false),
             "notificationPage": (document.getElementById('btnnotifyPage').classList.contains('active') ? true : false),
-            "jukeboxMode": (document.getElementById('btnJukebox').classList.contains('active') ? true : false)
+            "jukeboxMode": (document.getElementById('btnJukebox').classList.contains('active') ? true : false),
+            "jukeboxPlaylist": selectJukeboxPlaylist.options[selectJukeboxPlaylist.selectedIndex].value
         }}, getSettings);
         modalSettings.hide();
     } else
diff --git a/src/mpd_client.c b/src/mpd_client.c
index dc9e46e..1814ec8 100644
--- a/src/mpd_client.c
+++ b/src/mpd_client.c
@@ -112,18 +112,22 @@ void callback_mympd(struct mg_connection *nc, const struct mg_str msg) {
             n = mympd_put_state(mpd.buf, &mpd.song_id, &mpd.next_song_id, &mpd.last_song_id, &mpd.queue_version, &mpd.queue_length);
             break;
         case MPD_API_SETTINGS_SET:
-            je = json_scanf(msg.p, msg.len, "{data: {notificationWeb: %B, notificationPage: %B, jukeboxMode: %B}}", 
+            je = json_scanf(msg.p, msg.len, "{data: {notificationWeb: %B, notificationPage: %B, jukeboxMode: %B, jukeboxPlaylist: %Q}}", 
                 &mympd_state.notificationWeb, 
                 &mympd_state.notificationPage,
-                &mympd_state.jukeboxMode);
-            if (je == 3) {
+                &mympd_state.jukeboxMode,
+                &mympd_state.jukeboxPlaylist);
+            if (je == 4) {
                 char tmp_file[200];
                 snprintf(tmp_file, 200, "%s.tmp", config.statefile);
-                json_fprintf(tmp_file, "{notificationWeb: %B, notificationPage: %B, jukeboxMode: %B}", 
+                json_fprintf(tmp_file, "{notificationWeb: %B, notificationPage: %B, jukeboxMode: %B, jukeboxPlaylist: %Q}", 
                     mympd_state.notificationWeb,
                     mympd_state.notificationPage,
-                    mympd_state.jukeboxMode);
+                    mympd_state.jukeboxMode,
+                    mympd_state.jukeboxPlaylist);
                 rename(tmp_file, config.statefile);
+                if (mympd_state.jukeboxMode == true)
+                    mympd_jukebox();
             }
             
             je = json_scanf(msg.p, msg.len, "{data: {random: %u}}", &uint_buf1);
@@ -697,7 +701,7 @@ void mympd_idle(struct mg_mgr *s, int timeout) {
     switch (mpd.conn_state) {
         case MPD_DISCONNECTED:
             /* Try to connect */
-            printf("MPD Connecting to %s: %ld\n", config.mpdhost, config.mpdport);
+            printf("MPD Connecting to %s:%ld\n", config.mpdhost, config.mpdport);
             mpd.conn = mpd_connection_new(config.mpdhost, config.mpdport, mpd.timeout);
             if (mpd.conn == NULL) {
                 printf("MPD connection failed.");
@@ -933,32 +937,63 @@ void mympd_jukebox() {
     mpd_status_free(status);
     if (queue_length > 0)
         return;
+        
+    srand((unsigned int)time(NULL));
     
-    struct mpd_stats *stats = mpd_run_stats(mpd.conn);
-    num_songs = mpd_stats_get_number_of_songs(stats);
-    mpd_stats_free(stats);
-    num_songs--;
-    if (num_songs > 0) {
-        srand((unsigned int)time(NULL));
-        rand_song = rand() % num_songs;
-        mpd_send_list_all(mpd.conn, "/");
-        i = 0;
-        while ((entity = mpd_recv_entity(mpd.conn)) != NULL) {
-            if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG) {
-                if (i == rand_song)
+    if (strcmp(mympd_state.jukeboxPlaylist, "Database") == 0) {
+        struct mpd_stats *stats = mpd_run_stats(mpd.conn);
+        num_songs = mpd_stats_get_number_of_songs(stats);
+        mpd_stats_free(stats);
+        num_songs--;
+        if (num_songs > 0) {
+            rand_song = rand() % num_songs;
+            mpd_send_list_all(mpd.conn, "/");
+            i = 0;
+            while ((entity = mpd_recv_entity(mpd.conn)) != NULL) {
+                if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG) {
+                    if (i == rand_song)
                         break;
-                i++;
+                    i++;
+                }
+                mpd_entity_free(entity);
+            }
+            mpd_response_finish(mpd.conn);
+            song = mpd_entity_get_song(entity);        
+            if (song != NULL) {
+                printf("Jukebox enabled, playing random song from database: %d/%d\n", rand_song, num_songs);
+                mpd_run_add(mpd.conn, mpd_song_get_uri(song));
+                mpd_run_play(mpd.conn);
             }
             mpd_entity_free(entity);
         }
-        mpd_response_finish(mpd.conn);
-        song = mpd_entity_get_song(entity);        
-        if (song != NULL) {
-            printf("Jukebox enabled, playing random song %d/%d\n", rand_song, num_songs);
-            mpd_run_add(mpd.conn, mpd_song_get_uri(song));
-            mpd_run_play(mpd.conn);
+    }
+    else {
+        mpd_send_list_playlist(mpd.conn, mympd_state.jukeboxPlaylist);
+        num_songs = 0;
+        while ((entity = mpd_recv_entity(mpd.conn)) != NULL) {
+            num_songs++;
+            mpd_entity_free(entity);
+        }
+        num_songs--;
+        if (num_songs > 0) {
+            rand_song = rand() % num_songs;
+            mpd_send_list_playlist(mpd.conn, mympd_state.jukeboxPlaylist);
+            i = 0;
+            while ((entity = mpd_recv_entity(mpd.conn)) != NULL) {
+                if (i == rand_song)
+                    break;
+                i++;
+                mpd_entity_free(entity);
+            }
+            mpd_response_finish(mpd.conn);
+            song = mpd_entity_get_song(entity);
+            if (song != NULL) {
+                printf("Jukebox enabled, playing random song from %s: %d/%d\n", mympd_state.jukeboxPlaylist, rand_song, num_songs);
+                mpd_run_add(mpd.conn, mpd_song_get_uri(song));
+                mpd_run_play(mpd.conn);
+            }
+            mpd_entity_free(entity);
         }
-        mpd_entity_free(entity);
     }
 }
 
@@ -1051,7 +1086,7 @@ int mympd_put_settings(char *buffer) {
         "repeat: %d, single: %d, crossfade: %d, consume: %d, random: %d, "
         "mixrampdb: %f, mixrampdelay: %f, mpdhost: %Q, mpdport: %d, passwort_set: %B, "
         "streamport: %d, coverimage: %Q, stickers: %B, mixramp: %B, maxElementsPerPage: %d, "
-        "replaygain: %Q, notificationWeb: %B, notificationPage: %B, jukeboxMode: %B, "
+        "replaygain: %Q, notificationWeb: %B, notificationPage: %B, jukeboxMode: %B, jukeboxPlaylist: %Q, "
         "tags: { Artist: %B, Album: %B, AlbumArtist: %B, Title: %B, Track: %B, Genre: %B, Date: %B,"
         "Composer: %B, Performer: %B }"
         "}}", 
@@ -1074,6 +1109,7 @@ int mympd_put_settings(char *buffer) {
         mympd_state.notificationWeb,
         mympd_state.notificationPage,
         mympd_state.jukeboxMode,
+        mympd_state.jukeboxPlaylist,
         mpd.tag_artist,
         mpd.tag_album,
         mpd.tag_album_artist,
diff --git a/src/mpd_client.h b/src/mpd_client.h
index 5777cd2..f0d3e02 100644
--- a/src/mpd_client.h
+++ b/src/mpd_client.h
@@ -175,6 +175,7 @@ typedef struct {
     bool notificationWeb;
     bool notificationPage;
     bool jukeboxMode;
+    const char* jukeboxPlaylist;
 } t_mympd_state;
 
 t_mympd_state mympd_state;
diff --git a/src/mympd.c b/src/mympd.c
index 199028e..81d72dc 100644
--- a/src/mympd.c
+++ b/src/mympd.c
@@ -236,19 +236,22 @@ int main(int argc, char **argv) {
 
     if (access( config.statefile, F_OK ) != -1 ) {
         char *content = json_fread(config.statefile);
-        int je = json_scanf(content, strlen(content), "{notificationWeb: %B, notificationPage: %B, jukeboxMode: %B}", 
+        int je = json_scanf(content, strlen(content), "{notificationWeb: %B, notificationPage: %B, jukeboxMode: %B, jukeboxPlaylist: %Q}", 
             &mympd_state.notificationWeb, 
             &mympd_state.notificationPage,
-            &mympd_state.jukeboxMode);
-        if (je != 3) {
+            &mympd_state.jukeboxMode,
+            &mympd_state.jukeboxPlaylist);
+        if (je != 4) {
             mympd_state.notificationWeb = false;
             mympd_state.notificationPage = true;
             mympd_state.jukeboxMode = false;
+            mympd_state.jukeboxPlaylist = "Database";
         }
     } else {
         mympd_state.notificationWeb = false;
         mympd_state.notificationPage = true;
         mympd_state.jukeboxMode = false;
+        mympd_state.jukeboxPlaylist = "Database";
     }
 
     signal(SIGTERM, signal_handler);