From b7a625097d525cc9f461e08b234dd13c1e1b1d6f Mon Sep 17 00:00:00 2001
From: Fabio Manganiello <blacklight86@gmail.com>
Date: Fri, 7 Jun 2019 23:07:36 +0200
Subject: [PATCH] Added playlist editor in music.mpd web panel

---
 .../webpanel/plugins/music.mpd/index.scss     |  83 ++++--
 .../http/static/js/plugins/music.mpd/index.js | 271 +++++++++++++++++-
 .../templates/plugins/music.mpd/index.html    |  61 +++-
 .../templates/plugins/music.mpd/search.html   |   3 +-
 platypush/plugins/music/__init__.py           |   4 -
 platypush/plugins/music/mpd/__init__.py       |  79 +++++
 6 files changed, 464 insertions(+), 37 deletions(-)

diff --git a/platypush/backend/http/static/css/source/webpanel/plugins/music.mpd/index.scss b/platypush/backend/http/static/css/source/webpanel/plugins/music.mpd/index.scss
index 7288e5c85..7f3c0bef0 100644
--- a/platypush/backend/http/static/css/source/webpanel/plugins/music.mpd/index.scss
+++ b/platypush/backend/http/static/css/source/webpanel/plugins/music.mpd/index.scss
@@ -76,6 +76,30 @@
         }
     }
 
+    %ctrl-button {
+        border: 0;
+        padding: 0 1.5rem;
+
+        &:disabled {
+            background: none;
+        }
+
+        &.enabled {
+            color: $button-enabled-color;
+        }
+
+        .fa-search {
+            color: $button-hover-color;
+        }
+    }
+
+    %move {
+        background: $move-mode-track-bg !important;
+        border-top: $move-mode-track-border;
+        border-bottom: $move-mode-track-border;
+        cursor: move;
+    }
+
     .browser,
     .search,
     .playlist {
@@ -97,25 +121,11 @@
             }
 
             * > button {
-                border: 0;
-                padding: 0 1.5rem;
-
-                &:disabled {
-                    background: none;
-                }
-
-                &.enabled {
-                    color: $button-enabled-color;
-                }
-
-                .fa-search {
-                    color: $button-hover-color;
-                }
+                @extend %ctrl-button;
             }
 
             button {
                 padding: 0 .75rem;
-
             }
         }
 
@@ -142,15 +152,14 @@
             }
 
             &.move:hover {
-                background: $move-mode-track-bg !important;
-                border-top: $move-mode-track-border;
-                border-bottom: $move-mode-track-border;
-                cursor: move;
+                @extend %move;
             }
         }
     }
 
-    .playlist-add {
+    .playlist-add,
+    .editor {
+        .editor-controls,
         .playlist-add-controls {
             background: $playlist-controls-bg;
             border-bottom: $playlist-controls-border;
@@ -160,12 +169,35 @@
             padding: .5rem;
         }
 
+        input[type=text] {
+            width: 100%;
+        }
+
+        button {
+            @extend %ctrl-button;
+            padding: 0 .75rem;
+        }
+
+        .editor-container,
         .playlists-container {
-            max-height: 70vh;
             overflow: auto;
             margin: 0 -2rem;
             padding: 1rem;
         }
+
+        .playlists-container {
+            max-height: 70vh;
+        }
+
+        .editor-container {
+            max-height: 65vh;
+
+            .item {
+                &.move:hover {
+                    @extend %move;
+                }
+            }
+        }
     }
 
     .controls {
@@ -355,7 +387,8 @@
     }
 }
 
-#music-mpd-search-modal {
+#music-mpd-search-modal,
+#music-mpd-playlist-edit {
     .dropdown {
         z-index: 503;
     }
@@ -367,6 +400,12 @@
     }
 }
 
+#music-mpd-playlist-edit {
+    .modal {
+        min-width: 80rem;
+    }
+}
+
 @media #{map-get($widths, 's')} {
     #music-mpd-info {
         .modal {
diff --git a/platypush/backend/http/static/js/plugins/music.mpd/index.js b/platypush/backend/http/static/js/plugins/music.mpd/index.js
index 910f24c4b..67a24e2d0 100644
--- a/platypush/backend/http/static/js/plugins/music.mpd/index.js
+++ b/platypush/backend/http/static/js/plugins/music.mpd/index.js
@@ -12,12 +12,14 @@ Vue.component('music-mpd', {
             playlistFilter: '',
             browserFilter: '',
             playlistAddFilter: '',
+            editorFilter: '',
             browserPath: [],
             browserItems: [],
 
             selectionMode: {
                 playlist: false,
                 browser: false,
+                editor: false,
             },
 
             moveMode: {
@@ -28,12 +30,15 @@ Vue.component('music-mpd', {
             infoItem: {},
             modalVisible: {
                 info: false,
+                editor: false,
                 playlistAdd: false,
             },
 
             addToPlaylistItems: [],
+            selectedPlaylist: {},
             selectedPlaylistItems: {},
             selectedPlaylistAddItems: {},
+            selectedEditorItems: {},
             selectedBrowserItems: {},
 
             syncTime: {
@@ -213,7 +218,7 @@ Vue.component('music-mpd', {
                         icon: 'user',
                         click: async function() {
                             await self.searchArtist(item);
-                            self.selectedPlaylistItems = {};
+                            self.selectedBrowserItems = {};
                         }
                     });
                 }
@@ -224,7 +229,7 @@ Vue.component('music-mpd', {
                         icon: 'compact-disc',
                         click: async function() {
                             await self.searchAlbum(item);
-                            self.selectedPlaylistItems = {};
+                            self.selectedBrowserItems = {};
                         },
                     });
                 }
@@ -264,6 +269,13 @@ Vue.component('music-mpd', {
                 items.push({
                     text: 'Edit',
                     icon: 'pen',
+                    click: async function() {
+                        const item = Object.values(self.selectedBrowserItems)[0];
+                        self.selectedPlaylist.name = item.name;
+                        await self.refreshSelectedPlaylist();
+                        self.modalVisible.editor = true;
+                        self.selectedBrowserItems = {};
+                    },
                 });
             }
 
@@ -297,6 +309,124 @@ Vue.component('music-mpd', {
 
             return items;
         },
+
+        editorDropdownItems: function() {
+            var self = this;
+            var items = [];
+
+            if (Object.keys(this.selectedEditorItems).length === 1) {
+                const item = Object.values(this.selectedEditorItems)[0];
+
+                items.push(
+                    {
+                        text: 'Play',
+                        icon: 'play',
+                        click: async function() {
+                            await self.add(item.file, position=0);
+                            await self.playpos(0);
+                            self.selectedEditorItems = {};
+                        },
+                    },
+                    {
+                        text: 'Replace and play',
+                        icon: 'play',
+                        click: async function() {
+                            await self.clear();
+                            await self.add(item.file, position=0);
+                            await self.playpos(0);
+                            self.selectedEditorItems = {};
+                        },
+                    }
+                );
+
+                if (item.artist && item.artist.length) {
+                    items.push({
+                        text: 'View artist',
+                        icon: 'user',
+                        click: async function() {
+                            await self.searchArtist(item);
+                            self.selectedEditorItems = {};
+                        }
+                    });
+                }
+
+                if (item.album && item.album.length) {
+                    items.push({
+                        text: 'View album',
+                        icon: 'compact-disc',
+                        click: async function() {
+                            await self.searchAlbum(item);
+                            self.selectedEditorItems = {};
+                        },
+                    });
+                }
+            }
+
+            items.push(
+                {
+                    text: 'Add to queue',
+                    icon: 'plus',
+                    click: async function() {
+                        const items = Object.values(self.selectedEditorItems);
+                        const promises = items.map(item => self.add(item.file));
+
+                        await Promise.all(promises);
+                        self.selectedEditorItems = {};
+                    },
+                },
+                {
+                    text: 'Add to playlist',
+                    icon: 'list',
+                    click: async function() {
+                        self.addToPlaylistItems = Object.keys(self.selectedEditorItems);
+                        self.modalVisible.playlistAdd = true;
+                        await self.listplaylists();
+                        self.selectedEditorItems = {};
+                    },
+                }
+            );
+
+            if (Object.keys(this.selectedEditorItems).length < this.selectedPlaylist.items.length) {
+                items.push({
+                    text: 'Move',
+                    icon: 'retweet',
+                    click: function() {
+                        self.moveMode.editor = true;
+                    },
+                });
+            }
+
+            items.push(
+                {
+                    text: 'Remove',
+                    icon: 'trash',
+                    click: async function() {
+                        if (!confirm('Are you sure you want to remove the selected track' +
+                                (Object.values(self.selectedEditorItems).length > 1 ? 's' : '') + ' from the playlist?')) {
+                            return;
+                        }
+
+                        const items = Object.values(self.selectedEditorItems);
+                        await self.playlistdelete(items.map(_ => _.pos));
+                        self.selectedEditorItems = {};
+                    },
+                }
+            );
+
+            if (Object.keys(this.selectedEditorItems).length === 1) {
+                const item = Object.values(self.selectedEditorItems)[0];
+
+                items.push({
+                    text: 'View info',
+                    icon: 'info',
+                    click: async function() {
+                        await self.info(item.file);
+                    },
+                });
+            }
+
+            return items;
+        },
     },
 
     methods: {
@@ -594,6 +724,14 @@ Vue.component('music-mpd', {
             }
         },
 
+        playlistmove: async function(fromPos, toPos) {
+            if (!this.selectedPlaylist.name) {
+                return;
+            }
+
+            await request('music.mpd.playlistmove', {name: this.selectedPlaylist.name, from_pos: fromPos, to_pos: toPos});
+        },
+
         swap: async function() {
             if (Object.keys(this.selectedPlaylistItems).length !== 2) {
                 return;
@@ -669,6 +807,14 @@ Vue.component('music-mpd', {
             }
         },
 
+        listplaylist: async function(name) {
+            return await request('music.mpd.listplaylist', {name: name});
+        },
+
+        listplaylistinfo: async function(name) {
+            return await request('music.mpd.listplaylistinfo', {name: name});
+        },
+
         playlistadd: async function(items=[], playlists=[]) {
             if (!playlists.length) {
                 if (this.modalVisible.playlistAdd) {
@@ -696,6 +842,50 @@ Vue.component('music-mpd', {
             this.addToPlaylistItems = [];
         },
 
+        playlistdelete: async function(items=[]) {
+            if (!items.length) {
+                items = Object.keys(this.selectedEditorItems);
+            }
+
+            if (!items.length || !this.selectedPlaylist.name) {
+                return;
+            }
+
+            await request('music.mpd.playlistdelete', {name: this.selectedPlaylist.name, pos: items});
+            await this.refreshSelectedPlaylist();
+        },
+
+        playlistclear: async function() {
+            if (!confirm('Are you sure that you want to clear this playlist? This operation is NOT REVERSIBLE')) {
+                return;
+            }
+
+            await request('music.mpd.playlistclear', {name: this.selectedPlaylist.name});
+            await this.refreshSelectedPlaylist();
+        },
+
+        rename: async function() {
+            if (!this.selectedPlaylist.name) {
+                return;
+            }
+
+            var newName = prompt('New name for the playlist', this.selectedPlaylist.name);
+            if (!newName.length) {
+                return;
+            }
+
+            await request('music.mpd.rename', {name: this.selectedPlaylist.name, new_name: newName});
+            await this.listplaylists();
+
+            for (var item of this.browserItems) {
+                if (item.type === 'playlist' && item.name === this.selectedPlaylist.name) {
+                    item.name = newName;
+                }
+            }
+
+            this.selectedPlaylist.name = newName;
+        },
+
         onNewPlayingTrack: async function(event) {
             var previousTrack = {
                 file: this.track.file,
@@ -835,7 +1025,15 @@ Vue.component('music-mpd', {
                 return true;
 
             const filter = this.playlistFilter.split(' ').filter(_ => _.length > 0).map(_ => _.toLocaleLowerCase()).join(' ');
-            return [track.artist || '', track.title || '', track.album || ''].join(' ').toLocaleLowerCase().indexOf() >= 0;
+            return [track.artist || '', track.title || '', track.album || ''].join(' ').toLocaleLowerCase().indexOf(filter) >= 0;
+        },
+
+        matchesEditorFilter: function(track) {
+            if (this.editorFilter.length === 0)
+                return true;
+
+            const filter = this.editorFilter.split(' ').filter(_ => _.length > 0).map(_ => _.toLocaleLowerCase()).join(' ');
+            return [track.artist || '', track.title || '', track.album || ''].join(' ').toLocaleLowerCase().indexOf(filter) >= 0;
         },
 
         matchesBrowserFilter: function(item) {
@@ -881,6 +1079,30 @@ Vue.component('music-mpd', {
             }
         },
 
+        onEditorItemClick: async function(track) {
+            if (this.selectionMode.editor) {
+                if (track.pos in this.selectedEditorItems) {
+                    Vue.delete(this.selectedEditorItems, track.pos);
+                } else {
+                    Vue.set(this.selectedEditorItems, track.pos, track);
+                }
+            } else if (this.moveMode.editor) {
+                var fromPos = Object.values(this.selectedEditorItems).map(_ => _.pos);
+                var toPos = track.pos;
+                this.moveMode.editor = false;
+
+                const promises = fromPos.map((pos,i) => this.playlistmove(pos, toPos+i));
+                await Promise.all(promises);
+                await this.refreshSelectedPlaylist();
+            } else if (track.pos in this.selectedEditorItems) {
+                Vue.delete(this.selectedEditorItems, track.pos);
+            } else {
+                this.selectedEditorItems = {};
+                Vue.set(this.selectedEditorItems, track.pos, track);
+                openDropdown(this.$refs.editorDropdown.$el);
+            }
+        },
+
         onBrowserItemClick: function(item) {
             if (item.type === 'directory' && item.name === '..') {
                 this.selectedBrowserItems = {};
@@ -940,6 +1162,14 @@ Vue.component('music-mpd', {
             this.selectionMode.browser = !this.selectionMode.browser;
         },
 
+        toggleEditorSelectionMode: function() {
+            if (this.selectionMode.editor && Object.keys(this.selectedEditorItems).length) {
+                openDropdown(this.$refs.editorDropdown.$el);
+            }
+
+            this.selectionMode.editor = !this.selectionMode.editor;
+        },
+
         browserSelectAll: function() {
             this.selectedBrowserItems = {};
             this.selectionMode.browser = true;
@@ -953,6 +1183,17 @@ Vue.component('music-mpd', {
             openDropdown(this.$refs.browserDropdown.$el);
         },
 
+        editorSelectAll: function() {
+            this.selectedEditorItems = {};
+            this.selectionMode.editor = true;
+
+            for (var item of this.selectedPlaylist.items) {
+                Vue.set(this.selectedEditorItems, item.pos, item);
+            }
+
+            openDropdown(this.$refs.editorDropdown.$el);
+        },
+
         scrollToActiveTrack: function() {
             if (this.$refs.activePlaylistTrack && this.$refs.activePlaylistTrack.length) {
                 this.$refs.activePlaylistTrack[0].$el.scrollIntoView({behavior: 'smooth'});
@@ -979,7 +1220,17 @@ Vue.component('music-mpd', {
                 return;
             }
 
-            this.add(resource);
+            await this.add(resource);
+        },
+
+        addToPlaylistEditorPrompt: async function() {
+            var resource = prompt('Path or URI of the resource to add');
+            if (!resource.length) {
+                return;
+            }
+
+            await request('music.mpd.playlistadd', {name: this.selectedPlaylist.name, uri: resource});
+            await this.refreshSelectedPlaylist();
         },
 
         savePlaylistPrompt: async function() {
@@ -994,6 +1245,18 @@ Vue.component('music-mpd', {
             let items = await request('music.mpd.lsinfo', {uri: this.browserPath.join('/')});
             this._parseBrowserItems(items);
         },
+
+        refreshSelectedPlaylist: async function() {
+            if (!this.selectedPlaylist.name) {
+                return;
+            }
+
+            let items = (await this.listplaylistinfo(this.selectedPlaylist.name)).map((_, i) => {
+                return { ..._, pos: i }
+            });
+
+            Vue.set(this.selectedPlaylist, 'items', items);
+        },
     },
 
     created: function() {
diff --git a/platypush/backend/http/templates/plugins/music.mpd/index.html b/platypush/backend/http/templates/plugins/music.mpd/index.html
index d46192e2e..f815b03c0 100644
--- a/platypush/backend/http/templates/plugins/music.mpd/index.html
+++ b/platypush/backend/http/templates/plugins/music.mpd/index.html
@@ -6,9 +6,7 @@
 
 <script type="text/x-template" id="tmpl-music-mpd">
     <div class="row music-mpd-container">
-        <music-mpd-search ref="search"
-                          @info="info"
-                          :mpd="this">
+        <music-mpd-search ref="search" @info="info" :mpd="this">
         </music-mpd-search>
 
         <modal id="music-mpd-info" title="Info" v-model="modalVisible.info" ref="modal">
@@ -33,9 +31,9 @@
                     <div class="col-8 value" v-text="infoItem.album"></div>
                 </div>
 
-                <div class="row" v-if="infoItem.year">
-                    <div class="col-4 attr">Year</div>
-                    <div class="col-8 value" v-text="infoItem.year"></div>
+                <div class="row" v-if="infoItem.year || infoItem.date">
+                    <div class="col-4 attr">Date</div>
+                    <div class="col-8 value" v-text="infoItem.year || infoItem.date"></div>
                 </div>
 
                 <div class="row" v-if="infoItem.disc">
@@ -85,6 +83,57 @@
             </div>
         </modal>
 
+        <modal id="music-mpd-playlist-edit" title="Edit/view playlist" v-model="modalVisible.editor" ref="modalEditor">
+            <div class="editor">
+                <div class="editor-controls">
+                    <div class="row">
+                        <div class="col-7 filter-container">
+                            <i class="fa fa-filter input-icon"></i>
+                            <input type="text" class="with-icon" v-model="editorFilter">
+                        </div>
+                        <div class="col-5 pull-right">
+                            <button title="Add item" @click="addToPlaylistEditorPrompt">
+                                <i class="fa fa-plus"></i>
+                            </button>
+                            <button title="Rename playlist" @click="rename">
+                                <i class="fa fa-edit"></i>
+                            </button>
+                            <button :class="{enabled: selectionMode.editor}"
+                                    :title="selectionMode.editor ? 'End selection' : 'Start selection'"
+                                    @click="toggleEditorSelectionMode">
+                                <i class="fa fa-check"></i>
+                            </button>
+                            <button title="Select all"
+                                    @click="editorSelectAll">
+                                <i class="fa fa-check-double"></i>
+                            </button>
+                            <button title="Clear playlist" @click="playlistclear">
+                                <i class="fa fa-ban"></i>
+                            </button>
+                        </div>
+                    </div>
+                </div>
+
+                <div class="editor-container">
+                    <dropdown id="music-mpd-editor-dropdown"
+                              v-if="selectedPlaylist.items"
+                              ref="editorDropdown"
+                              :items="editorDropdownItems">
+                    </dropdown>
+
+                    <music-mpd-playlist-item
+                            v-for="item in selectedPlaylist.items"
+                            v-if="matchesEditorFilter(item)"
+                            :key="item.pos"
+                            :track="item"
+                            :selected="item.pos in selectedEditorItems"
+                            :move="moveMode.editor"
+                            @input="onEditorItemClick">
+                    </music-mpd-playlist-item>
+                </div>
+            </div>
+        </modal>
+
         <div class="row panels">
             <!-- Browser section -->
             <div class="col-no-margin-l-3 col-no-margin-m-3 s-hidden panel browser">
diff --git a/platypush/backend/http/templates/plugins/music.mpd/search.html b/platypush/backend/http/templates/plugins/music.mpd/search.html
index cbc000362..23a041c33 100644
--- a/platypush/backend/http/templates/plugins/music.mpd/search.html
+++ b/platypush/backend/http/templates/plugins/music.mpd/search.html
@@ -30,7 +30,8 @@
 
                 <div class="footer">
                     <div class="left col-6">
-                        <button class="btn-default" v-if="results.length" @click="$event.preventDefault(); showResults = true" title="Show results">
+                        <button class="btn-default" type="button" v-if="results.length"
+                                @click="$event.preventDefault(); showResults = true" title="Show results">
                             <i class="fa fa-list"></i>
                         </button>
                     </div>
diff --git a/platypush/plugins/music/__init__.py b/platypush/plugins/music/__init__.py
index 42c20681e..bca676609 100644
--- a/platypush/plugins/music/__init__.py
+++ b/platypush/plugins/music/__init__.py
@@ -33,10 +33,6 @@ class MusicPlugin(Plugin):
     def add(self, content):
         raise NotImplementedError()
 
-    @action
-    def playlistadd(self, playlist):
-        raise NotImplementedError()
-
     @action
     def clear(self):
         raise NotImplementedError()
diff --git a/platypush/plugins/music/mpd/__init__.py b/platypush/plugins/music/mpd/__init__.py
index 487e4d8ed..f8574931a 100644
--- a/platypush/plugins/music/mpd/__init__.py
+++ b/platypush/plugins/music/mpd/__init__.py
@@ -564,6 +564,26 @@ class MusicMpdPlugin(MusicPlugin):
         return sorted(self._exec('listplaylists', return_status=False),
                       key=lambda p: p['playlist'])
 
+    @action
+    def listplaylist(self, name):
+        """
+        List the items in the specified playlist (without metadata)
+
+        :param name: Name of the playlist
+        :type name: str
+        """
+        return self._exec('listplaylist', name, return_status=False)
+
+    @action
+    def listplaylistinfo(self, name):
+        """
+        List the items in the specified playlist (with metadata)
+
+        :param name: Name of the playlist
+        :type name: str
+        """
+        return self._exec('listplaylistinfo', name, return_status=False)
+
     @action
     def playlistadd(self, name, uri):
         """
@@ -582,6 +602,65 @@ class MusicMpdPlugin(MusicPlugin):
         for res in uri:
             self._exec('playlistadd', name, res)
 
+    @action
+    def playlistdelete(self, name, pos):
+        """
+        Remove one or multiple tracks from a playlist.
+
+        :param name: Playlist name
+        :type name: str
+
+        :param pos: Position or list of positions to remove
+        :type pos: int or list[int]
+        """
+
+        if isinstance(pos, str):
+            pos = int(pos)
+        if isinstance(pos, int):
+            pos = [pos]
+
+        for p in pos:
+            self._exec('playlistdelete', name, p)
+
+    @action
+    def playlistmove(self, name, from_pos, to_pos):
+        """
+        Change the position of a track in the specified playlist
+
+        :param name: Playlist name
+        :type name: str
+
+        :param from_pos: Original track position
+        :type from_pos: int
+
+        :param to_pos: New track position
+        :type to_pos: int
+        """
+        self._exec('playlistmove', name, from_pos, to_pos)
+
+    @action
+    def playlistclear(self, name):
+        """
+        Clears all the elements from the specified playlist
+
+        :param name: Playlist name
+        :type name: str
+        """
+        self._exec('playlistclear', name)
+
+    @action
+    def rename(self, name, new_name):
+        """
+        Rename a playlist
+
+        :param name: Original playlist name
+        :type name: str
+
+        :param new_name: New playlist name
+        :type name: str
+        """
+        self._exec('rename', name, new_name)
+
     @action
     def lsinfo(self, uri=None):
         """