Add default playlist preference

Closes https://github.com/iv-org/invidious/issues/5421

locales/en-US.json

@@ -122,6 +122,7 @@
     "Redirect homepage to feed: ": "Redirect homepage to feed: ",
     "preferences_max_results_label": "Number of videos shown in feed: ",
     "preferences_sort_label": "Sort videos by: ",
+    "preferences_default_playlist": "Default playlist: ",
     "published": "published",
     "published - reverse": "published - reverse",
     "alphabetically": "alphabetically",

locales/es.json

@@ -78,6 +78,7 @@
     "Redirect homepage to feed: ": "Redirigir la página de inicio a la fuente: ",
     "preferences_max_results_label": "Número de videos mostrados en la fuente: ",
     "preferences_sort_label": "Ordenar los videos por: ",
+    "preferences_default_playlist": "Lista de reproducción por defecto: ",
     "published": "fecha de publicación",
     "published - reverse": "fecha de publicación: orden inverso",
     "alphabetically": "alfabéticamente",

src/invidious/config.cr

@@ -52,6 +52,8 @@ struct ConfigPreferences
   property vr_mode : Bool = true
   property show_nick : Bool = true
   property save_player_pos : Bool = false
+  @[YAML::Field(ignore: true)]
+  property default_playlist : String? = nil
 
   def to_tuple
     {% begin %}

src/invidious/routes/preferences.cr

@@ -144,6 +144,8 @@ module Invidious::Routes::PreferencesRoute
     notifications_only ||= "off"
     notifications_only = notifications_only == "on"
 
+    default_playlist = env.params.body["default_playlist"]?.try &.as(String)
+
     # Convert to JSON and back again to take advantage of converters used for compatibility
     preferences = Preferences.from_json({
       annotations:                 annotations,
@@ -180,6 +182,7 @@ module Invidious::Routes::PreferencesRoute
       vr_mode:                     vr_mode,
       show_nick:                   show_nick,
       save_player_pos:             save_player_pos,
+      default_playlist:            default_playlist,
     }.to_json)
 
     if user = env.get? "user"

src/invidious/user/preferences.cr

@@ -56,6 +56,7 @@ struct Preferences
   property extend_desc : Bool = CONFIG.default_user_preferences.extend_desc
   property volume : Int32 = CONFIG.default_user_preferences.volume
   property save_player_pos : Bool = CONFIG.default_user_preferences.save_player_pos
+  property default_playlist : String? = nil
 
   module BoolToString
     def self.to_json(value : String, json : JSON::Builder)

src/invidious/views/user/preferences.ecr

@@ -208,6 +208,18 @@
                 <input name="automatic_instance_redirect" id="automatic_instance_redirect" type="checkbox" <% if preferences.automatic_instance_redirect %>checked<% end %>>
             </div>
 
+            <% if user = env.get?("user").as(User) %>
+                <% playlists = Invidious::Database::Playlists.select_user_created_playlists(user.email) %>
+                <div class="pure-control-group">
+                    <label for="default_playlist"><%= translate(locale, "preferences_default_playlist") %></label>
+                    <select name="default_playlist" id="default_playlist">
+                        <% playlists.each do |plid, playlist_title| %>
+                            <option value="<%= plid %>" <%= "selected" if user.preferences.default_playlist == plid %>><%= HTML.escape(playlist_title) %></option>
+                        <% end %>
+                    </select>
+                </div>
+            <% end %>
+
             <% if env.get? "user" %>
                 <legend><%= translate(locale, "preferences_category_subscription") %></legend>
 

src/invidious/views/watch.ecr

@@ -163,7 +163,7 @@ we're going to need to do it here in order to allow for translations.
                             <label for="playlist_id"><%= translate(locale, "Add to playlist: ") %></label>
                             <select style="width:100%" name="playlist_id" id="playlist_id">
                                 <% playlists.each do |plid, playlist_title| %>
-                                    <option data-plid="<%= plid %>" value="<%= plid %>"><%= HTML.escape(playlist_title) %></option>
+                                    <option data-plid="<%= plid %>" value="<%= plid %>" <%= "selected" if user.preferences.default_playlist == plid %>><%= HTML.escape(playlist_title) %></option>
                                 <% end %>
                             </select>
                         </div>