Sort the polochon movies by date_added by default

frontend/js/reducers/movies.js

@@ -13,10 +13,14 @@ const handlers = {
   "MOVIE_LIST_FETCH_PENDING": state => state.set("loading", true),
   "MOVIE_LIST_FETCH_ERROR": state => state.set("loading", false),
   "MOVIE_LIST_FETCH_FULFILLED": (state, action) => {
-    let movies = Map();
+    let allMoviesInPolochon = true
+    let movies = Map()
     action.payload.response.data.map(function (movie) {
       movie.fetchingDetails = false;
       movie.fetchingSubtitles = false;
+      if (movie.polochon_url === "") {
+        allMoviesInPolochon = false
+      }
       movies = movies.set(movie.imdb_id, fromJS(movie));
     })
 
@@ -24,7 +28,16 @@ const handlers = {
     let selectedImdbId = "";
     if (movies.size > 0) {
       // Sort by year
-      movies = movies.sort((a,b) => b.get("year") - a.get("year"));
+      movies = movies.sort((a,b) => {
+        if (!allMoviesInPolochon) {
+          return b.get("year") - a.get("year")
+        }
+
+        const dateA = new Date(a.get("date_added"))
+        const dateB = new Date(b.get("date_added"))
+        return dateA > dateB ? -1 : dateA < dateB ? 1 : 0;
+      });
+
       selectedImdbId = movies.first().get("imdb_id");
     }