Improve robustness in case of missing tmdb ids in the db

Author: lbnt

addon.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<addon id="plugin.video.jlom" version="0.1.8" name="Just Lists Of Movies" provider-name="lbnt">
+<addon id="plugin.video.jlom" version="0.1.9" name="Just Lists Of Movies" provider-name="lbnt">
 <requires>
   <import addon="xbmc.python" version="3.0.1"/>
   <import addon="script.module.requests"/>
@@ -19,6 +19,6 @@
     <icon>resources/images/icon.png</icon>
     <screenshot>resources/images/screenshot.jpg</screenshot>
   </assets>
-  <news>0.1.8 New matching implementation between lists and local media, new sorting options</news>
+  <news>0.1.9 Improve robustness in case of missing tmdb ids</news>
 </extension>
 </addon>

main.py

@@ -123,11 +123,25 @@ def build_tmdbid_to_dbid_index():
     result = json.loads(response)
 
     """Build a dict {tmdb: movieid}."""
+    nbmissingids = 0
     index = {}
-    for movie in result["result"]["movies"]:
-        tmdb = movie["uniqueid"].get("tmdb")
-        if tmdb is not None:
-            index[tmdb] = movie["movieid"]
+    for movie in result.get("result", {}).get("movies", []):
+        uniqueid = movie.get("uniqueid")
+        if not isinstance(uniqueid, dict): # uniqueid is missing or not a dict
+            nbmissingids += 1
+            continue
+
+        tmdbid = uniqueid.get("tmdb")
+        if tmdbid is None: # tmdb id is missing
+            nbmissingids += 1
+            continue
+
+        movieid = movie.get("movieid")
+        if movieid is not None:
+            index[tmdbid] = movieid
+
+    if nbmissingids > 0:
+        xbmcgui.Dialog().notification('jlom', f'{nbmissingids} movies don\'t have a tmdb id\n and won\'t be found in the lists!', xbmcgui.NOTIFICATION_WARNING, 10000)
 
     return index