handle is_watched state in backend

backend/common/src/helper.py

@@ -275,3 +275,19 @@ def get_channel_overwrites() -> dict[str, dict[str, Any]]:
     overwrites = {i["channel_id"]: i["channel_overwrites"] for i in result}
 
     return overwrites
+
+
+def calc_is_watched(duration: float, position: float) -> bool:
+    """considered watched based on duration position"""
+
+    if not duration or duration <= 0:
+        return False
+
+    if duration < 60:
+        threshold = 0.5
+    elif duration > 900:
+        threshold = 1 - (180 / duration)
+    else:
+        threshold = 0.9
+
+    return position >= duration * threshold

backend/common/src/search_processor.py

@@ -45,7 +45,11 @@ class SearchProcess:
         if not all_positions:
             return None
 
-        pos_index = {i["youtube_id"]: i["position"] for i in all_positions}
+        pos_index = {
+            i["youtube_id"]: i["position"]
+            for i in all_positions
+            if not i.get("watched")
+        }
         return pos_index
 
     def _process_result(self, result):