Use xem mapping to retrive back episode number/season number

scanner/providers/implementations/themoviedatabase.py

@@ -384,8 +384,11 @@ class TheMovieDatabase(Provider):
 		if search["original_language"] not in language:
 			language.append(search["original_language"])
 
-		if season is None:
-			season = await self._xem.get_season_override("tvdb", tvdbid, name)
+		# Handle weird season names overrides from thexem.
+		# For example when name is "Jojo's bizzare adventure - Stone Ocean", with season None,
+		# We want something like season 6 ep 3.
+		if season is None and absolute is not None:
+			(season, episode, absolute) = await self._xem.get_episode_override("tvdb", tvdbid, name, absolute)
 
 		if not show_id in self.absolute_episode_cache:
 			await self.get_absolute_order(show_id)

scanner/providers/implementations/thexem.py

@@ -1,11 +1,9 @@
-import asyncio
 import logging
-from typing import Dict, List, Literal, Tuple
+from typing import Dict, List, Literal
 from aiohttp import ClientSession
 from datetime import timedelta, datetime
 from functools import wraps
 
-from providers.types.episode import Episode
 from providers.utils import ProviderError
 
 
@@ -47,12 +45,36 @@ class TheXem:
 			},
 		) as r:
 			r.raise_for_status()
-			ret = (await r.json())
+			ret = await r.json()
 			if "data" not in ret or ret["result"] == "failure":
 				logging.error("Could not fetch xem metadata. Error: %s", ret["message"])
 				raise ProviderError("Could not fetch xem metadata")
 			return ret["data"]
 
+	@cache(ttl=timedelta(days=1))
+	async def get_show_map(
+		self, provider: Literal["tvdb"] | Literal["anidb"], id: str
+	) -> List[
+		Dict[
+			Literal["scene"] | Literal["tvdb"] | Literal["anidb"],
+			Dict[Literal["season"] | Literal["episode"] | Literal["absolute"], int],
+		]
+	]:
+		logging.info("Fetching from thexem the map of %s (%s)", id, provider)
+		async with self._client.get(
+			f"{self.base}/map/all",
+			params={
+				"id": id,
+				"origin": provider,
+			},
+		) as r:
+			r.raise_for_status()
+			ret = await r.json()
+			if "data" not in ret or ret["result"] == "failure":
+				logging.error("Could not fetch xem mapping. Error: %s", ret["message"])
+				raise ProviderError("Could not fetch xem mapping")
+			return ret["data"]
+
 	async def get_season_override(
 		self, provider: Literal["tvdb"] | Literal["anidb"], id: str, show_name: str
 	):
@@ -65,3 +87,32 @@ class TheXem:
 			if show_name.lower() == name.lower():
 				return season
 		return None
+
+	async def get_episode_override(
+		self,
+		provider: Literal["tvdb"] | Literal["anidb"],
+		id: str,
+		show_name: str,
+		episode: int,
+	):
+		master_season = await self.get_season_override(provider, id, show_name)
+		# master season is not always a direct translation with a tvdb season, we need to translate that back
+		map = await self.get_show_map(provider, id)
+		ep = next(
+			(
+				x
+				for x in map
+				if x["scene"]["season"] == master_season
+				and x["scene"]["episode"] == episode
+			),
+			None,
+		)
+		if ep is None:
+			logging.warning(
+				"Could not get xem mapping for show %s, falling back to identifier mapping.",
+				show_name,
+			)
+			return [master_season, episode, None]
+
+		# Only tvdb has a proper absolute handling so we always use this one.
+		return (ep[provider]["season"], ep[provider]["episode"], ep["tvdb"]["absolute"])