feat(api): add get_podcasts method for batch retrieval

This commit introduces a new method `get_podcasts` to the `NrkPodcastAPI` class, allowing for batch retrieval of multiple podcasts. The CLI
has been updated to support fetching multiple podcasts in a single command.

Changes include:

 • New `get_podcasts` method in api.py using `asyncio.gather` for concurrent requests
 • Modified `get_podcast` CLI command to accept multiple podcast IDs
 • Updated CLI help text and function description for `get_podcast`
 • Adjusted `get_podcast` CLI function to use the new batch retrieval method

nrk_psapi/api.py

@@ -178,6 +178,10 @@ async def get_podcast(self, podcast_id: str) -> Podcast:
         result = await self._request(f"radio/catalog/podcast/{podcast_id}")
         return Podcast.from_dict(result)
 
+    async def get_podcasts(self, podcast_ids: list[str]) -> list[Podcast]:
+        results: list[Podcast] = await asyncio.gather(*[self.get_podcast(podcast_id) for podcast_id in podcast_ids])
+        return results
+
     async def get_podcast_episodes(self, podcast_id: str) -> list[Episode]:
         result = await self._request_paged_all(
             f"radio/catalog/podcast/{podcast_id}/episodes",

nrk_psapi/cli.py

@@ -22,8 +22,8 @@ def main_parser() -> argparse.ArgumentParser:
     get_podcasts_parser = subparsers.add_parser('get_all_podcasts', description='Get all podcasts.')
     get_podcasts_parser.set_defaults(func=get_all_podcasts)
 
-    get_podcast_parser = subparsers.add_parser('get_podcast', description='Get podcast.')
-    get_podcast_parser.add_argument('podcast_id', type=str, help='The podcast id.')
+    get_podcast_parser = subparsers.add_parser('get_podcast', description='Get podcast(s).')
+    get_podcast_parser.add_argument('podcast_id', type=str, nargs="+", help='The podcast id(s).')
     get_podcast_parser.set_defaults(func=get_podcast)
 
     get_episode_parser = subparsers.add_parser('get_episode', description='Get episode.')
@@ -53,10 +53,11 @@ async def get_all_podcasts():
 
 
 async def get_podcast(args):
-    """Get podcast."""
+    """Get podcast(s)."""
     async with NrkPodcastAPI() as client:
-        podcast = await client.get_podcast(args.podcast_id)
-        rprint(podcast)
+        podcasts = await client.get_podcasts(args.podcast_id)
+        for podcast in podcasts:
+            rprint(podcast)
 
 
 async def get_episode(args):