feat: Add script to get Navidrome playlists via Subsonic API

Co-authored-by: aider (gemini/gemini-2.5-pro) <aider@aider.chat>

main.py

@@ -1,8 +1,68 @@
 import os, logging
+import hashlib
+import random
+import string
+
+import requests
 DEBUG = os.environ.get('DEBUG')
 logging.basicConfig(
         format='[%(asctime)s] %(levelname)s %(module)s/%(funcName)s - %(message)s',
         level=logging.DEBUG if DEBUG else logging.INFO)
 
 def main():
-    pass
+    """Get playlists from a Navidrome server using the Subsonic API."""
+    navidrome_url = os.environ.get('NAVIDROME_URL')
+    username = os.environ.get('NAVIDROME_USER')
+    password = os.environ.get('NAVIDROME_PASSWORD')
+
+    if not all([navidrome_url, username, password]):
+        logging.error("NAVIDROME_URL, NAVIDROME_USER, and NAVIDROME_PASSWORD environment variables must be set.")
+        return
+
+    # Subsonic API requires a salt and a token (md5(password + salt))
+    salt = ''.join(random.choice(string.ascii_lowercase + string.digits) for _ in range(10))
+    token = hashlib.md5((password + salt).encode('utf-8')).hexdigest()
+
+    params = {
+        'u': username,
+        't': token,
+        's': salt,
+        'v': '1.16.1',
+        'c': 'playlist-script',
+        'f': 'json'
+    }
+
+    api_url = f"{navidrome_url.rstrip('/')}/rest/getPlaylists.view"
+
+    try:
+        response = requests.get(api_url, params=params)
+        response.raise_for_status()  # Raise an exception for bad status codes
+    except requests.exceptions.RequestException as e:
+        logging.error(f"Error connecting to Navidrome: {e}")
+        return
+
+    data = response.json()
+
+    subsonic_response = data.get('subsonic-response')
+    if not subsonic_response:
+        logging.error("Invalid response format from server.")
+        return
+
+    if subsonic_response.get('status') == 'failed':
+        error = subsonic_response.get('error', {})
+        logging.error(f"API Error: {error.get('message')} (code: {error.get('code')})")
+        return
+
+    playlists = subsonic_response.get('playlists', {}).get('playlist', [])
+
+    if not playlists:
+        logging.info("No playlists found for user '%s'.", username)
+        return
+
+    print(f"Playlists for {username}:")
+    for playlist in playlists:
+        print(f"  - {playlist.get('name')} ({playlist.get('songCount')} songs)")
+
+
+if __name__ == "__main__":
+    main()