diff --git a/main.py b/main.py
index c016300..f2610a0 100644
--- a/main.py
+++ b/main.py
@@ -7,8 +7,10 @@ logging.basicConfig(
 import asyncio
 import re
 from datetime import datetime, timedelta, timezone
-
 import aiodocker
+import aiohttp
+
+import settings
 
 NAVIDROME_CONTAINER = os.environ.get('NAVIDROME_CONTAINER', 'navidrome-navidrome-1')
 STAR_UNSTAR_WINDOW = timedelta(seconds=4)
@@ -42,6 +44,43 @@ def parse_log_line(line):
     return timestamp, song_id, is_starred
 
 
+async def navidrome_set_rating(song_id):
+    navidrome_url = settings.NAVIDROME_URL
+    username = settings.NAVIDROME_USER
+
+    if not all([navidrome_url, username]):
+        logging.error("NAVIDROME_URL and NAVIDROME_USER must be set in settings.py.")
+        return
+
+    salt = settings.SUBSONIC_SALT
+    token = settings.SUBSONIC_TOKEN
+
+    if not all([salt, token]):
+        password = settings.NAVIDROME_PASSWORD
+        if not password:
+            logging.error("Either (SUBSONIC_SALT and SUBSONIC_TOKEN) or NAVIDROME_PASSWORD must be set in settings.py.")
+            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': 'heart-monitor',
+        'f': 'json'
+        'id': song_id,
+        'rating': 1,
+    }
+
+    api_url = f"{navidrome_url.rstrip('/')}/rest/setRating"
+
+    # TODO: call the subsonic API here
+
+
 async def main():
     """
     Monitors Navidrome container logs for rapid star/unstar events.