from config import *
from lastfm_helpers import lf_request, recent_artists
from lidarr_helpers import lidarr_api_add_artist
from musicbrainz_helpers import load_cache, save_cache
import time, logging

logging.basicConfig(level=logging.INFO)
log = logging.getLogger("DiscoveryLidarr")

def sync():
    start = time.time()
    cache = load_cache()
    added_artists = set(cache.get("added_artists", []))
    similar_cache = cache.setdefault("similar_cache", {})

    recent = recent_artists()
    log.info(f"🎧 Analyserar {len(recent)} senaste artister från Last.fm")

    new = 0
    for name, mbid in recent:
        if not mbid or mbid in added_artists:
            continue

        if mbid in similar_cache:
            sims = similar_cache[mbid]["data"]
        else:
            js = lf_request("artist.getSimilar", mbid=mbid, limit=MAX_SIMILAR_PER_ART)
            sims = js.get("similarartists", {}).get("artist", []) if js else []
            similar_cache[mbid] = {"ts": time.time(), "data": sims}
            save_cache(cache)

        for sim in sims:
            sid = sim.get("mbid")
            match = float(sim.get("match", 0))
            if not sid or sid in added_artists or match < SIMILAR_MATCH_MIN:
                continue

            log.info(f"✨ Ny artist: {sim.get('name')} (match {match:.2f})")
            if lidarr_api_add_artist(sid):
                added_artists.add(sid)
                new += 1
                cache["added_artists"] = list(added_artists)
                save_cache(cache)

    log.info(f"✅ Klar! {new} nya artister tillagda på {((time.time()-start)/60):.1f} min")

if __name__ == "__main__":
    sync()