"""
Import ONLY songs and setlists into existing demo database
Uses correct API field mappings based on actual El Goose API response
"""
import requests
from datetime import datetime
from sqlmodel import Session, select
from database import engine
from models import Vertical, Song, Performance, Show

BASE_URL = "https://elgoose.net/api/v2"
ARTIST_ID = 1  # Goose

def fetch_json(endpoint, params=None):
    """Fetch JSON from El Goose API with error handling"""
    url = f"{BASE_URL}/{endpoint}.json"
    try:
        response = requests.get(url, params=params)
        response.raise_for_status()
        data = response.json()
        
        if data.get('error') == 1 or data.get('error') == True:
            print(f"❌ API Error: {data.get('error_message')}")
            return None
            
        return data.get('data', [])
    except Exception as e:
        print(f"❌ Failed to fetch {endpoint}: {e}")
        return None

def import_songs(session, vertical_id):
    """Import all songs using correct API field names"""
    print("\n🎵 Importing songs...")
    songs_data = fetch_json("songs")
    if not songs_data:
        print("❌ No song data received")
        return {}
    
    song_map = {}
    for s in songs_data:
        # Check if song exists
        existing = session.exec(
            select(Song).where(
                Song.title == s['name'],
                Song.vertical_id == vertical_id
            )
        ).first()
        
        if existing:
            song_map[s['id']] = existing.id
        else:
            song = Song(
                title=s['name'],
                original_artist=s.get('original_artist'),
                vertical_id=vertical_id
            )
            session.add(song)
            session.commit()
            session.refresh(song)
            song_map[s['id']] = song.id
        
        if len(song_map) % 100 == 0:
            print(f"  Progress: {len(song_map)} songs...")
    
    print(f"✓ Imported {len(song_map)} songs")
    return song_map

def import_setlists(session, vertical_id, song_map):
    """Import setlists for Goose shows only"""
    print("\n📋 Importing setlists...")
    
    # Get all our shows from the database
    shows = session.exec(
        select(Show).where(Show.vertical_id == vertical_id)
    ).all()
    
    print(f"  Found {len(shows)} shows in database")
    
    # Fetch ALL setlists and filter for Goose
    print("  Fetching setlists from API...")
    setlists_data = fetch_json("setlists")
    
    if not setlists_data:
        print("❌ No setlist data found")
        return
    
    print(f"  Received {len(setlists_data)} total performances")
    
    # Create a map of El Goose show_id to our show id
    show_map = {}
    for show in shows:
        # We need to find the matching El Goose show by date
        # Since we imported shows with their original show_id stored... wait, we didn't
        # We need to match by date instead
        pass
    
    # Actually, let's fetch shows again to get the mapping
    shows_data = fetch_json("shows")
    if shows_data:
        goose_shows = [s for s in shows_data if s.get('artist_id') == ARTIST_ID]
        print(f"  Found {len(goose_shows)} Goose shows in API")
        
        # Build mapping: El Goose show_id -> our database show id
        for eg_show in goose_shows:
            eg_date = datetime.strptime(eg_show['showdate'], '%Y-%m-%d').date()
            # Find matching show in our DB by date
            db_show = session.exec(
                select(Show).where(
                    Show.vertical_id == vertical_id,
                    Show.date >= datetime.combine(eg_date, datetime.min.time()),
                    Show.date < datetime.combine(eg_date, datetime.max.time())
                )
            ).first()
            
            if db_show:
                show_map[eg_show['show_id']] = db_show.id
    
    print(f"  Mapped {len(show_map)} shows")
    
    # Now import performances
    performance_count = 0
    skipped = 0
    
    for perf_data in setlists_data:
        # Only import if this is a Goose show
        our_show_id = show_map.get(perf_data.get('show_id'))
        if not our_show_id:
            skipped += 1
            continue
        
        our_song_id = song_map.get(perf_data.get('song_id'))
        if not our_song_id:
            # Song not found - might be from another artist
            skipped += 1
            continue
        
        # Check if performance already exists
        existing = session.exec(
            select(Performance).where(
                Performance.show_id == our_show_id,
                Performance.song_id == our_song_id,
                Performance.position == perf_data.get('position', 0)
            )
        ).first()
        
        if existing:
            continue
        
        perf = Performance(
            show_id=our_show_id,
            song_id=our_song_id,
            position=perf_data.get('position', 0),
            set_name=perf_data.get('set'),
            segue=bool(perf_data.get('segue', 0)),
            notes=perf_data.get('notes')
        )
        session.add(perf)
        performance_count += 1
        
        if performance_count % 100 == 0:
            session.commit()
            print(f"  Progress: {performance_count} performances...")
    
    session.commit()
    print(f"✓ Imported {performance_count} performances (skipped {skipped} non-Goose)")

def main():
    print("="*60)
    print("EL GOOSE SONGS & SETLISTS IMPORTER")
    print("="*60)
    
    with Session(engine) as session:
        # Get existing Goose vertical
        vertical = session.exec(
            select(Vertical).where(Vertical.slug == "goose")
        ).first()
        
        if not vertical:
            print("❌ Goose vertical not found! Run main import first.")
            return
        
        print(f"✓ Found Goose vertical (ID: {vertical.id})")
        
        # Import songs and setlists
        song_map = import_songs(session, vertical.id)
        import_setlists(session, vertical.id, song_map)
        
        print("\n" + "="*60)
        print("✓ IMPORT COMPLETE!")
        print("="*60)
        print(f"\nImported:")
        print(f"  • {len(song_map)} songs")
        print(f"\nDemo environment is now fully populated!")
        print(f"\nStart demo servers:")
        print(f"  Backend:  DATABASE_URL='sqlite:///./elmeg-demo.db' uvicorn main:app --reload --port 8001")
        print(f"  Frontend: NEXT_PUBLIC_API_URL=http://localhost:8001 npm run dev -- -p 3001")

if __name__ == "__main__":
    main()