"""Database initialization"""

from flask_sqlalchemy import SQLAlchemy
from flask_migrate import Migrate

db = SQLAlchemy()
migrate = Migrate()

def init_db(app):
    """Initialize database with app"""
    db.init_app(app)
    migrate.init_app(app, db)
    
    # Create tables
    with app.app_context():
        db.create_all()
        
        # Create default admin user if not exists
        from database.models import User
        admin = User.query.filter_by(username='admin').first()
        if not admin:
            from config.settings import DEFAULT_ADMIN_USERNAME, DEFAULT_ADMIN_PASSWORD
            admin = User(username=DEFAULT_ADMIN_USERNAME)
            admin.set_password(DEFAULT_ADMIN_PASSWORD)
            db.session.add(admin)
            db.session.commit()
            print(f"[DB] Created default admin user: {DEFAULT_ADMIN_USERNAME}", flush=True)