#!/usr/bin/env python3
"""Initialize database metadata for PostgreSQL environments."""
import asyncio
import sys
from pathlib import Path

# Add parent directory to path for imports
sys.path.insert(0, str(Path(__file__).parent.parent))

from sqlalchemy.ext.asyncio import create_async_engine, AsyncSession
from sqlalchemy.orm import sessionmaker
from backend.app.models import Base
from backend.app.database import DATABASE_URL

from sqlalchemy import text

async def init_database():
    """Create all tables that don't exist yet."""
    print(f"Using database: {DATABASE_URL}")

    engine = create_async_engine(DATABASE_URL, echo=True)
    async_session = sessionmaker(engine, class_=AsyncSession, expire_on_commit=False)

    async with engine.begin() as conn:
        # Create all tables that don't exist
        await conn.run_sync(Base.metadata.create_all)
        print("✅ All tables created successfully")

    # Verify tables were created
    async with engine.begin() as conn:
        result = await conn.run_sync(
            lambda sync_conn: sync_conn.execute(
                text(
                    """
                    SELECT tablename
                    FROM pg_catalog.pg_tables
                    WHERE schemaname = 'public'
                    ORDER BY tablename
                    """
                )
            ).fetchall()
        )
        tables = [row[0] for row in result]
        print(f"📊 Tables in database: {', '.join(sorted(tables))}")

    await engine.dispose()

if __name__ == "__main__":
    asyncio.run(init_database())