#!/usr/bin/env python3
"""
Database initialization script

Creates all tables in the PostgreSQL database.

Usage:
    python scripts/init_db.py
"""
import asyncio
import os
import sys
from pathlib import Path

# Scripts live in <project>/scripts; app code and .env live in <project>/backend
BACKEND_DIR = Path(__file__).resolve().parent.parent / "backend"
sys.path.insert(0, str(BACKEND_DIR))
os.chdir(BACKEND_DIR)

from app.database import init_db, close_db, engine
from app.config import settings
from sqlalchemy import text
import logging

logging.basicConfig(
    level=logging.INFO,
    format="%(asctime)s - %(name)s - %(levelname)s - %(message)s"
)
logger = logging.getLogger(__name__)


async def main():
    """Initialize database"""
    logger.info("=" * 60)
    logger.info("Cosmo Database Initialization")
    logger.info("=" * 60)
    logger.info(f"Database URL: {settings.database_url.split('@')[1]}")  # Hide password
    logger.info("=" * 60)

    try:
        # Test database connection
        logger.info("Testing database connection...")
        async with engine.begin() as conn:
            await conn.execute(text("SELECT 1"))
        logger.info("✓ Database connection successful")

        # Create all tables
        logger.info("Creating database tables...")
        await init_db()
        logger.info("✓ All tables created successfully")

        # Display created tables
        async with engine.connect() as conn:
            result = await conn.execute(text("""
                SELECT table_name
                FROM information_schema.tables
                WHERE table_schema = 'public'
                ORDER BY table_name
            """))
            tables = [row[0] for row in result]

        logger.info(f"\nCreated {len(tables)} tables:")
        for table in tables:
            logger.info(f"  - {table}")

        logger.info("\n" + "=" * 60)
        logger.info("Database initialization completed successfully!")
        logger.info("=" * 60)

    except Exception as e:
        logger.error(f"\n✗ Database initialization failed: {e}")
        logger.error("\nPlease ensure:")
        logger.error("  1. PostgreSQL is running")
        logger.error("  2. Database 'cosmo_db' exists")
        logger.error("  3. Database credentials in .env are correct")
        sys.exit(1)
    finally:
        await close_db()


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