"""MySQL数据库初始化脚本

创建数据库和表结构
"""
import sys
sys.path.insert(0, '.')

from sqlalchemy import create_engine, text
from app.core.config import get_config
from app.repositories.database import Base

def init_mysql():
    """初始化MySQL数据库"""
    config = get_config()
    db_config = config.database
    
    # 连接MySQL服务器（不指定数据库）
    server_url = f"mysql+pymysql://{db_config.user}:{db_config.password}@{db_config.host}:{db_config.port}"
    
    print(f"Connecting to MySQL server: {db_config.host}:{db_config.port}")
    engine = create_engine(server_url)
    
    # 创建数据库
    with engine.connect() as conn:
        conn.execute(text(f"CREATE DATABASE IF NOT EXISTS {db_config.database} CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci"))
        print(f"Database '{db_config.database}' created or exists")
    
    # 连接到新创建的数据库
    db_url = f"{server_url}/{db_config.database}"
    db_engine = create_engine(db_url)
    
    # 创建所有表
    print("Creating tables...")
    Base.metadata.create_all(bind=db_engine)
    print("Tables created successfully!")
    
    # 显示创建的表
    with db_engine.connect() as conn:
        result = conn.execute(text("SHOW TABLES"))
        tables = [row[0] for row in result]
        print(f"\nTables in database '{db_config.database}':")
        for table in tables:
            print(f"  - {table}")

if __name__ == "__main__":
    try:
        init_mysql()
        print("\nMySQL database initialization completed!")
    except Exception as e:
        print(f"Error: {e}")
        import traceback
        traceback.print_exc()
        sys.exit(1)