"""
数据库连接配置
"""
from sqlalchemy import create_engine
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker
import os

# 数据库文件路径
DATABASE_PATH = os.path.join(os.path.dirname(__file__), "fumamx_crm.db")
SQLALCHEMY_DATABASE_URL = f"sqlite:///{DATABASE_PATH}"

engine = create_engine(
    SQLALCHEMY_DATABASE_URL, 
    connect_args={"check_same_thread": False}
)
SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)

Base = declarative_base()


def get_db():
    """获取数据库会话"""
    db = SessionLocal()
    try:
        yield db
    finally:
        db.close()


def init_db():
    """初始化数据库表"""
    Base.metadata.create_all(bind=engine)