#!/usr/bin/env python3
"""
清空 projects 与 operation_logs 表（保留 users）。
用法：cd backend && PYTHONPATH=src python3 scripts/clean_db.py
"""
import sys
from pathlib import Path

_backend = Path(__file__).resolve().parent.parent
if str(_backend) not in sys.path:
    sys.path.insert(0, str(_backend))

from src.database import get_connection

def main():
    with get_connection() as conn:
        cur = conn.cursor()
        cur.execute("SET FOREIGN_KEY_CHECKS = 0")
        cur.execute("TRUNCATE TABLE operation_logs")
        cur.execute("TRUNCATE TABLE projects")
        cur.execute("SET FOREIGN_KEY_CHECKS = 1")
        cur.close()
    print("已清空 operation_logs、projects 表。")

if __name__ == "__main__":
    main()