#!/usr/bin/env python3
"""
验证MySQL配置脚本

检查：
1. .env文件是否存在
2. DATABASE_URL配置是否正确
3. MySQL连接是否正常
4. 数据库表结构是否正确
"""

import os
import sys

sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))

def check_env_file():
    """检查.env文件"""
    print("\n" + "=" * 60)
    print("检查.env文件")
    print("=" * 60)

    env_file = '.env'
    if not os.path.exists(env_file):
        print(f"❌ {env_file} 文件不存在")
        print(f"   请确保在项目根目录创建 {env_file} 文件")
        return None

    print(f"✅ {env_file} 文件存在")

    # 读取DATABASE_URL
    db_url = None
    with open(env_file, 'r', encoding='utf-8') as f:
        for line in f:
            line = line.strip()
            if line.startswith('DATABASE_URL='):
                db_url = line.split('=', 1)[1].strip()
                print(f"✅ DATABASE_URL已配置")
                print(f"   {db_url}")
                break

    if not db_url:
        print("❌ 未找到DATABASE_URL配置")
        print("   请在.env文件中添加: DATABASE_URL=mysql+pymysql://...")

    return db_url

def check_dependencies():
    """检查依赖"""
    print("\n" + "=" * 60)
    print("检查依赖")
    print("=" * 60)

    missing = []

    try:
        import pymysql
        print(f"✅ PyMySQL (版本: {pymysql.__version__})")
    except ImportError:
        print("❌ PyMySQL 未安装")
        missing.append("PyMySQL")

    try:
        import dotenv
        print(f"✅ python-dotenv (版本: {dotenv.__version__})")
    except ImportError:
        print("❌ python-dotenv 未安装")
        missing.append("python-dotenv")

    if missing:
        print(f"\n⚠️  请安装缺失的依赖:")
        print(f"   pip install {' '.join(missing)}")
        return False

    return True

def test_database():
    """测试数据库"""
    print("\n" + "=" * 60)
    print("测试数据库连接")
    print("=" * 60)

    try:
        from app import create_app, db

        app = create_app()

        with app.app_context():
            # 尝试连接
            print("🔄 正在连接数据库...")
            db.create_all()
            print("✅ 数据库连接成功！")

            # 显示数据库信息
            print(f"\n数据库信息:")
            print(f"   URI: {app.config['SQLALCHEMY_DATABASE_URI']}")

            # 检查表
            print(f"\n检查数据库表:")
            from sqlalchemy import inspect
            inspector = inspect(db.engine)
            tables = inspector.get_table_names()
            print(f"   数据库表数量: {len(tables)}")
            for table in tables:
                print(f"   - {table}")

            return True

    except Exception as e:
        print(f"❌ 数据库连接失败")
        print(f"   错误: {e}")
        print(f"\n请检查:")
        print(f"   1. MySQL服务是否运行")
        print(f"   2. .env文件中的DATABASE_URL是否正确")
        print(f"   3. 用户名和密码是否正确")
        print(f"   4. 数据库是否存在")
        return False

def check_admin_model():
    """检查Admin模型"""
    print("\n" + "=" * 60)
    print("检查Admin模型")
    print("=" * 60)

    try:
        from app import create_app
        from app.models import Admin

        app = create_app()

        with app.app_context():
            # 检查字段
            columns = [c.name for c in Admin.__table__.columns]
            print(f"Admin表字段 ({len(columns)}个):")
            for col in sorted(columns):
                print(f"   - {col}")

            # 检查新字段
            missing = []
            if 'is_deleted' not in columns:
                missing.append('is_deleted')
            if 'delete_time' not in columns:
                missing.append('delete_time')

            if missing:
                print(f"\n⚠️  缺少字段: {', '.join(missing)}")
                print(f"   请运行: python setup_mysql.py")
                return False

            print("\n✅ Admin模型结构正确")
            return True

    except Exception as e:
        print(f"❌ 检查Admin模型失败: {e}")
        return False

def show_config_example():
    """显示配置示例"""
    print("\n" + "=" * 60)
    print("配置示例")
    print("=" * 60)

    print("\n.env文件示例:")
    print("-" * 60)
    print("""# 环境配置
FLASK_ENV=development
FLASK_DEBUG=True

# 数据库配置 - MySQL
DATABASE_URL=mysql+pymysql://root:你的密码@localhost/kamaxitong

# 安全配置
SECRET_KEY=taiyi1224
AUTH_SECRET_KEY=taiyi1224
""")
    print("-" * 60)

def main():
    """主函数"""
    print("\n" + "=" * 60)
    print("🔍 MySQL配置验证工具")
    print("=" * 60)

    success = True

    # 1. 检查.env文件
    db_url = check_env_file()
    if not db_url:
        show_config_example()
        return 1

    # 2. 检查依赖
    if not check_dependencies():
        success = False

    # 3. 测试数据库
    if success and not test_database():
        success = False

    # 4. 检查Admin模型
    if success and not check_admin_model():
        success = False

    # 总结
    print("\n" + "=" * 60)
    if success:
        print("✅ MySQL配置验证通过！")
        print("=" * 60)
        print("\n📖 下一步:")
        print("   python run.py")
        print("\n🔑 默认管理员:")
        print("   用户名: admin")
        print("   密码: admin123456")
        return 0
    else:
        print("❌ MySQL配置验证失败")
        print("=" * 60)
        print("\n💡 尝试自动修复:")
        print("   python setup_mysql.py")
        return 1

if __name__ == '__main__':
    sys.exit(main())