"""
测试腾讯云COS连接 - 独立测试脚本
"""
import sys
import os
from datetime import datetime

# 添加项目根目录到Python路径
sys.path.append(os.path.dirname(os.path.abspath(__file__)))

# 直接导入COS相关模块，避免导入Flask应用
from qcloud_cos import CosConfig, CosS3Client
from qcloud_cos.cos_exception import CosClientError, CosServiceError
from config.cos_config import COSConfig

class COSTestClient:
    """COS测试客户端"""

    def __init__(self):
        """初始化COS客户端"""
        try:
            # 配置COS
            config = CosConfig(
                Region=COSConfig.REGION,
                SecretId=COSConfig.SECRET_ID,
                SecretKey=COSConfig.SECRET_KEY,
                Token=None,
                Scheme='https'
            )

            # 创建客户端
            self.client = CosS3Client(config)
            self.bucket = COSConfig.BUCKET_NAME

            print("✅ COS客户端初始化成功")

        except Exception as e:
            print(f"❌ COS客户端初始化失败: {str(e)}")
            raise

    def test_connection(self):
        """测试COS连接"""
        try:
            # 尝试列出存储桶
            response = self.client.list_objects(
                Bucket=self.bucket,
                MaxKeys=1
            )

            return {
                'success': True,
                'message': 'COS连接测试成功',
                'bucket': self.bucket,
                'region': COSConfig.REGION
            }

        except Exception as e:
            return {
                'success': False,
                'message': f'COS连接测试失败: {str(e)}',
                'bucket': self.bucket,
                'region': COSConfig.REGION
            }

    def list_files(self, prefix='', max_keys=10):
        """列出文件"""
        try:
            response = self.client.list_objects(
                Bucket=self.bucket,
                Prefix=prefix,
                MaxKeys=max_keys
            )

            files = []
            if 'Contents' in response:
                for obj in response['Contents']:
                    files.append({
                        'key': obj['Key'],
                        'size': obj['Size'],
                        'last_modified': obj['LastModified'],
                        'url': COSConfig.get_full_url(obj['Key'])
                    })

            return files

        except Exception as e:
            print(f"❌ 列出文件失败: {str(e)}")
            return []

    def upload_test_file(self):
        """上传测试文件"""
        test_content = f"COS上传测试文件\n创建时间: {datetime.now()}\n测试内容: Hello COS!"
        test_file_key = f"test/test_upload_{datetime.now().strftime('%Y%m%d_%H%M%S')}.txt"

        try:
            # 上传文件
            response = self.client.put_object(
                Bucket=self.bucket,
                Body=test_content.encode('utf-8'),
                Key=test_file_key,
                StorageClass='STANDARD'
            )

            file_url = COSConfig.get_full_url(test_file_key)

            return {
                'success': True,
                'file_key': test_file_key,
                'url': file_url,
                'etag': response['ETag']
            }

        except Exception as e:
            return {
                'success': False,
                'error': str(e)
            }

    def delete_file(self, file_key):
        """删除文件"""
        try:
            response = self.client.delete_object(
                Bucket=self.bucket,
                Key=file_key
            )

            return {'success': True}

        except Exception as e:
            return {
                'success': False,
                'error': str(e)
            }

def main():
    """主测试函数"""
    print("=" * 60)
    print("🚀 腾讯云COS连接测试")
    print("=" * 60)

    # 显示配置信息
    print(f"📦 存储桶名称: {COSConfig.BUCKET_NAME}")
    print(f"🌍 所属地域: {COSConfig.REGION}")
    print(f"🔗 访问域名: {COSConfig.BUCKET_DOMAIN}")
    print(f"🔑 SecretId: {COSConfig.SECRET_ID[:8]}***")
    print("-" * 60)

    try:
        # 初始化测试客户端
        cos_test = COSTestClient()

        # 1. 测试连接
        print("1️⃣ 测试COS连接...")
        result = cos_test.test_connection()

        if result['success']:
            print("✅ COS连接测试成功！")
            print(f"   存储桶: {result['bucket']}")
            print(f"   地域: {result['region']}")
        else:
            print("❌ COS连接测试失败！")
            print(f"   错误信息: {result['message']}")
            return False

        print("-" * 60)

        # 2. 测试文件列表
        print("2️⃣ 测试文件列表功能...")
        files = cos_test.list_files(max_keys=5)
        print(f"✅ 文件列表获取成功，共找到 {len(files)} 个文件")

        if files:
            print("📁 最近的文件:")
            for i, file_info in enumerate(files[:3], 1):
                size_mb = file_info['size'] / 1024 / 1024
                print(f"   {i}. {file_info['key']}")
                print(f"      大小: {size_mb:.2f}MB")
                print(f"      修改时间: {file_info['last_modified']}")
        else:
            print("📭 存储桶为空")

        print("-" * 60)

        # 3. 测试文件上传
        print("3️⃣ 测试文件上传功能...")
        upload_result = cos_test.upload_test_file()

        if upload_result['success']:
            print("✅ 文件上传测试成功！")
            print(f"   文件路径: {upload_result['file_key']}")
            print(f"   访问URL: {upload_result['url']}")
            print(f"   ETag: {upload_result['etag']}")

            # 4. 测试文件删除
            print("-" * 60)
            print("4️⃣ 测试文件删除功能...")
            delete_result = cos_test.delete_file(upload_result['file_key'])

            if delete_result['success']:
                print("✅ 文件删除测试成功！")
            else:
                print(f"❌ 文件删除测试失败: {delete_result['error']}")

        else:
            print(f"❌ 文件上传测试失败: {upload_result['error']}")

        print("=" * 60)
        print("🎉 COS功能测试完成！")
        print("=" * 60)

        return True

    except Exception as e:
        print(f"❌ 测试过程中发生异常: {str(e)}")
        return False

if __name__ == '__main__':
    main()