using COSXML;
using COSXML.Auth;
using COSXML.Model.Object;

using Infrastructure;

using System;
using System.IO;
using System.Net;

namespace ZR.Common
{
    public class TencentCosHelper
    {
        static string secretId = AppSettings.GetConfig("TENCENT_COS:SECRET_ID");
        static string secretKey = AppSettings.GetConfig("TENCENT_COS:SECRET_KEY");
        static string region = AppSettings.GetConfig("TENCENT_COS:REGION");
        static string bucketName1 = AppSettings.GetConfig("TENCENT_COS:BUCKET_NAME");
        static string appId = AppSettings.GetConfig("TENCENT_COS:APPID");


        /// <summary>
        /// 获取COS客户端
        /// </summary>
        /// <returns></returns>
        private static CosXmlServer GetCosXmlServer()
        {
            var config = new CosXmlConfig.Builder()
                .SetRegion(region)
                .Build();

            var qCloudCredentialProvider = new DefaultQCloudCredentialProvider(secretId, secretKey, 600);
            return new CosXmlServer(config, qCloudCredentialProvider);
        }

        /// <summary>
        /// 上传到腾讯云COS
        /// </summary>
        /// <param name="filestreams">文件流</param>
        /// <param name="dirPath">存储路径 eg： upload/2020/01/01/xxx.png</param>
        /// <param name="bucketName">存储桶 如果为空默认取配置文件</param>
        /// <returns></returns>
        public static HttpStatusCode PutObjectFromFile(Stream filestreams, string dirPath, string bucketName = "")
        {
            if (string.IsNullOrEmpty(bucketName)) { bucketName = bucketName1; }
            try
            {
                dirPath = dirPath.Replace("\\", "/");

                var cosXml = GetCosXmlServer();

                var request = new PutObjectRequest(bucketName, dirPath, filestreams);
                request.APPID = appId;
                var result = cosXml.PutObject(request);

                return result.IsSuccessful() ? HttpStatusCode.OK : HttpStatusCode.BadRequest;
            }
            catch (COSXML.CosException.CosClientException ex)
            {
                Console.WriteLine("Failed with CosClientException: {0}", ex.Message);
            }
            catch (COSXML.CosException.CosServerException ex)
            {
                Console.WriteLine("Failed with CosServerException. ErrorCode: {0}; ErrorMessage: {1}; RequestID: {2}",
                  ex.errorCode, ex.Message, ex.requestId);
            }
            catch (Exception ex)
            {
                Console.WriteLine("Failed with error info: {0}", ex.Message);
            }
            return HttpStatusCode.BadRequest;
        }

        /// <summary>
        /// 删除资源
        /// </summary>
        /// <param name="dirPath">文件路径</param>
        /// <param name="bucketName">存储桶 如果为空默认取配置文件</param>
        /// <returns></returns>
        public static HttpStatusCode DeleteFile(string dirPath, string bucketName = "")
        {
            if (string.IsNullOrEmpty(bucketName)) { bucketName = bucketName1; }
            try
            {
                dirPath = dirPath.Replace("\\", "/");

                var cosXml = GetCosXmlServer();
                var request = new DeleteObjectRequest(bucketName, dirPath);
                var result = cosXml.DeleteObject(request);

                return result.IsSuccessful() ? HttpStatusCode.OK : HttpStatusCode.BadRequest;
            }
            catch (COSXML.CosException.CosClientException ex)
            {
                Console.WriteLine("Failed with CosClientException: {0}", ex.Message);
            }
            catch (COSXML.CosException.CosServerException ex)
            {
                Console.WriteLine("Failed with CosServerException. ErrorCode: {0}; ErrorMessage: {1}; RequestID: {2}",
                  ex.errorCode, ex.errorMessage, ex.requestId);
            }
            catch (Exception ex)
            {
                Console.WriteLine("Failed with error info: {0}", ex.Message);
            }
            return HttpStatusCode.BadRequest;
        }
    }
}