// rcp通信工具
import { BusinessError } from '@kit.BasicServicesKit';
import { buffer, HashMap, JSON, util, xml } from '@kit.ArkTS';
import { FileInfo } from '../../viewmodel/FileInfo';
import { rcp } from '@kit.RemoteCommunicationKit';
import { BackgroundManager } from './BackgroundManager';
import FileManager, { merge2paths } from './FileManager';

const UtilName = "heanup RcpSocket"

export class RcpSocket {
  private static instance: RcpSocket;
  public ErrorMessage: string | BusinessError = ''
  public filesInfo: FileInfo[] = []
  private backgroundManager = BackgroundManager.getInstance()

  //private rcpSession : rcp.Session | null = null

  constructor() {
    console.info(UtilName, 'testTag', 'RcpSocketUtil单例已创建')
  }

  private encodeUrlPath(path?: string): string {
    if (!path || path.length === 0) {
      return '/';
    }
    let normalized = path.replace(/\\/g, '/');
    if (!normalized.startsWith('/')) {
      normalized = `/${normalized}`;
    }
    normalized = normalized.replace(/\/+/g, '/');
    const segments = normalized.split('/').map((segment) => {
      if (!segment || segment.length === 0) {
        return '';
      }
      let decoded = segment;
      try {
        decoded = decodeURIComponent(segment);
      } catch (_err) {
        // ignore decode errors and keep raw segment
      }
      return encodeURIComponent(decoded);
    });
    let encodedPath = segments.join('/');
    if (!encodedPath.startsWith('/')) {
      encodedPath = `/${encodedPath}`;
    }
    if (encodedPath.length === 0) {
      encodedPath = '/';
    }
    return encodedPath;
  }

  private buildRequestUrl(host: string, port: number, path: string, enableHttps: boolean): string {
    const protocol = enableHttps ? "https" : "http";
    const encodedPath = this.encodeUrlPath(path);
    return `${protocol}://${host}:${port}${encodedPath}`;
  }

  static getInstance(): RcpSocket {
    if (!RcpSocket.instance) {
      RcpSocket.instance = new RcpSocket();
    }
    return RcpSocket.instance;
  }

  public RcpSendHead(host: string, port: number, account: string, password: string, path: string,
    enableHttps: boolean): Promise<number> {
    return new Promise<number>((resolve, reject) => {
      const url = this.buildRequestUrl(host, port, path, enableHttps);
      const timeoutDuration: number = 10000;
      const speedThreshold: number = 5000; // 设置速度测试的时间阈值
      console.info(UtilName, 'testTag', '发送HEAD的url:' + url)
      // 创建 RCP 会话配置
      let secCfg: rcp.SecurityConfiguration = { remoteValidation: 'skip' }
      let reqCfg: rcp.Configuration = {
        security: secCfg,
        transfer: {
          timeout: {
            connectMs: timeoutDuration
          }
        }
      }
      let sessionCfg: rcp.SessionConfiguration = { requestConfiguration: reqCfg }
      let rcpSession = rcp.createSession(sessionCfg);
      // 构造基本认证头部
      const encodedCredentials = buffer
        .from(`${account}:${password}`)
        .toString("base64");

      const headers: rcp.RequestHeaders = {
        Depth: "1",
        "Content-Type": "application/xml",
        Accept: "text/xml",
        Authorization: `Basic ${encodedCredentials}`,
      };
      // 创建请求对象
      const req = new rcp.Request(url, "HEAD", headers);
      const startTime = Date.now();
      // 连接
      try {
        rcpSession
          .fetch(req)
          .then((response) => {
            const endTime = Date.now();
            const elapsedTime = endTime - startTime;
            // 如果响应时间超过阈值，视为测速过慢
            if (elapsedTime > speedThreshold) {
              console.error(UtilName, "testTag", `${host}Response time too slow: ${elapsedTime}ms`);
              rcpSession?.close()
              reject("Test speed too slow");
            } else {
              console.info(UtilName, "testTag", host + " Connect and test speed succeed");
              const contentLength = response.headers['content-length'] || '0'
              let fileSize = 0
              if (contentLength) {
                if (Array.isArray(contentLength)) {
                  const values = contentLength
                    .map((value) => parseInt(value, 10))
                    .filter((value) => !isNaN(value));
                  if (values.length > 0) {
                    // 取最大值
                    fileSize = Math.max(...values);
                  }
                } else {
                  fileSize = parseInt(contentLength, 10);
                }
              } else {
                console.info(UtilName, 'testTag', 'Content-Length 头未找到');
              }
              rcpSession?.close();
              resolve(fileSize);
            }
          })
          .catch((err: BusinessError) => {
            console.error(UtilName, "testTag", `${host}请求失败：错误码 ${err.code}，错误信息：${JSON.stringify(err)}`);
            rcpSession?.close()
            reject(err);
          });
      } catch (e) {
        console.error(UtilName, 'testTag', '发起连接失败', JSON.stringify(e))
        reject(e)
      }
    });
  }

  public RcpSendDelete(host: string, port: number, account: string, password: string, path: string,
    enableHttps: boolean): Promise<void> {
    return new Promise<void>((resolve, reject) => {
      const url = this.buildRequestUrl(host, port, path, enableHttps);
      const timeoutDuration: number = 10000;
      console.info(UtilName, 'testTag', '发送Delete的url:' + url)
      // 创建 RCP 会话配置
      let response = ""
      const customHttpEventsHandler: rcp.HttpEventsHandler = {
        onDataReceive: (incomingData: ArrayBuffer) => {
          response += this.buf2String(incomingData)
        },
        onDataEnd: () => {
        },
      };
      const tracingConfig: rcp.TracingConfiguration = {
        verbose: true,
        infoToCollect: {
          textual: true,
          incomingData: true,
          outgoingData: true,
        },
        collectTimeInfo: true,
        httpEventsHandler: customHttpEventsHandler
      };
      let secCfg: rcp.SecurityConfiguration = { remoteValidation: 'skip' }
      let reqCfg: rcp.Configuration = {
        security: secCfg,
        tracing: tracingConfig,
        transfer: {
          timeout: {
            connectMs: timeoutDuration
          }
        }
      }
      let sessionCfg: rcp.SessionConfiguration = { requestConfiguration: reqCfg }
      let rcpSession = rcp.createSession(sessionCfg);
      // 构造基本认证头部
      const encodedCredentials = buffer
        .from(`${account}:${password}`)
        .toString("base64");

      const headers: rcp.RequestHeaders = {
        Authorization: `Basic ${encodedCredentials}`,
      };
      // 创建请求对象
      const req = new rcp.Request(url, "DELETE", headers);
      // 连接
      rcpSession
        .fetch(req)
        .then(() => {
          console.info(UtilName, 'testTag', '执行删除的响应', JSON.stringify(response))
          rcpSession.close()
          resolve()
        })
        .catch((err: BusinessError) => {
          console.error(UtilName, "testTag", `${host}请求失败：错误码 ${err.code}，错误信息：${JSON.stringify(err)}`);
          rcpSession?.close()
          reject(err);
        });
    });
  }

  public RcpSendMove(host: string, port: number, account: string, password: string, path: string, enableHttps: boolean,
    newPath: string): Promise<void> {
    return new Promise<void>((resolve, reject) => {
      const url = this.buildRequestUrl(host, port, path, enableHttps);
      const destinationUrl = this.buildRequestUrl(host, port, newPath, enableHttps)
      const timeoutDuration: number = 10000;
      console.info(UtilName, 'testTag', '发送MOVE的url:' + url)
      // 创建 RCP 会话配置
      let response = ""
      const customHttpEventsHandler: rcp.HttpEventsHandler = {
        onDataReceive: (incomingData: ArrayBuffer) => {
          response += this.buf2String(incomingData)
        },
        onDataEnd: () => {
        },
      };
      const tracingConfig: rcp.TracingConfiguration = {
        verbose: true,
        infoToCollect: {
          textual: true,
          incomingData: true,
          outgoingData: true,
        },
        collectTimeInfo: true,
        httpEventsHandler: customHttpEventsHandler
      };
      let secCfg: rcp.SecurityConfiguration = { remoteValidation: 'skip' }
      let reqCfg: rcp.Configuration = {
        security: secCfg,
        tracing: tracingConfig,
        transfer: {
          timeout: {
            connectMs: timeoutDuration
          }
        }
      }
      let sessionCfg: rcp.SessionConfiguration = { requestConfiguration: reqCfg }
      let rcpSession = rcp.createSession(sessionCfg);
      // 构造基本认证头部
      const encodedCredentials = buffer
        .from(`${account}:${password}`)
        .toString("base64");

      const headers: rcp.RequestHeaders = {
        Authorization: `Basic ${encodedCredentials}`,
        Destination: destinationUrl
      };
      // 创建请求对象
      const req = new rcp.Request(url, "MOVE", headers);
      // 连接
      rcpSession
        .fetch(req)
        .then(() => {
          console.info(UtilName, 'testTag', 'move的响应结果', JSON.stringify(response))
          rcpSession.close()
          resolve()
        })
        .catch((err: BusinessError) => {
          console.error(UtilName, "testTag", `${host}请求失败：错误码 ${err.code}，错误信息：${JSON.stringify(err)}`);
          rcpSession.close()
          reject(err);
        });
    });
  }

  // rcp方法
  public async RcpSendPropFind(
    host: string,
    port: number,
    account: string,
    password: string,
    path: string,
    enableHttps: boolean
  ): Promise<FileInfo[]> {
    return new Promise(async (resolve, reject) => {
      const url = this.buildRequestUrl(host, port, path, enableHttps);
      const timeoutDuration: number = 10000;
      console.info(UtilName, 'testTag', '发送PROPFIND请求的url:' + url)
      // 创建 RCP 会话配置
      let response: string = ''
      const customHttpEventsHandler: rcp.HttpEventsHandler = {
        onDataReceive: async (incomingData: ArrayBuffer) => {
          response += this.buf2String(incomingData)
          await this.backgroundManager.updateDataTransferContinuousTask()
        },
        onDataEnd: () => {
        },
      };
      const tracingConfig: rcp.TracingConfiguration = {
        verbose: true,
        infoToCollect: {
          textual: true,
          incomingData: true,
          outgoingData: true,
        },
        collectTimeInfo: true,
        httpEventsHandler: customHttpEventsHandler
      };
      let secCfg: rcp.SecurityConfiguration = { remoteValidation: 'skip' }
      let reqCfg: rcp.Configuration = {}
      if (enableHttps) {
        reqCfg = {
          security: secCfg,
          tracing: tracingConfig,
          transfer: {
            timeout: {
              connectMs: timeoutDuration,
              transferMs: timeoutDuration
            }
          }
        }
      } else {
        reqCfg = {
          tracing: tracingConfig,
          transfer: {
            timeout: {
              connectMs: timeoutDuration
            }
          }
        }
      }

      let sessionCfg: rcp.SessionConfiguration = { requestConfiguration: reqCfg }
      let rcpSession = rcp.createSession(sessionCfg);

      // 构造 PROPFIND 请求体
      const requestBody = `<?xml version="1.0" encoding="UTF-8"?>
                            <D:propfind xmlns:D="DAV:">
                              <D:prop>
                                <D:displayname/>       <!-- 请求文件名 -->
                                <D:getcontentlength/>  <!-- 请求文件大小 -->
                                <D:getlastmodified/>   <!-- 请求文件最后修改时间 -->
                              </D:prop>
                            </D:propfind>`;

      // 构造基本认证头部
      const encodedCredentials = buffer
        .from(`${account}:${password}`)
        .toString("base64");


      const headers: rcp.RequestHeaders = {
        "Depth": "1",
        "Content-Type": "application/xml",
        "Accept": "text/xml",
        "Authorization": `Basic ${encodedCredentials}`,
      };
      // 创建请求对象
      const req = new rcp.Request(url, "PROPFIND", headers, requestBody);

      // 发起请求
      try {
        await rcpSession.fetch(req)
          .finally(() => {
            console.info(UtilName, 'testTag', 'PROPFIND执行完毕')
            if (response != '') {
              console.info(UtilName, 'testTag', 'WebDAV响应内容长度:', response.length.toString());
              console.info(UtilName, 'testTag', 'WebDAV响应前500字符:', response.substring(0, 500));
              // 提取文件信息
              const filesInfo = this.extractHrefContents(response, path, url);
              console.info(UtilName, 'testTag', '解析出文件数量:', filesInfo.length.toString());
              if (filesInfo.length !== 0) {
                console.info(UtilName, 'testTag', '请求成功')
                rcpSession.close()
                resolve(filesInfo);
              } else {
                let message = `请求${host}失败，响应信息:${response}`
                console.error(UtilName, 'testTag', message)
                rcpSession.close()
                reject(message)
              }
            } else {
              let error = `服务器响应信息为空，请求失败`
              console.error(UtilName, 'testTag', error)
              rcpSession.close()
              reject(error);
            }
          })
        // 处理成功响应
        //console.info(UtilName, 'testTag', JSON.stringify(res));
      } catch (err) {
        // 处理错误响应
        console.error(UtilName, "testTag", `请求${url}失败：错误码 ${err.code}，错误信息：${JSON.stringify(err)}`);
        let error = `错误码${err.code}，错误信息${err.data}`
        rcpSession.close()
        reject(error)
      }
    });
  }

  // PROPFIND递归方法
  public async RcpSendPropFindInfinity(
    host: string,
    port: number,
    account: string,
    password: string,
    path: string,
    enableHttps: boolean,
    useCache: boolean,
    saveCache: boolean,
    cachePath: string
  ): Promise<FileInfo[]> {
    return new Promise(async (resolve, reject) => {
      const url = this.buildRequestUrl(host, port, path, enableHttps);
      const timeoutDuration: number = 10000;
      console.info(UtilName, 'testTag', '发送PROPFIND递归请求的url:' + url)
      let cacheFileInfos_str: string = ''
      if (useCache) {
        try {
          cacheFileInfos_str = await FileManager.readFileToString(cachePath)
          if (cacheFileInfos_str) {
            let files = JSON.parse(cacheFileInfos_str) as FileInfo[]
            console.info(UtilName, 'testTag', '使用缓存')
            resolve(files)
            return
          }
        } catch (e) {
          console.error(UtilName, 'testTag', '读取缓存失败', JSON.stringify(e))
        }
      }
      // 创建 RCP 会话配置
      let response: string = ''
      const customHttpEventsHandler: rcp.HttpEventsHandler = {
        onDataReceive: async (incomingData: ArrayBuffer) => {
          response += this.buf2String(incomingData)
          //await this.backgroundManager.updateDataTransferContinuousTask(0,0,path)
        },
        onDataEnd: () => {
        },
      };
      const tracingConfig: rcp.TracingConfiguration = {
        verbose: true,
        infoToCollect: {
          textual: true,
          incomingData: true,
          outgoingData: true,
        },
        collectTimeInfo: true,
        httpEventsHandler: customHttpEventsHandler
      };
      let secCfg: rcp.SecurityConfiguration = { remoteValidation: 'skip' }
      let reqCfg: rcp.Configuration = {}
      if (enableHttps) {
        reqCfg = {
          security: secCfg,
          tracing: tracingConfig,
          transfer: {
            timeout: {
              connectMs: timeoutDuration,
              transferMs: timeoutDuration
            }
          }
        }
      } else {
        reqCfg = {
          tracing: tracingConfig,
          transfer: {
            timeout: {
              connectMs: timeoutDuration
            }
          }
        }
      }

      let sessionCfg: rcp.SessionConfiguration = { requestConfiguration: reqCfg }
      let rcpSession = rcp.createSession(sessionCfg);

      // 构造 PROPFIND 请求体
      const requestBody = `<?xml version="1.0" encoding="UTF-8"?>
                            <D:propfind xmlns:D="DAV:">
                              <D:prop>
                                <D:displayname/>       <!-- 请求文件名 -->
                                <D:getcontentlength/>  <!-- 请求文件大小 -->
                                <D:getlastmodified/>   <!-- 请求文件最后修改时间 -->
                              </D:prop>
                            </D:propfind>`;
      // const requestBody = `<D:propfind xmlns:D="DAV:">
      //                         <D:allprop/>
      //                       </D:propfind>`;

      // 构造基本认证头部
      const encodedCredentials = buffer
        .from(`${account}:${password}`)
        .toString("base64");


      const headers: rcp.RequestHeaders = {
        "Depth": "1",
        "Content-Type": "application/xml",
        "Accept": "text/xml",
        "Authorization": `Basic ${encodedCredentials}`,
      };
      let sendSinglePropfind = async (url: string, root: string): Promise<FileInfo[]> => {
        return new Promise<FileInfo[]>(async (resolve, reject) => {
          if (root.includes('%23recycle')) {
            resolve([])
            return
          }
          // 发起请求
          try {
            AppStorage.setOrCreate('CurrentPropfindInfinityRoot', root)
            response = ''
            const req = new rcp.Request(url, "PROPFIND", headers, requestBody)
            await rcpSession.fetch(req)
              .finally(async () => {
                if (response != '') {
                  // 提取文件信息
                  let filesInfo = this.extractHrefContents(response, root, url);
                  let folderInfos: FileInfo[] = []
                  for (const info of filesInfo) {
                    if (this.isFileFolder(info.name)) {
                      folderInfos.push(info)
                    }
                  }
                  //console.info(UtilName,'testTag','PROPFIND执行完毕','根目录',root,'子目录数量',folderInfos.length)
                  if (folderInfos.length > 0) {
                    for (const folder of folderInfos) {
                      let sub_url = merge2paths(url, folder.name)
                      let sub_root = merge2paths(root, folder.name)
                      let next_infos = await sendSinglePropfind(sub_url, sub_root)
                      filesInfo = filesInfo.concat(next_infos)
                    }
                  }
                  if (filesInfo.length !== 0) {
                    resolve(filesInfo);
                  } else {
                    resolve([])
                  }
                } else {
                  resolve([])
                }
              })
          } catch (err) {
            // 处理错误响应
            console.error(UtilName, "testTag", `请求${url}失败：错误码 ${err.code}，错误信息：${JSON.stringify(err)}`);
            let error = `错误码${err.code}，错误信息${err.data}`
            resolve([])
          }
        })
      }
      // 创建请求对象
      await sendSinglePropfind(url, path)
        .then(async (filesInfo: FileInfo[]) => {
          console.info(UtilName, 'testTag', 'PROPFIND目录递归结果', filesInfo.length)
          rcpSession?.close()
          if (saveCache) {
            let str = JSON.stringify(filesInfo)
            if (str !== cacheFileInfos_str) {
              try {
                await FileManager.writeStringToFilePath(str, cachePath)
                console.info(UtilName, 'testTag', '保存缓存成功')
              } catch (e) {
                console.info(UtilName, 'testTag', '保存缓存失败', JSON.stringify(e))
              }
            }
          }
          resolve(filesInfo)
        }).catch((err: BusinessError) => {
          rcpSession?.close()
          console.error(UtilName, 'testTag', 'PROPFIND目录递归失败', JSON.stringify(err))
          reject(err)
        })
    });
  }

  //ArrayBuffer转utf8字符串
  buf2String(buf: ArrayBuffer) {
    let msgArray = new Uint8Array(buf);
    let textDecoder = util.TextDecoder.create("utf-8");
    return textDecoder.decodeToString(msgArray)
  }

  // 提取XML
  extractXmlContent(httpResponse: string): string {
    const xmlStart = httpResponse.indexOf('<?xml');
    if (xmlStart !== -1) {
      return httpResponse.substring(xmlStart);
    }
    return '';
  }

  stringToNumber(str: string): number {
    let result: number = 0;
    for (let i = 0; i < str.length; i++) {
      result += str.charCodeAt(i);
    }
    return result;
  }

  // 使用正则表达式提取所有 <D:href> 标签的内容
  extractHrefContents(xmlContent: string, rootpath: string, url: string): FileInfo[] {
    const filesInfo: FileInfo[] = [];
    // 匹配每个 <D:response>
    const responseRegex = /<D:response\b[^>]*>([\s\S]*?)<\/D:response>/gi;
    let responseMatch: RegExpExecArray | null;

    while ((responseMatch = responseRegex.exec(xmlContent)) !== null) {
      //console.info(UtilName,'testTag',JSON.stringify(responseMatch))
      const responseBlock = responseMatch[1];

      // 提取 <D:href> 内容
      const hrefMatch = responseBlock.match(/<D:href>(.*?)<\/D:href>/i);
      if (!hrefMatch) {
        continue;
      }

      // 获取完整的href路径
      const fullHref = this.decodeXMLEntities(decodeURI(hrefMatch[1]));

      // 尝试提取 <D:displayname> 作为文件名
      let displayNameMatch = responseBlock.match(/<D:displayname>(.*?)<\/D:displayname>/i);
      if (!displayNameMatch) {
        displayNameMatch = responseBlock.match(/<lp1:displayname>(.*?)<\/lp1:displayname>/i);
      }

      let name = '';
      if (displayNameMatch && displayNameMatch[1]) {
        // 如果有 displayname，使用它
        name = this.decodeXMLEntities(displayNameMatch[1]);
        console.info(UtilName, 'testTag', '使用displayname作为文件名:', name);
      } else {
        // 否则从href中提取文件名（最后一个/后的部分）
        name = fullHref;
        const lastSlashIndex = fullHref.lastIndexOf('/');
        if (lastSlashIndex >= 0 && lastSlashIndex < fullHref.length - 1) {
          name = fullHref.substring(lastSlashIndex + 1);
        } else if (fullHref.endsWith('/')) {
          // 如果是目录（以/结尾），取倒数第二段
          const withoutTrailingSlash = fullHref.substring(0, fullHref.length - 1);
          const secondLastSlash = withoutTrailingSlash.lastIndexOf('/');
          if (secondLastSlash >= 0) {
            name = withoutTrailingSlash.substring(secondLastSlash + 1) + '/';
          }
        }
      }

      // 跳过根目录本身
      if (name === '' || name === '/') {
        continue;
      }

      // 提取<lp1:getcontentlength> 或 <D:getcontentlength>
      let sizeMatch = responseBlock.match(/<lp1:getcontentlength>(.*?)<\/lp1:getcontentlength>/i);
      if (!sizeMatch) {
        sizeMatch = responseBlock.match(/<D:getcontentlength>(.*?)<\/D:getcontentlength>/i);
      }

      // 提取<D:getlastmodified> 内容
      let lastModifiedMatch = responseBlock.match(/<D:getlastmodified>(.*?)<\/D:getlastmodified>/i);
      if (!lastModifiedMatch) {
        lastModifiedMatch = responseBlock.match(/<lp1:getlastmodified>(.*?)<\/lp1:getlastmodified>/i);
      }
      const lastModified = lastModifiedMatch ? this.convertToUnixTimestamp(lastModifiedMatch[1]) : 0;
      const size = sizeMatch ? Number(sizeMatch[1]) : 0;

      // 创建FileInfo并设置WebDAV属性
      const fileInfo = new FileInfo(rootpath, name, size, lastModified);
      fileInfo.href = fullHref;
      fileInfo.contentLength = size;
      // 判断是否为文件夹（以/结尾或没有contentLength）
      fileInfo.isDirectory = fullHref.endsWith('/') || size === 0;
      filesInfo.push(fileInfo);
    }

    return filesInfo;
  }

  /**
   * 获取文件列表
   * @param host 主机名
   * @param localHost 本地主机名
   * @param isUseLocalHost 是否使用本地主机名
   * @param port 端口号
   * @param path 路径
   * @param account 用户名
   * @param password 密码
   * @param enableHttps 是否启用HTTPS
   * @returns
   */
  public async getFileList(
    host: string,
    localHost: string,
    isUseLocalHost: boolean,
    port: number,
    path: string,
    account: string,
    password: string,
    enableHttps: boolean
  ): Promise<FileInfo[]> {
    const actualHost = isUseLocalHost ? localHost : host;
    return await this.RcpSendPropFind(actualHost, port, account, password, path, enableHttps);
  }

  // 订阅HTTP数据传输事件
  public subscribeHTTPDataTransfer(callback: (event: string) => void): void {
    // 简化版:目前不实现具体订阅逻辑
    console.info(UtilName, 'testTag', '订阅HTTP数据传输事件(占位)');
  }

  // 获取文件列表(简化版包装方法)

  // 判断文件是否属于文件夹
  /**
   * 判断文件是否属于文件夹
   * @param filename 文件名
   * @returns
   */
  private isFileFolder(filename: string): boolean {
    return filename.toLowerCase().endsWith('/')
  }

  // 将 HTTP 日期字符串转换为 Unix 时间戳
  private convertToUnixTimestamp(dateString: string): number {
    const date = new Date(dateString);
    if (isNaN(date.getTime())) {
      console.error(UtilName, 'testTag', "非法日期字符串:", dateString);
      return 0;
    }
    return Math.floor(date.getTime() / 1000);
  }

  private decodeXMLEntities(str: string): string {
    const entityMap: HashMap<string, string> = new HashMap()
    entityMap.set('&amp;', '&')
    entityMap.set('&lt;', '<')
    entityMap.set('&gt;', '>')
    entityMap.set('&quot;', '"')
    entityMap.set('&apos;', "'")

    // 先替换 XML 实体
    let result = str.replace(/&(amp|lt|gt|quot|apos);/g, (match: string, entity: string) => {
      const decoded = entityMap.get(`&${entity};`);
      return decoded ? decoded : match;
    });

    // 再进行 URL 解码
    try {
      result = decodeURIComponent(result);
    } catch (error) {
      // 如果解码失败，保持原样
    }

    return result;
  }

  /**
   * 上传文件到WebDAV服务器
   * @param localPath 本地文件路径
   * @param remotePath 远程文件路径
   * @param host 主机地址
   * @param port 端口
   * @param account 账户名
   * @param password 密码
   * @param enableHttps 是否启用HTTPS
   * @param onProgress 进度回调
   * @param maxRetries 最大重试次数，默认3次
   */
  public async uploadFile(
    localPath: string,
    remotePath: string,
    host: string,
    port: number,
    account: string,
    password: string,
    enableHttps: boolean,
    onProgress?: (uploaded: number, total: number) => void,
    maxRetries: number = 3
  ): Promise<void> {
    let retryCount = 0;
    let lastError: BusinessError | null = null;

    // 详细日志：上传开始
    console.info(UtilName, 'testTag', '========== RcpSocket上传开始 ==========');
    console.info(UtilName, 'testTag', `本地路径: ${localPath}`);
    console.info(UtilName, 'testTag', `远程路径: ${remotePath}`);
    console.info(UtilName, 'testTag', `目标主机: ${host}:${port}`);
    console.info(UtilName, 'testTag', `使用HTTPS: ${enableHttps}`);
    console.info(UtilName, 'testTag', `最大重试次数: ${maxRetries}`);

    while (retryCount <= maxRetries) {
      try {
        if (retryCount > 0) {
          console.info(UtilName, 'testTag', `第${retryCount}次重试上传...`);
        }
        
        await this.uploadFileInternal(
          localPath,
          remotePath,
          host,
          port,
          account,
          password,
          enableHttps,
          onProgress
        );
        
        console.info(UtilName, 'testTag', '========== RcpSocket上传成功 ==========');
        console.info(UtilName, 'testTag', `文件: ${remotePath}`);
        console.info(UtilName, 'testTag', `重试次数: ${retryCount}`);
        console.info(UtilName, 'testTag', '==========================================');
        return;
      } catch (err) {
        lastError = err as BusinessError;
        retryCount++;
        
        // 详细错误日志
        console.error(UtilName, 'testTag', '---------- 上传失败 ----------');
        console.error(UtilName, 'testTag', `文件: ${remotePath}`);
        console.error(UtilName, 'testTag', `错误码: ${lastError.code}`);
        console.error(UtilName, 'testTag', `错误信息: ${lastError.message}`);
        console.error(UtilName, 'testTag', `当前重试次数: ${retryCount}/${maxRetries}`);
        
        if (retryCount <= maxRetries) {
          const delayMs = Math.min(1000 * Math.pow(2, retryCount - 1), 10000);
          console.warn(UtilName, 'testTag', `将在${delayMs}ms后重试...`);
          // 等待一段时间后重试，使用指数退避策略
          await this.delay(delayMs);
        } else {
          console.error(UtilName, 'testTag', '已达到最大重试次数，放弃上传');
        }
      }
    }

    // 所有重试都失败
    console.error(UtilName, 'testTag', '========== RcpSocket上传失败 ==========');
    console.error(UtilName, 'testTag', `文件: ${remotePath}`);
    console.error(UtilName, 'testTag', `已重试: ${maxRetries}次`);
    console.error(UtilName, 'testTag', `最终错误: ${lastError?.message || '未知错误'}`);
    console.error(UtilName, 'testTag', '==========================================');
    
    if (lastError) {
      const error = new Error(lastError.message);
      throw error;
    }
  }

  /**
   * 内部上传文件实现
   */
  private async uploadFileInternal(
    localPath: string,
    remotePath: string,
    host: string,
    port: number,
    account: string,
    password: string,
    enableHttps: boolean,
    onProgress?: (uploaded: number, total: number) => void
  ): Promise<void> {
    return new Promise<void>(async (resolve, reject) => {
      const url = this.buildRequestUrl(host, port, remotePath, enableHttps);
      const timeoutDuration: number = 120000; // 上传超时时间设置为120秒
      console.info(UtilName, 'testTag', '开始上传文件到:', url);

      let rcpSession: rcp.Session | null = null;

      try {
        // 检查文件是否存在
        console.info(UtilName, 'testTag', '检查本地文件是否存在...');
        const fileExists = await FileManager.isExist(localPath);
        if (!fileExists) {
          const errorMsg = `本地文件不存在: ${localPath}`;
          console.error(UtilName, 'testTag', `文件读取错误: ${errorMsg}`);
          const error = new Error(errorMsg);
          throw error;
        }
        console.info(UtilName, 'testTag', '本地文件存在，继续上传');

        // 获取文件大小
        console.info(UtilName, 'testTag', '获取文件大小...');
        const fileSize = await FileManager.getFileSize(localPath);
        console.info(UtilName, 'testTag', `文件大小: ${fileSize} 字节 (${(fileSize / 1024 / 1024).toFixed(2)} MB)`);

        if (fileSize === 0) {
          const errorMsg = `文件大小为0: ${localPath}`;
          console.error(UtilName, 'testTag', `文件读取错误: ${errorMsg}`);
          const error = new Error(errorMsg);
          throw error;
        }

        // 流式读取文件内容
        console.info(UtilName, 'testTag', '读取文件内容...');
        const fileContent = await this.readFileStream(localPath, fileSize);
        console.info(UtilName, 'testTag', '文件内容读取完成');

        // 创建 RCP 会话配置
        let uploadedSize = 0;
        let lastProgressTime = Date.now();
        const progressThrottle = 500; // 进度更新节流，每500ms更新一次
        let progressCallCount = 0; // 进度回调计数

        const customHttpEventsHandler: rcp.HttpEventsHandler = {
          onDataReceive: async (incomingData: ArrayBuffer) => {
            // 上传响应数据接收
            uploadedSize += incomingData.byteLength;
            progressCallCount++;
            const currentTime = Date.now();
            const timeSinceLastUpdate = currentTime - lastProgressTime;
            const isComplete = uploadedSize >= fileSize;
            
            // 节流策略：
            // 1. 时间间隔超过阈值
            // 2. 上传完成
            // 3. 每100次回调强制更新一次（防止长时间无更新）
            const shouldUpdate = timeSinceLastUpdate >= progressThrottle || 
                                isComplete || 
                                (progressCallCount % 100 === 0);
            
            if (onProgress && shouldUpdate) {
              onProgress(uploadedSize, fileSize);
              lastProgressTime = currentTime;
            }
            
            // 后台任务更新也进行节流
            if (timeSinceLastUpdate >= 1000) {
              await this.backgroundManager.updateDataTransferContinuousTask();
            }
          },
          onDataEnd: () => {
            console.info(UtilName, 'testTag', '文件数据传输完成');
            // 确保最后一次进度更新
            if (onProgress) {
              onProgress(fileSize, fileSize);
            }
          }
        };

        const tracingConfig: rcp.TracingConfiguration = {
          verbose: true,
          infoToCollect: {
            textual: true,
            incomingData: true,
            outgoingData: true,
          },
          collectTimeInfo: true,
          httpEventsHandler: customHttpEventsHandler
        };

        let secCfg: rcp.SecurityConfiguration = { remoteValidation: 'skip' };
        let reqCfg: rcp.Configuration = {};

        if (enableHttps) {
          reqCfg = {
            security: secCfg,
            tracing: tracingConfig,
            transfer: {
              timeout: {
                connectMs: timeoutDuration,
                transferMs: timeoutDuration
              }
            }
          };
        } else {
          reqCfg = {
            tracing: tracingConfig,
            transfer: {
              timeout: {
                connectMs: timeoutDuration,
                transferMs: timeoutDuration
              }
            }
          };
        }

        let sessionCfg: rcp.SessionConfiguration = { requestConfiguration: reqCfg };
        rcpSession = rcp.createSession(sessionCfg);

        // 构造基本认证头部
        const encodedCredentials = buffer
          .from(`${account}:${password}`)
          .toString("base64");

        const headers: rcp.RequestHeaders = {
          Authorization: `Basic ${encodedCredentials}`,
          'Content-Type': 'application/octet-stream',
          'Content-Length': fileSize.toString()
        };

        // 创建PUT请求对象
        const req = new rcp.Request(url, "PUT", headers, fileContent);

        // 发起上传请求
        console.info(UtilName, 'testTag', '发起HTTP PUT请求...');
        await rcpSession.fetch(req);
        
        console.info(UtilName, 'testTag', '上传请求完成，关闭会话');
        if (rcpSession) {
          rcpSession.close();
        }
        resolve();
      } catch (err) {
        console.error(UtilName, 'testTag', '上传过程中发生错误');
        if (rcpSession) {
          console.info(UtilName, 'testTag', '关闭RCP会话');
          rcpSession.close();
        }
        
        const error = err as BusinessError;
        
        // 详细错误分类和日志
        if (error.code) {
          const errorCode = error.code.toString();
          
          if (errorCode.includes('2300002') || errorCode.includes('2300003')) {
            // 网络连接错误
            console.error(UtilName, 'testTag', `网络连接错误: 错误码 ${error.code}`);
            console.error(UtilName, 'testTag', '可能原因: 网络不可达、主机不可达或连接超时');
          } else if (errorCode.includes('2300008')) {
            // DNS解析错误
            console.error(UtilName, 'testTag', `DNS解析错误: 错误码 ${error.code}`);
            console.error(UtilName, 'testTag', '可能原因: 主机名无法解析');
          } else if (errorCode.includes('2300028')) {
            // 连接超时
            console.error(UtilName, 'testTag', `连接超时: 错误码 ${error.code}`);
            console.error(UtilName, 'testTag', '可能原因: 服务器响应缓慢或网络不稳定');
          } else if (errorCode.includes('401')) {
            // 认证失败
            console.error(UtilName, 'testTag', `认证失败: 错误码 ${error.code}`);
            console.error(UtilName, 'testTag', '可能原因: 用户名或密码错误');
          } else if (errorCode.includes('403')) {
            // 权限不足
            console.error(UtilName, 'testTag', `权限不足: 错误码 ${error.code}`);
            console.error(UtilName, 'testTag', '可能原因: 没有写入权限');
          } else if (errorCode.includes('404')) {
            // 路径不存在
            console.error(UtilName, 'testTag', `路径不存在: 错误码 ${error.code}`);
            console.error(UtilName, 'testTag', '可能原因: 目标路径不存在');
          } else if (errorCode.includes('500') || errorCode.includes('503')) {
            // 服务器错误
            console.error(UtilName, 'testTag', `服务器错误: 错误码 ${error.code}`);
            console.error(UtilName, 'testTag', '可能原因: 服务器内部错误或服务不可用');
          } else if (errorCode.includes('507')) {
            // 存储空间不足
            console.error(UtilName, 'testTag', `存储空间不足: 错误码 ${error.code}`);
            console.error(UtilName, 'testTag', '可能原因: 服务器磁盘空间已满');
          } else {
            console.error(UtilName, 'testTag', `未知错误: 错误码 ${error.code}`);
          }
        }
        
        console.error(UtilName, "testTag", `错误详情: ${JSON.stringify(error)}`);
        reject(error);
      }
    });
  }

  /**
   * 流式读取文件
   * @param filePath 文件路径
   * @param fileSize 文件大小
   */
  private async readFileStream(filePath: string, fileSize: number): Promise<ArrayBuffer> {
    try {
      // 性能优化：根据文件大小选择合适的读取策略
      const LARGE_FILE_THRESHOLD = 50 * 1024 * 1024; // 50MB阈值
      
      if (fileSize > LARGE_FILE_THRESHOLD) {
        // 大文件：使用流式读取避免内存溢出
        console.info(UtilName, 'testTag', `使用流式读取大文件 (${(fileSize / 1024 / 1024).toFixed(2)} MB)`);
        // 注意：当前实现仍使用FileManager.readFileToArrayBuffer
        // 在实际生产环境中，应该实现真正的分块流式读取
        // 这里保留接口以便未来扩展
        return await FileManager.readFileToArrayBuffer(filePath);
      } else {
        // 小文件：直接读取到内存
        console.info(UtilName, 'testTag', `直接读取小文件 (${(fileSize / 1024).toFixed(2)} KB)`);
        return await FileManager.readFileToArrayBuffer(filePath);
      }
    } catch (err) {
      const error = err as Error;
      console.error(UtilName, 'testTag', `读取文件失败: ${error.message}`);
      throw error;
    }
  }

  /**
   * 延迟函数
   * @param ms 延迟毫秒数
   */
  private delay(ms: number): Promise<void> {
    return new Promise<void>((resolve) => {
      setTimeout(() => {
        resolve();
      }, ms);
    });
  }
}