import CryptoJS from 'crypto-js'

const fs = require('fs')
const path = require('path')
import { ElectronDownloadManager } from 'electron-dl-manager'
import { dialog } from 'electron'
import axios from 'axios'
const uploadUrl = import.meta.env.VITE_APP_UPLOAD_API + '/smarttalk/file/upload'
const manager = new ElectronDownloadManager()
export default async function ({ app, shell, BrowserWindow, ipcMain }) {
  const userDataPath = app.getPath('userData')
  const appRootFilePath = userDataPath + '\\selfFile\\'
  const appTempFilePath = userDataPath + '\\tempFile\\'
  ipcMain.on('is-have-local-file', (e, fileNewName) => {
    let filePath = appRootFilePath + fileNewName
    fs.access(filePath, fs.constants.F_OK, (err) => {
      if (err) {
        e.reply('is-have-local-file-reply' + fileNewName, false)
        return
      }
      e.reply('is-have-local-file-reply' + fileNewName, true)
    })
  })
  //默认浏览器打开url
  ipcMain.on('open-url-browser', (e, url) => {
    shell.openPath(url)
  })
  //使用默认应用打开本地文件
  ipcMain.on('open-path-app', (e, destination) => {
    let path = appRootFilePath + destination
    shell.openExternal(path).catch((error) => {
      console.log(error)
    })
  })

  //复制文件
  ipcMain.on('copy-file-default', (e, { source, destination }) => {
    copyFile(source, destination, (error, filePath) => {
      e.reply('copy-file-default-reply', { error, filePath })
    })
  })

  //复制文件
  ipcMain.on('export-file-default', (e, list) => {
    exportFile(list, (res) => {
      e.reply('export-file-default-reply', res)
    })
  })

  function getFileMD5(file) {
    return new Promise((resolve, reject) => {
      const fileReader = new FileReader()
      fileReader.onload = (e) => {
        const buffer = e.target.result
        let md5 = CryptoJS.MD5(buffer).toString()
        resolve(md5)
      }
      fileReader.readAsArrayBuffer(file)
    })
  }

  ipcMain.on('creat-file-default', (e, { name, uploadData, cookie }) => {
    createFolder('tempFile').then(() => {
      let path = appTempFilePath + name
      fs.writeFileSync(path, '', 'utf-8')
      // 读取文件
      fs.readFile(path, (err, data) => {
        if (err) {
          return console.error(err)
        }
        // 配置上传的请求
        const config = {
          headers: {
            'Content-Type': 'multipart/form-data', // 或者其他适合上传文件的Content-Type
            Authorization: 'Bearer ' + cookie
          }
        }
        let md5 = CryptoJS.MD5(data).toString()
        let formData = new FormData()
        // 使用axios上传文件
        let file = new File([data], name, {
          type: 'application/vnd.openxmlformats-officedocument.presentationml.presentation'
        })
        formData.append('file', file)
        formData.append('md5',md5)

        for (let key in uploadData) {
          if (uploadData.hasOwnProperty(key)) { // 检查是否是对象自身的属性
            formData.append(key,uploadData[key])
          }
        }
        formData.append("fileFlag","教案")
        axios
          .post(uploadUrl, formData, config)
          .then((response) => {
            e.reply('creat-file-default-reply', response.data)
            console.log('File uploaded successfully:', response.data)
          })
          .catch((error) => {
            console.error('Error uploading file:', error)
          })
      })
    })
  })

  //获取应用文件目录
  ipcMain.on('get-root-file-path', (e) => {
    e.reply('get-root-file-path-reply', appRootFilePath)
  })

  //下载文件
  ipcMain.on('download-file-default', (e, { url, fileName }) => {
    createFolder('selfFile').then(async () => {
      const browserWindow = BrowserWindow.fromId(e.sender.id)
      const id = await manager.download({
        window: browserWindow,
        url: url,
        saveAsFilename: fileName,
        directory: appRootFilePath,
        callbacks: {
          onDownloadStarted: async ({ id, item, webContents }) => {
            // Do something with the download id
          },
          onDownloadProgress: async ({ id, item, percentCompleted }) => {},
          onDownloadCompleted: async ({ id, item }) => {
            console.log('完成')
            e.reply('download-file-default' + fileName, true)
          },
          onDownloadCancelled: async () => {
            console.log('取消')
            e.reply('download-file-default' + fileName, false)
          },
          onDownloadInterrupted: async () => {
            console.log('中断')
            e.reply('download-file-default' + fileName, false)
          },
          onError: (err, data) => {
            console.log(err.toString())
            e.reply('download-file-default' + fileName, false)
          }
        }
      })
    })
  })

  /**另存为...
   * 接收渲染进程 保存文件的 的通知
   * @param {Object} event
   * @param {String} url 下载链接
   * @param {String} fileName 文件名称包括后缀名，例如图1.png
   */
  ipcMain.on('save-as', function (event, url, fileName) {
    let win = BrowserWindow.getFocusedWindow()
    //通过扩展名识别文件类型
    let filters = [{ name: '全部文件', extensions: ['*'] }]
    let ext = path.extname(fileName) //获取扩展名
    if (ext && ext !== '.') {
      const name = ext.slice(1, ext.length)
      if (name) {
        filters.unshift({
          name: '',
          extensions: [name]
        })
      }
    }
    let filePath = null //用户选择存放文件的路径

    //1-  弹出另存为弹框，用于获取保存路径
    dialog
      .showSaveDialog(win, {
        title: '另存为',
        filters,
        defaultPath: fileName
      })
      .then((result) => {
        //点击保存后开始下载
        filePath = result.filePath
        if (filePath) {
          win.webContents.downloadURL(url) // 触发will-download事件
        }
      })
      .catch(() => {
        console.log('另存为--catch')
      })

    //2- 准备下载的时候触发
    win.webContents.session.once('will-download', (event, item, webContents) => {
      if (!filePath) return
      //设置下载项的保存文件路径
      item.setSavePath(filePath)
    })
  })

  function exportFile(list, callback) {
    let win = BrowserWindow.getFocusedWindow()
    //通过扩展名识别文件类型
    let filePath = null //用户选择存放文件的路径
    //1-  弹出另存为弹框，用于获取保存路径
    dialog
      .showOpenDialog(win, {
        properties: ['openDirectory']
      })
      .then(async (result) => {
        if (result.filePaths[0]) {
          filePath = result.filePaths[0]
          let res = []
          for (let i = 0; i < list.length; i++) {
            let item = list[i]
            let source = appRootFilePath + item.id
            let destination = filePath + '/' + item.name
            await copyRelFile(source, filterCopyFile(destination), (error, path) => {
              res.push({ error, path })
            })
          }
          callback(res)
        }
      })
      .catch(() => {
        console.log('另存为--catch')
      })
  }

  function isHaveFile(path) {
    return fs.existsSync(path)
  }

  function filterCopyFile(path, index = 0) {
    if (isHaveFile(path) === true) {
      index++
      path = path.replaceAll('.', `(${index}).`)
      return filterCopyFile(path, index)
    } else {
      return path
    }
  }

  function copyRelFile(source, destination, callback) {
    return new Promise((resolve, reject) => {
      const readStream = fs.createReadStream(source)
      const writeStream = fs.createWriteStream(destination)

      readStream.on('error', (error) => {
        reject()
        callback(error, null)
      })
      writeStream.on('error', (error) => {
        reject()
        callback(error, null)
      })
      writeStream.on('close', () => {
        console.log('关闭写入流')
        callback(null, destination)
        resolve()
      })
      readStream.pipe(writeStream)
    })
  }

  function copyFile(source, destination, callback) {
    let path = appRootFilePath + destination
    createFolder('selfFile').then(() => {
      const readStream = fs.createReadStream(source)
      const writeStream = fs.createWriteStream(path)

      readStream.on('error', (error) => {
        callback(error, null)
      })
      writeStream.on('error', (error) => {
        callback(error, null)
      })
      writeStream.on('close', () => {
        callback(null, path)
      })

      readStream.pipe(writeStream)
    })
  }

  function createFolder(folderName) {
    return new Promise((resolve, reject) => {
      const folderPath = path.join(userDataPath, folderName)
      // 异步检查文件夹是否存在，不存在则创建
      fs.access(folderPath, fs.constants.F_OK, (err) => {
        if (err) {
          fs.mkdir(folderPath, { recursive: true }, (mkdirErr) => {
            if (mkdirErr) {
              console.error(mkdirErr)
              reject()
            } else {
              console.log(`Folder ${folderName} created successfully.`)
              resolve()
            }
          })
        } else {
          console.log(`Folder ${folderName} already exists.`)
          resolve()
        }
      })
    })
  }
}