import uploadStore from '@/store/modules/process'
import { ElMessage } from 'element-plus'
import { uploadFileMany } from "@/api/chat/msg";
import useUserStore from "@/store/modules/user";
const useUserStoreId = useUserStore();
export function addUploadFile(raw) {
  const upload = uploadStore()
  const uploadProgress = {
    progress: 0,
    file_id: '',
    file_name: raw.name,
    percent: [],
    speed: '0 MB',
    file_size: raw.size,
    upload_size: 0,
    upload_time: new Date()
  }
  // status上传状态 0 队列，1 上传中，2 上传成功 ， 3 取消上传
  // failTryCount 失败上传次数, 没上传一次，自动减去已，当为0的时候，停止上传
  upload.multiFileList.push({file: raw, progress: uploadProgress, status: 0, failTryCount: 3})
  multiUpload()
}

export function multiUpload() {
  const upload = uploadStore()
  const readFileList = []
  upload.multiFileList.forEach(res => {
    if (res.status === 0) {
      readFileList.push(res)
    }
  })
  if (readFileList.length > 0) {
    multiRun(upload, readFileList.slice(0, upload.processNumber))
  }
}

function multiRun(upload, keyList, func) {
  const processNumber = upload.processNumber
  const promise = upload.promise
  for (let i = 0; i < processNumber - promise.length; i++) {
    promise.push(Promise.resolve())
  }
  let reduceNumber = promise.length - processNumber
  if (reduceNumber > 0) {
    upload.promise = promise.slice(0, reduceNumber)
  }
  for (let j = 0; j < keyList.length; j += processNumber) {
    for (let i = 0; i < processNumber; i++) {
      if (i + j < keyList.length) {
        // promise[(j + i) % processNumber] = promise[(j + i) % processNumber].then(() => func(keyList[i + j]))
        // .catch(({fileInfo,err}) => {
        //   if (fileInfo?.status === 3) {
        //     console.log(fileInfo.file.name, '取消上传')
        //   } else {
        //     fileInfo.status = 0
        //     fileInfo.failTryCount -= 1
        //     if (fileInfo.failTryCount < 1) {
        //       ElMessage.error(`${fileInfo.file.name} 超过最大重试次数，停止上传`)
        //     } else {
        //       ElMessage.error(`${fileInfo.file.name} 上传失败，正在重试`)
        //       console.log(fileInfo.file.name, err)
        //       multiUpload()
        //     }
        //   }
        // })
      }
    }
  }
}
    uploadFileMany({spaceId:useUserStoreId.spaceIdCommon,dirId:17,files:''}).then((res) => {
      progress.progress = 100
      progress.upload_size = progress.file_size
      progress.speed = '上传成功'
      fileInfo.status = 2
      fileInfo.upload_time = new Date()
      console.log('res===', res)
      multiUpload()

      resolve()
    }).catch((err) => {
      fileInfo.status = 0
      fileInfo.failTryCount -= 1
      if (fileInfo.failTryCount < 1) {
        ElMessage.error(`${fileInfo.file.name} 超过最大重试次数，停止上传`)
      } else {
        ElMessage.error(`${fileInfo.file.name} 上传失败，正在重试`)
        console.log(fileInfo.file.name, err)
        multiUpload()
      }
      reject({fileInfo, err})
    })