<template>
  <div class="upload-container">
    <el-button
      :style="{ background: color, borderColor: color }" icon="el-icon-upload" size="mini" type="primary"
      @click="dialogVisible = true"
    >
      <!-- upload -->
      上传
    </el-button>
    <!-- action="https://httpbin.org/post" -->

    <el-dialog :visible.sync="dialogVisible" :append-to-body="true">
      <el-upload
        :multiple="true" :file-list="fileList" :show-file-list="true" :on-remove="handleRemove"
        :on-success="handleSuccess" :before-upload="beforeUpload" class="editor-slide-upload" :action="action"
        :headers="headers" :data="dataObj" list-type="picture-card"
      >
        <el-button size="small" type="primary">
          <!-- Click upload -->
          点击上传
        </el-button>
      </el-upload>
      <el-button @click="dialogVisible = false">
        <!-- Cancel -->
        取消
      </el-button>
      <el-button type="primary" @click="handleSubmit">
        <!-- Confirm -->
        确认
      </el-button>
    </el-dialog>
  </div>
</template>

<script>
// import { getToken } from 'api/qiniu'
// import db from "@/utils/localstorage";
import { uploadUrl } from '@/utils/request'
import { getToken } from '@/utils/auth'
export default {
  name: 'EditorSlideUpload',
  props: {
    color: {
      type: String,
      default: '#1890ff'
    }
  },
  data() {
    return {
      dialogVisible: false,
      listObj: {},
      fileList: [],
      headers: {
        'Authorization-business': getToken()
      },
      action: uploadUrl,
      dataObj: {
        folderId: 1
      }
    }
  },
  created() {
    // this.headers.token = "Bearer " + db.get("TOKEN", "");
    this.headers.tenant = 'MDAwMA=='
  },
  methods: {
    checkAllSuccess() {
      return Object.keys(this.listObj).every((item) => this.listObj[item].hasSuccess)
    },
    handleSubmit() {
      const arr = Object.keys(this.listObj).map((v) => this.listObj[v])

      if (!this.checkAllSuccess()) {
        this.$message('Please wait for all images to be uploaded successfully. If there is a network problem, please refresh the page and upload again!')
        return
      }
      this.$emit('successCBK', arr)
      this.listObj = {}
      this.fileList = []
      this.dialogVisible = false
    },
    handleSuccess(response, file) {
      const uid = file.uid
      const objKeyArr = Object.keys(this.listObj)
      for (let i = 0, len = objKeyArr.length; i < len; i++) {
        if (this.listObj[objKeyArr[i]].uid === uid) {
          this.listObj[objKeyArr[i]].url = response.data.url
          this.listObj[objKeyArr[i]].hasSuccess = true
          return
        }
      }
    },
    handleRemove(file) {
      const uid = file.uid
      const objKeyArr = Object.keys(this.listObj)
      for (let i = 0, len = objKeyArr.length; i < len; i++) {
        if (this.listObj[objKeyArr[i]].uid === uid) {
          delete this.listObj[objKeyArr[i]]
          return
        }
      }
    },
    beforeUpload(file) {
      const _self = this
      const _URL = window.URL || window.webkitURL
      const fileName = file.uid
      this.listObj[fileName] = {}
      return new Promise((resolve) => {
        const img = new Image()
        img.src = _URL.createObjectURL(file)
        img.onload = function () {
          _self.listObj[fileName] = {
            hasSuccess: false,
            uid: file.uid,
            width: this.width,
            height: this.height
          }
        }
        resolve(true)
      })
    }
  }
}
</script>

<style lang="scss" scoped>
.editor-slide-upload {
	margin-bottom: 20px;

	.el-upload--picture-card {
		width: 100%;
	}
}
</style>
