<template>
  <el-row class="movie-list">
    <el-col :md="12" style="padding-right: 5px; padding-left: 5px; padding-bottom: 5px">
      <el-row style="padding-right: 5px; padding-left: 5px; padding-bottom: 5px">
        <el-card class="box-card">
          <div slot="header" class="clearfix">
            <span>上传文件</span>
          </div>
          <div class="text item">
            <el-tooltip class="item" effect="dark" content="点击上传文件" placement="top-end">
              <el-upload
                class=""
                action=""
                :show-file-list="false"
                :http-request="fnUploadRequest"
                :on-success="handleAvatarSuccess"
                :before-upload="beforeAvatarUpload"
              >
                <img v-if="imageUrl" :src="imageUrl" class="avatar" alt="">
                <i v-else class="el-icon-plus avatar-uploader-icon" />
              </el-upload>
            </el-tooltip>
          </div>
        </el-card>
      </el-row>
    </el-col>
    <el-col :md="12" style="padding-right: 5px; padding-left: 5px; padding-bottom: 5px">
      <el-row style="padding-right: 5px; padding-left: 5px; padding-bottom: 5px">
        <el-card class="box-card">
          <div slot="header" class="clearfix">
            <span>OSS 地址</span>
          </div>
          <div class="text item">
            <span>{{ imageUrl }}</span>
            <!--            <el-form ref="form" :model="imageUrl" label-width="80px">
              <el-form-item label="文件地址">
                <el-input v-model="imageUrl" style="padding-right: 1px" readonly />
              </el-form-item>
            </el-form>-->
          </div>
        </el-card>
      </el-row>
    </el-col>
  </el-row>
</template>

<script>
import OSS from 'ali-oss'
import { getSignedUrl, getStsToken } from '@/api/file'

export default {
  name: 'PublishFile',
  data() {
    return {
      imageUrl: '',
      ossUrl: ''
    }
  },
  created() {
  },
  methods: {
    // 图片上传成功回调
    handleAvatarSuccess(res) {
      if (res) {
        const objectName = res.url.replace(this.ossUrl, '')
        const payload = {}
        payload.objectName = objectName
        getSignedUrl(payload).then(resp => {
          if (resp.code === 0) {
            this.imageUrl = resp.data
            // this.imageUrl = res.url
          }
        })
      }
    },
    beforeAvatarUpload(file) {
      const isJPG = file.type === 'image/jpeg'
      const isLt2M = file.size / 1024 / 1024 < 2

      if (!isJPG) {
        this.$message.error('上传头像图片只能是 JPG 格式!')
      }
      if (!isLt2M) {
        this.$message.error('上传头像图片大小不能超过 2MB!')
      }
      return isJPG && isLt2M
    },
    async fnUploadRequest(options) {
      try {
        const file = options.file // 拿到 file
        const index = file.name.lastIndexOf('.')
        const suffix = file.name.substr(index)
        getStsToken().then(resp => {
          if (resp.code === 0) {
            const credentials = resp.data
            this.ossUrl = credentials.ossUrl
            const client = new OSS({
              region: credentials.region,
              bucket: credentials.bucket,
              accessKeyId: credentials.accessKeyId,
              accessKeySecret: credentials.accessKeySecret,
              stsToken: credentials.securityToken
            })

            const objectId = credentials.objectId
            const objectName = 'image/i/' + objectId + suffix
            client.put(objectName, file).then(resp1 => {
              if (resp1.res.statusCode === 200) {
                console.log(resp1)
                options.onSuccess(resp1)
              } else {
                console.log(resp1)
                options.onError('上传失败')
              }
            })
          }
        })
      } catch (e) {
        options.onError('上传失败')
      }
    }
  }
}
</script>

<style>
.uploader-example {
  width: 500px;
  padding: 15px;
  margin: 40px auto 0;
  font-size: 12px;
  box-shadow: 0 0 10px rgba(0, 0, 0, .4);
}
.uploader-example .uploader-btn {
  margin-right: 4px;
}
.uploader-example .uploader-list {
  max-height: 440px;
  overflow: auto;
  overflow-x: hidden;
  overflow-y: auto;
}

.avatar-uploader .el-upload {
  border: 1px dashed #d9d9d9;
  border-radius: 6px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.avatar-uploader .el-upload:hover {
  border-color: #409EFF;
}
.avatar-uploader-icon {
  font-size: 28px;
  color: #8c939d;
  width: 320px;
  height: 240px;
  line-height: 178px;
  text-align: center;
}
.avatar {
  width: 320px;
  height: 240px;
  display: block;
}
</style>
