<template>
  <div>
    <a-row>
      <a-col :span="24">
        <div class="main-title">
          <span>附件信息</span>
        </div>
      </a-col>
    </a-row>
    <a-row type="flex">
      <a-col :span="24" class="bg-gray">
        <div class="special-middle">
        <a href="/downloadFile/202412130901.docx" download="单位承诺书模版.docx" style="margin-right: 20px;">
          <a-icon type="download"></a-icon>&nbsp;<span style="color:green;text-decoration:underline;">单位承诺书模版</span>
        </a>
        <a href="/downloadFile/202412130902.docx" download="个人承诺书模版.docx" style="margin-right: 20px;">
          <a-icon type="download"></a-icon>&nbsp;<span style="color:green;text-decoration:underline;">个人承诺书模版</span>
        </a>
        <a href="/downloadFile/202412130903.docx" download="项目资金预算编制说明.docx" style="margin-right: 20px;">
          <a-icon type="download"></a-icon>&nbsp;<span style="color:green;text-decoration:underline;">项目资金预算编制说明</span>
        </a>
      </div>
      </a-col>
    </a-row>
    <a-row type="flex" class="row_center">
      <a-col :span="2">
        <div class="special-middle">
          <div>序号</div>
        </div>
      </a-col>
      <a-col :span="6" class="bg-gray">
        <div class="special-middle">
          <div>附件名称</div>
        </div>
      </a-col>
      <a-col :span="2" class="bg-gray">
        <div class="special-middle">
          <div>是否必备材料</div>
        </div>
      </a-col>
      <a-col :span="10" class="bg-gray">
        <div class="special-middle">
          <div>附件上传</div>
        </div>
      </a-col>
      <a-col :span="4" class="bg-gray">
        <div class="special-middle">
          <div>操作</div>
        </div>
      </a-col>
    </a-row>
    <a-row v-for="(item, index) in fileList" :key="'fileList' + index" type="flex">
      <a-col :span="2" style="text-align: center; margin-top: 8px;">
        {{ index + 1 }}
      </a-col>
      <a-col :span="6">
        <div class="special-middle" v-if="index <= 10">{{ item.fileExplain }}</div>
        <a-form-model-item v-else :prop="'fileList.' + index + '.fileExplain'" :rules="{required: item.isRequired, message: '*',trigger: 'blur',}">
          <a-input v-model="item.fileExplain" :maxLength="100" style="width: 100%" :disabled="item.required" />
        </a-form-model-item>
      </a-col>
      <a-col :span="2">
        <div class="special-middle" style="text-align: center;"><div>{{ item.isRequired == true ? "是" : "否" }}</div></div>
      </a-col>
      <a-col :span="10">
        <div class="special-middle">
          <div v-if="item.downloadUrl" class="file-box">
            <div>
              <a-icon type="file" style="margin-right: 8px" />
              <span class="hover-pointer" @click="downloadfile(item)">{{item.fileName}}</span>
            </div>
            <a-icon type="delete" class="hover-pointer d-icon" @click="deletefile(item, index)" />
          </div>
          <div v-else>
            <a-form-model-item :prop="'fileList.' + index + '.downloadUrl'" :rules="{required: item.isRequired, message: '请上传附件',trigger: 'blur',}">
              <input type="file" :ref="'fileElem' + index" class="visually-hidden" @change="handleFiles(item, index)" />
              <a-button @click="fileSelect(item, index)"><a-icon type="upload" />选择文件</a-button>
            </a-form-model-item>
          </div>
        </div>
      </a-col>
      <a-col :span="4">
        <div class="special-middle">
          <div v-if="!item.required">
            <a-popconfirm title="确定要删除吗？" ok-text="确定" cancel-text="取消" @confirm="removefileList(item)">
              <a-button type="link" size="small">删除</a-button>
            </a-popconfirm>
          </div>
        </div>
      </a-col>
    </a-row>
    <a-row type="flex">
      <a-col :span="24" style="text-align: center">
        <div class="special-middle">
          <div>
            <a-button type="dashed" style="width: 50%" @click="addfileList()">
              <a-icon type="plus" /> 添加
            </a-button>
          </div>
        </div>
      </a-col>
    </a-row>
  </div>
</template>

<script>
const File = { fileName: "", downloadUrl: "", fileExplain: "", downloadId: "", isRequired: false, required: false };

export default {
  name: "fileEdit",
  props: {
    fileList: {
      type: Array,
      default: () => {
        return [{ ...File }];
      },
    },
  },
  created() {},
  data() {
    return {
      mustAttachment: [ 0, 1 ],
    };
  },
  methods: {
    downloadfile() {
      
    },
    deletefile (item, index) {
      this.$api.base.deletefile({ id: item.downloadId }).then(({ data = {} }) => {
        if (data) {
          item.fileName = ''
          item.downloadUrl = ''
          item.downloadId = ''
        }
      }).catch(() => {
        this.$message.error('删除失败')
      })
    },
    uploadHandle (file, fileName) {
      let formData = new FormData()
      formData.append('file', file)
      formData.append('fileName', fileName)
      return formData
    },
    handleFiles(item, index) {
        let fileElem = this.$refs['fileElem' + index][0]
      let files = fileElem.files
      if (files.length <= 0) {
        this.$message.error('未选中文件，请尝试重新选择')
        return
      }
      if (!this.fileCheck(files[0]))
        return
      this.$api.base.asyncUpload(this.uploadHandle(files[0], files[0].name)).then(({ data = {} }) => {
        if (data) {
          item.fileName = files[0].name
          item.downloadUrl = '/' + files[0].name
          item.downloadId = data.id
        } else
          this.$message.error('上传失败')
      }).catch(() => {
        this.$message.error('上传失败')
      })
    },
    fileSelect (item, index) {
      let fileElem = this.$refs['fileElem' + index][0]
      if (fileElem) {
        fileElem.click()
      }
    },
    fileCheck (file) {
      //判断是否小于1M
      let isLtSize = file.size < 1024 * 1024 * 15;
      if (!isLtSize) {
        this.$message.error('文件大小不能超过15M！');
        return false
      }
      return true
    },
    // 添加附件
    addfileList () {
      this.fileList.push(Object.assign({ ...File }, { fileExplain: '' }))
    },
    // 删除附件
    removefileList (item) {
      let index = this.fileList.indexOf(item)
      if (index !== -1) {
        this.fileList.splice(index, 1)
      }
    },
  },
};
</script>