vue3 certificate identification upload component packaging function

<template>
  <div class="component-upload-image">
    <el-upload 
      :action="uploadUrl" 
      list-type="picture-card" 
      :on-success="handleUploadSuccess"
      :before-upload="handleBeforeUpload" 
      :limit="limit" 
      :on-error="handleUploadError" 
      :on-exceed="handleExceed"
      ref="imageUpload" 
      :before-remove="handleDelete" 
      :data="params" 
      name="file" 
      :show-file-list="true" 
      :headers="headers"
      v-model:file-list="fileList" 
      :on-preview="handlePictureCardPreview" 
      :class="{ hide:  >= limit }">
        <el-icon class="avatar-uploader-icon">
          <plus />
        </el-icon>
      </el-upload>
    <!-- Upload prompts -->
    <div class="el-upload__tip" v-if="showTip">
      Please upload
      <template v-if="fileSize">
        No more than the size <b style="color: #f56c6c">{{ fileSize }}MB</b>
      </template>
      <template v-if="fileType">
        The format is <b style="color: #f56c6c">{{ ("、") }}</b>
      </template>
      Files
    </div>
    <template v-if="showTipButton">
      <el-button link type="primary" @click="showDiagram = !showDiagram" icon="InfoFilled">View schematic diagram</el-button>
    </template>
    <el-image class="tip-img" :src="diagram" fit="contain" :preview-src-list="[diagram]" v-if="showDiagram" :preview-teleported="true"></el-image>
    <el-dialog v-model="dialogVisible" title="Preview" width="800px" append-to-body>
      <img :src="dialogImageUrl" style="display: block; max-width: 100%; margin: 0 auto" />
    </el-dialog>
  </div>
</template>
<script setup name="CertificateUpload">
import { getToken } from "@/utils/auth";
const props = defineProps({
  // Whether to display a schematic diagram  showTipButton: {
    type: Boolean,
    default: true
  },
  // Schematic diagram  diagram: { 
    type: String,
    default: '',
  },
  //Identify the interface  action:{
    type: String,
    default: '',
  },
  modelValue: [String, Object, Array],
  limit: {
    type: Number,
    default: 1,
  },
  // Size limit (MB)  fileSize: {
    type: Number,
    default: 5,
  },
  // File type, for example ['png', 'jpg', 'jpeg']  fileType: {
    type: Array,
    default: () => ['png','jpg','jpeg','bmp'],
  },
  // Whether to display a prompt  isShowTip: {
    type: Boolean,
    default: true
  },
});
const { proxy } = getCurrentInstance();
const emit = defineEmits(['update:modelValue','certificateInfo']);
const showDiagram = ref(false)
const dialogImageUrl = ref("");
const dialogVisible = ref(false);
const baseUrl = .VITE_APP_BASE_API;
// const uploadUrl = ref(baseUrl + ); // uploaded image server addressconst headers = ref({ Authorization: "Bearer " + getToken() , repeatSubmit : false});
const uploadUrl = computed( //Uploaded image server address  () => baseUrl + 
);
const showTip = computed(
  () =>  && ( || )
);
const params = ref({})
const fileList = computed({
  get: () => {
    if(){
      // First convert the value into an array      if(!()){
        proxy.$('modelValue Must be an array { url ossId name }[]')
        return []
      }
      return 
    }else{
      return []
    }
  },
  set: (newVal) => {}
});
// Loading before uploadingfunction handleBeforeUpload(file) {
  try {
    let isImg = false;
    if () {
      let fileExtension = "";
      if ((".") > -1) {
        fileExtension = ((".") + 1);
      }
      isImg = (type => {
        if ((type) > -1) return true;
        if (fileExtension && (type) > -1) return true;
        return false;
      });
    } else {
      isImg = ("image") > -1;
    }
    if (!isImg) {
      proxy.$(
        `File format is incorrect, Please upload${("/")}Image format file!`
      );
      return false;
    }
    if () {
      const isLt =  / 1024 / 1024 < ;
      if (!isLt) {
        proxy.$(`The uploaded image size cannot exceed ${} MB!`);
        return false;
      }
    }
     = (/\.[a-zA-Z]+$/g, '') + '_' + new Date().getTime() // Put a timestamp to avoid repeated overwriting of file addresses    proxy.$("Uploading pictures, please wait...");
  } catch (error) {
    proxy.$();
    (error)
  }
}
// The number of files exceedsfunction handleExceed() {
  proxy.$(`The number of uploaded files cannot exceed ${} indivual!`);
}
// Callback successfully uploadedfunction handleUploadSuccess(res, file, fileList) {
  try {
    if ( === 200) {
      // Multiple pictures      // const all = [, ...(z=>!).map(u=>)].join(',')
      emit("update:modelValue", [{
        url: ,
        name: ,
        ossId: 
      }])
      emit("certificateInfo",)
      proxy.$();
    } else {
      proxy.$();
      proxy.$();
      proxy.$(file);
    }
  } catch (error) {
    proxy.$();
    (error)
  }
}
// Delete the picturefunction handleDelete(file) {
  const findex = (f => ).indexOf();
  if (findex > -1) {
    (findex, 1);
    emit("update:modelValue", (z => ).join(','))
    return false;
  }
}
// Upload failedfunction handleUploadError() {
  proxy.$("Uploading image failed");
  proxy.$();
}
// Previewfunction handlePictureCardPreview(file) {
   = ;
   = true;
}
</script>
<style scoped lang="scss">
:deep(.hide .el-upload--picture-card) {
  display: none;
}
</style>