<template>
  <div class="search-form">
    <!-- 头部搜索栏 -->
    <el-form v-model="formData" inline>
      <el-form-item
        v-for="(item, index) in searchFormData"
        :key="index"
        :label="item.label"
        :prop="item.prop"
      >
        <template v-if="item.type === 'select'">
          <template v-if="item.remote">
            <el-select
              v-model="formData[item.prop]"
              :filterable="item.filterable ?? true"
              remote
              :placeholder="item.placeholder"
              :remote-method="item.remoteMethod"
              :clearable="item.clearable ?? true"
              :remote-show-suffix="item.remoteShowSuffix ?? true"
              :style="{ width: item.width || '100%' }"
            >
              <el-option
                v-for="val in options"
                :key="val.value"
                :label="val.label"
                :value="val.value"
              />
            </el-select>
          </template>
          <template v-else>
            <el-select
              v-model="formData[item.prop]"
              :filterable="item.filterable ?? true"
              :placeholder="item.placeholder"
              :clearable="item.clearable ?? true"
              :style="{ width: item.width || '100%' }"
            >
              <el-option
                v-for="val in item.children.list"
                :key="val.value"
                :label="val.label"
                :value="val.value"
              />
            </el-select>
          </template>
        </template>
        <template v-else-if="item.type === 'daterange'">
          <el-date-picker
            v-model="formData[item.prop]"
            type="daterange"
            range-separator="至"
            start-placeholder="开始日期"
            value-format="YYYY-MM-DD"
            end-placeholder="结束日期"
            :style="{ width: item.width || '100%' }"
          />
        </template>
        <template v-else-if="item.type === 'monthrange'">
          <el-date-picker
            v-model="formData[item.prop]"
            type="monthrange"
            range-separator="至"
            start-placeholder="开始日期"
            value-format="YYYY-MM"
            end-placeholder="结束日期"
            :style="{ width: item.width || '100%' }"
          />
        </template>
        <template v-else-if="item.type === 'treeSelect'">
          <el-tree-select
            filterable
            v-model="formData[item.prop]"
            :data="treeData"
            placeholder="请选择"
            :render-after-expand="false"
            :style="{ width: item.width || '100%' }"
            :props="defaultProps"
            value-key="id"
          />
        </template>
        <template v-else>
          <component
            :is="`el-${item.type}`"
            v-model="formData[item.prop]"
            :placeholder="item.placeholder"
            :style="{ width: item.width || '100%' }"
          >
          </component>
        </template>
      </el-form-item>
      <el-form-item v-if="showBtn">
        <el-button type="primary" @click="searchForm">查询</el-button>
        <el-button @click="reset">重置</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script setup>
  import { onBeforeMount, watch, watchEffect, ref, reactive } from 'vue'
  let obj = {}
  const props = defineProps({
    /**
     * @param {Array} search 搜索栏
     */
    search: { type: Array, default: () => [] },
    showBtn: {
      type: Boolean,
      default: () => true
    }
  })
  const treeData = ref([])
  const defaultProps = { value: 'id', label: 'label', children: 'children' }
  const options = ref([])
  const formData = ref({})
  const searchFormData = ref(props.search)
  const emits = defineEmits(['searchData'])
  watchEffect(() => {
    const items = props.search
    items.forEach((item) => {
      obj[item.prop] = undefined
    })
    formData.value = JSON.parse(JSON.stringify(obj))
  })

  watch(
    () => formData.value,
    (newVal) => {
      console.log('newVal', newVal, !props.showBtn)
      !props.showBtn && searchForm()
    }
  )

  function searchForm() {
    emits('searchData', formData.value)
  }

  function reset() {
    formData.value = JSON.parse(JSON.stringify(obj))
    emits('resetData', formData.value)
  }

  function createRemoteMethod(fn) {
    return async (query) => {
      const res = await fn(query)
      options.value = res.data
    }
  }

  // const getTreeData = async () => {
  //   const response = await getDeptTree()
  //   treeData.value = response
  // }

  onBeforeMount(() => {
    // Object.keys(obj).includes('treeSelect') && getTreeData()
    const findItem = searchFormData.value.find((item) => item.type === 'select' && item.remote)
    if (findItem) {
      findItem.remoteMethod = createRemoteMethod(findItem.remoteMethod)
    }
  })
</script>

<style lang="scss" scoped>
  .search-form{
    //background: white;
    padding: 1rem;
    //padding-bottom: 0;
    margin-top: 0.5rem;
  }
  div {
    :deep(.el-form) {
      display: flex;
      flex-wrap: wrap;
      row-gap: 20px;
      .el-form-item {
        margin-bottom: 0;
      }
    }
  }
</style>
