<template>
  <div class="top-right-btn" :style="style">
    <el-row>
      <el-tooltip
        v-if="search"
        class="item"
        effect="dark"
        :content="showSearch ? '隐藏搜索' : '显示搜索'"
        placement="top"
      >
        <el-button circle icon="Search" @click="toggleSearch()" />
      </el-tooltip>
      <el-tooltip class="item" effect="dark" content="刷新" placement="top">
        <el-button circle icon="Refresh" @click="refresh()" />
      </el-tooltip>
      <el-tooltip v-if="columns" class="item" effect="dark" content="显隐列" placement="top">
        <el-button circle icon="Menu" @click="showColumn()" />
      </el-tooltip>
    </el-row>
    <el-dialog v-model="open" :title="title" append-to-body>
      <el-transfer
        v-model="value"
        :titles="['显示', '隐藏']"
        :data="columns"
        @change="dataChange"
      />
    </el-dialog>
  </div>
</template>

<script setup lang="ts">
import { computed, ref } from 'vue'
import type { PropType } from 'vue'
const props = defineProps({
  showSearch: {
    type: Boolean,
    default: true,
  },
  columns: {
    type: Object as PropType<any>,
  },
  search: {
    type: Boolean,
    default: true,
  },
  gutter: {
    type: Number,
    default: 10,
  },
})

const emits = defineEmits(['update:showSearch', 'queryTable', 'updateColumVis'])

// 显隐数据
const value = ref<Array<number>>([])
// 弹出层标题
const title = ref('显示/隐藏')
// 是否显示弹出层
const open = ref(false)

const style = computed(() => {
  const ret: { marginRight?: string } = {}
  if (props.gutter)
    ret.marginRight = `${props.gutter / 2}px`

  return ret
})

// 搜索
function toggleSearch() {
  emits('update:showSearch', !props.showSearch)
}

// 刷新
function refresh() {
  emits('queryTable')
}

// 右侧列表元素变化
function dataChange(data: Array<any>) {
  for (const item in props.columns) {
    const key = props.columns[item].key
    emits('updateColumVis', { vis: !data.includes(key), item })
  }
}

// 打开显隐列dialog
function showColumn() {
  open.value = true
}

// 显隐列初始默认隐藏列
for (const item in props.columns) {
  if (props.columns[item].visible === false)
    value.value.push(parseInt(item))
}
</script>

<style lang="scss" scoped>
  :deep(.el-transfer__button) {
    border-radius: 50%;
    display: block;
    margin-left: 0px;
  }
  :deep(.el-transfer__button:first-child) {
    margin-bottom: 10px;
  }

  .my-el-transfer {
    text-align: center;
  }
</style>
