<script lang="ts" setup name="ResourceList">
import type { Ref } from 'vue'
import { getCurrentInstance, nextTick, reactive, ref } from 'vue'
import { ElMessage, ElMessageBox } from 'element-plus'
import { videoTree } from '@/api/ycjg/aqbb'
const router = useRouter()

const treeRef = ref(null)
const filterText = ref('')
const data = ref([])
//   [{
//   id: 1,
//   name: '一级 1',
//   children: [{
//     id: 4,
//     name: '二级 1-1',
//     children: [{
//       id: 9,
//       name: '三级 1-1-1',
//     }, {
//       id: 10,
//       name: '三级 1-1-2',
//     }],
//   }],
// }, {
//   id: 2,
//   name: '一级 2',
//   children: [{
//     id: 5,
//     name: '二级 2-1',
//   }, {
//     id: 6,
//     name: '二级 2-2',
//   }],
// }, {
//   id: 3,
//   name: '一级 3',
//   children: [{
//     id: 7,
//     name: '二级 3-1',
//   }, {
//     id: 8,
//     name: '二级 3-2',
//   }],
// }])

const defaultProps = ref({
  children: 'children',
  label: 'name',
  isDisabled: 'disabled',
})

const { proxy } = getCurrentInstance() as any
const width = ref(0)
const height = ref(0)
const loading = ref(false)
const src = ref(['', '', '', ''])

const resize = () => {
  const divPlugin = document.getElementById('home')
  console.log(divPlugin)
  width.value = divPlugin.clientWidth / 2 - 20
  height.value = divPlugin.clientHeight / 2 - 5
}

function filterNode(value: any, data: { name: string | any[] }) {
  if (value === '' || value === null) {
    return true
  }
  return data.name.includes(value)
}

let treeClickCount = 0
let currentIndex = 0
const currentCameras = [{}, {}, {}, {}]

function handleNodeClick(data: any, node: any, self: any) {
  const now = new Date().getTime()
  if (now - treeClickCount < 300) { // 双击事件的判断，300毫秒内重复点击
    console.log('Double click on:', data)
    if (data.children.length !== 0) { // 点击父亲
      return
    }
    for (let i = 0; i < currentIndex; i++) { // 前面有
      if (src.value[i] === data.url) {
        return
      }
    }
    // 这里处理双击事件
    if (currentIndex === 4) {
      currentIndex = 0
    }
    src.value[currentIndex] = data.url // todo 视频地址
    currentCameras[currentIndex] = data
    currentIndex++
  }
  treeClickCount = now
}

function page(index: any) {
  if (src.value[index] !== '') {
    router.push({
      path: '/ssjk/control',
      query: {
        id: currentCameras[index].id,
      },
    })
  }
}

const unwatch = watch(filterText, (newVal) => {
  treeRef.value.filter(newVal)
})

onBeforeUnmount(() => {
  unwatch()
  window.removeEventListener('resize', resize)
})

onMounted(() => {
  videoTree().then((response) => {
    if (response.code === 200) {
      data.value = response.data
    }
  })
  resize()
  window.addEventListener('resize', resize)
})
</script>

<template>
  <app-container style="height: calc(100vh - 110px)">
    <div style="display: flex;height: 100%">
      <el-card class="left">
        <el-input
          placeholder="设备名称过滤"
          v-model="filterText">
        </el-input>
        <el-tree
          ref="treeRef"
          class="filter-tree"
          style="width: 100%;height: 100%"
          :data="data"
          :filter-node-method="filterNode"
          node-key="id"
          :default-expand-all="true"
          :props="defaultProps"
          @node-click="handleNodeClick"/>
      </el-card>
      <div id="home" class="right">
        <div class="video-container">
          <video id="video0" :src="src[0]" autoPlay :width="width" :height="height" style="margin-right:5px" @dblclick="page(0)"/>
          <video id="video1" :src="src[1]" autoPlay :width="width" :height="height" @dblclick="page(1)"/>
        </div>
        <div class="video-container">
          <video id="video2" :src="src[2]" autoPlay :width="width" :height="height" style="margin-right:5px" @dblclick="page(2)"/>
          <video id="video3" :src="src[3]" autoPlay :width="width" :height="height" @dblclick="page(3)"/>
        </div>
      </div>
    </div>
  </app-container>
</template>

<style lang="scss" scoped>
.left {
  width: 300px;
  height: 100%;
  padding: 10px;
  overflow-y: scroll;

}
.right {
  flex: 1;
  margin-left: 10px;
}
.video-container {
  display: flex;
  flex: 1;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  margin-bottom: 5px;
}
video {
  position: relative;
  object-fit: fill;
  overflow: hidden;
  background: #000;
}
</style>