<template>
  <el-breadcrumb class="breadcrumb" separator="/">
    <transition-group name="breadcrumb">
      <el-breadcrumb-item
        v-for="(item, index) in breadcrumbData"
        :key="item.path"
      >
        <!-- 不可点击 -->
        <span class="no-redirect" v-if="index === breadcrumbData.length - 1">
          {{ item.meta.title }}
        </span>
        <!-- 可点击 -->
        <span class="redirect" v-else @click.prevent="onLinkClick(item)">
          {{ item.meta.title }}
        </span>
      </el-breadcrumb-item>
    </transition-group>
  </el-breadcrumb>
</template>

<script setup>
import { ref, watch } from 'vue'
import { useRouter, useRoute } from 'vue-router'
import { useStore } from 'vuex'

const route = useRoute()
//生成数组数据
const breadcrumbData = ref([])
const getBreadcrumbData = () => {
  //当前路由标准化记录（包括父级）
  breadcrumbData.value = route.matched.filter(
    (item) => item.meta && item.meta.title
  )
}
//监听路由变化
watch(
  route,
  () => {
    getBreadcrumbData()
  },
  { immediate: true }
)

//跳转点击事件
const router = useRouter()
const onLinkClick = (item) => {
  console.log('item', item)
  router.push(item.path)
}

//将来需要主题色替换
const store = useStore()
const linkHoverColor = ref(store.getters.cssVar.menuBg)
</script>

<style lang="scss" scoped>
.breadcrumb {
  display: inline-block;
  font-size: 14px;
  line-height: 50px;
  margin-left: 8px;

  .redirect {
    color: #666;
    font-weight: 600;
    cursor: pointer;
  }
  .redirect:hover {
    color: v-bind(linkHoverColor);
  }
  :deep(.no-direct) {
    color: #92a8be;
    cursor: text;
  }
}
</style>
