<template>
	<el-breadcrumb class="app-breadcrumb" separator-class="el-icon-arrow-right">
		<transition-group name="breadcrumb">
			<el-breadcrumb-item v-for="(item, index) in breadcrumbs" :key="item.path">
				<span v-if="item.redirect === 'noredirect' || index === breadcrumbs.length - 1" class="no-redirect">{{
						generateTitle(item.meta.title)
					}}</span>
				<a v-else @click.prevent="handleLink(item)">
					{{ generateTitle(item.meta.title) }}
				</a>
			</el-breadcrumb-item>
		</transition-group>
	</el-breadcrumb>
</template>

<script setup lang="ts">
import { onBeforeMount, ref, watch } from 'vue'
import { useRoute, RouteLocationMatched } from 'vue-router'
// import { compile } from 'path-to-regexp'
import router from '@/router'
import { generateTitle } from '@/utils/i18n'

const currentRoute = useRoute()
// const pathCompile = (path: string) => {
// 	const { params } = currentRoute
// 	const toPath = compile(path)
// 	return toPath(params)
// }

const breadcrumbs = ref([] as Array<RouteLocationMatched>)

function getBreadcrumb() {
	// console.error(currentRoute, 'currentRoute')
	let matched = currentRoute.matched.filter(item => item.meta && item.meta.title)
	const first = matched[0]
	if (!isDashboard(first)) {
		matched = [{ path: '/dashboard', meta: { title: 'dashboard' } } as any].concat(matched)
	}
	breadcrumbs.value = matched
	//   .filter(item => {
	// 	return item.meta && item.meta.title && item.meta.breadcrumb !== false
	// })
}

function isDashboard(route: RouteLocationMatched) {
	const name = route && route.name
	if (!name) {
		return false
	}
	return name.toString().trim().toLocaleLowerCase() === 'Dashboard'.toLocaleLowerCase()
}

function handleLink(item: any) {
	const { redirect, path } = item
	if (redirect) {
		router.push(redirect).catch(err => {
			console.warn(err)
		})
		return
	}
	// router.push(pathCompile(path)).catch(err => {
	router.push(path).catch(err => {
		console.warn(err)
	})
}

watch(
	() => currentRoute.path,
	path => {
		if (path.startsWith('/redirect/')) {
			return
		}
		getBreadcrumb()
	}
)

onBeforeMount(() => {
	getBreadcrumb()
})
</script>

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

	.no-redirect {
		color: #97a8be;
		cursor: text;
	}
}*/
</style>
