<template>
  <div class="app-sidebar">
    <!-- Logo区域 -->
    <div class="sidebar-header">
      <div class="logo">
        <router-link to="/" class="logo-link">
          <img src="/logo.svg" :alt="appName" width="32" height="32" />
          <span v-if="!collapsed" class="logo-text">{{ appName }}</span>
        </router-link>
      </div>
    </div>

    <!-- 导航菜单 -->
    <n-menu
      :collapsed="collapsed"
      :collapsed-width="64"
      :collapsed-icon-size="24"
      :options="menuOptions"
      :value="currentRoute"
      @update:value="handleMenuSelect"
    />
  </div>
</template>

<script setup lang="ts">
import { computed, h } from 'vue'
import { useRouter, useRoute } from 'vue-router'
import { NMenu } from 'naive-ui'
import { t } from '../../shared/i18n'
import { useMenuStore, type AppMenuItem } from '../../shared/stores/menu'
import { pageTypeToSlug } from '../../shared/utils/slug'
import DynamicIcon from '../../core/components/DynamicIcon.vue'

interface Props {
  collapsed: boolean
}

defineProps<Props>()

// 定义emit事件
const emit = defineEmits<{
  'menu-select': []
}>()

const router = useRouter()
const route = useRoute()

const currentRoute = computed(() => route.name as string)

const menuStore = useMenuStore()

// 从 localStorage 读取应用名称
const appName = computed(() => localStorage.getItem('appName') || 'Jingrow')

// 根据 parentId 构建树，并在 group 类型上承载二级菜单
type MenuOption = {
  label: string
  key: string
  icon?: any
  children?: MenuOption[]
}

const buildTree = (items: AppMenuItem[]) => {
  const byId: Record<string, AppMenuItem & { children: (AppMenuItem & { children?: any[] })[] }> = {}
  items.forEach((i: AppMenuItem) => (byId[i.id] = { ...(i as any), children: [] }))
  const roots: (AppMenuItem & { children: any[] })[] = []
  items.forEach((i: AppMenuItem) => {
    const pid = (i as any).parentId as string | null | undefined
    if (pid && byId[pid]) byId[pid].children.push(byId[i.id])
    else roots.push(byId[i.id])
  })
  return roots
}

// 默认不自动展开任何二级菜单

const renderIcon = (name?: string, size = 24) =>
  name
    ? () => h(DynamicIcon, { name, size, color: '#64748b', iconLibrary: 'tabler' })
    : undefined

const toMenuOptions = (nodes: (AppMenuItem & { children?: any[] })[]): MenuOption[] =>
  nodes.map((n: any) => ({
    label: t(n.label),
    key: n.id,
    icon: renderIcon(n.icon, 24),
    children: n.children && n.children.length
      ? n.children.map((c: any) => ({
          label: t(c.label),
          key: c.id,
          icon: renderIcon(c.icon, 20),
          children: c.children?.length ? toMenuOptions(c.children as any) : undefined
        }))
      : undefined
  }))

const menuOptions = computed(() => {
  const tree = buildTree(menuStore.visibleItems)
  return toMenuOptions(tree)
})

const handleMenuSelect = (key: string) => {
  // 支持点击任意层级项：在全量 items 中查找
  const menuItem = menuStore.items.find(item => item.id === key)
  if (!menuItem) return
  
  // 发出菜单选择事件，让父组件处理移动端关闭逻辑
  emit('menu-select')
  
  // 根据菜单类型处理导航
  if (menuItem.type === 'pagetype' && menuItem.pagetype) {
    // 页面类型：统一跳转到列表页，由列表页内部判断是否为单页模式
    const slug = pageTypeToSlug(menuItem.pagetype)
    router.push({ name: 'PageTypeList', params: { entity: slug } })
  } else if (menuItem.type === 'route' && menuItem.routeName) {
    // 路由名：使用routeName字段
    router.push({ name: menuItem.routeName })
  } else if (menuItem.type === 'url' && menuItem.url) {
    // URL：直接使用url字段
    if (menuItem.url.startsWith('http://') || menuItem.url.startsWith('https://')) {
      // 外部链接，在新窗口打开
      window.open(menuItem.url, '_blank')
    } else {
      // 内部链接，使用router跳转
      router.push(menuItem.url)
    }
  } else {
    // 新增：Workspace 类型
    if (menuItem.type === 'workspace' && menuItem.workspaceName) {
      const slug = pageTypeToSlug(menuItem.workspaceName)
      router.push(`/workspace/${slug}`)
      return
    }
    // 兼容旧版本：优先使用url字段，如果没有则使用routeName
    if (menuItem.url) {
      if (menuItem.url.startsWith('http://') || menuItem.url.startsWith('https://')) {
        window.open(menuItem.url, '_blank')
      } else {
        router.push(menuItem.url)
      }
    } else if (menuItem.routeName) {
      router.push({ name: menuItem.routeName })
    }
  }
}
</script>

<style scoped>
.app-sidebar {
  height: 100%;
  display: flex;
  flex-direction: column;
}

.sidebar-header {
  padding: 16px;
  border-bottom: 1px solid var(--border-color);
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 700;
  color: #1f2937;
}

.logo-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: inherit;
  text-decoration: none;
}

.logo-text {
  white-space: nowrap;
}

/* 菜单图标样式优化 */
:deep(.n-menu-item-content) {
  transition: all 0.2s ease;
}

:deep(.n-menu-item-content:hover) {
  background-color: rgba(24, 160, 88, 0.1);
}

:deep(.n-menu-item-content.n-menu-item-content--selected) {
  background-color: rgba(24, 160, 88, 0.15);
}

:deep(.n-menu-item-content.n-menu-item-content--selected .n-icon) {
  color: #18a058 !important;
}

:deep(.n-menu-item-content:hover .n-icon) {
  color: #18a058 !important;
  transform: scale(1.1);
}
</style>
