<template>
  <div class="sidebar-layout">
    <!-- 顶部导航栏 -->
    <TopNavigation />

    <!-- 主内容区域 -->
    <div class="layout-content">
      <!-- 侧边栏和内容 -->
      <div class="content-wrapper" v-if="hasSidebarMenus">
        <!-- 侧边栏 -->
        <aside class="sidebar" :class="{ collapsed: sidebarCollapsed }">
          <div class="sidebar-toggle-btn" @click="toggleSidebar">
            <i class="toggle-icon">{{ sidebarCollapsed ? '▶' : '◀' }}</i>
          </div>

          <nav class="sidebar-nav">
            <MenuSidebar
              :menus="sidebarMenus"
              :collapsed="sidebarCollapsed"
              @menu-click="handleMenuClick"
            />
          </nav>
        </aside>

        <!-- 页面内容 -->
        <main class="main-content">
          <router-view />
        </main>
      </div>

      <!-- 没有侧边栏时直接显示内容 -->
      <div class="content-wrapper-full" v-else>
        <main class="main-content-full">
          <router-view />
        </main>
      </div>
    </div>
  </div>
</template>

<script setup lang="ts">
import { ref, computed } from 'vue';
import { useRoute, useRouter } from 'vue-router';
import { useStore } from 'vuex';
import type { SysMenu } from '@/types';
import { MenuType } from '@/types/enums';
import { TopNavigation, MenuSidebar } from '@/components';

const route = useRoute();
const router = useRouter();
const store = useStore();

const sidebarCollapsed = ref(false);

// 获取所有菜单
const allMenus = computed(() => store.getters['auth/menuTree']);

// 获取所有顶层SIDEBAR菜单作为侧边栏
const sidebarMenus = computed(() => {
  // 严格过滤：type=SIDEBAR 且 layout='SidebarLayout' 的顶层菜单
  return allMenus.value.filter((menu: SysMenu) => 
    menu.type === MenuType.SIDEBAR && 
    !menu.parentID && 
    (menu as any).layout === 'SidebarLayout'
  );
});

// 是否有侧边栏菜单
const hasSidebarMenus = computed(() => sidebarMenus.value.length > 0);

// 切换侧边栏
function toggleSidebar() {
  sidebarCollapsed.value = !sidebarCollapsed.value;
  localStorage.setItem('sidebarCollapsed', String(sidebarCollapsed.value));
}

// 处理菜单点击
function handleMenuClick(menu: SysMenu) {
  if (menu.url && menu.url !== route.path) {
    router.push(menu.url);
  }
}

// 恢复侧边栏状态
const savedState = localStorage.getItem('sidebarCollapsed');
if (savedState !== null) {
  sidebarCollapsed.value = savedState === 'true';
}
</script>

<style lang="scss" scoped>
.sidebar-layout {
  display: flex;
  flex-direction: column;
  background: #f0f2f5;
}

.layout-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  max-height: calc(100vh - 76px);
  overflow-y: auto;
}

.content-wrapper {
  flex: 1;
  display: flex;
  margin: 16px;
  gap: 16px;
}

.sidebar {
  width: 260px;
  background: #001529;
  border-radius: 4px;
  box-shadow: 0 1px 4px rgba(0, 21, 41, 0.08);
  transition: width 0.3s ease;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  position: relative;
  max-height: calc(100vh - 108px); // 顶部导航76px + 上下边距32px
  overflow: hidden;

  &.collapsed {
    width: 80px;
  }
}

.sidebar-toggle-btn {
  position: absolute;
  top: 50%;
  right: -12px;
  width: 24px;
  height: 48px;
  background: white;
  border: 1px solid #e8e8e8;
  border-radius: 0 12px 12px 0;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  transition: all 0.3s;

  &:hover {
    background: #f0f2f5;
  }

  .toggle-icon {
    font-size: 12px;
    color: #666;
  }
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 16px 0;
  
  // 美化滚动条
  &::-webkit-scrollbar {
    width: 6px;
  }
  
  &::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 3px;
  }
  
  &::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 3px;
    
    &:hover {
      background: rgba(255, 255, 255, 0.3);
    }
  }
}

.main-content {
  flex: 1;
  background: white;
  border-radius: 4px;
  box-shadow: 0 1px 4px rgba(0, 21, 41, 0.08);
  overflow-y: auto;
  min-width: 0;
  height: calc(100vh - 108px); // 固定高度：视口高度 - 顶部导航76px - 上下边距32px
  max-height: calc(100vh - 108px);
  
  // 美化滚动条
  &::-webkit-scrollbar {
    width: 8px;
  }
  
  &::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
  }
  
  &::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
    
    &:hover {
      background: #a8a8a8;
    }
  }
}

.content-wrapper-full {
  flex: 1;
}

.main-content-full {
  background: white;
  border-radius: 4px;
  box-shadow: 0 1px 4px rgba(0, 21, 41, 0.08);
  height: calc(100vh - 108px);
  overflow-y: auto;
  
  // 美化滚动条
  &::-webkit-scrollbar {
    width: 8px;
  }
  
  &::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
  }
  
  &::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
    
    &:hover {
      background: #a8a8a8;
    }
  }
}
</style>

