<template>
  <view class="header">
    <view class="header-left">
      <!-- 移动端菜单切换按钮 (CSS 控制显隐) -->
      <view class="menu-toggle mobile-only" @click="onToggleSubSider">
        <text class="menu-icon">☰</text>
      </view>

      <!-- Desktop/Tablet Hamburger (1:1 复刻 CRMEB 切换二级侧边栏) -->
      <view class="menu-toggle desktop-only" @click="onToggleSubSider">
        <text class="menu-icon">☰</text>
      </view>

      <view class="breadcrumb-container desktop-only">
        <text class="crumb" v-for="(item, index) in breadcrumb" :key="item.id">
          {{ item.title }}
          <text v-if="index < breadcrumb.length - 1" class="separator"> / </text>
        </text>
      </view>
      
      <!-- 移动端简单标题 (CSS 控制显隐) -->
      <text class="mobile-title mobile-only">{{ currentTitle }}</text>
    </view>

    <view class="header-right">
      <view class="hbtn" @click="$emit('search')"><text>🔍</text></view>
      <view v-if="!isMobile" class="hbtn" @click="$emit('refresh')"><text>⟳</text></view>
      <view class="hbtn" @click="$emit('notify')">
        <text>🔔</text>
        <view class="dot" v-if="hasNotification"></view>
      </view>
    </view>
  </view>
</template>

<script setup lang="uts">
import { computed } from 'vue'
import { 
  toggleSubSider, 
  showSubSider, 
  layoutMode, 
  isOverlayVisible,
  isMobileMenuOpen 
} from '@/layouts/admin/store/adminNavStore.uts'

const props = defineProps<{
  breadcrumb: Array<{id: string, title: string}>
  hasNotification: boolean
  isMobile: boolean
}>()

defineEmits<{
  (e:'search'): void
  (e:'refresh'): void
  (e:'notify'): void
  (e:'toggle-mobile-menu'): void
}>()

/**
 * 核心切换逻辑：
 * 1. Desktop: 切换 showSubSider (Dock状态)
 * 2. Tablet: 切换 isOverlayVisible (Overlay状态)
 * 3. Mobile: 切换 isMobileMenuOpen (Mobile Aside)
 */
function onToggleSubSider(): void {
  if (layoutMode.value === 'desktop') {
    toggleSubSider()
  } else if (layoutMode.value === 'tablet') {
    isOverlayVisible.value = !isOverlayVisible.value
  } else {
    isMobileMenuOpen.value = !isMobileMenuOpen.value
  }
}

const currentTitle = computed((): string => {
  if (props.breadcrumb.length > 0) {
    return props.breadcrumb[props.breadcrumb.length - 1].title
  }
  return '管理后台'
})
</script>

<style>
.header{
  height: 56px;
  background:#fff;
  border-bottom: 1px solid #eef2f7;
  display:flex;
  flex-direction:row;
  align-items:center;
  justify-content: space-between;
  padding: 0 16px;
}

.header-left {
  display: flex;
  flex-direction: row;
  align-items: center;
}

.menu-toggle {
  margin-right: 12px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.menu-icon {
  font-size: 20px;
  color: #333;
}

.mobile-title {
  font-size: 16px;
  font-weight: 500;
  color: #333;
}

.breadcrumb-container {
  display: flex;
  flex-direction: row;
  align-items: center;
}

.crumb { 
  color: #374151; 
  font-size: 14px; 
}

/* 响应式控制 */
.mobile-only {
  display: none;
}

@media screen and (max-width: 768px) {
  .desktop-only {
    display: none !important;
  }
  .mobile-only {
    display: flex !important;
  }
  .header-right {
    gap: 5px;
  }
}

.separator {
  color: #d1d5db;
  margin: 0 8px;
}

.header-right{ 
  display:flex; 
  flex-direction:row;
  align-items:center; 
  gap: 10px; 
}
.hbtn{
  width: 34px;
  height: 34px;
  border-radius: 8px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:#f6f7fb;
  position: relative;
}
.dot{
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background:#ff4d4f;
  position:absolute;
  top: 6px;
  right: 6px;
}
</style>
