<template>
  <el-container class="app-root">
    <el-aside width="220px" class="app-aside">
      <div class="app-logo">
        <span class="app-logo-title">MangTool</span>
        <span class="app-logo-sub">音乐工具箱</span>
      </div>
      <el-menu
        :default-active="activeKey"
        class="app-menu"
        @select="handleSelect"
      >
        <el-menu-item
          v-for="tab in tabs"
          :key="tab.key"
          :index="tab.key"
        >
          {{ tab.menuLabel }}
        </el-menu-item>
      </el-menu>
    </el-aside>

    <el-container>
      <el-header class="app-header">
        <div class="app-header-title">
          <h1>{{ currentTitle }}</h1>
          <p>{{ currentSubtitle }}</p>
        </div>
        <div class="app-header-meta">
          <span class="app-header-index">{{ currentTab.badge }}</span>
          <span class="app-header-helper">执行面板</span>
        </div>
      </el-header>
      <el-main class="app-main">
        <component :is="currentComponent" />
      </el-main>
    </el-container>
  </el-container>
</template>

<script setup lang="ts">
import { computed, defineAsyncComponent, ref } from 'vue';
import type { Component } from 'vue';

const AggregateTab = defineAsyncComponent(() => import('./components/AggregateTab.vue'));
const ConvertTab = defineAsyncComponent(() => import('./components/ConvertTab.vue'));
const DedupTab = defineAsyncComponent(() => import('./components/DedupTab.vue'));
const TraditionalFilterTab = defineAsyncComponent(() => import('./components/TraditionalFilterTab.vue'));
const RenameTab = defineAsyncComponent(() => import('./components/RenameTab.vue'));
const MergeTab = defineAsyncComponent(() => import('./components/MergeTab.vue'));
const SettingsTab = defineAsyncComponent(() => import('./components/SettingsTab.vue'));

type TabKey =
  | 'aggregate'
  | 'convert'
  | 'dedup'
  | 'zhconvert'
  | 'organize'
  | 'merge'
  | 'settings';

interface TabDefinition {
  key: TabKey;
  menuLabel: string;
  badge: string;
  title: string;
  subtitle: string;
  component: Component;
}

const tabs: TabDefinition[] = [
  {
    key: 'aggregate',
    menuLabel: '01 音频文件汇聚',
    badge: 'STEP 01',
    title: '01 · 音频文件汇聚',
    subtitle: '将分散音频扁平化汇聚，为后续处理统一入口。',
    component: AggregateTab
  },
  {
    key: 'convert',
    menuLabel: '02 音频格式智能处理',
    badge: 'STEP 02',
    title: '02 · 音频格式智能处理',
    subtitle: '智能识别无损/有损格式并统一转码为 FLAC。',
    component: ConvertTab
  },
  {
    key: 'dedup',
    menuLabel: '03 音乐去重',
    badge: 'STEP 03',
    title: '03 · 音乐去重',
    subtitle: '基于 MD5 与元数据的双重策略进行音乐去重。',
    component: DedupTab
  },
  {
    key: 'zhconvert',
    menuLabel: '04 元数据繁简转换',
    badge: 'STEP 04',
    title: '04 · 音乐元数据繁体转简体',
    subtitle: '批量检测并转换标签中的繁体中文。',
    component: TraditionalFilterTab
  },
  {
    key: 'organize',
    menuLabel: '05 音乐整理',
    badge: 'STEP 05',
    title: '05 · 音乐整理',
    subtitle: '按 Navidrome 规范重命名与整理目录结构。',
    component: RenameTab
  },
  {
    key: 'merge',
    menuLabel: '06 整理入库',
    badge: 'STEP 06',
    title: '06 · 整理入库',
    subtitle: '将整理好的 staging 目录智能合并入主库。',
    component: MergeTab
  },
  {
    key: 'settings',
    menuLabel: '全局设置',
    badge: 'CONFIG',
    title: '全局配置与路径设置',
    subtitle: '配置全局工作目录与各阶段标准子目录。',
    component: SettingsTab
  }
];

const tabMap = tabs.reduce((acc, tab) => {
  acc[tab.key] = tab;
  return acc;
}, {} as Record<TabKey, TabDefinition>);

const activeKey = ref<TabKey>('aggregate');

const currentTab = computed(() => tabMap[activeKey.value] || tabs[0]);
const currentComponent = computed(() => currentTab.value.component);
const currentTitle = computed(() => currentTab.value.title);
const currentSubtitle = computed(() => currentTab.value.subtitle);

function handleSelect(key: string) {
  activeKey.value = key as TabKey;
}
</script>

<style scoped>
.app-root {
  min-height: 100vh;
  padding: 18px;
  background:
    radial-gradient(circle at 12% 12%, rgba(15, 118, 110, 0.13), transparent 45%),
    radial-gradient(circle at 78% 4%, rgba(14, 116, 144, 0.16), transparent 40%),
    linear-gradient(145deg, #f8fbff 0%, #f3f7fd 42%, #eef5fa 100%);
}

.app-aside {
  margin-right: 14px;
  border: 1px solid rgba(148, 163, 184, 0.28);
  border-radius: 20px;
  padding: 18px 12px;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(12px);
  box-shadow:
    0 20px 45px -30px rgba(15, 23, 42, 0.45),
    inset 0 1px 0 rgba(255, 255, 255, 0.6);
  display: flex;
  flex-direction: column;
}

.app-logo {
  padding: 2px 14px 16px;
  border-bottom: 1px solid rgba(148, 163, 184, 0.26);
  margin-bottom: 14px;
}

.app-logo-title {
  display: block;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0.4px;
  color: #0f172a;
}

.app-logo-sub {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  letter-spacing: 1.3px;
  text-transform: uppercase;
  color: #475569;
}

.app-menu {
  flex: 1;
  border-right: none;
}

.app-menu :deep(.el-menu-item) {
  height: 44px;
  line-height: 44px;
  border-radius: 11px;
  margin: 2px 6px;
  color: #334155;
  transition: all 0.2s ease;
}

.app-menu :deep(.el-menu-item:hover) {
  color: #0f172a;
  background: rgba(15, 118, 110, 0.08);
}

.app-menu :deep(.el-menu-item.is-active) {
  color: #0f766e;
  font-weight: 600;
  background: linear-gradient(95deg, rgba(15, 118, 110, 0.14), rgba(14, 116, 144, 0.07));
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 88px;
  padding: 0 26px;
  border: 1px solid rgba(148, 163, 184, 0.22);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(10px);
  box-shadow: 0 16px 35px -30px rgba(15, 23, 42, 0.45);
}

.app-header-title h1 {
  margin: 0;
  font-size: 22px;
  font-weight: 700;
  color: #0f172a;
}

.app-header-title p {
  margin: 6px 0 0;
  font-size: 14px;
  color: #475569;
}

.app-header-meta {
  display: flex;
  align-items: center;
  gap: 10px;
}

.app-header-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 30px;
  padding: 0 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.8px;
  color: #0b5f59;
  background: rgba(15, 118, 110, 0.12);
}

.app-header-helper {
  font-size: 13px;
  color: #64748b;
}

.app-main {
  margin-top: 14px;
  border-radius: 18px;
  padding: 20px;
  background: rgba(255, 255, 255, 0.66);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

@media (max-width: 992px) {
  .app-root {
    padding: 12px;
  }

  .app-aside {
    width: 100% !important;
    margin-right: 0;
    margin-bottom: 12px;
  }

  .app-header {
    padding: 16px;
    min-height: auto;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .app-main {
    margin-top: 10px;
    padding: 14px;
  }
}
</style>
