# MQTT 智能家居管理系统 - 前端实现计划

> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.

**Goal:** 使用 Vue 3 + Tailwind CSS 构建响应式 SPA 前端，连接后端 REST API 和 WebSocket，实现设备管理、仪表盘、Broker 管理三大页面。

**Architecture:** Vue 3 Composition API + Vite 构建工具，Pinia 状态管理（WebSocket 实时更新设备状态），通过 API 模块与后端 FastAPI 通信，Vite 配置代理解决开发跨域。

**Tech Stack:** Vue 3, Vite, Tailwind CSS 3, Pinia, Vue Router 4, @heroicons/vue

---

## 后端 API 接口参考

前端需要对接的后端 API（已在后端实现中就绪）：

| 方法 | 路径 | 返回类型 |
|------|------|----------|
| GET | `/api/devices` | `DeviceResponse[]` |
| POST | `/api/devices` | `DeviceResponse` (body: `{name, type, mqtt_topic, command_topic?}`) |
| GET | `/api/devices/{id}` | `DeviceResponse` |
| PUT | `/api/devices/{id}` | `DeviceResponse` (body: `{name?, type?, command_topic?}`) |
| DELETE | `/api/devices/{id}` | 204 |
| POST | `/api/devices/{id}/command` | `DeviceLogResponse` (body: `{payload: string}`) |
| GET | `/api/devices/{id}/logs` | `DeviceLogResponse[]` |
| GET | `/api/broker/status` | `{status, metrics}` |
| GET | `/api/broker/clients` | `BrokerClient[]` |
| GET | `/api/broker/topics` | `BrokerTopic[]` |
| GET | `/api/dashboard` | `DashboardStats` |
| GET | `/health` | `{status, mqtt_connected}` |
| WS | `/ws/devices` | `{type:"device_update", device_id, state, is_online, last_seen}` |

---

## 文件结构总览

```
frontend/
├── index.html
├── package.json
├── vite.config.js
├── tailwind.config.js
├── postcss.config.js
├── src/
│   ├── main.js              # 入口：创建 app、router、pinia
│   ├── App.vue              # 根组件：布局 + 侧边栏
│   ├── style.css            # Tailwind 导入
│   ├── api/
│   │   └── index.js         # HTTP 请求封装（fetch）
│   ├── composables/
│   │   └── useWebSocket.js  # WebSocket 连接与自动重连
│   ├── stores/
│   │   └── devices.js       # Pinia store：设备列表 + 实时更新
│   ├── router/
│   │   └── index.js         # Vue Router 路由配置
│   ├── components/
│   │   ├── DeviceCard.vue       # 设备卡片（列表页用）
│   │   ├── DeviceControl.vue    # 设备控制面板（详情页用，按类型自适应）
│   │   ├── DeviceLogList.vue    # 消息日志列表
│   │   ├── StatsCard.vue        # 统计数字卡片
│   │   ├── AddDeviceModal.vue   # 添加设备弹窗
│   │   └── Sidebar.vue          # 侧边导航栏
│   └── views/
│       ├── DashboardView.vue    # 仪表盘页面
│       ├── DevicesView.vue      # 设备列表页面
│       ├── DeviceDetailView.vue # 设备详情页面
│       └── BrokerView.vue       # Broker 管理页面
```

---

### Task 1: Vue 项目初始化与配置

**Files:**
- Create: `frontend/package.json`
- Create: `frontend/vite.config.js`
- Create: `frontend/tailwind.config.js`
- Create: `frontend/postcss.config.js`
- Create: `frontend/index.html`
- Create: `frontend/src/main.js`
- Create: `frontend/src/App.vue`
- Create: `frontend/src/style.css`

- [ ] **Step 1: 创建 `frontend/package.json`**

```json
{
  "name": "mqtt-home-frontend",
  "private": true,
  "version": "0.1.0",
  "type": "module",
  "scripts": {
    "dev": "vite",
    "build": "vite build",
    "preview": "vite preview"
  },
  "dependencies": {
    "vue": "^3.5.0",
    "vue-router": "^4.4.0",
    "pinia": "^2.2.0",
    "@heroicons/vue": "^2.2.0"
  },
  "devDependencies": {
    "@vitejs/plugin-vue": "^5.1.0",
    "vite": "^5.4.0",
    "tailwindcss": "^3.4.0",
    "postcss": "^8.4.0",
    "autoprefixer": "^10.4.0"
  }
}
```

- [ ] **Step 2: 创建 `frontend/vite.config.js`**

```javascript
import { defineConfig } from 'vite'
import vue from '@vitejs/plugin-vue'

export default defineConfig({
  plugins: [vue()],
  server: {
    port: 3000,
    proxy: {
      '/api': 'http://localhost:8000',
      '/ws': {
        target: 'http://localhost:8000',
        ws: true,
      },
      '/health': 'http://localhost:8000',
    },
  },
  build: {
    outDir: 'dist',
  },
})
```

- [ ] **Step 3: 创建 `frontend/tailwind.config.js`**

```javascript
/** @type {import('tailwindcss').Config} */
export default {
  content: ['./index.html', './src/**/*.{vue,js,ts}'],
  theme: {
    extend: {
      colors: {
        primary: {
          50: '#eff6ff',
          100: '#dbeafe',
          500: '#3b82f6',
          600: '#2563eb',
          700: '#1d4ed8',
        },
      },
    },
  },
  plugins: [],
}
```

- [ ] **Step 4: 创建 `frontend/postcss.config.js`**

```javascript
export default {
  plugins: {
    tailwindcss: {},
    autoprefixer: {},
  },
}
```

- [ ] **Step 5: 创建 `frontend/index.html`**

```html
<!DOCTYPE html>
<html lang="zh-CN">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>MQTT Home</title>
  </head>
  <body class="bg-gray-50 min-h-screen">
    <div id="app"></div>
    <script type="module" src="/src/main.js"></script>
  </body>
</html>
```

- [ ] **Step 6: 创建 `frontend/src/style.css`**

```css
@tailwind base;
@tailwind components;
@tailwind utilities;

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}
```

- [ ] **Step 7: 创建 `frontend/src/main.js`**

```javascript
import { createApp } from 'vue'
import { createPinia } from 'pinia'
import App from './App.vue'
import router from './router'
import './style.css'

const app = createApp(App)
app.use(createPinia())
app.use(router)
app.mount('#app')
```

- [ ] **Step 8: 创建 `frontend/src/App.vue`**

```vue
<template>
  <div class="flex min-h-screen">
    <Sidebar />
    <main class="flex-1 p-6 overflow-auto">
      <router-view />
    </main>
  </div>
</template>

<script setup>
import Sidebar from './components/Sidebar.vue'
</script>
```

- [ ] **Step 9: 创建占位 `frontend/src/router/index.js`**

```javascript
import { createRouter, createWebHistory } from 'vue-router'

const router = createRouter({
  history: createWebHistory(),
  routes: [
    { path: '/', redirect: '/dashboard' },
    {
      path: '/dashboard',
      name: 'Dashboard',
      component: () => import('../views/DashboardView.vue'),
    },
    {
      path: '/devices',
      name: 'Devices',
      component: () => import('../views/DevicesView.vue'),
    },
    {
      path: '/devices/:id',
      name: 'DeviceDetail',
      component: () => import('../views/DeviceDetailView.vue'),
    },
    {
      path: '/broker',
      name: 'Broker',
      component: () => import('../views/BrokerView.vue'),
    },
  ],
})

export default router
```

- [ ] **Step 10: 创建占位页面文件**

创建以下 4 个最小占位文件：

`frontend/src/views/DashboardView.vue`:
```vue
<template><div>Dashboard</div></template>
```

`frontend/src/views/DevicesView.vue`:
```vue
<template><div>Devices</div></template>
```

`frontend/src/views/DeviceDetailView.vue`:
```vue
<template><div>Device Detail</div></template>
```

`frontend/src/views/BrokerView.vue`:
```vue
<template><div>Broker</div></template>
```

创建 `frontend/src/components/Sidebar.vue`:
```vue
<template>
  <aside class="w-56 bg-white shadow-sm border-r border-gray-200 flex flex-col">
    <div class="p-4 border-b border-gray-200">
      <h1 class="text-xl font-bold text-primary-700">MQTT Home</h1>
    </div>
    <nav class="flex-1 p-2 space-y-1">
      <router-link
        v-for="item in navItems"
        :key="item.path"
        :to="item.path"
        class="flex items-center gap-2 px-3 py-2 rounded-lg text-sm font-medium transition-colors"
        :class="isActive(item.path) ? 'bg-primary-50 text-primary-700' : 'text-gray-600 hover:bg-gray-100'"
      >
        <component :is="item.icon" class="w-5 h-5" />
        {{ item.label }}
      </router-link>
    </nav>
    <div class="p-3 border-t border-gray-200">
      <div class="flex items-center gap-2 text-xs text-gray-500">
        <span class="w-2 h-2 rounded-full" :class="connected ? 'bg-green-500' : 'bg-red-500'"></span>
        {{ connected ? 'MQTT 已连接' : 'MQTT 未连接' }}
      </div>
    </div>
  </aside>
</template>

<script setup>
import { ref, onMounted } from 'vue'
import { useRoute } from 'vue-router'
import { HomeIcon, CpuChipIcon, ServerIcon } from '@heroicons/vue/24/outline'

const route = useRoute()
const connected = ref(false)

const navItems = [
  { path: '/dashboard', label: '仪表盘', icon: HomeIcon },
  { path: '/devices', label: '设备管理', icon: CpuChipIcon },
  { path: '/broker', label: 'Broker', icon: ServerIcon },
]

function isActive(path) {
  return route.path.startsWith(path) && path !== '/'
}

onMounted(async () => {
  try {
    const res = await fetch('/health')
    const data = await res.json()
    connected.value = data.mqtt_connected
  } catch {
    connected.value = false
  }
})
</script>
```

- [ ] **Step 11: 安装依赖并验证构建**

Run: `cd frontend && npm install`
Run: `cd frontend && npm run dev` (后台启动验证无报错)
Expected: Vite 启动成功，浏览器访问 localhost:3000 显示侧边栏和路由页面

- [ ] **Step 12: 提交**

```bash
git add frontend/
git commit -m "feat: Vue 3 project scaffolding with Tailwind, Router, Pinia, and Sidebar"
```

---

### Task 2: API 客户端模块

**Files:**
- Create: `frontend/src/api/index.js`

- [ ] **Step 1: 创建 `frontend/src/api/index.js`**

```javascript
const BASE_URL = '/api'

async function request(path, options = {}) {
  const url = `${BASE_URL}${path}`
  const config = {
    headers: {
      'Content-Type': 'application/json',
      ...options.headers,
    },
    ...options,
  }
  if (config.body && typeof config.body === 'object') {
    config.body = JSON.stringify(config.body)
  }
  const res = await fetch(url, config)
  if (!res.ok) {
    const error = new Error(`API error: ${res.status}`)
    error.status = res.status
    try {
      error.data = await res.json()
    } catch {
      error.data = await res.text()
    }
    throw error
  }
  if (res.status === 204) return null
  return res.json()
}

// Devices
export const getDevices = () => request('/devices')
export const createDevice = (data) => request('/devices', { method: 'POST', body: data })
export const getDevice = (id) => request(`/devices/${id}`)
export const updateDevice = (id, data) => request(`/devices/${id}`, { method: 'PUT', body: data })
export const deleteDevice = (id) => request(`/devices/${id}`, { method: 'DELETE' })
export const sendCommand = (id, payload) =>
  request(`/devices/${id}/command`, { method: 'POST', body: { payload } })
export const getDeviceLogs = (id, limit = 20) => request(`/devices/${id}/logs?limit=${limit}`)

// Broker
export const getBrokerStatus = () => request('/broker/status')
export const getBrokerClients = () => request('/broker/clients')
export const getBrokerTopics = () => request('/broker/topics')

// Dashboard
export const getDashboardStats = () => request('/dashboard')
```

- [ ] **Step 2: 提交**

```bash
git add frontend/src/api/
git commit -m "feat: API client module for all backend endpoints"
```

---

### Task 3: WebSocket 组合式函数

**Files:**
- Create: `frontend/src/composables/useWebSocket.js`

- [ ] **Step 1: 创建 `frontend/src/composables/useWebSocket.js`**

```javascript
import { ref, onMounted, onUnmounted } from 'vue'

export function useWebSocket(url, onMessage) {
  const connected = ref(false)
  let ws = null
  let reconnectTimer = null
  let retryDelay = 1000

  function connect() {
    const protocol = window.location.protocol === 'https:' ? 'wss:' : 'ws:'
    const fullUrl = `${protocol}//${window.location.host}${url}`

    ws = new WebSocket(fullUrl)

    ws.onopen = () => {
      connected.value = true
      retryDelay = 1000
    }

    ws.onmessage = (event) => {
      try {
        const data = JSON.parse(event.data)
        onMessage(data)
      } catch {
        // ignore non-JSON messages
      }
    }

    ws.onclose = () => {
      connected.value = false
      reconnectTimer = setTimeout(connect, retryDelay)
      retryDelay = Math.min(retryDelay * 2, 30000)
    }

    ws.onerror = () => {
      ws.close()
    }
  }

  onMounted(() => connect())

  onUnmounted(() => {
    clearTimeout(reconnectTimer)
    if (ws) ws.close()
  })

  return { connected }
}
```

- [ ] **Step 2: 提交**

```bash
git add frontend/src/composables/
git commit -m "feat: WebSocket composable with auto-reconnect"
```

---

### Task 4: Pinia 设备 Store

**Files:**
- Create: `frontend/src/stores/devices.js`

- [ ] **Step 1: 创建 `frontend/src/stores/devices.js`**

```javascript
import { defineStore } from 'pinia'
import { ref } from 'vue'
import { getDevices, createDevice, deleteDevice, sendCommand as apiSendCommand } from '../api'
import { useWebSocket } from '../composables/useWebSocket'

export const useDeviceStore = defineStore('devices', () => {
  const devices = ref([])
  const loading = ref(false)
  const wsConnected = ref(false)

  async function fetchDevices() {
    loading.value = true
    try {
      devices.value = await getDevices()
    } finally {
      loading.value = false
    }
  }

  async function addDevice(data) {
    const device = await createDevice(data)
    devices.value.unshift(device)
    return device
  }

  async function removeDevice(id) {
    await deleteDevice(id)
    devices.value = devices.value.filter((d) => d.id !== id)
  }

  async function sendCommand(id, payload) {
    return await apiSendCommand(id, payload)
  }

  function handleWsMessage(data) {
    if (data.type !== 'device_update') return
    const idx = devices.value.findIndex((d) => d.id === data.device_id)
    if (idx === -1) return
    const device = devices.value[idx]
    devices.value.splice(idx, 1, {
      ...device,
      state: data.state,
      is_online: data.is_online,
      last_seen: data.last_seen,
    })
  }

  // Initialize WebSocket
  const { connected } = useWebSocket('/ws/devices', handleWsMessage)
  wsConnected.value = connected

  return {
    devices,
    loading,
    wsConnected,
    fetchDevices,
    addDevice,
    removeDevice,
    sendCommand,
  }
})
```

- [ ] **Step 2: 提交**

```bash
git add frontend/src/stores/
git commit -m "feat: Pinia device store with WebSocket real-time updates"
```

---

### Task 5: 仪表盘页面

**Files:**
- Create: `frontend/src/components/StatsCard.vue`
- Modify: `frontend/src/views/DashboardView.vue`

- [ ] **Step 1: 创建 `frontend/src/components/StatsCard.vue`**

```vue
<template>
  <div class="bg-white rounded-xl shadow-sm border border-gray-200 p-5">
    <div class="flex items-center justify-between">
      <div>
        <p class="text-sm text-gray-500">{{ label }}</p>
        <p class="mt-1 text-3xl font-semibold" :class="color">{{ value }}</p>
      </div>
      <div class="w-12 h-12 rounded-lg flex items-center justify-center" :class="bgColor">
        <component :is="icon" class="w-6 h-6" :class="iconColor" />
      </div>
    </div>
  </div>
</template>

<script setup>
defineProps({
  label: { type: String, required: true },
  value: { type: [Number, String], required: true },
  icon: { type: Object, required: true },
  color: { type: String, default: 'text-gray-900' },
  bgColor: { type: String, default: 'bg-gray-100' },
  iconColor: { type: String, default: 'text-gray-600' },
})
</script>
```

- [ ] **Step 2: 替换 `frontend/src/views/DashboardView.vue`**

```vue
<template>
  <div>
    <h2 class="text-2xl font-bold text-gray-900 mb-6">仪表盘</h2>

    <div class="grid grid-cols-1 md:grid-cols-3 gap-4 mb-8">
      <StatsCard
        label="设备总数"
        :value="stats.total_devices"
        :icon="CpuChipIcon"
        color="text-gray-900"
        bg-color="bg-gray-100"
        icon-color="text-gray-600"
      />
      <StatsCard
        label="在线设备"
        :value="stats.online_devices"
        :icon="SignalIcon"
        color="text-green-600"
        bg-color="bg-green-50"
        icon-color="text-green-500"
      />
      <StatsCard
        label="离线设备"
        :value="stats.offline_devices"
        :icon="NoSignalIcon"
        color="text-red-600"
        bg-color="bg-red-50"
        icon-color="text-red-500"
      />
    </div>

    <div class="bg-white rounded-xl shadow-sm border border-gray-200 p-5">
      <h3 class="text-lg font-semibold text-gray-900 mb-4">最近活动</h3>
      <div v-if="stats.recent_logs.length === 0" class="text-gray-400 text-sm">
        暂无活动
      </div>
      <div v-else class="space-y-2">
        <div
          v-for="log in stats.recent_logs"
          :key="log.id"
          class="flex items-center gap-3 text-sm py-1.5 border-b border-gray-100 last:border-0"
        >
          <span
            class="px-2 py-0.5 rounded text-xs font-medium"
            :class="log.direction === 'rx' ? 'bg-blue-50 text-blue-700' : 'bg-orange-50 text-orange-700'"
          >
            {{ log.direction === 'rx' ? '接收' : '发送' }}
          </span>
          <span class="text-gray-500 font-mono text-xs truncate max-w-[200px]">{{ log.topic }}</span>
          <span class="text-gray-700 truncate flex-1">{{ log.payload }}</span>
          <span class="text-gray-400 text-xs whitespace-nowrap">{{ formatTime(log.timestamp) }}</span>
        </div>
      </div>
    </div>
  </div>
</template>

<script setup>
import { ref, onMounted } from 'vue'
import { getDashboardStats } from '../api'
import StatsCard from '../components/StatsCard.vue'
import { CpuChipIcon, WifiIcon as SignalIcon, SignalSlashIcon as NoSignalIcon } from '@heroicons/vue/24/outline'

const stats = ref({
  total_devices: 0,
  online_devices: 0,
  offline_devices: 0,
  recent_logs: [],
})

function formatTime(ts) {
  if (!ts) return ''
  const d = new Date(ts)
  return d.toLocaleTimeString('zh-CN', { hour: '2-digit', minute: '2-digit', second: '2-digit' })
}

onMounted(async () => {
  try {
    stats.value = await getDashboardStats()
  } catch {
    // silently fail
  }
})
</script>
```

- [ ] **Step 3: 验证**

Run: `cd frontend && npm run dev`
Expected: 访问 `/dashboard` 显示三个统计卡片和最近活动列表

- [ ] **Step 4: 提交**

```bash
git add frontend/
git commit -m "feat: dashboard page with stats cards and recent activity timeline"
```

---

### Task 6: 设备列表页面

**Files:**
- Create: `frontend/src/components/DeviceCard.vue`
- Create: `frontend/src/components/AddDeviceModal.vue`
- Modify: `frontend/src/views/DevicesView.vue`

- [ ] **Step 1: 创建 `frontend/src/components/DeviceCard.vue`**

```vue
<template>
  <div
    class="bg-white rounded-xl shadow-sm border border-gray-200 p-4 hover:shadow-md transition-shadow cursor-pointer"
    @click="$router.push(`/devices/${device.id}`)"
  >
    <div class="flex items-start justify-between mb-3">
      <div class="flex items-center gap-2">
        <span
          class="w-2.5 h-2.5 rounded-full"
          :class="device.is_online ? 'bg-green-500' : 'bg-gray-300'"
        ></span>
        <span class="text-sm font-medium text-gray-900 truncate max-w-[160px]">{{ device.name }}</span>
      </div>
      <span class="text-xs px-2 py-0.5 rounded-full bg-gray-100 text-gray-600">{{ device.type }}</span>
    </div>
    <div class="text-xs text-gray-500 space-y-1">
      <div class="flex justify-between">
        <span>状态</span>
        <span class="font-medium" :class="device.state ? 'text-gray-900' : 'text-gray-400'">
          {{ displayState || '未知' }}
        </span>
      </div>
      <div class="flex justify-between">
        <span>协议</span>
        <span>{{ device.protocol === 'ha_discovery' ? 'HA' : '自定义' }}</span>
      </div>
    </div>
    <!-- Quick toggle for switch/light types with command_topic -->
    <button
      v-if="device.command_topic && canToggle"
      class="mt-3 w-full py-1.5 text-sm font-medium rounded-lg transition-colors"
      :class="isOn ? 'bg-primary-600 text-white hover:bg-primary-700' : 'bg-gray-100 text-gray-600 hover:bg-gray-200'"
      @click.stop="toggle"
    >
      {{ isOn ? '关闭' : '开启' }}
    </button>
  </div>
</template>

<script setup>
import { computed } from 'vue'
import { useDeviceStore } from '../stores/devices'

const props = defineProps({
  device: { type: Object, required: true },
})

const store = useDeviceStore()

const canToggle = computed(() => ['switch', 'light'].includes(props.device.type))

const isOn = computed(() => {
  try {
    const s = JSON.parse(props.device.state || '{}')
    return s.state === 'ON' || s.state === 'on' || s.state === 'true'
  } catch {
    return props.device.state === 'ON' || props.device.state === 'on'
  }
})

const displayState = computed(() => {
  if (!props.device.state) return null
  try {
    const s = JSON.parse(props.device.state)
    return s.state || props.device.state
  } catch {
    return props.device.state
  }
})

async function toggle() {
  const newState = isOn.value ? 'off' : 'on'
  try {
    await store.sendCommand(props.device.id, JSON.stringify({ state: newState }))
  } catch {
    // silent fail, WebSocket will update state
  }
}
</script>
```

- [ ] **Step 2: 创建 `frontend/src/components/AddDeviceModal.vue`**

```vue
<template>
  <div v-if="show" class="fixed inset-0 bg-black/40 flex items-center justify-center z-50" @click.self="$emit('close')">
    <div class="bg-white rounded-xl shadow-xl w-full max-w-md mx-4 p-6">
      <h3 class="text-lg font-semibold text-gray-900 mb-4">添加设备</h3>
      <form @submit.prevent="submit" class="space-y-4">
        <div>
          <label class="block text-sm font-medium text-gray-700 mb-1">设备名称</label>
          <input v-model="form.name" type="text" required class="w-full border border-gray-300 rounded-lg px-3 py-2 text-sm focus:ring-2 focus:ring-primary-500 focus:border-primary-500" />
        </div>
        <div>
          <label class="block text-sm font-medium text-gray-700 mb-1">设备类型</label>
          <select v-model="form.type" class="w-full border border-gray-300 rounded-lg px-3 py-2 text-sm focus:ring-2 focus:ring-primary-500 focus:border-primary-500">
            <option value="switch">Switch 开关</option>
            <option value="light">Light 灯光</option>
            <option value="sensor">Sensor 传感器</option>
            <option value="binary_sensor">Binary Sensor</option>
            <option value="climate">Climate 温控</option>
          </select>
        </div>
        <div>
          <label class="block text-sm font-medium text-gray-700 mb-1">状态主题 (State Topic)</label>
          <input v-model="form.mqtt_topic" type="text" required placeholder="home/living/light" class="w-full border border-gray-300 rounded-lg px-3 py-2 text-sm focus:ring-2 focus:ring-primary-500 focus:border-primary-500" />
        </div>
        <div>
          <label class="block text-sm font-medium text-gray-700 mb-1">命令主题 (Command Topic)</label>
          <input v-model="form.command_topic" type="text" placeholder="home/living/light/set" class="w-full border border-gray-300 rounded-lg px-3 py-2 text-sm focus:ring-2 focus:ring-primary-500 focus:border-primary-500" />
        </div>
        <div class="flex justify-end gap-3 pt-2">
          <button type="button" @click="$emit('close')" class="px-4 py-2 text-sm font-medium text-gray-700 bg-gray-100 rounded-lg hover:bg-gray-200">取消</button>
          <button type="submit" :disabled="submitting" class="px-4 py-2 text-sm font-medium text-white bg-primary-600 rounded-lg hover:bg-primary-700 disabled:opacity-50">添加</button>
        </div>
      </form>
    </div>
  </div>
</template>

<script setup>
import { reactive, ref } from 'vue'
import { useDeviceStore } from '../stores/devices'

defineProps({ show: { type: Boolean, default: false } })
defineEmits(['close'])

const store = useDeviceStore()
const submitting = ref(false)

const form = reactive({
  name: '',
  type: 'switch',
  mqtt_topic: '',
  command_topic: '',
})

async function submit() {
  submitting.value = true
  try {
    await store.addDevice(form)
    form.name = ''
    form.mqtt_topic = ''
    form.command_topic = ''
  } finally {
    submitting.value = false
  }
}
</script>
```

- [ ] **Step 3: 替换 `frontend/src/views/DevicesView.vue`**

```vue
<template>
  <div>
    <div class="flex items-center justify-between mb-6">
      <h2 class="text-2xl font-bold text-gray-900">设备管理</h2>
      <button
        @click="showAdd = true"
        class="px-4 py-2 text-sm font-medium text-white bg-primary-600 rounded-lg hover:bg-primary-700"
      >
        + 添加设备
      </button>
    </div>

    <div v-if="store.loading" class="text-gray-400">加载中...</div>

    <div v-else-if="store.devices.length === 0" class="text-center py-16 text-gray-400">
      <p>暂无设备</p>
      <p class="text-sm mt-1">点击"添加设备"手动注册，或通过 HA Discovery 自动发现</p>
    </div>

    <div v-else class="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 xl:grid-cols-4 gap-4">
      <DeviceCard v-for="device in store.devices" :key="device.id" :device="device" />
    </div>

    <AddDeviceModal :show="showAdd" @close="showAdd = false" />
  </div>
</template>

<script setup>
import { ref, onMounted } from 'vue'
import { useDeviceStore } from '../stores/devices'
import DeviceCard from '../components/DeviceCard.vue'
import AddDeviceModal from '../components/AddDeviceModal.vue'

const store = useDeviceStore()
const showAdd = ref(false)

onMounted(() => store.fetchDevices())
</script>
```

- [ ] **Step 4: 提交**

```bash
git add frontend/
git commit -m "feat: devices list page with cards, quick toggle, and add device modal"
```

---

### Task 7: 设备详情页面

**Files:**
- Create: `frontend/src/components/DeviceControl.vue`
- Create: `frontend/src/components/DeviceLogList.vue`
- Modify: `frontend/src/views/DeviceDetailView.vue`

- [ ] **Step 1: 创建 `frontend/src/components/DeviceControl.vue`**

```vue
<template>
  <div class="bg-white rounded-xl shadow-sm border border-gray-200 p-5">
    <h3 class="text-lg font-semibold text-gray-900 mb-4">控制</h3>

    <!-- Switch / Light: toggle button -->
    <div v-if="canToggle" class="mb-4">
      <button
        @click="toggle"
        :disabled="!device.command_topic"
        class="px-6 py-2.5 text-sm font-medium rounded-lg transition-colors"
        :class="isOn ? 'bg-primary-600 text-white hover:bg-primary-700' : 'bg-gray-100 text-gray-600 hover:bg-gray-200'"
      >
        {{ isOn ? '关闭' : '开启' }}
      </button>
    </div>

    <!-- Custom JSON command input -->
    <div>
      <label class="block text-sm font-medium text-gray-700 mb-1">发送命令</label>
      <div class="flex gap-2">
        <input
          v-model="commandPayload"
          type="text"
          placeholder='{"state":"on"}'
          :disabled="!device.command_topic"
          class="flex-1 border border-gray-300 rounded-lg px-3 py-2 text-sm font-mono focus:ring-2 focus:ring-primary-500 focus:border-primary-500 disabled:bg-gray-50 disabled:text-gray-400"
        />
        <button
          @click="sendCustom"
          :disabled="!device.command_topic || sending"
          class="px-4 py-2 text-sm font-medium text-white bg-primary-600 rounded-lg hover:bg-primary-700 disabled:opacity-50"
        >
          发送
        </button>
      </div>
      <p v-if="!device.command_topic" class="text-xs text-gray-400 mt-1">此设备未配置命令主题</p>
    </div>
  </div>
</template>

<script setup>
import { computed, ref } from 'vue'
import { useDeviceStore } from '../stores/devices'

const props = defineProps({
  device: { type: Object, required: true },
})

const store = useDeviceStore()
const sending = ref(false)
const commandPayload = ref('')

const canToggle = computed(() => ['switch', 'light'].includes(props.device.type))

const isOn = computed(() => {
  try {
    const s = JSON.parse(props.device.state || '{}')
    return s.state === 'ON' || s.state === 'on' || s.state === 'true'
  } catch {
    return props.device.state === 'ON' || props.device.state === 'on'
  }
})

async function toggle() {
  const newState = isOn.value ? 'off' : 'on'
  sending.value = true
  try {
    await store.sendCommand(props.device.id, JSON.stringify({ state: newState }))
  } finally {
    sending.value = false
  }
}

async function sendCustom() {
  if (!commandPayload.value.trim()) return
  sending.value = true
  try {
    await store.sendCommand(props.device.id, commandPayload.value)
    commandPayload.value = ''
  } finally {
    sending.value = false
  }
}
</script>
```

- [ ] **Step 2: 创建 `frontend/src/components/DeviceLogList.vue`**

```vue
<template>
  <div class="bg-white rounded-xl shadow-sm border border-gray-200 p-5">
    <h3 class="text-lg font-semibold text-gray-900 mb-4">消息日志</h3>
    <div v-if="logs.length === 0" class="text-gray-400 text-sm">暂无日志</div>
    <div v-else class="space-y-1.5 max-h-[300px] overflow-y-auto">
      <div
        v-for="log in logs"
        :key="log.id"
        class="flex items-center gap-3 text-sm py-1.5 border-b border-gray-50 last:border-0"
      >
        <span
          class="px-2 py-0.5 rounded text-xs font-medium shrink-0"
          :class="log.direction === 'rx' ? 'bg-blue-50 text-blue-700' : 'bg-orange-50 text-orange-700'"
        >
          {{ log.direction === 'rx' ? 'RX' : 'TX' }}
        </span>
        <span class="text-gray-700 font-mono text-xs truncate flex-1">{{ log.payload }}</span>
        <span class="text-gray-400 text-xs whitespace-nowrap">{{ formatTime(log.timestamp) }}</span>
      </div>
    </div>
  </div>
</template>

<script setup>
import { ref, onMounted } from 'vue'
import { getDeviceLogs } from '../api'

const props = defineProps({
  deviceId: { type: String, required: true },
})

const logs = ref([])

function formatTime(ts) {
  if (!ts) return ''
  return new Date(ts).toLocaleTimeString('zh-CN', { hour: '2-digit', minute: '2-digit', second: '2-digit' })
}

onMounted(async () => {
  try {
    logs.value = await getDeviceLogs(props.deviceId)
  } catch {
    // silent
  }
})
</script>
```

- [ ] **Step 3: 替换 `frontend/src/views/DeviceDetailView.vue`**

```vue
<template>
  <div>
    <div v-if="!device" class="text-gray-400">加载中...</div>

    <template v-else>
      <div class="flex items-center gap-2 mb-6">
        <router-link to="/devices" class="text-primary-600 hover:text-primary-700 text-sm">&larr; 返回设备列表</router-link>
      </div>

      <!-- Device info header -->
      <div class="bg-white rounded-xl shadow-sm border border-gray-200 p-5 mb-4">
        <div class="flex items-start justify-between">
          <div>
            <div class="flex items-center gap-2 mb-1">
              <h2 class="text-xl font-bold text-gray-900">{{ device.name }}</h2>
              <span
                class="w-2.5 h-2.5 rounded-full"
                :class="device.is_online ? 'bg-green-500' : 'bg-gray-300'"
              ></span>
            </div>
            <div class="text-sm text-gray-500 space-x-3">
              <span>{{ device.type }}</span>
              <span>{{ device.protocol === 'ha_discovery' ? 'HA Discovery' : '自定义' }}</span>
              <span>ID: {{ device.id.slice(0, 8) }}</span>
            </div>
          </div>
          <button
            @click="handleDelete"
            class="px-3 py-1.5 text-sm font-medium text-red-600 bg-red-50 rounded-lg hover:bg-red-100"
          >
            删除设备
          </button>
        </div>

        <div class="mt-4 grid grid-cols-2 gap-x-8 gap-y-2 text-sm">
          <div><span class="text-gray-500">状态主题：</span><span class="font-mono text-gray-700">{{ device.mqtt_topic }}</span></div>
          <div><span class="text-gray-500">命令主题：</span><span class="font-mono text-gray-700">{{ device.command_topic || '无' }}</span></div>
          <div><span class="text-gray-500">当前状态：</span><span class="font-mono text-gray-700">{{ device.state || '无' }}</span></div>
          <div><span class="text-gray-500">最后活跃：</span><span class="text-gray-700">{{ device.last_seen || '从未' }}</span></div>
        </div>
      </div>

      <div class="grid grid-cols-1 lg:grid-cols-2 gap-4">
        <DeviceControl :device="device" />
        <DeviceLogList :device-id="device.id" />
      </div>
    </template>
  </div>
</template>

<script setup>
import { ref, onMounted, computed } from 'vue'
import { useRoute, useRouter } from 'vue-router'
import { useDeviceStore } from '../stores/devices'
import DeviceControl from '../components/DeviceControl.vue'
import DeviceLogList from '../components/DeviceLogList.vue'

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

const device = computed(() => store.devices.find((d) => d.id === route.params.id))

onMounted(() => {
  if (!device.value) store.fetchDevices()
})

async function handleDelete() {
  if (!confirm('确定要删除此设备吗？')) return
  await store.removeDevice(route.params.id)
  router.push('/devices')
}
</script>
```

- [ ] **Step 4: 提交**

```bash
git add frontend/
git commit -m "feat: device detail page with control panel, custom commands, and message log"
```

---

### Task 8: Broker 管理页面

**Files:**
- Modify: `frontend/src/views/BrokerView.vue`

- [ ] **Step 1: 替换 `frontend/src/views/BrokerView.vue`**

```vue
<template>
  <div>
    <h2 class="text-2xl font-bold text-gray-900 mb-6">Broker 管理</h2>

    <!-- Status -->
    <div class="bg-white rounded-xl shadow-sm border border-gray-200 p-5 mb-4">
      <h3 class="text-lg font-semibold text-gray-900 mb-3">状态</h3>
      <div class="grid grid-cols-2 md:grid-cols-4 gap-4 text-sm">
        <div>
          <span class="text-gray-500">状态</span>
          <p class="font-medium text-green-600">运行中</p>
        </div>
        <div>
          <span class="text-gray-500">连接数</span>
          <p class="font-medium">{{ metrics['client.connected'] || 0 }}</p>
        </div>
        <div>
          <span class="text-gray-500">订阅数</span>
          <p class="font-medium">{{ metrics['client.subscribe'] || 0 }}</p>
        </div>
        <div>
          <span class="text-gray-500">消息发布</span>
          <p class="font-medium">{{ metrics['messages.publish'] || 0 }}</p>
        </div>
      </div>
      <div v-if="statusRaw" class="mt-3 text-xs text-gray-400">{{ statusRaw }}</div>
    </div>

    <div class="grid grid-cols-1 lg:grid-cols-2 gap-4">
      <!-- Clients -->
      <div class="bg-white rounded-xl shadow-sm border border-gray-200 p-5">
        <h3 class="text-lg font-semibold text-gray-900 mb-3">
          已连接客户端 ({{ clients.length }})
        </h3>
        <div v-if="clients.length === 0" class="text-gray-400 text-sm">暂无客户端</div>
        <div v-else class="space-y-2">
          <div
            v-for="client in clients"
            :key="client.clientid"
            class="flex items-center justify-between py-1.5 border-b border-gray-50 last:border-0 text-sm"
          >
            <div class="flex items-center gap-2">
              <span
                class="w-2 h-2 rounded-full"
                :class="client.connected ? 'bg-green-500' : 'bg-gray-300'"
              ></span>
              <span class="font-medium text-gray-900">{{ client.clientid }}</span>
            </div>
            <span class="text-gray-500 text-xs">{{ client.ip_address }}</span>
          </div>
        </div>
      </div>

      <!-- Topics -->
      <div class="bg-white rounded-xl shadow-sm border border-gray-200 p-5">
        <h3 class="text-lg font-semibold text-gray-900 mb-3">
          活跃主题 ({{ topics.length }})
        </h3>
        <div v-if="topics.length === 0" class="text-gray-400 text-sm">暂无活跃主题</div>
        <div v-else class="space-y-1">
          <div
            v-for="topic in topics"
            :key="topic.topic"
            class="py-1 border-b border-gray-50 last:border-0 font-mono text-sm text-gray-700"
          >
            {{ topic.topic }}
          </div>
        </div>
      </div>
    </div>
  </div>
</template>

<script setup>
import { ref, onMounted } from 'vue'
import { getBrokerStatus, getBrokerClients, getBrokerTopics } from '../api'

const metrics = ref({})
const statusRaw = ref('')
const clients = ref([])
const topics = ref([])

onMounted(async () => {
  try {
    const status = await getBrokerStatus()
    metrics.value = status.metrics || {}
    statusRaw.value = status.status?.raw || ''
  } catch {
    // silent
  }
  try {
    clients.value = await getBrokerClients()
  } catch {
    // silent
  }
  try {
    topics.value = await getBrokerTopics()
  } catch {
    // silent
  }
})
</script>
```

- [ ] **Step 2: 提交**

```bash
git add frontend/
git commit -m "feat: broker management page with status, clients, and topics"
```

---

### Task 9: 生产构建与后端静态文件服务

**Files:**
- Modify: `src/mqtt_home/main.py`

- [ ] **Step 1: 构建前端**

Run: `cd frontend && npm run build`
Expected: `frontend/dist/` 目录生成，包含 index.html 和 JS/CSS 资源

- [ ] **Step 2: 修改 `src/mqtt_home/main.py`，添加静态文件服务**

在文件顶部 import 区域添加：
```python
from fastapi.staticfiles import StaticFiles
from fastapi.responses import FileResponse
import pathlib
```

在 `app.include_router(api_router)` 之前添加：
```python
# Serve frontend static files in production
frontend_dist = pathlib.Path(__file__).parent.parent.parent / "frontend" / "dist"
if frontend_dist.exists():
    app.mount("/assets", StaticFiles(directory=str(frontend_dist / "assets")), name="assets")

    @app.get("/{full_path:path}")
    async def serve_spa(full_path: str):
        file = frontend_dist / full_path
        if file.exists() and file.is_file():
            return FileResponse(str(file))
        return FileResponse(str(frontend_dist / "index.html"))
```

- [ ] **Step 3: 验证生产模式**

Run: `cd D:\home\mqtt && python -m mqtt_home serve`
Expected: 访问 `http://localhost:8000/` 显示前端页面，API 正常工作

- [ ] **Step 4: 提交**

```bash
git add frontend/ src/
git commit -m "feat: production build with FastAPI static file serving for SPA"
```

---

### Task 10: 端到端验证与最终提交

- [ ] **Step 1: 启动服务**

Run: `cd D:\home\mqtt && python -m mqtt_home serve`

- [ ] **Step 2: 浏览器验证以下功能**

1. `http://localhost:8000/` — 仪表盘显示设备统计
2. `http://localhost:8000/devices` — 设备列表（网格布局）
3. 点击"添加设备"弹窗 — 填写表单创建设备
4. 点击设备卡片 — 进入详情页，显示控制面板和日志
5. `http://localhost:8000/broker` — Broker 状态、客户端、主题
6. 侧边栏导航切换正常
7. MQTT 连接状态指示灯正确

- [ ] **Step 3: 提交**

```bash
git add -A
git commit -m "feat: frontend complete - dashboard, devices, device detail, broker pages"
```

---

## 自检结果

| 设计文档章节 | 对应 Task |
|---|---|
| 仪表盘 — 设备数量、在线/离线、最近活动 | Task 5 |
| 设备列表 — 网格视图、类型图标、状态指示、快捷切换 | Task 6 |
| 设备详情 — 状态展示、控制面板、消息日志 | Task 7 |
| Broker 管理 — 客户端列表、活跃主题、健康状态 | Task 8 |
| WebSocket 实时推送 | Task 3 + Task 4 |
| 响应式布局 | Task 1 (Tailwind responsive classes) |
| 控制面板按类型自适应 | Task 7 (DeviceControl.vue) |
| 添加设备弹窗 | Task 6 (AddDeviceModal.vue) |