17792275749andClaude Sonnet 4.6
6fe36f59fe
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
346 lines
11 KiB
TypeScript
346 lines
11 KiB
TypeScript
import { leFuService } from '../../lefu/index'
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import type { ScannedDevice } from '../../lefu/index'
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import type { RawDevice } from '../../lefu/types'
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/** 渲染用的设备项（RawDevice 含复杂对象，不进 setData） */
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interface DeviceItem {
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deviceId: string
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name: string
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connected: boolean
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}
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type DeviceStatus = 'idle' | 'searching' | 'found' | 'empty'
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/** 扫描到的原始设备缓存 */
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let scannedDevices: ScannedDevice[] = []
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/** 扫描 / 断开回调的取消订阅句柄 */
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let unsubDevicesList: (() => void) | null = null
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let unsubDisconnected: (() => void) | null = null
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let unsubDeviceConnect: (() => void) | null = null
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/** 连接流程的清理句柄 */
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let connectCleanup: {
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timer: number | null
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unsubState: (() => void) | null
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unsubConnect: (() => void) | null
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} | null = null
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/** 一次性防重入标记 */
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let modalLocked = false
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let autoConnectTried = false
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Page({
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data: {
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status: 'idle' as DeviceStatus,
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deviceList: [] as DeviceItem[],
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},
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onShow() {
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// 从其他页面返回时同步连接状态
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if (leFuService.isConnected) {
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this._markConnected()
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} else {
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this._markAllDisconnected()
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}
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},
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onHide() {
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leFuService.stopScan()
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// 搜索中切后台：停止扫描后重置状态，避免回来显示「搜索中」假状态
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if (this.data.status === 'searching') {
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this.setData({ status: 'idle' })
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}
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},
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onUnload() {
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leFuService.stopScan()
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this._clearSubscriptions()
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this._clearConnectCleanup()
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},
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/** 点击「开始 / 重新搜索」 */
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async onStartSearch() {
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if (modalLocked) return
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scannedDevices = []
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autoConnectTried = false
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this.setData({ status: 'searching', deviceList: [] })
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await this._requestPermissionAndScan()
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},
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/** 点击设备卡片：已连接跳配网，未连接走连接流程 */
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onTapCard(e: WechatMiniprogram.TouchEvent) {
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const connected = e.currentTarget.dataset.connected as boolean
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if (connected) {
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wx.navigateTo({ url: '/pages/connectedWifi/connectedWifi' })
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return
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}
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this.onConnect(e)
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},
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/** 手动连接指定设备 */
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onConnect(e: WechatMiniprogram.TouchEvent) {
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const index = e.currentTarget.dataset.index as number
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this._connectByIndex(index, false)
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},
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/** 断开当前连接 */
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onDisconnect() {
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this._markAllDisconnected()
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leFuService.disconnect()
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},
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onOpenHelp() {
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wx.showToast({ title: '请确保设备已开机且在附近', icon: 'none' })
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},
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/** 将所有卡片置为未连接 */
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_markAllDisconnected() {
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this.setData({
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deviceList: this.data.deviceList.map(item => ({ ...item, connected: false })),
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})
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},
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/** 获取当前已连接设备的 deviceId（未连接返回空字符串） */
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_getConnectedId(): string {
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if (!leFuService.isConnected) return ''
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const cached = wx.getStorageSync('connectDeviceInfo') as Record<string, any> | null
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return cached?.deviceId || ''
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},
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/** 连接成功后把对应设备卡片标记为已连接（覆盖手动连接与自动重连） */
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_markConnected() {
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const id = this._getConnectedId()
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if (!id) return
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this.setData({
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deviceList: this.data.deviceList.map(item => ({ ...item, connected: item.deviceId === id })),
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})
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},
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_clearSubscriptions() {
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unsubDevicesList?.()
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unsubDisconnected?.()
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unsubDeviceConnect?.()
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unsubDevicesList = null
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unsubDisconnected = null
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unsubDeviceConnect = null
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},
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_clearConnectCleanup() {
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if (!connectCleanup) return
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if (connectCleanup.timer !== null) clearTimeout(connectCleanup.timer)
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connectCleanup.unsubState?.()
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connectCleanup.unsubConnect?.()
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connectCleanup = null
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},
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/** 检查系统蓝牙开关 */
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_checkBluetoothEnabled(): boolean {
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try {
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if (wx.getSystemSetting().bluetoothEnabled === false) {
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this._showBluetoothOff()
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return false
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}
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return true
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} catch {
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// 基础库不支持 wx.getSystemSetting 时跳过，交由 openBluetoothAdapter 报错兜底
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return true
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}
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},
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/** 检查系统定位开关 */
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_checkLocationService(): boolean {
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try {
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if (wx.getSystemSetting().locationEnabled === false) {
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this._showLocationOff()
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return false
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}
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return true
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} catch {
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return true
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}
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},
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/** 申请微信“附近设备/位置”授权 */
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async _ensureLocationAuth(): Promise<boolean> {
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try {
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const { authSetting } = await wx.getSetting()
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const setting = authSetting as Record<string, boolean | undefined>
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if (!setting['scope.userLocation']) {
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await wx.authorize({ scope: 'scope.userLocation' })
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}
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return true
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} catch {
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this._showLocationGuide()
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return false
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}
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},
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/** 编排：蓝牙开关 → 定位开关 → 微信授权 → 打开蓝牙并扫描 */
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async _requestPermissionAndScan() {
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if (!this._checkBluetoothEnabled()) return
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if (!this._checkLocationService()) return
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if (!(await this._ensureLocationAuth())) return
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await this._openAdapterAndScan()
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},
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async _openAdapterAndScan() {
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try {
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await wx.openBluetoothAdapter()
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} catch (err: any) {
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console.error('[connectedDevice] openBluetoothAdapter 失败:', err)
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this.setData({ status: 'idle' })
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this._handleAdapterError()
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return
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}
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this._startScan()
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},
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/** 区分蓝牙/定位服务开关，给出准确提示 */
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_handleAdapterError() {
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try {
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const setting = wx.getSystemSetting()
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if (!setting.bluetoothEnabled) {
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this._showBluetoothOff()
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return
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}
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if (!setting.locationEnabled) {
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this._showLocationOff()
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return
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}
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} catch {
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// 基础库不支持 wx.getSystemSetting 时，退化为通用提示
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}
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wx.showToast({ title: '蓝牙初始化失败，请重试', icon: 'none' })
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},
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_startScan() {
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this._clearSubscriptions()
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unsubDevicesList = leFuService.onDevicesList((devices) => {
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scannedDevices = devices
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if (!devices.length) {
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this.setData({ status: 'empty', deviceList: [] })
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return
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}
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const connectedId = this._getConnectedId()
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this.setData({
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status: 'found',
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deviceList: devices.map(d => ({
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deviceId: d.raw.deviceId || '',
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name: d.name,
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connected: !!connectedId && d.raw.deviceId === connectedId,
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})),
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})
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this._tryAutoConnect()
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})
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unsubDisconnected = leFuService.onDisconnected(() => {
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this._markAllDisconnected()
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})
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unsubDeviceConnect = leFuService.onDeviceConnect(() => {
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this._markConnected()
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})
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leFuService.startScan()
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},
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/** 命中缓存设备时自动连接一次 */
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_tryAutoConnect() {
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if (autoConnectTried) return
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// 已连接时不自动重连，避免触发断开重连
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if (leFuService.isConnected) return
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const cached = wx.getStorageSync('connectDeviceInfo') as RawDevice | null
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if (!cached?.deviceId) return
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const index = scannedDevices.findIndex(d => d.raw.deviceId === cached.deviceId)
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if (index < 0) return
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autoConnectTried = true
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this._connectByIndex(index, true)
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},
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/** 统一连接流程（手动 / 自动共用），手动连接成功后跳配网 */
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_connectByIndex(index: number, isAuto: boolean) {
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const scanned = scannedDevices[index]
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if (!scanned) return
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// 连接中：防止重复点击导致连接流程被重复触发
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if (connectCleanup) return
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wx.showLoading({ title: '连接中...', mask: true })
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leFuService.stopScan()
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leFuService.connect(scanned.raw)
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this._clearConnectCleanup()
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connectCleanup = { timer: null, unsubState: null, unsubConnect: null }
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const finish = () => {
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if (connectCleanup?.timer !== null) clearTimeout(connectCleanup.timer)
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connectCleanup?.unsubState?.()
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connectCleanup?.unsubConnect?.()
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connectCleanup = null
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wx.hideLoading()
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}
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connectCleanup.timer = setTimeout(() => {
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finish()
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wx.showToast({ title: '连接超时', icon: 'none' })
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}, 15000)
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connectCleanup.unsubState = leFuService.onConnectState((state) => {
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if (state === leFuService.BLUE_STATE.CONNECTFAILED) {
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finish()
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wx.showToast({ title: '连接失败，请重试', icon: 'none' })
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} else if (state === leFuService.BLUE_STATE.UNAVAILABLE) {
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// 连接过程中蓝牙被关闭：立即结束 loading，避免卡到超时
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finish()
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wx.showToast({ title: '蓝牙已断开，请重新开启', icon: 'none' })
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}
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})
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connectCleanup.unsubConnect = leFuService.onDeviceConnect(() => {
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finish()
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wx.setStorageSync('connectDeviceInfo', { ...scanned.raw, scaleDeviceName: scanned.raw.name })
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if (!isAuto) {
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wx.navigateTo({ url: '/pages/connectedWifi/connectedWifi' })
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}
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})
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},
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_showBluetoothOff() {
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wx.showModal({
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title: '蓝牙未开启',
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content: '请先开启手机蓝牙后重试',
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showCancel: false,
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confirmText: '知道了',
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success: () => this.setData({ status: 'idle' }),
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})
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},
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_showLocationOff() {
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wx.showModal({
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title: '定位服务未开启',
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content: '安卓手机搜索蓝牙设备需开启定位服务，请前往系统设置开启后重试。',
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showCancel: false,
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confirmText: '知道了',
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success: () => this.setData({ status: 'idle' }),
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})
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},
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_showLocationGuide() {
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modalLocked = true
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wx.showModal({
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title: '需要授权',
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content: '小程序需要位置权限才能搜索蓝牙设备，请前往设置开启。',
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confirmText: '去开启',
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cancelText: '取消',
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success: (res) => {
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modalLocked = false
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this.setData({ status: 'idle' })
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if (res.confirm) {
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wx.openSetting({
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success: () => this.onStartSearch(),
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fail: () => this.setData({ status: 'idle' }),
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})
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}
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},
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fail: () => {
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modalLocked = false
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this.setData({ status: 'idle' })
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},
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})
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},
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})
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