825 lines
20 KiB
JavaScript
825 lines
20 KiB
JavaScript
import {
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BLUETOOTH_ERROR_MESSAGES,
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DEFAULT_BLUETOOTH_ERROR_MESSAGE,
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DISCOVERY_FILTER_SERVICE_UUIDS,
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TARGET_SERVICE_UUID_FULL,
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TARGET_SERVICE_UUID_ALT_FULL,
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TARGET_SHORT_UUID
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} from '@/constants/bluetooth'
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import { DEVICE_PROFILE, createUnifiedBleController, shortUuid, uuidInList } from '@/utils/ble'
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import { showToast } from '@/utils/toast'
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const FILTER_SCAN_TIMEOUT_MS = 4000
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const RESTART_SCAN_DELAY_MS = 120
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const DISCOVERY_POLL_INTERVAL_MS = 1200
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const TARGET_NAME_KEYWORDS = Object.freeze(['ED713', '713WQ', 'ED719'])
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function promisifyUniApi(apiName, params = {}) {
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return new Promise((resolve, reject) => {
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uni[apiName]({
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...params,
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success: (res) => resolve(res),
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fail: (err) => reject(err)
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})
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})
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}
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/**
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* 统一蓝牙接入层（ED713/ED719）：
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* 1) 搜索（过滤、去重、可停止）
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* 2) 连接 + 服务/特征发现 + 订阅
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* 3) 鉴权、读取设备信息、WiFi 配置、雷达控制
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*/
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export function createBluetoothDiscovery(options = {}) {
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const {
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onSearchingChange = () => {},
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onDeviceMapChange = () => {},
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onDeviceListChange = () => {},
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onConnectedChange = () => {},
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onProfileChange = () => {},
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onStageChange = () => {},
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onProtocolState = () => {},
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onProtocolMsg = () => {},
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onRadarData = () => {},
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onDeviceInfoChange = () => {},
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onAuthChange = () => {},
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onError = () => {}
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} = options
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const controller = createUnifiedBleController({
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profileId: DEVICE_PROFILE.UNKNOWN
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})
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let initialized = false
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let isSearching = false
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let isConnected = false
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let deviceMap = {}
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let currentDeviceId = ''
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let currentProfileId = DEVICE_PROFILE.UNKNOWN
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let lastDeviceInfo = null
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let lastAuthResult = null
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let searchSessionId = 0
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let acceptingDeviceEvents = false
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let filterFallbackTimer = null
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let discoveryPollTimer = null
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let offDeviceFound = null
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let offAdapterState = null
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let offConnectionChange = null
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let offStateChange = null
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let offProtocolState = null
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let offProtocolMsg = null
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let offProtocolRadar = null
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let offError = null
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function setSearching(value) {
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isSearching = Boolean(value)
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onSearchingChange(isSearching)
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}
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function setConnected(value) {
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isConnected = Boolean(value)
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onConnectedChange(isConnected)
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}
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function getSortedDeviceList(mapValue = deviceMap) {
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return Object.values(mapValue).sort((left, right) => {
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if (left.hasTargetService !== right.hasTargetService) {
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return left.hasTargetService ? -1 : 1
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}
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const leftSignal = typeof left.RSSI === 'number' ? left.RSSI : -999
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const rightSignal = typeof right.RSSI === 'number' ? right.RSSI : -999
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return rightSignal - leftSignal
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})
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}
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function emitDeviceList() {
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onDeviceListChange(getSortedDeviceList())
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}
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function setDeviceMap(nextMap) {
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deviceMap = nextMap
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onDeviceMapChange({ ...deviceMap })
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emitDeviceList()
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}
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function resetDeviceMap() {
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setDeviceMap({})
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}
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function normalizeUuid(uuid) {
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return String(uuid || '').replace(/[^0-9a-fA-F]/g, '').toUpperCase()
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}
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function inferProfileByName(device) {
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const text = `${device?.name || ''} ${device?.localName || ''}`.toUpperCase()
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if (text.includes('ED719')) {
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return DEVICE_PROFILE.ED719
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}
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if (text.includes('ED713')) {
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return DEVICE_PROFILE.ED713
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}
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return DEVICE_PROFILE.UNKNOWN
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}
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/**
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* 从广播包中解析 16-bit service UUID（AD Type 0x02/0x03）。
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*/
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function extractShortUuidsFromAdvertisData(advertisData) {
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if (!advertisData) {
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return []
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}
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const bytes = advertisData instanceof Uint8Array ? advertisData : new Uint8Array(advertisData)
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const shortUuids = []
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let offset = 0
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while (offset < bytes.length) {
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const len = bytes[offset]
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if (!len) {
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break
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}
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const typeIndex = offset + 1
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const dataStart = offset + 2
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const dataEnd = offset + 1 + len
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if (dataEnd > bytes.length) {
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break
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}
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const type = bytes[typeIndex]
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if (type === 0x02 || type === 0x03) {
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for (let index = dataStart; index + 1 < dataEnd; index += 2) {
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const value = ((bytes[index + 1] << 8) | bytes[index]).toString(16).toUpperCase().padStart(4, '0')
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shortUuids.push(value)
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}
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}
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offset += len + 1
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}
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return shortUuids
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}
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function hasTargetService(device) {
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const serviceList = Array.isArray(device?.advertisServiceUUIDs) ? device.advertisServiceUUIDs : []
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const adShortUuids = extractShortUuidsFromAdvertisData(device?.advertisData)
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if (!serviceList.length && !adShortUuids.length) {
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return false
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}
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return uuidInList(TARGET_SERVICE_UUID_FULL, serviceList)
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|| uuidInList(TARGET_SERVICE_UUID_ALT_FULL, serviceList)
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|| serviceList.some((item) => shortUuid(item) === TARGET_SHORT_UUID)
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|| adShortUuids.includes(TARGET_SHORT_UUID)
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|| adShortUuids.includes('F400')
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}
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function bufferToPrintableText(buffer) {
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if (!buffer) {
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return ''
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}
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const bytes = buffer instanceof Uint8Array ? buffer : new Uint8Array(buffer)
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return Array.from(bytes)
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.map((value) => (value >= 32 && value <= 126 ? String.fromCharCode(value) : ' '))
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.join(' ')
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.toUpperCase()
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}
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function hasTargetKeywordText(text) {
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return TARGET_NAME_KEYWORDS.some((keyword) => text.includes(keyword))
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}
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function hasTargetName(device) {
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const text = `${String(device?.name || '')} ${String(device?.localName || '')}`.toUpperCase()
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return hasTargetKeywordText(text)
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}
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function hasTargetKeywordInPayload(device) {
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const adText = bufferToPrintableText(device?.advertisData)
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const manufacturerText = bufferToPrintableText(device?.manufacturerData)
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return hasTargetKeywordText(`${adText} ${manufacturerText}`)
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}
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function matchTargetDevice(device) {
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const byService = hasTargetService(device)
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const byName = hasTargetName(device)
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const byPayload = hasTargetKeywordInPayload(device)
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return {
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isTarget: byService || byName || byPayload,
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byService,
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byName,
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byPayload
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}
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}
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function hasTargetDeviceInMap() {
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return Object.values(deviceMap).some((item) => item.isTargetDevice)
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}
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function getDeviceStableSignature(device = {}) {
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return [
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device.deviceId || '',
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device.RSSI ?? '',
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device.name || '',
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device.localName || '',
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Array.isArray(device.advertisServiceUUIDs)
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? device.advertisServiceUUIDs.map((item) => normalizeUuid(item)).sort().join('|')
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: '',
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device.advertisData ? JSON.stringify(Array.from(new Uint8Array(device.advertisData))) : ''
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].join('#')
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}
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function clearFallbackTimer() {
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if (!filterFallbackTimer) {
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return
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}
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clearTimeout(filterFallbackTimer)
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filterFallbackTimer = null
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}
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function clearDiscoveryPollTimer() {
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if (!discoveryPollTimer) {
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return
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}
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clearTimeout(discoveryPollTimer)
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discoveryPollTimer = null
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}
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function delay(ms) {
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return new Promise((resolve) => {
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setTimeout(resolve, ms)
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})
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}
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async function ensureAndroidLocationPermission() {
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let systemInfo = {}
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try {
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systemInfo = uni.getSystemInfoSync() || {}
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} catch (error) {
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return true
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}
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const platform = String(systemInfo.platform || '').toLowerCase()
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if (platform !== 'android') {
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return true
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}
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try {
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const settings = await new Promise((resolve, reject) => {
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uni.getSetting({
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success: resolve,
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fail: reject
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})
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})
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const locationSetting = settings?.authSetting?.['scope.userLocation']
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if (locationSetting === true) {
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return true
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}
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await new Promise((resolve, reject) => {
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uni.authorize({
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scope: 'scope.userLocation',
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success: resolve,
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fail: reject
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})
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})
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return true
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} catch (error) {
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showToast('Android建议开启定位权限/定位开关（已继续尝试搜索）')
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return false
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}
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}
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function upsertDevice(rawDevice) {
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if (!rawDevice || !rawDevice.deviceId) {
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return
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}
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const matched = matchTargetDevice(rawDevice)
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if (!matched.isTarget) {
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return
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}
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const existing = deviceMap[rawDevice.deviceId] || {}
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const merged = {
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...existing,
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...rawDevice,
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showName: rawDevice.name || rawDevice.localName || existing.showName || '未命名设备',
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isTargetDevice: true,
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hasTargetService: matched.byService,
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matchedByName: matched.byName,
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matchedByPayload: matched.byPayload,
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profileHint: inferProfileByName(rawDevice)
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}
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const prevSignature = getDeviceStableSignature(existing)
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const nextSignature = getDeviceStableSignature(merged)
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if (prevSignature === nextSignature) {
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return
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}
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setDeviceMap({
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...deviceMap,
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[rawDevice.deviceId]: merged
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})
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}
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function getBluetoothErrorText(error) {
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const errCode = error?.errCode ?? error?.code
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const text = BLUETOOTH_ERROR_MESSAGES[errCode] || DEFAULT_BLUETOOTH_ERROR_MESSAGE
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if (errCode === undefined || errCode === null) {
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return text
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}
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return `${text}(${errCode})`
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}
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function bindControllerEvents() {
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if (offStateChange) {
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return
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}
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offStateChange = controller.ble.on('state:change', (state) => {
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onStageChange(state.stage)
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if (state.profileId && state.profileId !== currentProfileId) {
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currentProfileId = state.profileId
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onProfileChange(currentProfileId)
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}
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})
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offDeviceFound = controller.ble.on('device:found', (devices) => {
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if (!acceptingDeviceEvents) {
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return
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}
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const currentSession = searchSessionId
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devices.forEach((device) => {
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if (!acceptingDeviceEvents || currentSession !== searchSessionId) {
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return
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}
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upsertDevice(device)
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})
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})
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offAdapterState = controller.ble.on('adapter:state', (state) => {
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if (state?.available !== false) {
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return
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}
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acceptingDeviceEvents = false
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setSearching(false)
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setConnected(false)
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showToast('蓝牙已关闭，请先开启手机蓝牙')
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})
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offConnectionChange = controller.ble.on('connection:change', (payload) => {
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setConnected(Boolean(payload?.connected))
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if (!payload?.connected) {
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currentDeviceId = ''
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}
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})
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offProtocolState = controller.ble.on('protocol:state', (payload) => {
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onProtocolState(payload)
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})
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offProtocolMsg = controller.ble.on('protocol:msg', (payload) => {
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onProtocolMsg(payload)
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if (payload?.deviceInfo) {
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lastDeviceInfo = payload.deviceInfo
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onDeviceInfoChange(lastDeviceInfo)
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}
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})
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offProtocolRadar = controller.ble.on('protocol:radar', (payload) => {
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const parsed = controller.radar.parseNotifyPayload(payload.value)
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onRadarData({
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...payload,
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parsed
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})
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})
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offError = controller.ble.on('error', (error) => {
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onError(error)
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})
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}
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function unbindControllerEvents() {
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if (offDeviceFound) {
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offDeviceFound()
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offDeviceFound = null
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}
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if (offAdapterState) {
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offAdapterState()
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offAdapterState = null
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}
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if (offConnectionChange) {
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offConnectionChange()
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offConnectionChange = null
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}
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if (offStateChange) {
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offStateChange()
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offStateChange = null
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}
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if (offProtocolState) {
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offProtocolState()
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offProtocolState = null
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}
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if (offProtocolMsg) {
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offProtocolMsg()
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offProtocolMsg = null
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}
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if (offProtocolRadar) {
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offProtocolRadar()
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offProtocolRadar = null
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}
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if (offError) {
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offError()
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offError = null
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}
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}
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async function ensureInitialized() {
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if (initialized) {
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return
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}
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await controller.init()
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controller.ble.watchDeviceFound()
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bindControllerEvents()
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initialized = true
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currentProfileId = controller.ble.getProfile().id
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onProfileChange(currentProfileId)
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}
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async function startDiscoveryWithServices(services = []) {
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await controller.ble.startDiscovery({
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services,
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allowDuplicatesKey: true,
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interval: 0,
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// 兼容低版本客户端：不强制传 powerLevel。
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powerLevel: null
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})
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}
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async function stopDiscoverySilently() {
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try {
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await controller.ble.stopDiscovery()
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} catch (error) {
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}
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}
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async function pullDiscoveredDevicesOnce(sessionId) {
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if (!isSearching || !acceptingDeviceEvents || sessionId !== searchSessionId) {
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return
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}
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try {
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const result = await promisifyUniApi('getBluetoothDevices')
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const list = Array.isArray(result?.devices) ? result.devices : []
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list.forEach((device) => {
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if (!isSearching || !acceptingDeviceEvents || sessionId !== searchSessionId) {
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return
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}
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upsertDevice(device)
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})
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} catch (error) {
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}
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}
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function startDiscoveryPolling(sessionId) {
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clearDiscoveryPollTimer()
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const run = async () => {
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if (!isSearching || !acceptingDeviceEvents || sessionId !== searchSessionId) {
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return
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}
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await pullDiscoveredDevicesOnce(sessionId)
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if (!isSearching || !acceptingDeviceEvents || sessionId !== searchSessionId) {
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return
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}
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discoveryPollTimer = setTimeout(run, DISCOVERY_POLL_INTERVAL_MS)
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}
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discoveryPollTimer = setTimeout(run, 300)
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}
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async function fallbackToUnfilteredDiscoveryIfNeeded(sessionId) {
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clearFallbackTimer()
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filterFallbackTimer = setTimeout(async () => {
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if (!isSearching || !acceptingDeviceEvents || sessionId !== searchSessionId || hasTargetDeviceInMap()) {
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return
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}
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try {
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await stopDiscoverySilently()
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await delay(RESTART_SCAN_DELAY_MS)
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if (!isSearching || !acceptingDeviceEvents || sessionId !== searchSessionId) {
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return
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}
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await startDiscoveryWithServices([])
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} catch (error) {
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}
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}, FILTER_SCAN_TIMEOUT_MS)
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}
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/**
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* 设备搜索：
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* 优先按 0x00F4/0xF400 过滤；若无结果自动切到兜底扫描并轮询 getBluetoothDevices。
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*/
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async function startSearch() {
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if (isSearching) {
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return
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}
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clearFallbackTimer()
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clearDiscoveryPollTimer()
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searchSessionId += 1
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const sessionId = searchSessionId
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resetDeviceMap()
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try {
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await ensureAndroidLocationPermission()
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await ensureInitialized()
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const adapterState = await controller.ble.getAdapterState()
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if (adapterState?.available === false) {
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throw { errCode: 10001 }
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}
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await stopDiscoverySilently()
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acceptingDeviceEvents = true
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try {
|
||
await startDiscoveryWithServices(DISCOVERY_FILTER_SERVICE_UUIDS)
|
||
} catch (error) {
|
||
await startDiscoveryWithServices([])
|
||
}
|
||
|
||
if (sessionId !== searchSessionId) {
|
||
return
|
||
}
|
||
|
||
setSearching(true)
|
||
startDiscoveryPolling(sessionId)
|
||
await fallbackToUnfilteredDiscoveryIfNeeded(sessionId)
|
||
} catch (error) {
|
||
acceptingDeviceEvents = false
|
||
setSearching(false)
|
||
showToast(getBluetoothErrorText(error))
|
||
throw error
|
||
}
|
||
}
|
||
|
||
async function stopSearch(showStopToast = true) {
|
||
clearFallbackTimer()
|
||
clearDiscoveryPollTimer()
|
||
|
||
searchSessionId += 1
|
||
acceptingDeviceEvents = false
|
||
|
||
await stopDiscoverySilently()
|
||
|
||
setSearching(false)
|
||
if (showStopToast) {
|
||
showToast('已停止搜索')
|
||
}
|
||
}
|
||
|
||
function pickPreferredDeviceId(deviceId) {
|
||
if (deviceId) {
|
||
return deviceId
|
||
}
|
||
|
||
const list = getSortedDeviceList()
|
||
return list[0]?.deviceId || ''
|
||
}
|
||
|
||
function applyProfileHintByDevice(deviceId) {
|
||
if (!deviceId) {
|
||
return
|
||
}
|
||
|
||
const hint = deviceMap[deviceId]?.profileHint
|
||
if (!hint || hint === DEVICE_PROFILE.UNKNOWN) {
|
||
return
|
||
}
|
||
|
||
const currentProfile = controller.ble.getProfile().id
|
||
if (currentProfile === DEVICE_PROFILE.UNKNOWN) {
|
||
controller.ble.setProfile(hint)
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 仅连接与发现阶段：连接 -> 发现服务0x00F4 -> 发现特征 -> 订阅 F301/F302。
|
||
*/
|
||
async function connectDevice(deviceId) {
|
||
await ensureInitialized()
|
||
|
||
await stopSearch(false)
|
||
|
||
const targetDeviceId = pickPreferredDeviceId(deviceId)
|
||
if (!targetDeviceId) {
|
||
throw new Error('未找到可连接设备')
|
||
}
|
||
|
||
applyProfileHintByDevice(targetDeviceId)
|
||
|
||
const characteristics = await controller.connectAndDiscover(targetDeviceId)
|
||
currentDeviceId = targetDeviceId
|
||
setConnected(true)
|
||
|
||
return {
|
||
deviceId: targetDeviceId,
|
||
characteristics,
|
||
profile: controller.ble.getProfile(),
|
||
state: controller.ble.getState()
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 鉴权流程：严格遵循协议绑定逻辑（读取 UUID_MSG 的 bindStatus 后写 KEY）。
|
||
*/
|
||
async function authorizeDevice(key, options = {}) {
|
||
if (!currentDeviceId) {
|
||
throw new Error('请先连接设备后再鉴权')
|
||
}
|
||
|
||
const result = await controller.auth.ensureAuthorized(key, options)
|
||
lastAuthResult = result
|
||
onAuthChange(result)
|
||
return result
|
||
}
|
||
|
||
/**
|
||
* 标准连接流程：连接 -> 发现 -> 订阅 -> 鉴权。
|
||
*/
|
||
async function standardConnectFlow(params = {}) {
|
||
await ensureInitialized()
|
||
|
||
await stopSearch(false)
|
||
|
||
const targetDeviceId = pickPreferredDeviceId(params.deviceId)
|
||
if (!targetDeviceId) {
|
||
throw new Error('未找到可连接设备')
|
||
}
|
||
|
||
applyProfileHintByDevice(targetDeviceId)
|
||
|
||
const result = await controller.standardConnectFlow({
|
||
...params,
|
||
deviceId: targetDeviceId
|
||
})
|
||
|
||
currentDeviceId = result.deviceId
|
||
setConnected(true)
|
||
|
||
lastAuthResult = result.authResult
|
||
onAuthChange(result.authResult)
|
||
|
||
return result
|
||
}
|
||
|
||
async function readDeviceInfo() {
|
||
const info = await controller.auth.readDeviceInfo()
|
||
lastDeviceInfo = info
|
||
onDeviceInfoChange(info)
|
||
return info
|
||
}
|
||
|
||
async function configureWifi(ssid, password, options = {}) {
|
||
return controller.wifi.configureWifi(ssid, password, options)
|
||
}
|
||
|
||
async function startRadar() {
|
||
return controller.radar.startRadarStream()
|
||
}
|
||
|
||
async function stopRadar() {
|
||
return controller.radar.stopRadarStream()
|
||
}
|
||
|
||
async function setNarrowMode(enabled) {
|
||
return controller.radar.setNarrowMode(Boolean(enabled))
|
||
}
|
||
|
||
async function writeFallParams(rawParams) {
|
||
return controller.radar.writeFallParams(rawParams)
|
||
}
|
||
|
||
async function sendRadarCommand(commandByte) {
|
||
return controller.radar.sendCommand(commandByte)
|
||
}
|
||
|
||
async function disconnectDevice() {
|
||
await controller.ble.disconnect(currentDeviceId)
|
||
currentDeviceId = ''
|
||
setConnected(false)
|
||
}
|
||
|
||
function getState() {
|
||
const bleState = controller.ble.getState()
|
||
|
||
return {
|
||
isSearching,
|
||
isConnected,
|
||
currentDeviceId,
|
||
currentProfileId: controller.ble.getProfile().id,
|
||
deviceMap: { ...deviceMap },
|
||
deviceList: getSortedDeviceList(),
|
||
lastDeviceInfo,
|
||
lastAuthResult,
|
||
bleState
|
||
}
|
||
}
|
||
|
||
function cleanupDiscovery() {
|
||
clearFallbackTimer()
|
||
clearDiscoveryPollTimer()
|
||
|
||
searchSessionId += 1
|
||
acceptingDeviceEvents = false
|
||
setSearching(false)
|
||
setConnected(false)
|
||
|
||
currentDeviceId = ''
|
||
lastAuthResult = null
|
||
lastDeviceInfo = null
|
||
|
||
unbindControllerEvents()
|
||
|
||
if (!initialized) {
|
||
return
|
||
}
|
||
|
||
initialized = false
|
||
controller.cleanup().catch(() => {})
|
||
}
|
||
|
||
return {
|
||
// 搜索能力（兼容原页面入口）。
|
||
startSearch,
|
||
stopSearch,
|
||
cleanupDiscovery,
|
||
|
||
// 连接与协议流程能力。
|
||
connectDevice,
|
||
authorizeDevice,
|
||
standardConnectFlow,
|
||
disconnectDevice,
|
||
|
||
// 协议业务能力。
|
||
readDeviceInfo,
|
||
configureWifi,
|
||
startRadar,
|
||
stopRadar,
|
||
setNarrowMode,
|
||
writeFallParams,
|
||
sendRadarCommand,
|
||
|
||
// 调试/状态读取。
|
||
getState
|
||
}
|
||
}
|