268 lines
7.7 KiB
TypeScript
268 lines
7.7 KiB
TypeScript
import studentScreenShareApi from '@/api/subject/studentScreenShare'
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import { $XXL } from '@/utils'
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import { userStore } from '@/stores'
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import { useTips } from './useTips'
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let monitorSessionId = ''
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let monitorState: 0 | 1 = 0
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let closeMonitorTip: (() => void) | null = null
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/** 旧版课堂监控 WS 类型 */
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const MONITOR_MSG_TYPE = 'monitorStart'
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const MONITOR_STOP_MSG_TYPE = 'monitorStop'
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/** 新版学生投屏 WS 类型 */
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const STUDENT_SCREEN_SHARE_START = 'studentScreenShareStart'
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const STUDENT_SCREEN_SHARE_STOP = 'studentScreenShareStop'
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const MONITOR_WS_TYPES = new Set([
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MONITOR_MSG_TYPE,
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MONITOR_STOP_MSG_TYPE,
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STUDENT_SCREEN_SHARE_START,
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STUDENT_SCREEN_SHARE_STOP,
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])
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const MONITOR_LOG_PREFIX = '[class-monitor]'
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const monitorLog = (...args: unknown[]) => console.log(MONITOR_LOG_PREFIX, ...args)
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const monitorWarn = (...args: unknown[]) => console.warn(MONITOR_LOG_PREFIX, ...args)
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const showMonitorTip = (tips: string) => {
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closeMonitorTip?.()
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closeMonitorTip = useTips({
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tips,
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showCancel: false,
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})
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}
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const mergeMonitorPayload = (data: anyObj): anyObj => {
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const msg = data?.msg && typeof data.msg === 'object' && !Array.isArray(data.msg) ? data.msg : {}
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return {
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...(data && typeof data === 'object' ? data : {}),
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...msg,
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}
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}
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const getMonitorSessionKey = (msg: anyObj) => {
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const key =
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msg?.sessionId ??
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msg?.startedAt ??
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msg?.classId ??
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msg?.monitorSessionId ??
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msg?.classMonitorSessionId
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return key !== undefined && key !== null ? String(key).trim() : ''
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}
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const applyStudentShareStart = (msg: anyObj): boolean => {
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const host = msg.ip !== undefined && msg.ip !== null ? String(msg.ip) : ''
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const port = Number(msg.port)
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if (!host || !Number.isFinite(port)) {
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monitorWarn('startStudentShareScreen missing ip/port', msg)
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return false
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}
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const u = userStore().userInfo
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const config = {
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host,
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port,
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name: String(u?.name || u?.nickName || ''),
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id: String(u?.userId ?? ''),
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}
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monitorLog('startStudentShareScreen config', config)
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$XXL.startStudentShareScreen(config)
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return true
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}
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const startStudentShareScreenLive = (msg: anyObj) => {
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const sessionKey = getMonitorSessionKey(msg)
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monitorLog('start student screen share', msg)
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if (monitorState === 1 && sessionKey && monitorSessionId === sessionKey) {
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monitorLog('start ignored, session already running', sessionKey)
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return
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}
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stopClassMonitor()
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monitorSessionId = sessionKey
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monitorState = 1
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showMonitorTip('已进入课堂监控状态')
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if (!applyStudentShareStart(msg)) {
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monitorState = 0
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monitorSessionId = ''
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}
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}
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/** 与老师讲解 WS 等场景兼容：外层 type 可能是 push/classMessage，监控类型在 msg.type 或 data.type */
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export const resolveMonitorWsType = (data: anyObj): string | undefined => {
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const candidates = [data?.msg?.type, data?.type]
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const inner = (data as Record<string, unknown>).data
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if (inner && typeof inner === 'object') {
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candidates.push((inner as anyObj).type)
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}
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for (const t of candidates) {
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if (typeof t === 'string' && MONITOR_WS_TYPES.has(t)) return t
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}
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return undefined
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}
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export const stopClassMonitor = (showTip = false) => {
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const isMonitoring = !!monitorSessionId || monitorState === 1
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monitorLog('stop monitor', { showTip, isMonitoring, monitorSessionId, monitorState })
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if (monitorState === 1) {
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$XXL.stopStudentShareScreen()
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}
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if (showTip && isMonitoring) {
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showMonitorTip('已结束课堂监控')
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}
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monitorSessionId = ''
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monitorState = 0
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}
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const startClassMonitor = (msg: anyObj) => {
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const sessionId = msg?.sessionId
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monitorLog('start monitor message', msg)
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if (!sessionId) {
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monitorWarn('start monitor ignored because sessionId is empty')
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return
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}
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if (monitorState === 1 && monitorSessionId === String(sessionId)) {
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monitorLog('start monitor ignored because session is already running', sessionId)
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return
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}
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stopClassMonitor()
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monitorSessionId = String(sessionId)
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monitorState = 1
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showMonitorTip('已进入课堂监控状态')
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if (!applyStudentShareStart(msg)) {
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monitorState = 0
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monitorSessionId = ''
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}
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}
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const getMonitorSessionId = (data: anyObj) => {
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const sessionId =
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data?.sessionId ||
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data?.monitorSessionId ||
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data?.classMonitorSessionId ||
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data?.monitorInfo?.sessionId ||
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data?.classMonitor?.sessionId
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return typeof sessionId === 'string' || typeof sessionId === 'number'
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? String(sessionId).trim()
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: ''
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}
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export const handleClassMonitorMessage = (data: anyObj) => {
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const monitorType = resolveMonitorWsType(data)
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monitorLog('handle monitor ws message', { monitorType, data })
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if (!monitorType) return false
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const msg = mergeMonitorPayload(data)
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if (monitorType === STUDENT_SCREEN_SHARE_STOP || monitorType === MONITOR_STOP_MSG_TYPE) {
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stopClassMonitor(true)
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return true
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}
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if (monitorType === STUDENT_SCREEN_SHARE_START) {
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startStudentShareScreenLive(msg)
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return true
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}
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if (monitorType !== MONITOR_MSG_TYPE) return false
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const monitoring = msg?.monitoring
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if (monitoring === true || monitoring === 'true') {
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startClassMonitor(msg)
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return true
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}
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if (monitoring === false || monitoring === 'false') {
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stopClassMonitor(true)
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return true
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}
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return false
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}
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const resolveStudentScreenShareClassId = (msg: Record<string, unknown>): string => {
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if (msg.classId !== undefined && msg.classId !== null && String(msg.classId).trim() !== '') {
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return String(msg.classId)
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}
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const userClassId = userStore().userInfo?.classId
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if (userClassId !== undefined && userClassId !== null && String(userClassId).trim() !== '') {
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return String(userClassId)
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}
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return ''
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}
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/**
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* 同步 getHomePage 返回的 studentScreenShareState
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* sharing 为 true 时开启学生监控投屏，否则停止
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*/
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export const syncStudentScreenShareState = async (state: unknown) => {
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const stateInfo = state && typeof state === 'object' ? (state as Record<string, unknown>) : {}
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const screenShare = stateInfo.studentScreenShareState
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if (!screenShare || typeof screenShare !== 'object') return
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const share = screenShare as Record<string, unknown>
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if (share.sharing !== true) {
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stopClassMonitor(false)
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return
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}
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let msg: anyObj = { ...share }
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const host = msg.ip !== undefined && msg.ip !== null ? String(msg.ip) : ''
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const port = Number(msg.port)
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if (!host || !Number.isFinite(port)) {
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const classId = resolveStudentScreenShareClassId(msg)
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if (!classId) return
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try {
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const res = await studentScreenShareApi.state(classId)
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if (!res?.sharing) return
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msg = { ...msg, ip: res.ip, port: res.port, classId: res.classId ?? classId }
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} catch (err) {
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monitorWarn('首页学生监控状态补全失败:', err)
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return
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}
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}
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const sessionKey = getMonitorSessionKey(msg)
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if (monitorState === 1 && sessionKey && monitorSessionId === sessionKey) {
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applyStudentShareStart(msg)
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return
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}
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stopClassMonitor()
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monitorSessionId = sessionKey
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monitorState = 1
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if (!applyStudentShareStart(msg)) {
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monitorState = 0
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monitorSessionId = ''
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}
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}
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export const syncClassMonitorState = (state: unknown) => {
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const stateInfo = state && typeof state === 'object' ? (state as anyObj) : {}
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const nextState = Number(stateInfo.monitorState ?? state)
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if (nextState !== 0 && nextState !== 1) return
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if (nextState === 0) {
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stopClassMonitor(true)
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return
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}
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const sessionId = getMonitorSessionId(stateInfo)
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if (!sessionId) {
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monitorWarn('sync monitor state ignored because sessionId is empty', stateInfo)
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if (monitorState !== 1 && applyStudentShareStart(stateInfo)) {
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monitorState = 1
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}
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return
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}
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startClassMonitor({
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...stateInfo,
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sessionId,
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})
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}
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