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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 | 'use client' import { useCallback, useEffect, useRef, useState } from 'react' import type { Socket } from 'socket.io-client' import { createSocket } from '@/lib/socket' import { useStudentPresence } from './useClassroom' import type { SkillTutorialStateEvent, SkillTutorialControlEvent, SkillTutorialControlAction, } from '@/lib/classroom/socket-events' import type { SkillTutorialBroadcastState } from '@/components/tutorial/SkillTutorialLauncher' export type { SkillTutorialBroadcastState } interface UseSkillTutorialBroadcastResult { /** Whether connected to the socket */ isConnected: boolean /** Whether actively broadcasting */ isBroadcasting: boolean } /** * Hook to broadcast skill tutorial state to observers via WebSocket * * Only broadcasts if the student is currently present in a classroom. * This enables teachers to observe student tutorials in real-time. * * @param playerId - The student's player ID * @param playerName - The student's display name * @param state - Current tutorial state (or null if not viewing a tutorial) * @param onControlReceived - Callback when a control event is received from teacher */ export function useSkillTutorialBroadcast( playerId: string | undefined, playerName: string | undefined, state: SkillTutorialBroadcastState | null, onControlReceived?: (action: SkillTutorialControlAction) => void ): UseSkillTutorialBroadcastResult { const socketRef = useRef<Socket | null>(null) const [isConnected, setIsConnected] = useState(false) // Keep state in a ref so socket event handlers can access current state const stateRef = useRef<SkillTutorialBroadcastState | null>(null) stateRef.current = state // Keep callback in ref to avoid effect re-runs when callback changes const onControlReceivedRef = useRef(onControlReceived) onControlReceivedRef.current = onControlReceived // Keep player info in refs for stable socket event handlers const playerIdRef = useRef(playerId) playerIdRef.current = playerId const playerNameRef = useRef(playerName) playerNameRef.current = playerName // Check if student is present in a classroom const { data: presence } = useStudentPresence(playerId) const isInClassroom = !!presence?.classroomId const classroomId = presence?.classroomId // Helper to broadcast current state (uses refs, no dependencies that change) const broadcastState = useCallback(() => { const currentState = stateRef.current const pid = playerIdRef.current const pname = playerNameRef.current if (!socketRef.current?.connected || !pid || !pname || !currentState) { return } const event: SkillTutorialStateEvent = { playerId: pid, playerName: pname, launcherState: currentState.launcherState, skillId: currentState.skillId, skillTitle: currentState.skillTitle, tutorialState: currentState.tutorialState, } socketRef.current.emit('skill-tutorial-state', event) console.log('[SkillTutorialBroadcast] Emitted skill-tutorial-state:', { launcherState: currentState.launcherState, skillId: currentState.skillId, hasTutorialState: !!currentState.tutorialState, tutorialStep: currentState.tutorialState?.currentStepIndex, }) }, []) // No dependencies - uses refs // Connect to socket and join classroom channel when in classroom with active tutorial // Only depends on: whether we have a state, whether we're in classroom, and classroom ID const shouldConnect = !!state && !!playerId && !!playerName && isInClassroom && !!classroomId // Store classroomId in ref for use in socket handlers const classroomIdRef = useRef(classroomId) classroomIdRef.current = classroomId useEffect(() => { // Track if this effect is still mounted let isMounted = true if (!shouldConnect || !classroomId) { // Clean up if we were connected if (socketRef.current) { console.log( '[SkillTutorialBroadcast] Disconnecting - no longer in classroom or tutorial ended' ) socketRef.current.disconnect() socketRef.current = null setIsConnected(false) } return } // Already connected to the same classroom? Don't create a new socket if (socketRef.current?.connected) { console.log('[SkillTutorialBroadcast] Already connected, skipping socket creation') return } // Clean up any existing socket before creating a new one if (socketRef.current) { console.log('[SkillTutorialBroadcast] Cleaning up existing disconnected socket') socketRef.current.disconnect() socketRef.current = null } // Create socket connection console.log( '[SkillTutorialBroadcast] Creating new socket connection for classroom:', classroomId ) const socket = createSocket({ reconnection: true, reconnectionDelay: 1000, reconnectionAttempts: 5, }) socketRef.current = socket const currentClassroomId = classroomId // Capture for closure socket.on('connect', () => { // Only proceed if still mounted if (!isMounted) { console.log('[SkillTutorialBroadcast] Connected but effect unmounted, ignoring') return } console.log( '[SkillTutorialBroadcast] Connected, joining classroom channel:', currentClassroomId ) setIsConnected(true) // Join the classroom channel for skill tutorial events socket.emit('join-classroom', { classroomId: currentClassroomId }) // Broadcast current state immediately broadcastState() }) socket.on('disconnect', () => { if (!isMounted) return console.log('[SkillTutorialBroadcast] Disconnected') setIsConnected(false) }) // Listen for control events from teacher socket.on('skill-tutorial-control', (data: SkillTutorialControlEvent) => { if (!isMounted) return // Only handle events for this player - use ref for current value if (data.playerId !== playerIdRef.current) return console.log('[SkillTutorialBroadcast] Received control:', data.action) onControlReceivedRef.current?.(data.action) }) return () => { isMounted = false console.log('[SkillTutorialBroadcast] Cleaning up socket connection') socket.emit('leave-classroom', { classroomId: currentClassroomId }) socket.disconnect() socketRef.current = null setIsConnected(false) } // Only re-run when shouldConnect or classroomId actually changes // eslint-disable-next-line react-hooks/exhaustive-deps }, [shouldConnect, classroomId]) // Broadcast state changes useEffect(() => { broadcastState() }, [ broadcastState, state?.launcherState, state?.skillId, state?.tutorialState?.currentStepIndex, state?.tutorialState?.currentMultiStep, state?.tutorialState?.currentValue, state?.tutorialState?.isStepCompleted, ]) return { isConnected, isBroadcasting: isConnected && isInClassroom && !!state, } } |