All files / web/src/hooks useParentSocket.ts

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
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
'use client'

import { useEffect, useRef, useState } from 'react'
import type { Socket } from 'socket.io-client'
import { createSocket } from '@/lib/socket'
import { useQueryClient } from '@tanstack/react-query'
import { invalidateForEvent } from '@/lib/classroom/query-invalidations'
import type {
  EnrollmentApprovedEvent,
  EnrollmentRequestApprovedEvent,
  EnrollmentRequestCreatedEvent,
  EnrollmentRequestDeniedEvent,
  EntryPromptAcceptedEvent,
  EntryPromptCreatedEvent,
  EntryPromptDeclinedEvent,
  StudentUnenrolledEvent,
} from '@/lib/classroom/socket-events'

/**
 * Hook for real-time parent notifications via WebSocket
 *
 * When a teacher adds a student (that the parent is linked to) to their classroom,
 * this hook receives the event and automatically invalidates the React Query cache
 * so the UI updates to show the new pending approval.
 *
 * @param userId - The parent's user ID to subscribe to notifications for
 * @returns Whether the socket is connected
 */
export function useParentSocket(userId: string | undefined): {
  connected: boolean
} {
  const [connected, setConnected] = useState(false)
  const socketRef = useRef<Socket | null>(null)
  const queryClient = useQueryClient()

  useEffect(() => {
    if (!userId) return

    // Create socket connection
    const socket = createSocket({
      reconnection: true,
      reconnectionDelay: 1000,
      reconnectionAttempts: 5,
    })
    socketRef.current = socket

    socket.on('connect', () => {
      console.log('[ParentSocket] Connected')
      setConnected(true)
      // Join the user channel for parent notifications
      socket.emit('join-user-channel', { userId })
    })

    socket.on('disconnect', () => {
      console.log('[ParentSocket] Disconnected')
      setConnected(false)
    })

    // Listen for enrollment request created event (teacher added student to classroom)
    socket.on('enrollment-request-created', (data: EnrollmentRequestCreatedEvent) => {
      console.log(
        '[ParentSocket] Enrollment request created for:',
        data.request.playerName,
        'in classroom:',
        data.request.classroomName
      )
      invalidateForEvent(queryClient, 'requestCreated', {
        classroomId: data.request.classroomId,
        playerId: data.request.playerId,
      })
    })

    // Listen for enrollment request approved event (teacher approved parent's request)
    socket.on('enrollment-request-approved', (data: EnrollmentRequestApprovedEvent) => {
      console.log(
        '[ParentSocket] Enrollment request approved for:',
        data.playerName,
        'by:',
        data.approvedBy
      )
      invalidateForEvent(queryClient, 'requestApproved', {
        classroomId: data.classroomId,
        playerId: data.playerId,
      })
    })

    // Listen for enrollment request denied event (teacher denied parent's request)
    socket.on('enrollment-request-denied', (data: EnrollmentRequestDeniedEvent) => {
      console.log(
        '[ParentSocket] Enrollment request denied for:',
        data.playerName,
        'by:',
        data.deniedBy
      )
      invalidateForEvent(queryClient, 'requestDenied', {
        classroomId: data.classroomId,
        playerId: data.playerId,
      })
    })

    // Listen for enrollment completed event (student fully enrolled)
    socket.on('enrollment-approved', (data: EnrollmentApprovedEvent) => {
      console.log('[ParentSocket] Enrollment completed for:', data.playerName)
      invalidateForEvent(queryClient, 'enrollmentCompleted', {
        classroomId: data.classroomId,
        playerId: data.playerId,
      })
    })

    // Listen for student unenrolled event (child removed from classroom)
    socket.on('student-unenrolled', (data: StudentUnenrolledEvent) => {
      console.log('[ParentSocket] Child unenrolled:', data.playerName, 'from:', data.classroomName)
      invalidateForEvent(queryClient, 'studentUnenrolled', {
        classroomId: data.classroomId,
        playerId: data.playerId,
      })
    })

    // Listen for entry prompt created event (teacher wants child to enter classroom)
    socket.on('entry-prompt-created', (data: EntryPromptCreatedEvent) => {
      console.log(
        '[ParentSocket] Entry prompt from:',
        data.teacherName,
        'for:',
        data.playerName,
        'to enter:',
        data.classroomName
      )
      invalidateForEvent(queryClient, 'entryPromptCreated', {
        classroomId: data.classroomId,
        playerId: data.playerId,
      })
    })

    // Listen for entry prompt accepted event (another parent accepted)
    socket.on('entry-prompt-accepted', (data: EntryPromptAcceptedEvent) => {
      console.log('[ParentSocket] Entry prompt accepted for:', data.playerName)
      invalidateForEvent(queryClient, 'entryPromptAccepted', {
        classroomId: data.classroomId,
        playerId: data.playerId,
      })
    })

    // Listen for entry prompt declined event (another parent declined)
    socket.on('entry-prompt-declined', (data: EntryPromptDeclinedEvent) => {
      console.log('[ParentSocket] Entry prompt declined for:', data.playerName)
      invalidateForEvent(queryClient, 'entryPromptDeclined', {
        classroomId: data.classroomId,
        playerId: data.playerId,
      })
    })

    // Cleanup on unmount
    return () => {
      socket.disconnect()
      socketRef.current = null
    }
  }, [userId, queryClient])

  return { connected }
}