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* Attendance Store
* Manages RSVP responses with optimistic updates
*/
import type { AttendanceResponse, AttendanceStatus, AttendanceCount } from '~/types'
import { useApi } from '~/services/api'
interface AttendanceState {
/** Map of eventId -> array of responses */
responsesByEvent: Map<string, AttendanceResponse[]>
loading: boolean
error: string | null
}
export const useAttendanceStore = defineStore('attendance', {
state: (): AttendanceState => ({
responsesByEvent: new Map(),
loading: false,
error: null
}),
getters: {
/**
* Get responses for a specific event
*/
getResponsesForEvent: (state: AttendanceState) => {
return (eventId: string): AttendanceResponse[] => {
return state.responsesByEvent.get(eventId) || []
}
},
/**
* Get a user's response for a specific event
*/
getUserResponse: (state: AttendanceState) => {
return (eventId: string, userId: string): AttendanceResponse | undefined => {
const responses = state.responsesByEvent.get(eventId) || []
return responses.find(r => r.userId === userId)
}
},
/**
* Get attendance count for an event
*/
getAttendanceCount: (state: AttendanceState) => {
return (eventId: string): AttendanceCount => {
const responses = state.responsesByEvent.get(eventId) || []
return {
yes: responses.filter(r => r.status === 'yes').length,
no: responses.filter(r => r.status === 'no').length,
maybe: responses.filter(r => r.status === 'maybe').length
}
}
}
},
actions: {
/**
* Fetch attendance for an event
*/
async fetchAttendance(eventId: string) {
this.loading = true
this.error = null
try {
const api = useApi()
const responses = await api.getAttendance(eventId)
this.responsesByEvent.set(eventId, responses)
} catch (e) {
this.error = e instanceof Error ? e.message : 'Failed to load attendance'
console.error('[Attendance Store] fetchAttendance error:', e)
} finally {
this.loading = false
}
},
/**
* Submit RSVP with optimistic update
*/
async submitRSVP(
eventId: string,
userId: string,
status: AttendanceStatus
): Promise<boolean> {
this.error = null
// Create optimistic response
const now = new Date().toISOString()
const optimisticResponse: AttendanceResponse = {
id: `temp-${Date.now()}`,
eventId,
userId,
status,
createdAt: now,
updatedAt: now
}
// Get current responses for this event
const currentResponses = this.responsesByEvent.get(eventId) || []
const existingIndex = currentResponses.findIndex(r => r.userId === userId)
// Store previous state for rollback
const previousResponses = [...currentResponses]
// Apply optimistic update
if (existingIndex !== -1) {
currentResponses[existingIndex] = optimisticResponse
} else {
currentResponses.push(optimisticResponse)
}
this.responsesByEvent.set(eventId, [...currentResponses])
try {
const api = useApi()
const confirmedResponse = await api.submitRSVP({
eventId,
userId,
status
})
// Update with server response
const responses = this.responsesByEvent.get(eventId) || []
const index = responses.findIndex(r => r.userId === userId)
if (index !== -1) {
responses[index] = confirmedResponse
this.responsesByEvent.set(eventId, [...responses])
}
return true
} catch (e) {
// Rollback on error
this.responsesByEvent.set(eventId, previousResponses)
this.error = e instanceof Error ? e.message : 'Failed to submit RSVP'
console.error('[Attendance Store] submitRSVP error:', e)
return false
}
},
/**
* Clear attendance data for an event
*/
clearEventAttendance(eventId: string) {
this.responsesByEvent.delete(eventId)
},
/**
* Clear all attendance data
*/
clearAll() {
this.responsesByEvent.clear()
this.error = null
},
/**
* Clear error state
*/
clearError() {
this.error = null
}
}
})
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