95 lines
2.8 KiB
TypeScript
95 lines
2.8 KiB
TypeScript
import * as functions from 'firebase-functions'
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import * as admin from 'firebase-admin'
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type ReminderType = 'daily_question' | 'partner_answered' | 'streak'
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interface NotificationPayload {
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userId: string
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type: ReminderType
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title?: string
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body?: string
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}
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/**
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* Callable function that queues a daily-question reminder.
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*
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* Expected body: { userId: string }
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* Auth context supplies the caller uid; the request `userId` must match
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* the caller to prevent cross-user notification spam.
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*
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* This is a placeholder scheduler. The actual daily scheduling will be
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* handled by a Firestore trigger / Cloud Scheduler integration later.
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*/
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export const sendDailyQuestionReminder = functions.https.onCall(async (data: NotificationPayload, context) => {
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const callerId = context.auth?.uid
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if (!callerId) {
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throw new functions.https.HttpsError('unauthenticated', 'Caller must be authenticated.')
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}
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const userId = data.userId
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if (!userId || typeof userId !== 'string') {
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throw new functions.https.HttpsError('invalid-argument', 'userId is required.')
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}
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// Users may only request reminders for themselves.
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if (userId !== callerId) {
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throw new functions.https.HttpsError('permission-denied', 'Cannot send notifications to another user.')
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}
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await writeNotificationRecord(userId, 'daily_question', {
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title: data.title ?? 'Your daily question is waiting!',
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body: data.body ?? "Tap to answer today's question together.",
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})
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return { queued: true, type: 'daily_question' }
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})
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/**
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* Callable function that queues a partner-answered notification.
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*
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* Expected body: { userId: string }
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* Auth context must match the request `userId`.
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*/
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export const sendPartnerAnsweredNotification = functions.https.onCall(async (data: NotificationPayload, context) => {
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const callerId = context.auth?.uid
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if (!callerId) {
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throw new functions.https.HttpsError('unauthenticated', 'Caller must be authenticated.')
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}
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const userId = data.userId
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if (!userId || typeof userId !== 'string') {
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throw new functions.https.HttpsError('invalid-argument', 'userId is required.')
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}
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if (userId !== callerId) {
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throw new functions.https.HttpsError('permission-denied', 'Cannot send notifications to another user.')
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}
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await writeNotificationRecord(userId, 'partner_answered', {
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title: data.title ?? 'Your partner just answered!',
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body: data.body ?? 'See what your partner shared.',
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})
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return { queued: true, type: 'partner_answered' }
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})
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async function writeNotificationRecord(
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userId: string,
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type: ReminderType,
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message: { title: string; body: string }
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): Promise<void> {
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const db = admin.firestore()
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await db
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.collection('users')
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.doc(userId)
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.collection('notification_queue')
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.add({
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type,
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...message,
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read: false,
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sent: false,
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createdAt: admin.firestore.FieldValue.serverTimestamp(),
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})
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}
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