Closer/functions/dist/questions/onAnswerWritten.js

"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
exports.onAnswerWritten = void 0;
const admin = __importStar(require("firebase-admin"));
const firestore_1 = require("firebase-functions/v2/firestore");
const quietHours_1 = require("../notifications/quietHours");
const push_1 = require("../notifications/push");
const idempotency_1 = require("../notifications/idempotency");
const log_1 = require("../log");
/**
 * Firestore trigger that sends an FCM notification to the other partner when
 * one partner writes an answer under
 * couples/{coupleId}/daily_question/{date}/answers/{userId}.
 *
 * The notification payload is a data message so the client can route directly to
 * the answer reveal screen. It also contains a `notification` block for
 * system-tray display when the app is in the background.
 */
exports.onAnswerWritten = (0, firestore_1.onDocumentCreated)('couples/{coupleId}/daily_question/{date}/answers/{userId}', async (event) => {
    var _a, _b, _c;
    const { coupleId, date, userId } = event.params;
    const snap = event.data;
    if (!snap)
        return;
    const db = admin.firestore();
    const coupleDoc = await db.collection('couples').doc(coupleId).get();
    if (!coupleDoc.exists) {
        log_1.logger.warn(`[onAnswerWritten] couple ${coupleId} not found`);
        return;
    }
    const userIds = ((_b = (_a = coupleDoc.data()) === null || _a === void 0 ? void 0 : _a.userIds) !== null && _b !== void 0 ? _b : []);
    // Security review Batch 2: re-verify the writer actually belongs to this couple
    // before sending a cross-user notification. Firestore rules already enforce this,
    // but defense-in-depth ensures a stray/forged answer doc can't trigger a partner ping.
    if (!userIds.includes(userId)) {
        log_1.logger.warn(`[onAnswerWritten] writer ${userId} is not a member of couple ${coupleId}`);
        return;
    }
    const partnerId = userIds.find((uid) => uid !== userId);
    if (!partnerId) {
        log_1.logger.warn(`[onAnswerWritten] no partner found for couple ${coupleId}`);
        return;
    }
    const partnerUserDoc = await db.collection('users').doc(partnerId).get();
    const partnerData = partnerUserDoc.data();
    // Respect the partner's notification preference (opt-out; default is enabled).
    if ((partnerData === null || partnerData === void 0 ? void 0 : partnerData.notifPartnerAnswered) === false) {
        log_1.logger.log(`[onAnswerWritten] partner ${partnerId} has partner-answered notifications off`);
        return;
    }
    // M-001: honor the recipient's quiet-hours window ("no notifications" promise). Fail-open.
    if ((0, quietHours_1.recipientInQuietHours)(partnerData)) {
        log_1.logger.log(`[onAnswerWritten] partner ${partnerId} is in quiet hours — suppressing`);
        return;
    }
    // Dedupe: at-least-once delivery can redeliver this create; claim once so a redelivery
    // doesn't double-ping the partner (at-most-once: a post-claim send failure drops this one).
    if (!(await (0, idempotency_1.claimOnce)((0, idempotency_1.notifMark)(db, coupleId, `answer-${date}-${userId}`)))) {
        log_1.logger.log(`[onAnswerWritten] already notified for ${userId}'s answer on ${date}; skipping`);
        return;
    }
    const answerData = snap.data();
    const questionId = typeof answerData.questionId === 'string' ? answerData.questionId : '';
    // Sender (the partner who just answered) avatar — used as the notification large icon.
    const senderDoc = await db.collection('users').doc(userId).get();
    const senderAvatar = (_c = senderDoc.data()) === null || _c === void 0 ? void 0 : _c.photoUrl;
    // Did this answer COMPLETE the pair? If the recipient (partner) has already answered, the
    // reveal just unlocked for both — tell them it's ready to open, instead of "go answer".
    const partnerAnswerSnap = await db
        .collection('couples').doc(coupleId)
        .collection('daily_question').doc(date)
        .collection('answers').doc(partnerId).get();
    const bothAnswered = partnerAnswerSnap.exists;
    const res = await (0, push_1.sendPushToUser)(db, admin.messaging(), partnerId, {
        notification: bothAnswered
            ? {
                title: 'Your answers are unlocked ✨',
                body: "You've both answered — open to see what you each said.",
            }
            : {
                title: 'Your partner just answered!',
                body: "See what they shared for tonight's prompt.",
            },
        data: Object.assign({ type: 'partner_answered', couple_id: coupleId, question_id: questionId, date }, (typeof senderAvatar === 'string' && senderAvatar.length > 0
            ? { sender_avatar_url: senderAvatar }
            : {})),
        android: { notification: { channelId: 'partner_activity' } }, // E-OBS
    }, partnerData);
    if (res.sent === 0 && res.failed === 0) {
        log_1.logger.log(`[onAnswerWritten] no FCM tokens for partner ${partnerId}`);
        return;
    }
    // Track last activity time on the couple doc for re-engagement targeting.
    await db.collection('couples').doc(coupleId).update({
        lastAnsweredAt: admin.firestore.FieldValue.serverTimestamp(),
    }).catch((e) => log_1.logger.warn('[onAnswerWritten] lastAnsweredAt update failed', { error: String(e) }));
    log_1.logger.log(`[onAnswerWritten] notified partner ${partnerId} for couple ${coupleId} question ${questionId}`);
});
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