"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
exports.onUserDelete = void 0;
const admin = __importStar(require("firebase-admin"));
const v1_1 = require("firebase-functions/v1");
const push_1 = require("../notifications/push");
const log_1 = require("../log");
/**
 * Auth deletion trigger — cascades account deletion server-side.
 *
 * This is the ONE function kept on the v1 (1st-gen) API: 2nd gen has no
 * `auth.user().onDelete` equivalent, so it is imported explicitly from
 * firebase-functions/v1 and coexists with the v2 functions in this codebase.
 * Global v2 options (setGlobalOptions) do not apply to it, so the timeout/memory
 * for its dual recursiveDelete + Storage sweep are set here via runWith().
 *
 * Fires when a Firebase Auth user is deleted (via client deleteAccount() or
 * Admin SDK). The Admin SDK bypasses Firestore rules, so this function can
 * reach everything the client cannot.
 *
 * Steps (all best-effort after the auth account is already gone):
 *  1. If the user was in a couple:
 *     a. Clear the partner's coupleId.
 *     b. Send the partner an FCM push notification.
 *     c. Recursively delete the couple doc + all subcollections.
 *  2. Delete all Storage objects under users/{uid}/ (profile photo etc.).
 *  3. Recursively delete the user doc + all subcollections
 *     (entitlements, fcmTokens, notification_queue).
 */
exports.onUserDelete = (0, v1_1.runWith)({ timeoutSeconds: 300, memory: '512MB' })
    .auth.user()
    .onDelete(async (user) => {
    var _a, _b, _c, _d;
    const uid = user.uid;
    const db = admin.firestore();
    // ── 1. Couple unpair ──────────────────────────────────────────────────────
    const userDocRef = db.collection('users').doc(uid);
    const userDoc = await userDocRef.get();
    const coupleId = userDoc.exists
        ? (_a = userDoc.data()) === null || _a === void 0 ? void 0 : _a.coupleId
        : undefined;
    if (coupleId) {
        const coupleRef = db.collection('couples').doc(coupleId);
        const coupleDoc = await coupleRef.get();
        if (coupleDoc.exists) {
            const userIds = ((_c = (_b = coupleDoc.data()) === null || _b === void 0 ? void 0 : _b.userIds) !== null && _c !== void 0 ? _c : []);
            const partnerId = userIds.find((id) => id !== uid);
            if (partnerId) {
                const partnerRef = db.collection('users').doc(partnerId);
                const partnerDoc = await partnerRef.get();
                // Only act if the partner is still recorded in this couple.
                if (partnerDoc.exists && ((_d = partnerDoc.data()) === null || _d === void 0 ? void 0 : _d.coupleId) === coupleId) {
                    // Clear partner's coupleId first so the onCoupleLeave trigger does
                    // not fire a second time (it would find no partner left to notify).
                    await partnerRef.update({ coupleId: null });
                    // Send push notification to the partner.
                    await notifyPartner(partnerId, partnerDoc, db).catch((err) => {
                        log_1.logger.warn(`[onUserDelete] FCM notification to partner ${partnerId} failed`, { error: String(err) });
                    });
                }
            }
            // Recursively delete the couple doc + all subcollections.
            await db.recursiveDelete(coupleRef);
        }
    }
    // ── 2. Storage cleanup ────────────────────────────────────────────────────
    try {
        await admin.storage().bucket().deleteFiles({ prefix: `users/${uid}/` });
    }
    catch (err) {
        log_1.logger.warn(`[onUserDelete] Storage cleanup failed for ${uid}`, { error: String(err) });
    }
    // ── 3. User doc + subcollections ──────────────────────────────────────────
    await db.recursiveDelete(userDocRef);
    log_1.logger.log(`[onUserDelete] completed cleanup for user ${uid}`);
});
async function notifyPartner(partnerId, partnerDoc, db) {
    const partnerData = partnerDoc.data();
    // Preserve the original behavior: only write the in-app record + push if the partner has a
    // live device token (nothing to deliver otherwise).
    const tokens = await (0, push_1.getUserTokens)(db, partnerId, partnerData);
    if (tokens.length === 0)
        return;
    // Write an in-app notification record.
    await db
        .collection('users')
        .doc(partnerId)
        .collection('notification_queue')
        .add({
        type: 'partner_deleted_account',
        title: 'Your partner deleted their account',
        body: 'You are no longer paired. Tap to create a new invite.',
        read: false,
        createdAt: admin.firestore.FieldValue.serverTimestamp(),
    });
    await (0, push_1.sendPushToUser)(db, admin.messaging(), partnerId, {
        notification: {
            title: 'Your partner deleted their account',
            body: 'You are no longer paired. Tap to create a new invite.',
        },
        android: { notification: { channelId: 'partner_activity' } }, // E-OBS
        data: { type: 'partner_deleted_account' },
    }, partnerData);
}
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