"use strict";
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    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
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    Object.defineProperty(o, "default", { enumerable: true, value: v });
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    o["default"] = v;
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var __importStar = (this && this.__importStar) || (function () {
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        ownKeys = Object.getOwnPropertyNames || function (o) {
            var ar = [];
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    };
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.claimOnce = claimOnce;
exports.notifMark = notifMark;
const admin = __importStar(require("firebase-admin"));
const log_1 = require("../log");
/** gRPC status for a create() that hit an existing document. */
const ALREADY_EXISTS = 6;
/**
 * Best-effort one-time claim for a notification event, keyed by a deterministic marker doc.
 *
 * Background triggers are delivered AT LEAST ONCE, so a redelivery of the same event would
 * otherwise double-send a push. `create()` is an atomic create-if-absent: the first delivery
 * writes the marker and returns true; a redelivery finds it present and returns false, so the
 * caller skips. Claim right before sending — a suppressed (quiet-hours / opted-out) notification
 * should not burn a claim.
 *
 * Fail-OPEN: if create() fails for any reason OTHER than "already claimed", return true and let
 * the notification proceed. A rare duplicate is better UX than a silently dropped ping, and it
 * keeps an infra blip on the marker write from swallowing every notification. The trade this makes
 * explicit: at-least-once → at-most-once (a send failure AFTER the claim drops that one push).
 */
async function claimOnce(markRef) {
    try {
        await markRef.create({ claimedAt: admin.firestore.FieldValue.serverTimestamp() });
        return true;
    }
    catch (e) {
        if (e.code === ALREADY_EXISTS)
            return false;
        log_1.logger.warn('[claimOnce] marker create failed; proceeding without dedupe', {
            path: markRef.path,
            error: String(e),
        });
        return true;
    }
}
/** Standard per-couple marker ref for a notification event (`couples/{id}/notif_marks/{markId}`). */
function notifMark(db, coupleId, markId) {
    return db.collection('couples').doc(coupleId).collection('notif_marks').doc(markId);
}
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