memind/notification-dispatcher.mjs

export const WECHAT_SCHEDULE_NOTIFICATION_NOT_SENT =
  'WECHAT_SCHEDULE_NOTIFICATION_NOT_SENT';

export function resolveWechatDispatchSent(result) {
  if (result && typeof result === 'object') {
    return result.sent !== false && !result.deferred && !result.skipped;
  }
  return result !== false;
}

export async function deliverWechatScheduleNotification(
  sendScheduleNotification,
  payload,
) {
  const result = await sendScheduleNotification({
    ...payload,
    verifiedHtmlUrls: Array.isArray(payload?.verifiedHtmlUrls) ? payload.verifiedHtmlUrls : [],
  });
  if (!resolveWechatDispatchSent(result)) {
    const err = new Error('微信提醒发送未完成（deferred、skipped 或未绑定）');
    err.code = WECHAT_SCHEDULE_NOTIFICATION_NOT_SENT;
    throw err;
  }
}

export function createNotificationDispatcher({ sendWechatTextToUser, logger = console } = {}) {
  const sendWechat = async (userId, text, options = {}) => {
    if (typeof sendWechatTextToUser !== 'function') return false;
    const result = await sendWechatTextToUser(userId, text, options);
    return resolveWechatDispatchSent(result);
  };

  return {
    async sendRechargeSuccess({ userId, title, body, dedupeKey = null }) {
      const sent = await sendWechat(userId, `${title}\n${body}`.trim());
      logger.info?.('Notification dispatch:', {
        type: 'recharge_success',
        userId,
        dedupeKey,
        sent,
      });
      return sent;
    },
    async sendScheduleNotification({ userId, text, verifiedHtmlUrls = [] }) {
      const sent = await sendWechat(userId, text, { verifiedHtmlUrls });
      logger.info?.('Notification dispatch:', {
        type: 'schedule_notification',
        userId,
        dedupeKey: null,
        sent,
        verifiedHtmlCount: verifiedHtmlUrls.length,
      });
      return sent;
    },
    async sendHealthEventNotification({ userId, title, body, eventId = null, severity = 'alert' }) {
      const text = `${title}\n${body}`.trim();
      const sent = await sendWechat(userId, text);
      logger.info?.('Notification dispatch:', {
        type: 'health_event_notification',
        userId,
        dedupeKey: eventId,
        severity,
        sent,
      });
      return sent;
    },
  };
}