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

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;
    },
  };
}