Function isLuckmailMailNewerThanCursor

luckmail-utils.js:259–289

(mail = {}, cursor = {})

  }

  function isLuckmailMailNewerThanCursor(mail = {}, cursor = {}) {
    const normalizedMail = normalizeLuckmailTokenMail(mail);
    const normalizedCursor = normalizeLuckmailMailCursor(cursor);

    if (!normalizedCursor.messageId && !normalizedCursor.receivedAt) {
      return true;
    }

    if (normalizedMail.message_id && normalizedCursor.messageId && normalizedMail.message_id === normalizedCursor.messageId) {
      return false;
    }

    const mailTimestamp = normalizeTimestamp(normalizedMail.received_at);
    const cursorTimestamp = normalizeTimestamp(normalizedCursor.receivedAt);

    if (mailTimestamp && cursorTimestamp) {
      if (mailTimestamp > cursorTimestamp) return true;
      if (mailTimestamp < cursorTimestamp) return false;
      return Boolean(
        normalizedMail.message_id
        && normalizedCursor.messageId
        && normalizedMail.message_id !== normalizedCursor.messageId
      );
    }

    if (normalizedMail.message_id && normalizedCursor.messageId) {
      return normalizedMail.message_id !== normalizedCursor.messageId;
    }

    return !cursorTimestamp || Boolean(mailTimestamp && mailTimestamp > cursorTimestamp);
  }

  function isLuckmailPurchaseExpired(purchase, now = Date.now()) {
    const normalizedPurchase = normalizeLuckmailPurchase(purchase);