const points = new Map();

function filterQueries(queries, filterStrings) {
  const matchingDomains = new Set();
  if (!queries || !queries.data) {
    return matchingDomains;
  }

  for (const query of queries.data) {
    const { domain, status } = query;
    // Status 1: Blocked by gravity
    // Status 4: Blocked by regex/wildcard
    if (status === '1' || status === '4') { 
      for (const filterString of filterStrings) {
        if (domain.toLowerCase().includes(filterString.toLowerCase())) {
          matchingDomains.add(domain);
          break; 
        }
      }
    }
  }
  return matchingDomains;
}

function addPoint(domain, expirationSeconds, logger, config, discord) {
  const now = Date.now();
  const expiration = now + expirationSeconds * 1000;
  points.set(domain, expiration);
  logger.info(`Point added for ${domain}. Total points: ${points.size}`);
  if (config.notifications && config.notifications.discordWebhookUrl) {
    discord.sendMessage(config.notifications.discordWebhookUrl, `Point added for ${domain}. Total points: ${points.size}`, logger);
  }
}

function getPointsCount() {
  return points.size;
}

function checkAndExpirePoints(logger) {
  const now = Date.now();
  for (const [domain, expiration] of points.entries()) {
    if (now > expiration) {
      points.delete(domain);
      logger.info(`Point expired for ${domain}. Total points: ${points.size}`);
    }
  }
}

function clearPoints(logger) {
  points.clear();
  logger.info('All points have been cleared.');
}

module.exports = { filterQueries, addPoint, getPointsCount, checkAndExpirePoints, clearPoints };