// RSS feed list page renderer.

const { renderView } = require('../../../view');

function formatIntervalLabel(interval, unit) {
  const value = Math.max(1, Number(interval) || 0);
  const normalizedUnit = String(unit || 'minutes').trim().toLowerCase();
  if (normalizedUnit === 'seconds') {
    return value === 1 ? 'Every second' : `Every ${value} seconds`;
  }
  if (normalizedUnit === 'hours') {
    return value === 1 ? 'Every hour' : `Every ${value} hours`;
  }
  return value === 1 ? 'Every minute' : `Every ${value} minutes`;
}

function formatItemLabel(count) {
  const value = Math.max(1, Number(count) || 0);
  return value === 1 ? 'Latest item' : `Latest ${value} items`;
}

module.exports = function renderRssFeedsPage(data, message, currentUser) {
  const rssFeeds = (data.rssFeeds || []).map(function (rssFeed) {
    return Object.assign({}, rssFeed, {
        intervalLabel: formatIntervalLabel(rssFeed.update_interval_value, rssFeed.update_interval_unit),
      itemLabel: formatItemLabel(rssFeed.item_limit)
    });
  });

  return renderView('data-sources/rss-feeds/list', {
    title: 'RSS feeds',
    active: 'rss-feeds',
    message: message,
    currentUser: currentUser || null,
    rssFeeds: rssFeeds,
    pagination: data.pagination || null
  });
};