const { renderView } = require('#src/web/view');

function formatInterval(value, unit) {
  const amount = Math.max(1, Number(value) || 0);
  const normalized = String(unit || 'minutes');
  return 'Every ' + amount + ' ' + normalized.replace(/s$/, '') + (amount === 1 ? '' : 's');
}

module.exports = function renderWeatherLocationsPage(data, message, currentUser) {
  return renderView('data-sources/weather/list', {
    title: 'Weather locations', active: 'weather', message, currentUser: currentUser || null,
    weatherLocations: (data.weatherLocations || []).map(function (location) {
      return Object.assign({}, location, { intervalLabel: formatInterval(location.update_interval_value, location.update_interval_unit) });
    }), pagination: data.pagination || null
  });
};