import { executeQuerySingle } from '@/lib/clickhouse';
import { StatsOverview } from '../types';

/**
 * Get overview statistics for links
 */
export async function findStatsOverview(): Promise<StatsOverview | null> {
  const query = `
    WITH 
      toUInt64(count()) as total_links,
      toUInt64(countIf(is_active = true)) as active_links
    FROM links
    SELECT
      total_links as totalLinks,
      active_links as activeLinks,
      (SELECT count() FROM link_events) as totalVisits,
      (SELECT count() FROM link_events) / NULLIF(total_links, 0) as conversionRate
  `;
  
  return await executeQuerySingle<StatsOverview>(query);
}