// app/api/events/[event_id]/results/route.ts
import { query } from '@/lib/db';
import { NextResponse, NextRequest } from 'next/server';

export const dynamic = 'force-dynamic';

export async function GET(
  request: NextRequest,
  context: { params: Promise<{ event_id: string }> }
) { 

    const { event_id } = await context.params;

  try {
    const standingsSql = `
      SELECT 
        tcs.team_id,
        t.name as team_name,
        tcs.total_points,
        tcs.races_participated,
        tcs.best_finish,
        json_agg(
          json_build_object(
            'driver_guid', u.driver_guid,
            'driver_name', u.driver_name,
            'position', er.position,
            'points_awarded', er.points_awarded,
            'laps_completed', er.laps_completed,
            'dnf', er.dnf
          ) ORDER BY er.position ASC
        ) as drivers
      FROM team_championship_standings tcs
      JOIN teams t ON tcs.team_id = t.id
      LEFT JOIN event_results er ON tcs.event_id = er.event_id AND tcs.team_id = er.team_id
      LEFT JOIN users u ON er.driver_guid = u.driver_guid
      WHERE tcs.event_id = $1
      GROUP BY tcs.team_id, t.name, tcs.total_points, tcs.races_participated, tcs.best_finish
      ORDER BY tcs.total_points DESC, tcs.best_finish ASC
    `;
    
    const standings = await query(standingsSql, [event_id]);

    return NextResponse.json({ standings });
  } catch (error) {
    console.error('[Event Results API] Error:', error);
    return NextResponse.json({ error: 'Failed to fetch results' }, { status: 500 });
  }
}