import { NextRequest, NextResponse } from 'next/server';

export const dynamic = 'force-dynamic';

const BACKEND_URL = process.env.BACKEND_URL || 'http://localhost:3000';

/**
 * Futures proxy (Wave 2A, S25 rule). Forwards to the Express
 * `/api/futures/:sport` (quota-disciplined championship outrights).
 * Degrades to an empty-but-valid board so the hub never blows up.
 */
export async function GET(req: NextRequest, { params }: { params: Promise<{ sport: string }> }) {
  const { sport } = await params;
  const sportLc = String(sport || '').toLowerCase();
  const qs = req.nextUrl.search;
  try {
    const upstream = await fetch(`${BACKEND_URL}/api/futures/${encodeURIComponent(sportLc)}${qs}`, {
      method: 'GET',
      headers: { Accept: 'application/json' },
    });
    const data = await upstream.json().catch(() => ({}));
    if (!upstream.ok) return NextResponse.json(data, { status: upstream.status });
    return NextResponse.json(data);
  } catch {
    return NextResponse.json({ sport: sportLc, updated_at: new Date().toISOString(), markets: [] });
  }
}