import { NextResponse } from 'next/server';
import { mainAirports, secondaryAirports, calculateAirportData } from '@/lib/utils/metar';

export async function GET() {
  try {
    const allAirports = [...mainAirports, ...secondaryAirports];
    const promises = allAirports.map(async (airport) => {
      const url = `https://avwx.rest/api/metar/${airport}`;
      const response = await fetch(url, {
        headers: {
          'Authorization': 'Bearer vmtkb1D8Tuva2Jw2tXihWcKE3m2sfDJkySBZygVx82I'
        },
        next: { revalidate: 60 } // Cache for 1 minutes
      });
      
      if (!response.ok) return null;
      const data = await response.json();
      return calculateAirportData(airport, data);
    });

    const results = await Promise.all(promises);
    const validResults = results.filter(Boolean);

    return NextResponse.json(validResults);
  } catch (error) {
    return NextResponse.json({ error: 'Failed to fetch METAR data' }, { status: 500 });
  }
}