const corsHeaders = {
  'Access-Control-Allow-Origin': '*',
  'Access-Control-Allow-Headers': 'authorization, x-client-info, apikey, content-type',
};

Deno.serve(async (req) => {
  if (req.method === 'OPTIONS') {
    return new Response(null, { headers: corsHeaders });
  }

  const apiKey = Deno.env.get('GOOGLE_MAPS_API_KEY');
  if (!apiKey) {
    return new Response(
      JSON.stringify({ error: 'Google Maps API key not configured' }),
      { status: 500, headers: { ...corsHeaders, 'Content-Type': 'application/json' } }
    );
  }

  return new Response(
    JSON.stringify({ key: apiKey }),
    { headers: { ...corsHeaders, 'Content-Type': 'application/json', 'Cache-Control': 'private, max-age=3600' } }
  );
});