import { json, PLANS, paypalAccessToken, paypalBase, verifyFirebaseUser } from './_utils.js';
export async function onRequestPost({ request, env }){
  try{
    const user = await verifyFirebaseUser(request);
    const body = await request.json().catch(()=>({}));
    const planKey = String(body.plan || '').toLowerCase();
    const plan = PLANS[planKey];
    if(!plan) return json({ error: 'Invalid plan' }, 400);
    const token = await paypalAccessToken(env);
    const res = await fetch(`${paypalBase(env)}/v2/checkout/orders`, {
      method: 'POST',
      headers: { 'authorization': `Bearer ${token}`, 'content-type': 'application/json', 'prefer': 'return=representation' },
      body: JSON.stringify({
        intent: 'CAPTURE',
        purchase_units: [{
          custom_id: `${user.uid}:${planKey}`,
          description: `NovaKit Studio ${plan.label} - Cloud Access`,
          amount: { currency_code: 'EUR', value: plan.amount },
          invoice_id: `NK-${planKey}-${Date.now()}`
        }]
      })
    });
    const data = await res.json().catch(()=>({}));
    if(!res.ok) return json({ error: data.message || data.error || 'PayPal order failed', details: data }, 500);
    return json({ id: data.id });
  }catch(e){ return json({ error: e.message || String(e) }, 500); }
}