// dr-pieces generate --api stripe --endpoint payment_intents.create
// Generated: 2026-03-30 · TypeScript 5.4 · v2.4.1

import type { Stripe } from './stripe.types';

interface CreatePaymentIntentParams {
  amount:   number;
  currency: 'usd' | 'eur' | 'gbp';
  customer?:  string;
  metadata?:  Record<string, string>;
}

export async function createPaymentIntent(
  params: CreatePaymentIntentParams
): Promise<Stripe.PaymentIntent> {
  const { STRIPE_SECRET_KEY } = process.env;

  if (!STRIPE_SECRET_KEY) {
    throw new Error('STRIPE_SECRET_KEY is not configured');
  }

  const body = new URLSearchParams({
    amount:   params.amount.toString(),
    currency: params.currency,
    ...(params.customer && { customer: params.customer }),
    ...(params.metadata && Object.fromEntries(
      Object.entries(params.metadata).map(([k, v]) => [`metadata[${k}]`, v])
    )),
  });

  const response = await fetch('https://api.stripe.com/v1/payment_intents', {
    method:  'POST',
    headers: {
      'Authorization': `Bearer ${STRIPE_SECRET_KEY}`,
      'Content-Type':  'application/x-www-form-urlencoded',
    },
    body,
  });

  if (!response.ok) {
    const error: Stripe.ApiError = await response.json();
    throw new Error(`Stripe [${error.error.code}]: ${error.error.message}`);
  }

  return response.json() as Promise<Stripe.PaymentIntent>;
}