Function estimateImageCost

src/proxy.ts:1670–1676

* Estimate the cost of an image generation/editing request. * Matches server-side calculateImagePrice() including 5% margin.

(model: string, size?: string, n: number = 1)

 * Matches server-side calculateImagePrice() including 5% margin.
 */
function estimateImageCost(model: string, size?: string, n: number = 1): number {
  const pricing = IMAGE_PRICING[model];
  if (!pricing) return 0.04 * n * 1.05; // fallback: assume $0.04/image + margin
  const sizePrice = size && pricing.sizes ? pricing.sizes[size] : undefined;
  const pricePerImage = sizePrice ?? pricing.default;
  return pricePerImage * n * 1.05; // 5% server margin
}

/**
 * Proxy a paid BlockRun data request through x402 payment flow.