import type { MerchantInboundBilling } from '../types/inboundBilling'

/** Published billing quantity and physical gross weight have different meanings. */
export function orderBillingMetric(billing: MerchantInboundBilling | null, measuredChargeableWeight: number | null) {
  if (billing) {
    const basis = billing.billingBasis
    return basis.chargeUnit === 'KG'
      ? { label: '计费重量', quantity: basis.chargeableQuantity, unit: 'kg' }
      : basis.chargeUnit === 'CBM'
        ? { label: '计费体积', quantity: basis.chargeableQuantity, unit: 'm³' }
        : { label: '计费量', quantity: null, unit: '' }
  }
  return { label: '计费重量', quantity: measuredChargeableWeight, unit: 'kg' }
}