import defaultImg from '@/assets/img/defaultAbshodeh.svg'
import goyImg from '@/assets/img/goyImg.svg'
import mokaabImg from '@/assets/img/mokaabImg.svg'
import sekkeImg from '@/assets/img/sekkeImg.svg'
import parsianImg from '@/assets/img/parsianImg.svg'
import venusImg from '@/assets/img/venousImg.svg'

export type ProductImageSource = {
  file?: { src?: string | null } | null
  group_type?: string | null
} | null | undefined

function isUsableImageSrc(src?: string | null): boolean {
  if (!src) return false
  const value = src.trim()
  return value !== '' && value !== 'null' && value !== 'undefined'
}

export function getProductFallbackImage(product?: ProductImageSource): string {
  const type = (product?.group_type ?? '').trim()
  if (!type) return defaultImg

  const exactMap: Record<string, string> = {
    گوی: goyImg,
    مکعب: mokaabImg,
    سکه: sekkeImg,
    'شمش ونوس': venusImg,
    'سکه پارسیان': parsianImg,
    شمش: defaultImg,
    آبشده: defaultImg,
  }

  if (exactMap[type]) return exactMap[type]

  if (type.includes('پارسیان')) return parsianImg
  if (type.includes('ونوس')) return venusImg
  if (type.includes('گوی')) return goyImg
  if (type.includes('مکعب')) return mokaabImg
  if (type.includes('سکه')) return sekkeImg
  if (type.includes('شمش')) return defaultImg

  return defaultImg
}

export function resolveProductImageSrc(product?: ProductImageSource): string {
  const remoteSrc = product?.file?.src
  if (isUsableImageSrc(remoteSrc)) {
    return remoteSrc!.trim()
  }
  return getProductFallbackImage(product)
}