export type ProductCashFeeSource = {
  cash_fee_buy?: number | null
  cash_fee_sell?: number | null
  cash_fee_buy_is_percent?: boolean | null
  cash_fee_sell_is_percent?: boolean | null
}

/** 0.5 => 0.5% ، 5 => 5% */
export function resolveCashFeePercentRatio(percentValue?: number | null) {
  const offset = Number(percentValue ?? 0)
  if (!offset || !Number.isFinite(offset)) {
    return 0
  }

  return offset / 100
}

export function resolveProductCashFeeRial(
  feeValue: number | null | undefined,
  isPercent: boolean | null | undefined,
  basePriceRial: number,
) {
  const raw = Number(feeValue ?? 0)
  if (!raw || !Number.isFinite(raw)) {
    return 0
  }

  if (!isPercent) {
    return Math.round(raw)
  }

  const base = Number(basePriceRial)
  if (!base || base <= 0) {
    return 0
  }

  return Math.round(Math.abs(base * resolveCashFeePercentRatio(raw)))
}

export function resolveProductCashFeeBuyRial(product: ProductCashFeeSource, basePriceRial: number) {
  return resolveProductCashFeeRial(
    product.cash_fee_buy,
    product.cash_fee_buy_is_percent,
    basePriceRial,
  )
}

export function resolveProductCashFeeSellRial(product: ProductCashFeeSource, basePriceRial: number) {
  return resolveProductCashFeeRial(
    product.cash_fee_sell,
    product.cash_fee_sell_is_percent,
    basePriceRial,
  )
}