import { MoneyValue, Percentage, Quantity } from "@shared/contexts";
import { IMoney, IPercentage, IQuantity } from "./types";

export const calculateItemTotals = (item: {
  quantity?: IQuantity;
  retail_price?: IMoney;
  discount?: IPercentage;
}): {
  quantity: Quantity;
  retailPrice: MoneyValue;
  price: MoneyValue;
  discount: Percentage;
  total: MoneyValue;
} => {
  const { quantity: quantityValue, retail_price: retailPriceValue, discount: discountValue } = item;

  console.log({
    quantityValue,
    retailPriceValue,
    discountValue,
  });

  const quantityOrError = Quantity.create(quantityValue);
  if (quantityOrError.isFailure) {
    throw quantityOrError.error;
  }
  const quantity = quantityOrError.object;

  const retailPriceOrError = MoneyValue.create(retailPriceValue);
  if (retailPriceOrError.isFailure) {
    throw retailPriceOrError.error;
  }
  const retailPrice = retailPriceOrError.object;

  const discountOrError = Percentage.create(discountValue);
  if (discountOrError.isFailure) {
    throw discountOrError.error;
  }
  const discount = discountOrError.object;

  const price = retailPrice.multiply(quantity.toNumber());
  const total = price.subtract(price.percentage(discount.toNumber()));

  return {
    quantity,
    retailPrice,
    price,
    discount,
    total,
  };

  /*return {
    quantity: quantity.toObject(),
    retail_price: retailPrice.toObject(),
    price: price.toObject(),
    discount: discount.toObject(),
    total: total.toObject(),
  };*/
};