60 lines
1.5 KiB
TypeScript
60 lines
1.5 KiB
TypeScript
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import { MoneyValue, Percentage, Quantity } from "@shared/contexts";
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import { IMoney, IPercentage, IQuantity } from "./types";
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export const calculateItemTotals = (item: {
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quantity?: IQuantity;
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retail_price?: IMoney;
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discount?: IPercentage;
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}): {
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quantity: Quantity;
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retailPrice: MoneyValue;
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price: MoneyValue;
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discount: Percentage;
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total: MoneyValue;
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} => {
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const { quantity: quantityValue, retail_price: retailPriceValue, discount: discountValue } = item;
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console.log({
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quantityValue,
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retailPriceValue,
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discountValue,
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});
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const quantityOrError = Quantity.create(quantityValue);
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if (quantityOrError.isFailure) {
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throw quantityOrError.error;
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}
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const quantity = quantityOrError.object;
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const retailPriceOrError = MoneyValue.create(retailPriceValue);
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if (retailPriceOrError.isFailure) {
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throw retailPriceOrError.error;
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}
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const retailPrice = retailPriceOrError.object;
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const discountOrError = Percentage.create(discountValue);
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if (discountOrError.isFailure) {
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throw discountOrError.error;
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}
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const discount = discountOrError.object;
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const price = retailPrice.multiply(quantity.toNumber());
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const total = price.subtract(price.percentage(discount.toNumber()));
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return {
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quantity,
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retailPrice,
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price,
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discount,
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total,
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};
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/*return {
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quantity: quantity.toObject(),
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retail_price: retailPrice.toObject(),
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price: price.toObject(),
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discount: discount.toObject(),
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total: total.toObject(),
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};*/
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};
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