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refactor: calculate utility

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This commit is contained in:
Methapon Metanipat 2024-10-04 13:01:30 +07:00
parent 9535774a30
commit 3b1e84b6d8
2 changed files with 12 additions and 7 deletions
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15
src/controllers/05-quotation-controller.ts
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@ -22,6 +22,7 @@ import {
} from "../services/permission"; } from "../services/permission";
import { isSystem } from "../utils/keycloak"; import { isSystem } from "../utils/keycloak";
import { isUsedError, notFoundError, relationError } from "../utils/error"; import { isUsedError, notFoundError, relationError } from "../utils/error";
import { precisionRound } from "../utils/arithmetic";
type QuotationCreate = { type QuotationCreate = {
status?: Status; status?: Status;
@ -332,14 +333,14 @@ export class QuotationController extends Controller {
const price = list.reduce( const price = list.reduce(
(a, c) => { (a, c) => {
const price = c.pricePerUnit * c.amount; const price = precisionRound(c.pricePerUnit * c.amount);
const discount = Math.round(price * (c.discount || 0) * 100) / 100; const discount = precisionRound(price - (c.discount || 0));
const vat = Math.round((price - discount) * c.vat * 100) / 100; const vat = precisionRound((price - discount) * c.vat);
a.totalPrice += price; a.totalPrice = precisionRound(a.totalPrice + price);
a.totalDiscount += discount; a.totalDiscount = precisionRound(a.totalDiscount + discount);
a.vat += vat; a.vat = precisionRound(a.vat + vat);
a.finalPrice += price - discount + vat; a.finalPrice = precisionRound(a.totalPrice - a.totalDiscount + a.vat);
return a; return a;
}, },

4
src/utils/arithmetic.ts Normal file
View file

@ -0,0 +1,4 @@
export function precisionRound(number: number, precision = 2) {
var factor = Math.pow(10, precision);
return Math.round(number * factor) / factor;
}