36 lines
1.0 KiB
TypeScript
36 lines
1.0 KiB
TypeScript
import { Discount } from "../../model";
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export function findPrivilegeDiscount(
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privilegeId: string,
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privilegePrice: number,
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discounts: Discount[],
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userId: string,
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): Discount | null {
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const applicableDiscounts = discounts.filter(discount => {
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if (discount.Condition.User !== "" && discount.Condition.User === userId) return true;
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return (
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discount.Layer === 1 &&
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privilegeId === discount.Condition.Product &&
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privilegePrice >= Number(discount.Condition.Term)
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);
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});
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if (!applicableDiscounts.length) return null;
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let maxValueDiscount: Discount = applicableDiscounts[0];
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for (const discount of applicableDiscounts) {
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if (discount.Condition.User !== "" && discount.Condition.User === userId) {
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maxValueDiscount = discount;
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break;
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}
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if (Number(discount.Condition.Term) > Number(maxValueDiscount.Condition.Term)) {
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maxValueDiscount = discount;
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}
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}
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return maxValueDiscount;
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}
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