56 lines
1.2 KiB
TypeScript
56 lines
1.2 KiB
TypeScript
import type { ValueObject } from '@core/shared/domain/ValueObject';
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import { IdentityDomainValidationError } from '../errors/IdentityDomainError';
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export interface RatingDeltaProps {
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value: number;
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}
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export class RatingDelta implements ValueObject<RatingDeltaProps> {
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readonly value: number;
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private constructor(value: number) {
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this.value = value;
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}
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static create(value: number): RatingDelta {
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if (typeof value !== 'number' || isNaN(value)) {
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throw new IdentityDomainValidationError('Rating delta must be a valid number');
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}
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if (value < -500 || value > 500) {
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throw new IdentityDomainValidationError(
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`Rating delta must be between -500 and 500, got: ${value}`
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);
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}
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return new RatingDelta(value);
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}
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get props(): RatingDeltaProps {
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return { value: this.value };
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}
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equals(other: ValueObject<RatingDeltaProps>): boolean {
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return this.value === other.props.value;
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}
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toNumber(): number {
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return this.value;
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}
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toString(): string {
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return this.value.toString();
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}
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isPositive(): boolean {
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return this.value > 0;
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}
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isNegative(): boolean {
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return this.value < 0;
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}
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isZero(): boolean {
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return this.value === 0;
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}
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} |