61 lines
1.7 KiB
TypeScript
61 lines
1.7 KiB
TypeScript
import { DomainError } from '@/shared/exceptions/domain.exception';
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/**
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* 账户序列号值对象
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* 格式: D + 年(2位) + 月(2位) + 日(2位) + 5位序号
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* 示例: D2512110008 -> 2025年12月11日的第8个注册用户
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*/
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export class AccountSequence {
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private static readonly PATTERN = /^D\d{11}$/;
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constructor(public readonly value: string) {
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if (!AccountSequence.PATTERN.test(value)) {
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throw new DomainError(
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`账户序列号格式无效: ${value}，应为 D + 年月日(6位) + 序号(5位)`,
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);
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}
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}
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static create(value: string): AccountSequence {
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return new AccountSequence(value);
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}
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/**
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* 根据日期和当日序号生成新的账户序列号
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* @param date 日期
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* @param dailySequence 当日序号 (0-99999)
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*/
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static generate(date: Date, dailySequence: number): AccountSequence {
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if (dailySequence < 0 || dailySequence > 99999) {
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throw new DomainError(`当日序号超出范围: ${dailySequence}，应为 0-99999`);
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}
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const year = String(date.getFullYear()).slice(-2);
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const month = String(date.getMonth() + 1).padStart(2, '0');
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const day = String(date.getDate()).padStart(2, '0');
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const seq = String(dailySequence).padStart(5, '0');
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return new AccountSequence(`D${year}${month}${day}${seq}`);
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}
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/**
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* 从序列号中提取日期字符串 (YYMMDD)
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*/
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get dateString(): string {
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return this.value.slice(1, 7);
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}
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/**
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* 从序列号中提取当日序号
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*/
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get dailySequence(): number {
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return parseInt(this.value.slice(7), 10);
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}
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equals(other: AccountSequence): boolean {
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return this.value === other.value;
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}
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toString(): string {
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return this.value;
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}
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}
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