export class UserId {
  private constructor(public readonly value: bigint) {}

  static create(value: bigint | string | number): UserId {
    const bigIntValue = typeof value === 'bigint' ? value : BigInt(value);
    if (bigIntValue <= 0n) {
      throw new Error('用户ID必须大于0');
    }
    return new UserId(bigIntValue);
  }

  equals(other: UserId): boolean {
    return this.value === other.value;
  }

  toString(): string {
    return this.value.toString();
  }
}