import { Injectable } from '@nestjs/common';

/**
 * Injectable wall clock. Anything that needs to reason about "now" for
 * retention/cadence math should go through this instead of calling `new
 * Date()` directly, so tests can simulate time passing (issue #31's
 * time-travel purge test) by overriding `now()` on the DI-provided
 * instance instead of faking the global clock.
 */
@Injectable()
export class ClockService {
  now(): Date {
    return new Date();
  }
}