import { Pipe, PipeTransform } from '@angular/core';
import { formatDistanceToNow, parseISO } from 'date-fns';

@Pipe({
  name: 'relativeTime',
  standalone: true
})
export class RelativeTimePipe implements PipeTransform {
  transform(value: string | Date | null | undefined): string {
    if (!value) {
      return '-';
    }

    try {
      const date = typeof value === 'string' ? parseISO(value) : value;
      return formatDistanceToNow(date, { addSuffix: true });
    } catch {
      return '-';
    }
  }
}