import { DatePipe } from '@angular/common';
import { Pipe, PipeTransform } from '@angular/core';

@Pipe({
  standalone: true,
  name: 'dateFormat',
})
export class DateFormatPipe implements PipeTransform {
  transform(value: Date | null) {
    if (!value) return;

    const today = new Date();
    const yesterday = new Date(today);
    yesterday.setDate(yesterday.getDate() - 1);

    const timeFormat = new DatePipe('en-US').transform(value, 'HH:mm a');

    if (
      value.getFullYear() == today.getFullYear() &&
      value.getMonth() == today.getMonth() &&
      value.getDate() == today.getDate()
    ) {
      return `Today, ${timeFormat}`;
    } else if (
      value.getFullYear() == yesterday.getFullYear() &&
      value.getMonth() == yesterday.getMonth() &&
      value.getDate() == yesterday.getDate()
    ) {
      return `Yesterday, ${timeFormat}`;
    } else {
      return new DatePipe('en-US').transform(value, 'dd/MM/yyyy, HH:mm');
    }
  }
}