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

@Pipe({
	name: 'relativeTime',
	standalone: true,
})
export class RelativeTimePipe implements PipeTransform {
	transform(unixtime: number): string {
		const now = Math.floor(Date.now() / 1000);
		const diff = now - unixtime;

		if (diff < 60) {
			return 'Justo ahora';
		}

		if (diff < 3600) {
			const minutes = Math.floor(diff / 60);
			return `Hace ${minutes} minuto${minutes !== 1 ? 's' : ''}`;
		}

		if (diff < 86400) {
			const hours = Math.floor(diff / 3600);
			return `Hace ${hours} hora${hours !== 1 ? 's' : ''}`;
		}

		if (diff < 604800) {
			const days = Math.floor(diff / 86400);
			return `Hace ${days} dia${days !== 1 ? 's' : ''}`;
		}

		const date = new Date(unixtime * 1000);
		const currentYear = new Date().getFullYear();
		const options: Intl.DateTimeFormatOptions = {
			month: 'short',
			day: 'numeric',
		};

		if (date.getFullYear() !== currentYear) {
			options.year = 'numeric';
		}

		return date.toLocaleDateString('es-MX', options);
	}
}