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

@Pipe({
    name: 'formatDuration',
    standalone: true,
})
export class FormatDurationPipe implements PipeTransform {
    transform(time: {
        days: number;
        hours: number;
        minutes: number;
        seconds: number;
    }): string {
        if (!time || !time.hasOwnProperty(eUnit.HOURS)) {
            return `0${eUnit.MINUTES_SHORT}`;
        }

        const minutesRoundedToFive = Math.trunc(time.minutes / 5) * 5;

        const timeUnits = [
            { value: time.days, label: eUnit.DAYS_SHORT },
            { value: time.hours, label: eUnit.HOURS_SHORT },
            { value: minutesRoundedToFive, label: eUnit.MINUTES_SHORT },
        ];

        const filteredUnits = timeUnits.filter(
            (unit) => unit.value > 0 || unit.label === eUnit.MINUTES_SHORT
        );

        const topUnits = filteredUnits.slice(0, 2);
        return topUnits
            .map((unit) => {
                return `${unit.value}${unit.label}`;
            })
            .join(' ');
    }
}