import {Duration} from '@/';
import {describe, it, assert} from 'vitest';

describe('Duration', () => {
  describe('Duration.from', () => {
    it('Duration.parse', function () {
      let duration = Duration.from('P10DT11S')!;
      assert.ok(duration);
      assert.equal(duration.days, 10);
      assert.equal(duration.hours, 0);
      assert.equal(duration.minutes, 0);
      assert.equal(duration.seconds, 11);
      assert.equal(duration.milliseconds, 0);
    });

    it('Duration.parse (full)', function () {
      let duration = Duration.from('P1Y2M3W10DT12H24M48S')!;
      assert.ok(duration);
      assert.equal(duration.sign, 1);
      assert.equal(duration.years, 1);
      assert.equal(duration.months, 2);
      assert.equal(duration.weeks, 3);
      assert.equal(duration.days, 10);
      assert.equal(duration.hours, 12);
      assert.equal(duration.minutes, 24);
      assert.equal(duration.seconds, 48);
      assert.equal(duration.milliseconds, 0);
    });

    it('parses duration with + sign', function () {
      let duration = Duration.from('+P1Y2M3W10DT12H24M48S')!;
      assert.ok(duration);
      assert.equal(duration.sign, 1);
      assert.equal(duration.years, 1);
      assert.equal(duration.months, 2);
      assert.equal(duration.weeks, 3);
      assert.equal(duration.days, 10);
      assert.equal(duration.hours, 12);
      assert.equal(duration.minutes, 24);
      assert.equal(duration.seconds, 48);
      assert.equal(duration.milliseconds, 0);
    });

    it('parses negative durations', function () {
      let duration = Duration.from('-P1Y2M3W10DT12H24M48S')!;
      assert.ok(duration);
      assert.equal(duration.sign, -1);
      assert.equal(duration.years, -1);
      assert.equal(duration.months, -2);
      assert.equal(duration.weeks, -3);
      assert.equal(duration.days, -10);
      assert.equal(duration.hours, -12);
      assert.equal(duration.minutes, -24);
      assert.equal(duration.seconds, -48);
      assert.equal(duration.milliseconds, 0);
    });

    it('creats empty durations', () => {
      let empty = new Duration();
      assert.ok(empty);
      assert.equal(empty.sign, 0);
      assert.equal(empty.toJSON(), 'PT0S');
    });

    it('throws for mixed durations', () => {
      assert.throws(() => {
        new Duration(0, 0, 1, -1);
      });
    });

    it('Duration.parse (ms)', function () {
      let duration = Duration.from('PT12.24S')!;
      assert.ok(duration);
      assert.equal(duration.days, 0);
      assert.equal(duration.hours, 0);
      assert.equal(duration.minutes, 0);
      assert.equal(duration.seconds, 12);
      assert.equal(duration.milliseconds, 240);
    });

    it('returns null', function () {
      assert.throws(
        () => {
          Duration.from('PoloS');
        },
        'Invalid ISO8601 string',
        'throws error when format is invalid',
      );
    });
  });
  describe('toJSON', function () {
    it('works', () => {
      let duration = Duration.from('P1Y2M3W10DT12H24M48S')!;
      assert.ok(duration, 'Parses duration string');
      assert.equal(duration.toJSON(), 'P1Y2M3W10DT12H24M48S');
    });
    it('prints 0 duration', () => {
      let duration = new Duration();
      assert.equal(duration.toJSON(), 'PT0S');
    });

    it('prints negative duration', () => {
      let duration = Duration.from({days: -1, minutes: -1});
      assert.equal(duration.toJSON(), '-P1DT1M');
    });
  });
});