import { describe, expect, it } from 'vitest';
import { formatCount, formatDuration, formatHours, formatKm, formatRelative, formatUnit, prettyId } from '@/lib/format';

describe('format', () => {
  it('formats counts with German grouping', () => {
    expect(formatCount(1234)).toBe('1.234');
    expect(formatCount(1234567)).toBe('1.234.567');
    expect(formatCount(0)).toBe('0');
  });

  it('formats hours with one decimal and unit', () => {
    expect(formatHours(1175736 / 72000)).toBe('16,3 h');
    expect(formatHours(1234.5)).toBe('1.234,5 h');
  });

  it('formats kilometres', () => {
    expect(formatKm(2)).toBe('2,0 km');
    expect(formatKm(32.337)).toBe('32,3 km');
  });

  it('formats by board unit', () => {
    expect(formatUnit(16.33, 'hours')).toBe('16,3 h');
    expect(formatUnit(5, 'count')).toBe('5');
    expect(formatUnit(1200, 'blocks')).toBe('1.200');
    expect(formatUnit(2, 'km')).toBe('2,0 km');
  });

  it('formats relative times', () => {
    const now = Date.UTC(2026, 9, 13, 12, 0, 0);
    expect(formatRelative(now - 20_000, now)).toBe('gerade eben');
    expect(formatRelative(now - 5 * 60_000, now)).toBe('vor 5 Min.');
    expect(formatRelative(now - 3 * 3600_000, now)).toBe('vor 3 Std.');
    expect(formatRelative(now - 2 * 86_400_000, now)).toBe('vor 2 Tagen');
    expect(formatRelative(null, now)).toBe('nie');
  });

  it('formats durations', () => {
    expect(formatDuration(45 * 60_000)).toBe('45 Min.');
    expect(formatDuration(125 * 60_000)).toBe('2 Std. 5 Min.');
  });

  it('turns resource ids into readable names', () => {
    expect(prettyId('minecraft:wither_skeleton')).toBe('Wither Skeleton');
    expect(prettyId('minecraft:play_time')).toBe('Play Time');
    expect(prettyId('allthemodium:the_other')).toBe('The Other');
  });
});