// @vitest-environment nuxt
import { describe, it, expect, beforeEach } from 'vitest';
import { useUnits } from '../use-units';

describe('useUnits', () => {
  beforeEach(() => {
    localStorage.clear();
    useNuxtApp().payload.state = {};
  });

  it('по умолчанию metric', () => {
    const { units } = useUnits();
    expect(units.value).toBe('metric');
  });

  it('imperial для US', () => {
    useState<string>('clientCountryCode', () => 'us');
    const { units } = useUnits();
    expect(units.value).toBe('imperial');
  });

  it('imperial для Liberia', () => {
    useState<string>('clientCountryCode', () => 'lr');
    const { units } = useUnits();
    expect(units.value).toBe('imperial');
  });

  it('берёт сохранённое значение из localStorage', () => {
    localStorage.setItem('units', 'imperial');
    const { units } = useUnits();
    expect(units.value).toBe('imperial');
  });

  it('localStorage приоритетнее country code', () => {
    useState<string>('clientCountryCode', () => 'us');
    localStorage.setItem('units', 'metric');
    const { units } = useUnits();
    expect(units.value).toBe('metric');
  });

  it('hiddenByUnits для metric — скрывает дюймы и фунты', () => {
    const { hiddenByUnits } = useUnits();
    expect(hiddenByUnits.value).toEqual(new Set(['height_in', 'weight_lb']));
  });

  it('hiddenByUnits для imperial — скрывает см и кг', () => {
    localStorage.setItem('units', 'imperial');
    const { hiddenByUnits } = useUnits();
    expect(hiddenByUnits.value).toEqual(new Set(['height_cm', 'weight_kg']));
  });
});