/* eslint-env jest */
import {
  articleCostCredits,
  formatCredits,
  generatedFieldsCostCredits,
  kbDocumentCostNote,
  regenerateCostCredits,
} from '../credit-costs';

describe('credit costs', () => {
  it('prices each language version of a piece as an article', () => {
    expect(articleCostCredits(1)).toBe(200);
    expect(articleCostCredits(3)).toBe(600);
    expect(articleCostCredits(0)).toBe(200);
  });

  it('prices a regeneration like writing the row again', () => {
    expect(regenerateCostCredits('blog')).toBe(200);
    expect(regenerateCostCredits(undefined)).toBe(200);
    expect(regenerateCostCredits('social')).toBe(25);
  });

  it('prices generated content per field, per product', () => {
    expect(generatedFieldsCostCredits(12, 2)).toBe(240);
    expect(generatedFieldsCostCredits(3, 0)).toBe(30);
  });

  it('states the knowledge-base tiers', () => {
    expect(kbDocumentCostNote()).toBe(
      'Each document costs 1 credit up to 10 pages, 5 credits up to 50 pages and 15 credits beyond.'
    );
  });

  it('prints the amount the way the buttons say it', () => {
    expect(formatCredits(250)).toBe('250 credits');
    expect(formatCredits(1)).toBe('1 credit');
    expect(formatCredits(1200)).toBe('1,200 credits');
  });
});