import { TEMPLATES, missingPlaceholders, renderTemplate } from '../../src/emailTemplates';

/**
 * The template that carries an upload link (#260).
 *
 * The one failure worth making impossible is a link email with no link in it:
 * it sends, it looks fine in the log, and it is useless to the person who gets
 * it. That is the same guard `verification` has on `verifyUrl`.
 */
describe('the upload link template', () => {
  it('is offered in the admin like the others', () => {
    expect(TEMPLATES.uploadLink.label).toBeTruthy();
  });

  it('requires the submit link', () => {
    expect(TEMPLATES.uploadLink.required).toContain('submitUrl');
  });

  it('refuses a body that has no link in it', () => {
    expect(missingPlaceholders('uploadLink', 'Hello, a link is on its way.')).toEqual(['submitUrl']);
  });

  it('accepts a body that has one', () => {
    expect(missingPlaceholders('uploadLink', 'Send your items: {{submitUrl}}')).toEqual([]);
  });

  it('offers the label and the allowance as placeholders', () => {
    expect(TEMPLATES.uploadLink.available).toEqual(
      expect.arrayContaining(['submitUrl', 'label', 'submissionsAllowed'])
    );
  });

  // The default body has to satisfy the guard it declares, or the feature ships
  // unable to send its own default.
  it('has a default body that satisfies its own requirement', () => {
    expect(missingPlaceholders('uploadLink', TEMPLATES.uploadLink.defaultBody)).toEqual([]);
  });

  it('renders the link into the body', () => {
    const rendered = renderTemplate(
      'uploadLink',
      { subject: 'Send us your items', body: 'Here: {{submitUrl}}' },
      { submitUrl: 'https://example.com/submit/abc', label: 'Sarah', submissionsAllowed: '25 items' }
    );

    expect(rendered.html).toContain('https://example.com/submit/abc');
  });
});