import { analyticsConsent } from '../../src/routes/customers';
import { MARKETING_CONSENT_TEXT } from '../../src/utils';

/**
 * The rule this file exists for: agreeing to the *old* consent wording does not
 * authorise the Brevo tracker (#56).
 *
 * The sentence customers agree to was widened to mention analytics. Everyone
 * who consented before that agreed to a sentence about email and nothing else,
 * and `marketing_consent` alone cannot tell the two populations apart — which
 * is exactly why the wording is stored per customer. Getting this wrong would
 * silently track people who never agreed to it, and would do so invisibly,
 * because the flag they set really is `true`.
 */
describe('analyticsConsent', () => {
  const OLD_WORDING =
    'I want to receive occasional emails about new one-of-a-kind items from Redefined Designs. I can unsubscribe at any time.';

  it('is true for a customer who agreed to the current wording', () => {
    expect(
      analyticsConsent({ marketing_consent: true, marketing_consent_text: MARKETING_CONSENT_TEXT })
    ).toBe(true);
  });

  it('is false for a customer who agreed to the previous, email-only wording', () => {
    // The case the whole mechanism exists for. They consented, and their
    // consent does not cover this.
    expect(
      analyticsConsent({ marketing_consent: true, marketing_consent_text: OLD_WORDING })
    ).toBe(false);
  });

  it('is false when consent was never given, whatever text is stored', () => {
    expect(
      analyticsConsent({ marketing_consent: false, marketing_consent_text: MARKETING_CONSENT_TEXT })
    ).toBe(false);
  });

  it('is false when no wording was recorded at all', () => {
    // Withdrawal writes a sentinel rather than the consent text, and older rows
    // may predate the column being populated. Neither is agreement.
    expect(
      analyticsConsent({ marketing_consent: true, marketing_consent_text: null })
    ).toBe(false);
  });

  it('does not accept a near-miss, so a reworded sentence re-asks rather than assumes', () => {
    expect(
      analyticsConsent({
        marketing_consent: true,
        marketing_consent_text: `${MARKETING_CONSENT_TEXT} `
      })
    ).toBe(false);
  });

  it('guards the wording itself: the current text must mention what is shared', () => {
    // Not a tautology — it fails if someone narrows the sentence back to email
    // while leaving the tracker gated on it, which would put this project back
    // in the position #56 was filed to get it out of.
    expect(MARKETING_CONSENT_TEXT).toContain('browse');
    expect(MARKETING_CONSENT_TEXT).not.toBe(OLD_WORDING);
  });
});