src/lib/utils/__tests__/affiliate-url-validator.test.ts

import { describe, it, expect } from 'vitest';
import {
  validateAmazonAffiliateUrl,
  validateEbayAffiliateUrl,
  validateEtsyAffiliateUrl,
  validateAffiliateUrl,
} from '../affiliate-url-validator';

describe('Affiliate URL Validator', () => {
  describe('validateAmazonAffiliateUrl', () => {
    it('should validate correct Amazon affiliate URL', () => {
      const url = 'https://www.amazon.com/dp/B08N5WRWNW?tag=vaultai-20';
      const result = validateAmazonAffiliateUrl(url);

      expect(result.isValid).toBe(true);
      expect(result.error).toBeUndefined();
    });

    it('should reject Amazon URL without tag parameter', () => {
      const url = 'https://www.amazon.com/dp/B08N5WRWNW';
      const result = validateAmazonAffiliateUrl(url);

      expect(result.isValid).toBe(false);
      expect(result.error).toBe('Missing affiliate tag parameter');
    });

    it('should reject Amazon URL with invalid tag format', () => {
      const url = 'https://www.amazon.com/dp/B08N5WRWNW?tag=invalid-tag';
      const result = validateAmazonAffiliateUrl(url);

      expect(result.isValid).toBe(false);
      expect(result.error).toBe('Invalid Amazon tag format (must end with -20)');
    });

    it('should reject non-Amazon URLs', () => {
      const url = 'https://www.ebay.com/itm/123456789';
      const result = validateAmazonAffiliateUrl(url);

      expect(result.isValid).toBe(false);
      expect(result.error).toBe('Not an Amazon URL');
    });

    it('should reject invalid URL format', () => {
      const url = 'not-a-url';
      const result = validateAmazonAffiliateUrl(url);

      expect(result.isValid).toBe(false);
      expect(result.error).toBe('Invalid URL format');
    });
  });

  describe('validateEbayAffiliateUrl', () => {
    it('should validate correct eBay affiliate URL', () => {
      const url =
        'https://rover.ebay.com/rover/1/711-53200-19255-0/1?mpre=https://www.ebay.com/itm/123456789&campid=5338123456';
      const result = validateEbayAffiliateUrl(url);

      expect(result.isValid).toBe(true);
      expect(result.error).toBeUndefined();
    });

    it('should reject eBay URL without campid parameter', () => {
      const url =
        'https://rover.ebay.com/rover/1/711-53200-19255-0/1?mpre=https://www.ebay.com/itm/123456789';
      const result = validateEbayAffiliateUrl(url);

      expect(result.isValid).toBe(false);
      expect(result.error).toBe('Missing campaign ID parameter');
    });

    it('should reject eBay URL with non-numeric campid', () => {
      const url =
        'https://rover.ebay.com/rover/1/711-53200-19255-0/1?mpre=https://www.ebay.com/itm/123456789&campid=invalid';
      const result = validateEbayAffiliateUrl(url);

      expect(result.isValid).toBe(false);
      expect(result.error).toBe('Invalid campaign ID format');
    });

    it('should reject non-eBay rover URLs', () => {
      const url = 'https://www.ebay.com/itm/123456789';
      const result = validateEbayAffiliateUrl(url);

      expect(result.isValid).toBe(false);
      expect(result.error).toBe('Not an eBay Partner Network URL');
    });

    it('should reject invalid URL format', () => {
      const url = 'not-a-url';
      const result = validateEbayAffiliateUrl(url);

      expect(result.isValid).toBe(false);
      expect(result.error).toBe('Invalid URL format');
    });
  });

  describe('validateEtsyAffiliateUrl', () => {
    it('should validate correct Etsy affiliate URL', () => {
      const url = 'https://www.etsy.com/listing/123456789?ref=vaultai_affiliate';
      const result = validateEtsyAffiliateUrl(url);

      expect(result.isValid).toBe(true);
      expect(result.error).toBeUndefined();
    });

    it('should reject Etsy URL without ref parameter', () => {
      const url = 'https://www.etsy.com/listing/123456789';
      const result = validateEtsyAffiliateUrl(url);

      expect(result.isValid).toBe(false);
      expect(result.error).toBe('Missing affiliate ref parameter');
    });

    it('should reject non-Etsy URLs', () => {
      const url = 'https://www.amazon.com/dp/B08N5WRWNW';
      const result = validateEtsyAffiliateUrl(url);

      expect(result.isValid).toBe(false);
      expect(result.error).toBe('Not an Etsy URL');
    });

    it('should reject invalid URL format', () => {
      const url = 'not-a-url';
      const result = validateEtsyAffiliateUrl(url);

      expect(result.isValid).toBe(false);
      expect(result.error).toBe('Invalid URL format');
    });
  });

  describe('validateAffiliateUrl', () => {
    it('should validate Amazon URLs correctly', () => {
      const url = 'https://www.amazon.com/dp/B08N5WRWNW?tag=vaultai-20';
      const result = validateAffiliateUrl(url, 'amazon');

      expect(result.isValid).toBe(true);
    });

    it('should validate eBay URLs correctly', () => {
      const url =
        'https://rover.ebay.com/rover/1/711-53200-19255-0/1?mpre=https://www.ebay.com/itm/123456789&campid=5338123456';
      const result = validateAffiliateUrl(url, 'ebay');

      expect(result.isValid).toBe(true);
    });

    it('should validate Etsy URLs correctly', () => {
      const url = 'https://www.etsy.com/listing/123456789?ref=vaultai_affiliate';
      const result = validateAffiliateUrl(url, 'etsy');

      expect(result.isValid).toBe(true);
    });

    it('should reject invalid marketplace type', () => {
      const url = 'https://www.amazon.com/dp/B08N5WRWNW?tag=vaultai-20';
      const result = validateAffiliateUrl(url, 'invalid' as unknown as 'amazon');

      expect(result.isValid).toBe(false);
      expect(result.error).toBe('Unknown marketplace type');
    });
  });
});