import { describe, it, expect } from 'vitest';
import {
  getEnvInfo,
  getContexts,
  getContextId,
  getPageUrl,
  getReferrer,
  sanitizeUrl,
  shouldIgnoreUrl,
} from '../src/utils/env';

describe('env utils', () => {
  describe('getEnvInfo', () => {
    it('should return env info object', () => {
      const env = getEnvInfo();
      expect(env).toBeDefined();
      expect(env).toHaveProperty('browser');
      expect(env).toHaveProperty('os');
      expect(env).toHaveProperty('device');
    });

    it('should have valid browser info', () => {
      const env = getEnvInfo();
      expect(env.browser.name).toBeDefined();
      expect(env.browser.version).toBeDefined();
      expect(env.browser.major).toBeDefined();
    });

    it('should have valid os info', () => {
      const env = getEnvInfo();
      expect(env.os.name).toBeDefined();
      expect(env.os.version).toBeDefined();
    });

    it('should have valid device info', () => {
      const env = getEnvInfo();
      expect(['desktop', 'mobile', 'tablet']).toContain(env.device.type);
    });
  });

  describe('getContexts', () => {
    it('should return contexts with encoded values', () => {
      const contexts = getContexts();
      expect(contexts).toBeDefined();
      expect(contexts.browser).toBeDefined();
      expect(contexts.os).toBeDefined();
      expect(contexts.device).toBeDefined();
    });

    it('should use short codes for browser', () => {
      const contexts = getContexts();
      expect(contexts.browser.name.length).toBeLessThanOrEqual(10);
    });

    it('should use short codes for os', () => {
      const contexts = getContexts();
      expect(contexts.os.name.length).toBeLessThanOrEqual(10);
    });
  });

  describe('getContextId', () => {
    it('should return a 16 character string', () => {
      const contextId = getContextId();
      expect(contextId).toBeDefined();
      expect(contextId.length).toBe(16);
      expect(contextId).toMatch(/^[a-f0-9]+$/i);
    });

    it('should return consistent id for same environment', () => {
      const id1 = getContextId();
      const id2 = getContextId();
      expect(id1).toBe(id2);
    });
  });

  describe('getPageUrl', () => {
    it('should return current page URL or empty string', () => {
      const url = getPageUrl();
      expect(typeof url).toBe('string');
    });
  });

  describe('getReferrer', () => {
    it('should return referrer or empty string', () => {
      const referrer = getReferrer();
      expect(typeof referrer).toBe('string');
    });
  });

  describe('sanitizeUrl', () => {
    it('should filter sensitive parameters', () => {
      const url = 'https://example.com/api?user=123&password=secret&token=abc';
      const sanitized = sanitizeUrl(url);
      expect(sanitized).toContain('password');
      expect(sanitized).toContain('token');
      // URL encoded [Filtered] = %5BFiltered%5D
      expect(sanitized).toContain('%5BFiltered%5D');
    });

    it('should handle URLs without sensitive params', () => {
      const url = 'https://example.com/api?page=1&limit=10';
      const sanitized = sanitizeUrl(url);
      expect(sanitized).toBe(url);
    });

    it('should handle invalid URLs', () => {
      const sanitized = sanitizeUrl('not-a-url');
      expect(sanitized).toBe('not-a-url');
    });

    it('should filter api_key parameter', () => {
      const url = 'https://api.com/endpoint?api_key=secret123';
      const sanitized = sanitizeUrl(url);
      expect(sanitized).toContain('api_key');
      expect(sanitized).toContain('%5BFiltered%5D');
    });

    it('should filter authorization headers in URL', () => {
      const url = 'https://example.com/api?code=auth123';
      const sanitized = sanitizeUrl(url);
      expect(sanitized).toContain('code');
      expect(sanitized).toContain('%5BFiltered%5D');
    });
  });

  describe('shouldIgnoreUrl', () => {
    it('should return false for empty patterns', () => {
      const result = shouldIgnoreUrl('https://example.com/api', []);
      expect(result).toBe(false);
    });

    it('should match string pattern', () => {
      const result = shouldIgnoreUrl('https://example.com/api/health', ['/health']);
      expect(result).toBe(true);
    });

    it('should not match non-matching pattern', () => {
      const result = shouldIgnoreUrl('https://example.com/api/users', ['/health']);
      expect(result).toBe(false);
    });

    it('should match wildcard pattern', () => {
      const result = shouldIgnoreUrl('https://example.com/api/v1/users', ['/api/v1/*']);
      expect(result).toBe(true);
    });

    it('should not match wildcard when no wildcard in URL', () => {
      const result = shouldIgnoreUrl('https://example.com/api/v2/users', ['/api/v1/*']);
      expect(result).toBe(false);
    });

    it('should match regex pattern', () => {
      const result = shouldIgnoreUrl('https://example.com/api/users/123', [/api\/users\/\d+/]);
      expect(result).toBe(true);
    });
  });
});