// test/calculateAngles.browser.test.js
// Browser environment test for calculateAngles module

// Setup jsdom for browser-like environment
const { JSDOM } = require('jsdom');

// Create a DOM environment
const dom = new JSDOM('<!DOCTYPE html><html><body></body></html>', {
  pretendToBeVisual: true,
  resources: 'usable'
});

// Setup global browser environment
global.window = dom.window;
global.document = window.document;
global.HTMLElement = window.HTMLElement;
global.CustomEvent = window.CustomEvent;
global.navigator = {
  userAgent: 'node.js'
};

// Mock browser APIs
global.requestAnimationFrame = (callback) => setTimeout(callback, 16);
global.cancelAnimationFrame = (id) => clearTimeout(id);
global.fetch = jest.fn();
global.performance = {
  now: jest.fn()
};

// Mock localStorage
global.localStorage = {
  getItem: jest.fn(),
  setItem: jest.fn(),
  removeItem: jest.fn()
};

// Mock console for cleaner output
global.console = {
  log: jest.fn(),
  error: jest.fn(),
  warn: jest.fn()
};

describe('calculateAngles browser simulation', () => {
  let calculateAngles;
  
  beforeEach(() => {
    // Reset modules before each test
    jest.resetModules();
  });
  
  test('should import calculateAngles without errors', () => {
    expect(() => {
      calculateAngles = require('../public/calculateAngles');
    }).not.toThrow();
  });
  
  test('should be defined after import', () => {
    calculateAngles = require('../public/calculateAngles');
    expect(calculateAngles).toBeDefined();
  });
  
  test('should have expected functions', () => {
    calculateAngles = require('../public/calculateAngles');
    
    // Test that expected functions exist
    expect(typeof calculateAngles.calculate).toBe('function');
    expect(typeof calculateAngles.optimizeRobot).toBe('function');
  });
  
  // Test with sample data - this would be adapted based on actual data structures
  test('should handle sample data in browser environment', () => {
    calculateAngles = require('../public/calculateAngles');
    
    // Sample data structure - adjust based on actual implementation
    const sampleData = {
      markers: [
        { id: 'marker1', x: 100, y: 150, z: 200 },
        { id: 'marker2', x: 120, y: 170, z: 220 },
        { id: 'marker3', x: 140, y: 190, z: 240 }
      ],
      joints: [
        { name: 'shoulder', angle: 45 },
        { name: 'elbow', angle: 90 }
      ]
    };
    
    // Test that the module can process sample data
    expect(() => {
      // This would call the actual function with sample data
      // calculateAngles.calculateAngles(sampleData);
    }).not.toThrow();
  });
  
  test('should handle DOM operations correctly', () => {
    calculateAngles = require('../public/calculateAngles');
    
    // Test DOM operations in browser environment
    const element = document.createElement('div');
    expect(element).toBeDefined();
    expect(element.nodeType).toBe(1);
  });
});
