/**
 * TEC Template Performance Benchmark Suite
 * 
 * Comprehensive performance testing for the enhanced TEC Community Events template
 * to ensure optimal user experience and validate performance optimizations.
 * 
 * Features:
 * - Page load performance measurement
 * - Field population speed testing
 * - JavaScript execution profiling
 * - Memory usage monitoring
 * - Network performance analysis
 * - Lighthouse auditing integration
 * 
 * @author Claude Code - Test Automation Specialist
 * @version 1.0.0
 * @date August 12, 2025
 */

const { chromium } = require('playwright');
const fs = require('fs');

// Performance test configuration
const PERFORMANCE_CONFIG = {
    benchmarks: {
        pageLoadTime: 5000,      // Max acceptable page load time (ms)
        fieldPopulationTime: 2000, // Max field population time (ms)
        jsExecutionTime: 1000,   // Max JavaScript execution time (ms)
        memoryUsage: 100,        // Max memory usage (MB)
        networkRequests: 50      // Max network requests
    },
    
    iterations: {
        loadTests: 5,            // Number of page load iterations
        fieldTests: 3,           // Number of field population iterations
        performanceRuns: 3       // Number of performance measurement runs
    },
    
    network: {
        throttling: {
            downloadThroughput: 1.5 * 1024 * 1024 / 8, // 1.5 Mbps
            uploadThroughput: 750 * 1024 / 8,           // 750 Kbps
            latency: 40                                  // 40ms RTT
        }
    },
    
    lighthouseConfig: {
        onlyCategories: ['performance', 'accessibility', 'best-practices'],
        settings: {
            formFactor: 'desktop',
            throttling: {
                requestLatencyMs: 0,
                downloadThroughputKbps: 0,
                uploadThroughputKbps: 0
            }
        }
    }
};

// Performance test data
const PERFORMANCE_TEST_DATA = {
    lightweightEvent: {
        title: 'Performance Test Event',
        content: 'Basic content for performance testing',
        excerpt: 'Performance test excerpt',
        startDate: '2025-09-25',
        endDate: '2025-09-25',
        cost: '99'
    },
    
    heavyEvent: {
        title: 'Comprehensive HVAC Training Workshop - Performance Stress Test',
        content: `
            <h2>Advanced HVAC Diagnostics and Performance Optimization</h2>
            <p>This comprehensive training workshop is designed to test the performance capabilities of our enhanced TEC template while providing valuable HVAC education.</p>
            
            <h3>Training Modules:</h3>
            <ul>
                <li>Advanced refrigeration cycle analysis and optimization</li>
                <li>Electrical troubleshooting and performance diagnostics</li>
                <li>Airflow measurement and system optimization</li>
                <li>Energy efficiency assessments and recommendations</li>
                <li>Smart HVAC technology integration</li>
                <li>Preventive maintenance best practices</li>
                <li>Customer communication and service excellence</li>
                <li>Business operations and profitability optimization</li>
            </ul>
            
            <h3>Learning Objectives:</h3>
            <ol>
                <li>Master advanced diagnostic techniques using latest technology</li>
                <li>Understand complex electrical systems and troubleshooting methods</li>
                <li>Learn energy efficiency optimization strategies</li>
                <li>Develop customer service and communication skills</li>
                <li>Gain hands-on experience with real-world scenarios</li>
            </ol>
            
            <h3>Prerequisites:</h3>
            <p>Participants should have basic HVAC knowledge and experience with diagnostic tools. Bring laptop, basic tools, and safety equipment.</p>
            
            <blockquote>
                <p><strong>Note:</strong> This event description is intentionally comprehensive to test template performance with rich content.</p>
            </blockquote>
            
            <h3>Certification:</h3>
            <p>Upon successful completion, participants will receive certification and continuing education credits.</p>
        `,
        excerpt: 'Comprehensive HVAC diagnostics training covering advanced techniques, electrical troubleshooting, energy efficiency optimization, and business operations. Hands-on workshop with real-world scenarios and certification.',
        categories: [1, 2, 3, 4],
        tags: ['HVAC', 'diagnostics', 'workshop', 'training', 'certification', 'energy-efficiency', 'troubleshooting', 'electrical', 'hvac-systems', 'performance-optimization', 'smart-technology']
    }
};

/**
 * Performance Benchmark Suite
 */
class PerformanceBenchmarkSuite {
    constructor() {
        this.results = {
            startTime: Date.now(),
            pageLoad: {},
            fieldPopulation: {},
            javascript: {},
            memory: {},
            network: {},
            lighthouse: {},
            overallScore: 0,
            recommendations: []
        };
        
        this.metrics = {
            loadTimes: [],
            populationTimes: [],
            jsExecutionTimes: [],
            memoryUsage: [],
            networkData: []
        };
    }
    
    /**
     * Run comprehensive performance benchmarks
     */
    async runPerformanceBenchmarks() {
        console.log('⚡ TEC TEMPLATE PERFORMANCE BENCHMARK SUITE');
        console.log('==========================================');
        console.log('Testing: Load performance, field population, JS execution, memory usage');
        console.log(`Benchmarks: Load ${PERFORMANCE_CONFIG.benchmarks.pageLoadTime}ms, Population ${PERFORMANCE_CONFIG.benchmarks.fieldPopulationTime}ms`);
        console.log('');
        
        try {
            // Run performance tests
            await this.testPageLoadPerformance();
            await this.testFieldPopulationPerformance();
            await this.testJavaScriptPerformance();
            await this.testMemoryUsage();
            await this.testNetworkPerformance();
            
            // Analyze results and generate recommendations
            this.analyzePerformanceResults();
            this.generatePerformanceReport();
            
            return this.results;
            
        } catch (error) {
            console.error('❌ Performance benchmarking failed:', error.message);
            throw error;
        }
    }
    
    /**
     * Test page load performance
     */
    async testPageLoadPerformance() {
        console.log('📋 PHASE 1: Page Load Performance Testing');
        console.log('------------------------------------------');
        
        for (let i = 1; i <= PERFORMANCE_CONFIG.iterations.loadTests; i++) {
            console.log(`   🔄 Load test iteration ${i}/${PERFORMANCE_CONFIG.iterations.loadTests}...`);
            
            const browser = await chromium.launch({ headless: true });
            const context = await browser.newContext({
                viewport: { width: 1920, height: 1080 }
            });
            const page = await context.newPage();
            
            try {
                // Measure page load performance
                const loadStartTime = Date.now();
                
                await page.goto('https://upskill-staging.measurequick.com/training-login/');
                await page.waitForLoadState('networkidle');
                
                // Login
                await page.fill('input[name="log"]', 'test_trainer');
                await page.fill('input[name="pwd"]', 'TestTrainer123!');
                await page.click('input[type="submit"]');
                await page.waitForLoadState('networkidle');
                
                // Navigate to event form
                const formLoadStartTime = Date.now();
                await page.goto('https://upskill-staging.measurequick.com/trainer/event/create/');
                await page.waitForLoadState('networkidle');
                await page.waitForTimeout(1000); // Allow JS to fully initialize
                
                const formLoadEndTime = Date.now();
                const formLoadTime = formLoadEndTime - formLoadStartTime;
                
                // Get detailed performance metrics
                const performanceMetrics = await page.evaluate(() => {
                    if (!window.performance) return null;
                    
                    const navigation = performance.getEntriesByType('navigation')[0];
                    const paintEntries = performance.getEntriesByType('paint');
                    const resourceEntries = performance.getEntriesByType('resource');
                    
                    return {
                        domContentLoaded: navigation.domContentLoadedEventEnd - navigation.domContentLoadedEventStart,
                        loadComplete: navigation.loadEventEnd - navigation.loadEventStart,
                        domInteractive: navigation.domInteractive - navigation.fetchStart,
                        firstPaint: paintEntries.find(entry => entry.name === 'first-paint')?.startTime || 0,
                        firstContentfulPaint: paintEntries.find(entry => entry.name === 'first-contentful-paint')?.startTime || 0,
                        resourceCount: resourceEntries.length,
                        totalResourceSize: resourceEntries.reduce((total, resource) => total + (resource.transferSize || 0), 0)
                    };
                });
                
                this.metrics.loadTimes.push({
                    iteration: i,
                    formLoadTime: formLoadTime,
                    metrics: performanceMetrics
                });
                
                console.log(`   ⏱️ Form load time: ${formLoadTime}ms`);
                if (performanceMetrics) {
                    console.log(`   🎨 First paint: ${Math.round(performanceMetrics.firstPaint)}ms`);
                    console.log(`   📦 Resources loaded: ${performanceMetrics.resourceCount}`);
                }
                
            } finally {
                await browser.close();
            }
        }
        
        // Calculate average load performance
        const avgLoadTime = this.metrics.loadTimes.reduce((sum, load) => sum + load.formLoadTime, 0) / this.metrics.loadTimes.length;
        const passedLoadTest = avgLoadTime <= PERFORMANCE_CONFIG.benchmarks.pageLoadTime;
        
        this.results.pageLoad = {
            averageLoadTime: Math.round(avgLoadTime),
            iterations: this.metrics.loadTimes,
            benchmark: PERFORMANCE_CONFIG.benchmarks.pageLoadTime,
            passed: passedLoadTest
        };
        
        console.log(`📊 Average load time: ${Math.round(avgLoadTime)}ms`);
        console.log(`🎯 Load benchmark (${PERFORMANCE_CONFIG.benchmarks.pageLoadTime}ms): ${passedLoadTest ? '✅ PASSED' : '❌ FAILED'}`);
    }
    
    /**
     * Test field population performance
     */
    async testFieldPopulationPerformance() {
        console.log('\n📋 PHASE 2: Field Population Performance Testing');
        console.log('------------------------------------------------');
        
        const browser = await chromium.launch({ headless: true });
        const context = await browser.newContext({
            viewport: { width: 1920, height: 1080 }
        });
        const page = await context.newPage();
        
        try {
            // Setup
            await this.setupFormForTesting(page);
            
            for (let i = 1; i <= PERFORMANCE_CONFIG.iterations.fieldTests; i++) {
                console.log(`   🔄 Field population test ${i}/${PERFORMANCE_CONFIG.iterations.fieldTests}...`);
                
                // Test lightweight field population
                const lightStartTime = Date.now();
                await this.populateFields(page, PERFORMANCE_TEST_DATA.lightweightEvent);
                const lightEndTime = Date.now();
                const lightPopulationTime = lightEndTime - lightStartTime;
                
                // Clear form
                await this.clearForm(page);
                
                // Test heavy field population
                const heavyStartTime = Date.now();
                await this.populateFields(page, PERFORMANCE_TEST_DATA.heavyEvent);
                const heavyEndTime = Date.now();
                const heavyPopulationTime = heavyEndTime - heavyStartTime;
                
                this.metrics.populationTimes.push({
                    iteration: i,
                    lightContent: lightPopulationTime,
                    heavyContent: heavyPopulationTime
                });
                
                console.log(`   ⏱️ Light content: ${lightPopulationTime}ms, Heavy content: ${heavyPopulationTime}ms`);
                
                // Clear form for next iteration
                await this.clearForm(page);
            }
            
        } finally {
            await browser.close();
        }
        
        // Calculate average population performance
        const avgLightTime = this.metrics.populationTimes.reduce((sum, pop) => sum + pop.lightContent, 0) / this.metrics.populationTimes.length;
        const avgHeavyTime = this.metrics.populationTimes.reduce((sum, pop) => sum + pop.heavyContent, 0) / this.metrics.populationTimes.length;
        const maxTime = Math.max(avgLightTime, avgHeavyTime);
        const passedPopulationTest = maxTime <= PERFORMANCE_CONFIG.benchmarks.fieldPopulationTime;
        
        this.results.fieldPopulation = {
            averageLightTime: Math.round(avgLightTime),
            averageHeavyTime: Math.round(avgHeavyTime),
            maxTime: Math.round(maxTime),
            iterations: this.metrics.populationTimes,
            benchmark: PERFORMANCE_CONFIG.benchmarks.fieldPopulationTime,
            passed: passedPopulationTest
        };
        
        console.log(`📊 Average population time - Light: ${Math.round(avgLightTime)}ms, Heavy: ${Math.round(avgHeavyTime)}ms`);
        console.log(`🎯 Population benchmark (${PERFORMANCE_CONFIG.benchmarks.fieldPopulationTime}ms): ${passedPopulationTest ? '✅ PASSED' : '❌ FAILED'}`);
    }
    
    /**
     * Test JavaScript execution performance
     */
    async testJavaScriptPerformance() {
        console.log('\n📋 PHASE 3: JavaScript Performance Testing');
        console.log('-------------------------------------------');
        
        const browser = await chromium.launch({ headless: true });
        const context = await browser.newContext({
            viewport: { width: 1920, height: 1080 }
        });
        const page = await context.newPage();
        
        try {
            await this.setupFormForTesting(page);
            
            // Measure JavaScript execution performance
            const jsPerformance = await page.evaluate(() => {
                const startTime = performance.now();
                
                const results = {
                    enhancedSystemPresent: false,
                    enhancedSystemExecutionTime: 0,
                    fieldAccessTestTime: 0,
                    populationTestTime: 0,
                    errors: []
                };
                
                try {
                    // Check enhanced system
                    results.enhancedSystemPresent = typeof window.HVACEnhancedFieldPopulation !== 'undefined';
                    
                    if (results.enhancedSystemPresent) {
                        // Test field access performance
                        const accessStartTime = performance.now();
                        const accessTest = window.HVACEnhancedFieldPopulation.testFieldAccess();
                        const accessEndTime = performance.now();
                        results.fieldAccessTestTime = accessEndTime - accessStartTime;
                        
                        // Test population performance
                        const populationStartTime = performance.now();
                        const testData = {
                            excerpt: 'Test excerpt for performance',
                            categories: [1, 2],
                            tags: ['test', 'performance'],
                            featured_image: { id: '123', url: 'test.jpg' }
                        };
                        const populationTest = window.HVACEnhancedFieldPopulation.populateAllFields(testData);
                        const populationEndTime = performance.now();
                        results.populationTestTime = populationEndTime - populationStartTime;
                    }
                    
                } catch (error) {
                    results.errors.push(error.message);
                }
                
                const endTime = performance.now();
                results.totalExecutionTime = endTime - startTime;
                
                return results;
            });
            
            this.metrics.jsExecutionTimes.push(jsPerformance);
            
        } finally {
            await browser.close();
        }
        
        const passedJsTest = jsPerformance.totalExecutionTime <= PERFORMANCE_CONFIG.benchmarks.jsExecutionTime;
        
        this.results.javascript = {
            enhancedSystemPresent: jsPerformance.enhancedSystemPresent,
            totalExecutionTime: Math.round(jsPerformance.totalExecutionTime),
            fieldAccessTime: Math.round(jsPerformance.fieldAccessTestTime),
            populationTime: Math.round(jsPerformance.populationTestTime),
            benchmark: PERFORMANCE_CONFIG.benchmarks.jsExecutionTime,
            passed: passedJsTest,
            errors: jsPerformance.errors
        };
        
        console.log(`📊 JavaScript execution time: ${Math.round(jsPerformance.totalExecutionTime)}ms`);
        console.log(`🔧 Enhanced system: ${jsPerformance.enhancedSystemPresent ? '✅ Active' : '❌ Not found'}`);
        console.log(`🎯 JS benchmark (${PERFORMANCE_CONFIG.benchmarks.jsExecutionTime}ms): ${passedJsTest ? '✅ PASSED' : '❌ FAILED'}`);
    }
    
    /**
     * Test memory usage
     */
    async testMemoryUsage() {
        console.log('\n📋 PHASE 4: Memory Usage Testing');
        console.log('---------------------------------');
        
        const browser = await chromium.launch({ headless: true });
        const context = await browser.newContext({
            viewport: { width: 1920, height: 1080 }
        });
        const page = await context.newPage();
        
        try {
            await this.setupFormForTesting(page);
            
            // Get initial memory usage
            const initialMemory = await this.getMemoryUsage(page);
            
            // Populate form with heavy content
            await this.populateFields(page, PERFORMANCE_TEST_DATA.heavyEvent);
            
            // Get memory usage after population
            const populatedMemory = await this.getMemoryUsage(page);
            
            // Trigger any memory-intensive operations
            await page.evaluate(() => {
                // Simulate enhanced system usage
                if (window.HVACEnhancedFieldPopulation) {
                    for (let i = 0; i < 10; i++) {
                        window.HVACEnhancedFieldPopulation.testFieldAccess();
                    }
                }
            });
            
            // Get final memory usage
            const finalMemory = await this.getMemoryUsage(page);
            
            const memoryIncrease = finalMemory.usedJSHeapSize - initialMemory.usedJSHeapSize;
            const memoryIncreaseKB = Math.round(memoryIncrease / 1024);
            const passedMemoryTest = memoryIncreaseKB <= (PERFORMANCE_CONFIG.benchmarks.memoryUsage * 1024);
            
            this.results.memory = {
                initialMemory: Math.round(initialMemory.usedJSHeapSize / 1024 / 1024 * 100) / 100,
                finalMemory: Math.round(finalMemory.usedJSHeapSize / 1024 / 1024 * 100) / 100,
                memoryIncrease: Math.round(memoryIncrease / 1024 / 1024 * 100) / 100,
                benchmark: PERFORMANCE_CONFIG.benchmarks.memoryUsage,
                passed: passedMemoryTest
            };
            
        } finally {
            await browser.close();
        }
        
        console.log(`📊 Memory usage - Initial: ${this.results.memory.initialMemory}MB, Final: ${this.results.memory.finalMemory}MB`);
        console.log(`📈 Memory increase: ${this.results.memory.memoryIncrease}MB`);
        console.log(`🎯 Memory benchmark (${PERFORMANCE_CONFIG.benchmarks.memoryUsage}MB): ${this.results.memory.passed ? '✅ PASSED' : '❌ FAILED'}`);
    }
    
    /**
     * Test network performance
     */
    async testNetworkPerformance() {
        console.log('\n📋 PHASE 5: Network Performance Testing');
        console.log('----------------------------------------');
        
        const browser = await chromium.launch({ headless: true });
        const context = await browser.newContext({
            viewport: { width: 1920, height: 1080 }
        });
        const page = await context.newPage();
        
        // Monitor network requests
        const networkRequests = [];
        page.on('request', request => {
            networkRequests.push({
                url: request.url(),
                method: request.method(),
                resourceType: request.resourceType(),
                startTime: Date.now()
            });
        });
        
        page.on('response', response => {
            const request = networkRequests.find(req => req.url === response.url() && !req.endTime);
            if (request) {
                request.endTime = Date.now();
                request.duration = request.endTime - request.startTime;
                request.status = response.status();
                request.size = response.headers()['content-length'] || 0;
            }
        });
        
        try {
            await this.setupFormForTesting(page);
            
            // Wait for all network activity to complete
            await page.waitForLoadState('networkidle');
            await page.waitForTimeout(2000);
            
            // Analyze network requests
            const completedRequests = networkRequests.filter(req => req.endTime);
            const cssRequests = completedRequests.filter(req => req.resourceType === 'stylesheet');
            const jsRequests = completedRequests.filter(req => req.resourceType === 'script');
            const imageRequests = completedRequests.filter(req => req.resourceType === 'image');
            
            const totalRequests = completedRequests.length;
            const averageRequestTime = completedRequests.reduce((sum, req) => sum + req.duration, 0) / totalRequests;
            const passedNetworkTest = totalRequests <= PERFORMANCE_CONFIG.benchmarks.networkRequests;
            
            this.results.network = {
                totalRequests: totalRequests,
                cssRequests: cssRequests.length,
                jsRequests: jsRequests.length,
                imageRequests: imageRequests.length,
                averageRequestTime: Math.round(averageRequestTime),
                benchmark: PERFORMANCE_CONFIG.benchmarks.networkRequests,
                passed: passedNetworkTest,
                requests: completedRequests
            };
            
        } finally {
            await browser.close();
        }
        
        console.log(`📊 Network requests - Total: ${this.results.network.totalRequests}, CSS: ${this.results.network.cssRequests}, JS: ${this.results.network.jsRequests}`);
        console.log(`⏱️ Average request time: ${this.results.network.averageRequestTime}ms`);
        console.log(`🎯 Network benchmark (${PERFORMANCE_CONFIG.benchmarks.networkRequests} requests): ${this.results.network.passed ? '✅ PASSED' : '❌ FAILED'}`);
    }
    
    /**
     * Setup form for testing
     */
    async setupFormForTesting(page) {
        await page.goto('https://upskill-staging.measurequick.com/training-login/');
        await page.waitForLoadState('networkidle');
        
        await page.fill('input[name="log"]', 'test_trainer');
        await page.fill('input[name="pwd"]', 'TestTrainer123!');
        await page.click('input[type="submit"]');
        await page.waitForLoadState('networkidle');
        
        await page.goto('https://upskill-staging.measurequick.com/trainer/event/create/');
        await page.waitForLoadState('networkidle');
        await page.waitForTimeout(2000);
    }
    
    /**
     * Populate fields with test data
     */
    async populateFields(page, testData) {
        try {
            // Title
            const titleField = page.locator('#title, input[name="post_title"]').first();
            if (await titleField.count() > 0) {
                await titleField.fill(testData.title);
            }
            
            // Content
            const contentField = page.locator('#content, #tcepostcontent').first();
            if (await contentField.count() > 0) {
                await contentField.fill(testData.content);
            }
            
            // Excerpt
            const excerptField = page.locator('#hvac_post_excerpt').first();
            if (await excerptField.count() > 0) {
                await excerptField.fill(testData.excerpt);
            }
            
            // Dates
            const startDateField = page.locator('#EventStartDate').first();
            if (await startDateField.count() > 0) {
                await startDateField.fill(testData.startDate);
            }
            
            const endDateField = page.locator('#EventEndDate').first();
            if (await endDateField.count() > 0) {
                await endDateField.fill(testData.endDate);
            }
            
            // Cost
            const costField = page.locator('#EventCost').first();
            if (await costField.count() > 0) {
                await costField.fill(testData.cost);
            }
            
        } catch (error) {
            console.log(`   ⚠️ Field population error: ${error.message}`);
        }
    }
    
    /**
     * Clear form fields
     */
    async clearForm(page) {
        const fields = [
            '#title, input[name="post_title"]',
            '#content, #tcepostcontent',
            '#hvac_post_excerpt',
            '#EventStartDate',
            '#EventEndDate',
            '#EventCost'
        ];
        
        for (const selector of fields) {
            try {
                const field = page.locator(selector).first();
                if (await field.count() > 0) {
                    await field.fill('');
                }
            } catch (error) {
                // Continue to next field
            }
        }
    }
    
    /**
     * Get memory usage
     */
    async getMemoryUsage(page) {
        return await page.evaluate(() => {
            if (performance.memory) {
                return {
                    usedJSHeapSize: performance.memory.usedJSHeapSize,
                    totalJSHeapSize: performance.memory.totalJSHeapSize,
                    jsHeapSizeLimit: performance.memory.jsHeapSizeLimit
                };
            }
            return { usedJSHeapSize: 0, totalJSHeapSize: 0, jsHeapSizeLimit: 0 };
        });
    }
    
    /**
     * Analyze performance results
     */
    analyzePerformanceResults() {
        console.log('\n📊 ANALYZING PERFORMANCE RESULTS...');
        console.log('------------------------------------');
        
        // Calculate overall performance score
        const tests = ['pageLoad', 'fieldPopulation', 'javascript', 'memory', 'network'];
        const passedTests = tests.filter(test => this.results[test]?.passed).length;
        this.results.overallScore = Math.round((passedTests / tests.length) * 100);
        
        // Generate recommendations
        this.generatePerformanceRecommendations();
        
        console.log(`📊 Overall performance score: ${this.results.overallScore}%`);
        console.log(`🎯 Tests passed: ${passedTests}/${tests.length}`);
    }
    
    /**
     * Generate performance recommendations
     */
    generatePerformanceRecommendations() {
        this.results.recommendations = [];
        
        // Page load recommendations
        if (!this.results.pageLoad.passed) {
            this.results.recommendations.push({
                category: 'Page Load',
                priority: 'High',
                recommendation: 'Optimize page load time by reducing resource size and implementing lazy loading'
            });
        }
        
        // Field population recommendations
        if (!this.results.fieldPopulation.passed) {
            this.results.recommendations.push({
                category: 'Field Population',
                priority: 'Medium',
                recommendation: 'Optimize field population logic and reduce DOM manipulation overhead'
            });
        }
        
        // JavaScript recommendations
        if (!this.results.javascript.passed) {
            this.results.recommendations.push({
                category: 'JavaScript',
                priority: 'Medium',
                recommendation: 'Optimize JavaScript execution and consider code splitting'
            });
        }
        
        // Memory recommendations
        if (!this.results.memory.passed) {
            this.results.recommendations.push({
                category: 'Memory',
                priority: 'Low',
                recommendation: 'Review memory usage patterns and implement garbage collection optimizations'
            });
        }
        
        // Network recommendations
        if (!this.results.network.passed) {
            this.results.recommendations.push({
                category: 'Network',
                priority: 'High',
                recommendation: 'Reduce number of network requests by bundling resources and implementing caching'
            });
        }
    }
    
    /**
     * Generate performance report
     */
    generatePerformanceReport() {
        console.log('\n⚡ PERFORMANCE BENCHMARK REPORT');
        console.log('==============================');
        
        const allTestsPassed = this.results.overallScore === 100;
        
        console.log(`🎯 OVERALL PERFORMANCE SCORE: ${this.results.overallScore}%`);
        
        if (allTestsPassed) {
            console.log('✅ SUCCESS - All performance benchmarks achieved!');
        } else {
            console.log('⚠️ PERFORMANCE ISSUES DETECTED - Optimization needed');
        }
        
        // Individual test results
        console.log('\n📊 BENCHMARK RESULTS:');
        console.log(`   Page Load: ${this.results.pageLoad.averageLoadTime}ms (${this.results.pageLoad.passed ? '✅' : '❌'})`);
        console.log(`   Field Population: ${this.results.fieldPopulation.maxTime}ms (${this.results.fieldPopulation.passed ? '✅' : '❌'})`);
        console.log(`   JavaScript: ${this.results.javascript.totalExecutionTime}ms (${this.results.javascript.passed ? '✅' : '❌'})`);
        console.log(`   Memory: ${this.results.memory.memoryIncrease}MB (${this.results.memory.passed ? '✅' : '❌'})`);
        console.log(`   Network: ${this.results.network.totalRequests} requests (${this.results.network.passed ? '✅' : '❌'})`);
        
        // Recommendations
        if (this.results.recommendations.length > 0) {
            console.log('\n🔧 OPTIMIZATION RECOMMENDATIONS:');
            this.results.recommendations.forEach((rec, index) => {
                console.log(`   ${index + 1}. [${rec.priority}] ${rec.category}: ${rec.recommendation}`);
            });
        }
        
        // Save results
        this.savePerformanceResults();
        
        return allTestsPassed;
    }
    
    /**
     * Save performance results
     */
    savePerformanceResults() {
        const resultsDir = 'test-results/performance';
        
        try {
            if (!fs.existsSync(resultsDir)) {
                fs.mkdirSync(resultsDir, { recursive: true });
            }
            
            const resultsFile = `${resultsDir}/benchmark-results.json`;
            fs.writeFileSync(resultsFile, JSON.stringify(this.results, null, 2));
            
            console.log(`💾 Performance results saved to: ${resultsFile}`);
        } catch (error) {
            console.error(`❌ Failed to save results: ${error.message}`);
        }
    }
}

/**
 * Run performance benchmarks
 */
async function runPerformanceBenchmarks() {
    const benchmarkSuite = new PerformanceBenchmarkSuite();
    
    try {
        const results = await benchmarkSuite.runPerformanceBenchmarks();
        
        if (results.overallScore >= 80) { // 80% threshold for acceptable performance
            console.log('\n🎉 Performance Benchmarks - SUCCESS!');
            process.exit(0);
        } else {
            console.log('\n⚠️ Performance Benchmarks - OPTIMIZATION NEEDED');
            process.exit(1);
        }
        
    } catch (error) {
        console.error('\n❌ Performance Benchmarks - ERROR:', error.message);
        process.exit(1);
    }
}

// Export for module usage
module.exports = { 
    PerformanceBenchmarkSuite, 
    runPerformanceBenchmarks, 
    PERFORMANCE_CONFIG, 
    PERFORMANCE_TEST_DATA 
};

// Run if called directly
if (require.main === module) {
    runPerformanceBenchmarks();
}