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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 | 1x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 1x 1x 1x | import type { NavigationMetrics } from '@web/hooks/use-navigation-performance';
/**
* Performance DevTools for debugging navigation metrics
* Access these in browser console via window.perfTools
*/
interface PerformanceReport {
totalNavigations: number;
averageLoadTime: string;
fastestNavigation: {
route: string;
time: string;
};
slowestNavigation: {
route: string;
time: string;
};
}
interface PerformanceDevTools {
getMetrics: () => NavigationMetrics[];
getReport: () => PerformanceReport | null;
clearMetrics: () => void;
showSlowRoutes: (threshold?: number) => void;
exportMetrics: () => string;
analyzeRoute: (route: string) => void;
}
export function setupPerformanceDevTools() {
if (typeof window === 'undefined') return;
const METRICS_KEY = 'agent-navigation-metrics';
const devTools: PerformanceDevTools = {
// Get all stored metrics
getMetrics: () => {
try {
const stored = localStorage.getItem(METRICS_KEY);
if (!stored || stored.trim() === '') {
return [];
}
return JSON.parse(stored);
} catch (error) {
console.error('Failed to get metrics:', error);
// Clear corrupted data
try {
localStorage.removeItem(METRICS_KEY);
} catch {
// Ignore cleanup errors
}
return [];
}
},
// Get performance report
getReport: (): PerformanceReport | null => {
const metrics = devTools.getMetrics();
const validMetrics = metrics.filter((m) => m.loadTime);
if (validMetrics.length === 0) {
console.log('No performance metrics available');
return null;
}
const totalLoadTime = validMetrics.reduce(
(sum: number, m) => sum + (m.loadTime || 0),
0,
);
const avgLoadTime = totalLoadTime / validMetrics.length;
const sorted = [...validMetrics].sort(
(a, b) => (a.loadTime || 0) - (b.loadTime || 0),
);
return {
totalNavigations: validMetrics.length,
averageLoadTime: `${avgLoadTime.toFixed(2)}ms`,
fastestNavigation: {
route: sorted[0]?.route || 'Unknown',
time: `${(sorted[0]?.loadTime || 0).toFixed(2)}ms`,
},
slowestNavigation: {
route: sorted[sorted.length - 1]?.route || 'Unknown',
time: `${(sorted[sorted.length - 1]?.loadTime || 0).toFixed(2)}ms`,
},
};
},
// Clear all metrics
clearMetrics: () => {
try {
localStorage.removeItem(METRICS_KEY);
console.log('ā
Performance metrics cleared');
} catch (error) {
console.error('Failed to clear metrics:', error);
}
},
// Show routes slower than threshold (default 500ms)
showSlowRoutes: (threshold = 500) => {
const metrics = devTools.getMetrics();
const slowRoutes = metrics.filter((m) => (m.loadTime || 0) > threshold);
if (slowRoutes.length === 0) {
console.log(`No routes slower than ${threshold}ms`);
return;
}
console.table(
slowRoutes.map((m) => ({
route: m.route,
loadTime: `${(m.loadTime || 0).toFixed(2)}ms`,
renderTime: m.renderTime ? `${m.renderTime.toFixed(2)}ms` : 'N/A',
timestamp: new Date(m.timestamp).toLocaleString(),
})),
);
},
// Export metrics as CSV
exportMetrics: () => {
const metrics = devTools.getMetrics();
if (metrics.length === 0) {
console.log('No metrics to export');
return '';
}
const csv = [
'Route,Load Time (ms),Render Time (ms),FCP (ms),LCP (ms),Timestamp',
...metrics.map(
(m) =>
`"${m.route}",${m.loadTime || ''},${m.renderTime || ''},${m.fcp || ''},${m.lcp || ''},${m.timestamp}`,
),
].join('\n');
// Create download link
const blob = new Blob([csv], { type: 'text/csv' });
const url = URL.createObjectURL(blob);
const a = document.createElement('a');
a.href = url;
a.download = `performance-metrics-${Date.now()}.csv`;
a.click();
URL.revokeObjectURL(url);
console.log('ā
Metrics exported to CSV');
return csv;
},
// Analyze specific route performance
analyzeRoute: (route: string) => {
const metrics = devTools.getMetrics();
const routeMetrics = metrics.filter((m) => m.route.includes(route));
if (routeMetrics.length === 0) {
console.log(`No metrics found for route: ${route}`);
return;
}
const loadTimes = routeMetrics
.map((m) => m.loadTime)
.filter((time): time is number => typeof time === 'number');
const avgLoadTime =
loadTimes.reduce((a: number, b: number) => a + b, 0) / loadTimes.length;
const minLoadTime = Math.min(...loadTimes);
const maxLoadTime = Math.max(...loadTimes);
console.log(`š Performance Analysis for: ${route}`);
console.log(` Navigations: ${routeMetrics.length}`);
console.log(` Average: ${avgLoadTime.toFixed(2)}ms`);
console.log(` Min: ${minLoadTime.toFixed(2)}ms`);
console.log(` Max: ${maxLoadTime.toFixed(2)}ms`);
console.log(` Variance: ${(maxLoadTime - minLoadTime).toFixed(2)}ms`);
// Show performance trend
console.log('\nš Recent Performance:');
console.table(
routeMetrics.slice(-5).map((m, i: number) => ({
'#': i + 1,
loadTime: m.loadTime ? `${m.loadTime.toFixed(2)}ms` : 'N/A',
renderTime: m.renderTime ? `${m.renderTime.toFixed(2)}ms` : 'N/A',
time: new Date(m.timestamp).toLocaleTimeString(),
})),
);
},
};
// Attach to window for console access
(window as Window & { perfTools?: PerformanceDevTools }).perfTools = devTools;
// Log availability
if (process.env.NODE_ENV === 'development') {
console.log(
'%cš Performance DevTools Ready',
'color: #4CAF50; font-weight: bold; font-size: 14px',
);
console.log('Available commands:');
console.log(
' window.perfTools.getReport() - View performance summary',
);
console.log(
' window.perfTools.showSlowRoutes() - Show slow routes (>500ms)',
);
console.log(
' window.perfTools.analyzeRoute(path) - Analyze specific route',
);
console.log(
' window.perfTools.exportMetrics() - Export metrics as CSV',
);
console.log(' window.perfTools.clearMetrics() - Clear all metrics');
}
}
// Auto-initialize in browser
if (typeof window !== 'undefined') {
setupPerformanceDevTools();
}
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