@vocento/wpo-check/lib/reporter.js

An internal CLI tool to measure and validate Web Performance KPIs during development and CI/CD workflows.

import chalk from 'chalk';
import fs from 'node:fs';
import path from 'node:path';

export function reportPartialResults(url, metrics, thresholds, reportPath) {
  const filePath = path.join(process.cwd(), reportPath);
  let hasCriticalFailure = false;

  try {
    fs.accessSync(filePath);
  } catch (_error) {
    fs.mkdirSync(path.dirname(filePath), { recursive: true });
  }

  const title = `📊 Metrics Evaluation: ${url}\n`;

  fs.appendFileSync(filePath, title);
  console.log(chalk.bold('\n' + title));

  for (const [key, value] of Object.entries(metrics)) {
    const threshold = thresholds[key];
    if (!threshold) {
      continue;
    }

    const { value: thresholdValue, critical, unit: thresholdUnit } = threshold;
    const passes = value <= thresholdValue;

    let status = '';
    let color = chalk.white;

    if (passes) {
      status = '✅ Pass';
      color = chalk.green;
    } else if (!passes && critical) {
      status = '❌ FAIL (critical)';
      color = chalk.redBright;
      hasCriticalFailure = true;
    } else {
      status = '⚠️  FAIL (non-critical)';
      color = chalk.yellow;
    }

    const result = `${key.padEnd(18)}: ${`${String(value).substring(0, 8).padStart(8)} (threshold: ≤ ${thresholdValue}${thresholdUnit})`.padEnd(30)} → ${status}`;

    fs.appendFileSync(filePath, result + '\n');
    console.log(color(result));
  }

  fs.appendFileSync(filePath, '\n');
  console.log('\n');

  return !hasCriticalFailure;
}

export function reportResult(ok, reportPath) {
  const filePath = path.join(process.cwd(), reportPath);
  const result = ok ? '✅ OK' : '❌ KO';
  const color = ok ? chalk.green : chalk.redBright;

  fs.appendFileSync(filePath, result);
  console.log(color(result));
}