/** @type {import('lighthouse').Config} */
module.exports = {
  ci: {
    collect: {
      url: ["http://localhost:3000"],
      numberOfRuns: 3,
      startServerCommand: "npm run start",
      startServerReadyPattern: "ready",
      startServerReadyTimeout: 30000,
    },
    assert: {
      assertions: {
        "categories:performance": ["error", { minScore: 1 }],
        "categories:accessibility": ["error", { minScore: 1 }],
        "categories:best-practices": ["error", { minScore: 1 }],
        "categories:seo": ["error", { minScore: 1 }],
        // Core Web Vitals
        "first-contentful-paint": ["error", { maxNumericValue: 1800 }],
        "largest-contentful-paint": ["error", { maxNumericValue: 2500 }],
        "cumulative-layout-shift": ["error", { maxNumericValue: 0.1 }],
        "total-blocking-time": ["error", { maxNumericValue: 200 }],
        "speed-index": ["error", { maxNumericValue: 3400 }],
        // Performance metrics
        interactive: ["error", { maxNumericValue: 3800 }],
        "uses-optimized-images": "error",
        "uses-text-compression": "error",
        "uses-responsive-images": "error",
        "modern-image-formats": "error",
        "offscreen-images": "error",
        "render-blocking-resources": "error",
        "unused-css-rules": "error",
        "unused-javascript": "error",
        "efficient-animated-content": "error",
        "preload-lcp-image": "error",
        "uses-long-cache-ttl": "error",
        "total-byte-weight": ["error", { maxNumericValue: 1600000 }],
      },
    },
    upload: {
      target: "temporary-public-storage",
    },
  },
}