/**
 * Lighthouse CI Configuration
 * v0.14.0 TASK-STAG-003: Validation Lighthouse
 *
 * Targets:
 *   Performance >= 85
 *   Accessibility >= 90
 *   PWA >= 90 (best-practices proxy when PWA not applicable)
 *   Best Practices >= 85
 *   SEO >= 80
 */
module.exports = {
  ci: {
    collect: {
      url: [
        `${process.env.STAGING_URL || 'https://staging.veza.app'}/login`,
        `${process.env.STAGING_URL || 'https://staging.veza.app'}/register`,
      ],
      numberOfRuns: 3,
      settings: {
        preset: 'desktop',
        // Throttling: simulate cable connection
        throttling: {
          cpuSlowdownMultiplier: 1,
          downloadThroughputKbps: 10240,
          uploadThroughputKbps: 5120,
          rttMs: 40,
        },
        // Skip audits that require auth
        skipAudits: [
          'uses-http2', // Depends on server config
        ],
      },
    },
    assert: {
      assertions: {
        // Performance >= 85
        'categories:performance': ['error', { minScore: 0.85 }],
        // Accessibility >= 90
        'categories:accessibility': ['error', { minScore: 0.90 }],
        // Best Practices >= 85
        'categories:best-practices': ['warn', { minScore: 0.85 }],
        // SEO >= 80
        'categories:seo': ['warn', { minScore: 0.80 }],

        // Core Web Vitals
        'first-contentful-paint': ['warn', { maxNumericValue: 1800 }],
        'largest-contentful-paint': ['warn', { maxNumericValue: 2500 }],
        'cumulative-layout-shift': ['error', { maxNumericValue: 0.1 }],
        'total-blocking-time': ['warn', { maxNumericValue: 300 }],

        // Accessibility specifics (ORIGIN_UI_UX_SYSTEM compliance)
        'color-contrast': 'error',
        'image-alt': 'error',
        'label': 'error',
        'button-name': 'error',
        'link-name': 'error',
        'document-title': 'error',
        'html-has-lang': 'error',
        'meta-viewport': 'error',
      },
    },
    upload: {
      target: 'filesystem',
      outputDir: '.lighthouseci',
    },
  },
};