const fs = require('fs')
const path = require('path')

const html = fs.readFileSync('D:/Sites/Skinbase26/skinbase.top-20260429T075355.html', 'utf8')

// The LH report embeds JSON like: const __json__ = ... or as a compressed string
// Try to find the JSON blob by locating "requestedUrl"
const idx = html.indexOf('"requestedUrl"')
if (idx === -1) {
  console.log('No requestedUrl found in file')
  process.exit(1)
}

// Walk backwards to find the opening { of the top-level object
let start = idx
while (start > 0 && html[start] !== '{') start--

// Walk forward to find the matching close — take a large slice and try to parse
const slice = html.slice(start)

// Find the end by counting braces
let depth = 0
let end = 0
for (let i = 0; i < slice.length; i++) {
  if (slice[i] === '{') depth++
  else if (slice[i] === '}') {
    depth--
    if (depth === 0) {
      end = i + 1
      break
    }
  }
}

let lhr
try {
  lhr = JSON.parse(slice.slice(0, end))
} catch {
  // Try taking the slice up to the first </script> after requestedUrl
  const scriptEnd = html.indexOf('</script>', idx)
  const scriptSlice = html.slice(start, scriptEnd).replace(/;?\s*$/, '')
  lhr = JSON.parse(scriptSlice)
}

// Print category scores
console.log('=== CATEGORY SCORES ===')
for (const [id, cat] of Object.entries(lhr.categories || {})) {
  console.log(`  ${id}: ${Math.round((cat.score || 0) * 100)}`)
}

// Print failed/low audits (score < 1 and not null)
console.log('\n=== FAILED / LOW AUDITS ===')
for (const [id, audit] of Object.entries(lhr.audits || {})) {
  if (audit.score === null || audit.score === undefined) continue
  if (audit.score >= 1) continue
  const items = audit.details?.items?.length || 0
  const displayValue = audit.displayValue || ''
  console.log(`  [${(audit.score * 100).toFixed(0).padStart(3)}] ${id}  ${displayValue}`)
  if (items > 0 && audit.score < 0.9) {
    const heads = (audit.details?.items || []).slice(0, 4)
    heads.forEach((item) => {
      const label = item.node?.snippet || item.url || item.description || item.label || JSON.stringify(item).slice(0, 120)
      console.log(`        • ${label}`)
    })
  }
}

// Print all opportunity audits
console.log('\n=== OPPORTUNITY AUDITS ===')
for (const [id, audit] of Object.entries(lhr.audits || {})) {
  if (audit.details?.type !== 'opportunity') continue
  const savings = audit.details?.overallSavingsMs || 0
  if (savings < 100) continue
  console.log(`  ${id}: ${savings}ms savings`)
}