const fs = require('fs')
const path = require('path')
const { execSync } = require('child_process')

const ROOT = '/Users/mohammedshafiuddin/WebDev/freshyo'
const APP = 'apps/user-ui'

const files = execSync(
  `find ${APP} -type f \\( -name '*.ts' -o -name '*.tsx' \\) -not -path '*/node_modules/*' -not -path '*/dist/*' -not -path '*/.expo/*' -not -path '*/.turbo/*'`,
  { cwd: ROOT }
).toString().trim().split('\n')

const codes = new Map()
for (const f of files) codes.set(f, fs.readFileSync(path.join(ROOT, f), 'utf8'))

function countWord(code, sym) {
  const re = new RegExp(`\\b${sym.replace(/\$/g, '\\$')}\\b`, 'g')
  return (code.match(re) || []).length
}

function exportedNames(code) {
  const names = new Set()
  let m
  const pats = [
    /export\s+(?:default\s+)?(?:async\s+)?function\s*\*?\s*(\w+)/g,
    /export\s+(?:const|let|var)\s+(\w+)/g,
    /export\s+(?:type|interface|class|enum)\s+(\w+)/g,
  ]
  for (const p of pats) while ((m = p.exec(code))) names.add(m[1])
  const br = /export\s*{([^}]*)}/g
  while ((m = br.exec(code))) {
    for (let part of m[1].split(',')) {
      part = part.replace(/\/\/[^\n]*/g, '').trim().replace(/^type\s+/, '')
      if (!part) continue
      const asM = part.match(/\bas\s+(\w+)$/)
      const nm = asM ? asM[1] : part.split(/\s/)[0]
      if (/^[\w$]+$/.test(nm)) names.add(nm)
    }
  }
  if (/export\s+default\s+function/.test(code) || /export\s+default\s+\w+/.test(code)) names.add('__default__')
  return [...names]
}

console.log('=== UNUSED EXPORTS per file (symbol not referenced in any OTHER user-ui file) ===')
for (const [f, code] of codes) {
  if (f.startsWith(`${APP}/app/`)) continue // routes
  const names = exportedNames(code)
  const unused = []
  for (const sym of names) {
    if (sym === '__default__') continue
    let refs = 0
    for (const [of, oc] of codes) {
      if (of === f) continue
      refs += countWord(oc, sym)
    }
    if (refs === 0) unused.push(sym)
  }
  if (unused.length) {
    console.log(`\n${f.replace(APP + '/', '')}`)
    console.log('   ' + unused.join(', '))
  }
}