import { readFileSync } from 'node:fs'
import { spawnSync } from 'node:child_process'

const run = spawnSync('npx', ['knip', '--reporter', 'json', '--include', 'exports,nsExports,types,nsTypes'], {
  encoding: 'utf8',
})
if (!run.stdout) {
  process.stderr.write(run.stderr || 'knip produced no output\n')
  process.exit(1)
}
const data = JSON.parse(run.stdout)
let count = 0
for (const issue of data.issues ?? []) {
  for (const key of ['exports', 'types', 'nsExports', 'nsTypes']) {
    count += (issue[key] ?? []).length
  }
}
const limit = JSON.parse(readFileSync(new URL('../knip-baseline.json', import.meta.url))).exports
if (count > limit) {
  console.error(`knip unused exports ${count} exceed baseline ${limit}`)
  process.exit(1)
}
console.log(`knip unused exports ${count} <= ${limit}`)