import { chmodSync, existsSync, mkdirSync } from 'fs'
import { dirname } from 'path'

const pkg = await Bun.file(new URL('../package.json', import.meta.url)).json() as {
  name: string
  version: string
}

const args = process.argv.slice(2)
const compile = args.includes('--compile')

const features: string[] = []
for (let i = 0; i < args.length; i += 1) {
  const arg = args[i]
  if (arg === '--feature' && args[i + 1]) {
    features.push(args[i + 1]!)
    i += 1
    continue
  }
  if (arg.startsWith('--feature=')) {
    features.push(arg.slice('--feature='.length))
  }
}

const outfile = compile ? './dist/cli' : './cli'
const buildTime = new Date().toISOString()

mkdirSync(dirname(outfile), { recursive: true })

const externals = [
  '@ant/*',
  'audio-capture-napi',
  'image-processor-napi',
  'modifiers-napi',
  'url-handler-napi',
]

const defines = {
  'process.env.USER_TYPE': JSON.stringify('external'),
  'process.env.CLAUDE_CODE_VERIFY_PLAN': JSON.stringify('false'),
  'MACRO.VERSION': JSON.stringify(pkg.version),
  'MACRO.BUILD_TIME': JSON.stringify(buildTime),
  'MACRO.PACKAGE_URL': JSON.stringify(pkg.name),
  'MACRO.NATIVE_PACKAGE_URL': 'undefined',
  'MACRO.FEEDBACK_CHANNEL': JSON.stringify('github'),
  'MACRO.ISSUES_EXPLAINER': JSON.stringify(
    'This reconstructed source snapshot does not include Anthropic internal issue routing.',
  ),
  'MACRO.VERSION_CHANGELOG': JSON.stringify(
    'https://github.com/paoloanzn/claude-code',
  ),
} as const

const cmd = [
  'bun',
  'build',
  './src/entrypoints/cli.tsx',
  '--compile',
  '--target',
  'bun',
  '--format',
  'esm',
  '--outfile',
  outfile,
  '--minify',
  '--bytecode',
  '--packages',
  'bundle',
  '--conditions',
  'bun',
]

for (const external of externals) {
  cmd.push('--external', external)
}

for (const [key, value] of Object.entries(defines)) {
  cmd.push('--define', `${key}=${value}`)
}

const proc = Bun.spawnSync({
  cmd,
  cwd: process.cwd(),
  stdout: 'inherit',
  stderr: 'inherit',
})

if (proc.exitCode !== 0) {
  process.exit(proc.exitCode ?? 1)
}

if (existsSync(outfile)) {
  chmodSync(outfile, 0o755)
}

console.log(`Built ${outfile}`)