const { execFileSync } = require('node:child_process')
const { existsSync, mkdirSync, mkdtempSync, cpSync, rmSync } = require('node:fs')
const { delimiter, join, resolve } = require('node:path')
const { tmpdir } = require('node:os')
const root = resolve(__dirname, '..')
const plugin = (process.env.PATH || '')
  .split(delimiter)
  .map((p) =>
    join(
      p,
      process.platform === 'win32'
        ? 'protoc-gen-typescript-http.exe'
        : 'protoc-gen-typescript-http',
    ),
  )
  .find(existsSync)
if (!plugin) throw new Error('Install protoc-gen-typescript-http v0.10.0; see README')
if (execFileSync('protoc', ['--version'], { encoding: 'utf8' }).trim() !== 'libprotoc 36.0')
  throw new Error('protoc 36.0 is required')
if (
  !execFileSync('go', ['version', '-m', plugin], { encoding: 'utf8' }).includes(
    'go.einride.tech/protoc-gen-typescript-http\tv0.10.0\t',
  )
)
  throw new Error('protoc-gen-typescript-http v0.10.0 is required')
const source = resolve(root, '../evening_detective_server/api')
const temporary = mkdtempSync(join(tmpdir(), 'screen-proto-'))
try {
  execFileSync(
    'protoc',
    [
      `--plugin=protoc-gen-typescript-http=${plugin}`,
      `--proto_path=${source}`,
      `--typescript-http_out=${temporary}`,
      join(source, 'main.proto'),
    ],
    { stdio: 'inherit' },
  )
  const target = join(root, 'electron/api/generated')
  mkdirSync(target, { recursive: true })
  cpSync(temporary, target, { recursive: true })
} finally {
  rmSync(temporary, { recursive: true, force: true })
}