import { execSync } from 'node:child_process'
import {
  copyFileSync,
  cpSync,
  existsSync,
  mkdirSync,
  rmSync,
  statSync,
  writeFileSync,
} from 'node:fs'
import path from 'node:path'
import { fileURLToPath } from 'node:url'

const root = path.resolve(path.dirname(fileURLToPath(import.meta.url)), '..')
process.chdir(root)

const runtimeDir = path.join(root, 'runtime')
const engineName = 'libquery_engine-debian-openssl-3.0.x.so.node'
const engineSrc = path.join(root, 'node_modules', '.prisma', 'client', engineName)

function mb(file) {
  return `${(statSync(file).size / (1024 * 1024)).toFixed(1)}MB`
}

console.log('==> nest build')
rmSync(path.join(root, 'dist'), { recursive: true, force: true })
rmSync(path.join(root, 'tsconfig.build.tsbuildinfo'), { force: true })
execSync('npx nest build', { stdio: 'inherit' })
if (!existsSync(path.join(root, 'dist', 'main.js'))) {
  throw new Error('dist/main.js ساخته نشد')
}

console.log('==> prisma generate (debian engine)')
execSync('npx prisma generate', {
  stdio: 'inherit',
  env: {
    ...process.env,
    DATABASE_URL:
      process.env.DATABASE_URL
      || 'postgresql://build:build@localhost:5432/build?schema=public',
  },
})
if (!existsSync(engineSrc)) {
  throw new Error(`${engineName} ساخته نشد. binaryTargets را در schema.prisma چک کنید.`)
}

rmSync(runtimeDir, { recursive: true, force: true })
mkdirSync(runtimeDir, { recursive: true })

console.log('==> esbuild bundle (بدون node_modules در ایمیج)')
execSync(
  [
    'npx --yes esbuild dist/main.js',
    '--bundle',
    '--platform=node',
    '--target=node22',
    '--format=cjs',
    '--outfile=runtime/server.cjs',
    '--keep-names',
    '--legal-comments=none',
    '--alias:class-transformer/storage=node_modules/class-transformer/cjs/storage.js',
    '--external:@nestjs/microservices',
    '--external:@nestjs/microservices/microservices-module',
    '--external:@nestjs/websockets',
    '--external:@nestjs/websockets/socket-module',
  ].join(' '),
  { stdio: 'inherit' },
)

copyFileSync(engineSrc, path.join(runtimeDir, engineName))
const schemaSrc = path.join(root, 'node_modules', '.prisma', 'client', 'schema.prisma')
if (existsSync(schemaSrc)) {
  copyFileSync(schemaSrc, path.join(runtimeDir, 'schema.prisma'))
}

const migrationsSrc = path.join(root, 'prisma', 'migrations')
if (existsSync(migrationsSrc)) {
  cpSync(migrationsSrc, path.join(runtimeDir, 'migrations'), { recursive: true })
}

writeFileSync(
  path.join(runtimeDir, 'package.json'),
  `${JSON.stringify({ name: 'fabric-trade-runtime', private: true, type: 'commonjs' }, null, 2)}\n`,
)

if (!existsSync(path.join(runtimeDir, 'server.cjs'))) {
  throw new Error('runtime/server.cjs ساخته نشد')
}

console.log(`runtime/server.cjs ${mb(path.join(runtimeDir, 'server.cjs'))}`)
console.log(`runtime/${engineName} ${mb(path.join(runtimeDir, engineName))}`)
console.log('runtime آماده است. commit و push کنید. مایگریت روی سرور اجرا می‌شود.')