import * as fs from 'fs'
import { NextConfig } from 'next'
import * as path from 'path'
import { TransformerConfig } from '../../transformer/types/config.types'
import { LoadedUnbodyConfig } from '../types'

export const generateTransformerConfig = ({
  config,
  nextConfig,
}: {
  config: LoadedUnbodyConfig
  nextConfig: NextConfig
}): TransformerConfig => {
  const conf: TransformerConfig = {
    dir: config.dir,
    distDir: nextConfig.distDir || '.next',
    pagesDir: nextConfig.pagesDir,
    projectDir: config.projectDir,
    outDir: path.join(config.dir, 'out'),
    pagesMetadata: path.join(config.dir, 'pages-metadata.json'),
    browser: {
      enable: config.output.browser.enable,
      concurrency: config.output.browser.concurrency,
      resourceUrlWhitelist: config.output.browser.resourceUrlWhitelist,
    },
    server: {
      enable: config.output.server.enable,
    },

    remote: config.remote,
  }

  fs.writeFileSync(
    path.join(conf.dir, 'transformer.config.json'),
    JSON.stringify(conf, null, 2),
  )

  return conf
}