import * as fs from 'fs';
import { resolve as pathResolve } from 'path';
import { spawnSync } from 'child_process';
import { getBuildPath } from '@erect/core/paths';
import { config } from '@erect/core/config';
import { build } from './build.handler';
import { cliStartHook } from '../hooks';

cliStartHook.addAction('default', async () => {
  const clientBuildPath = pathResolve(getBuildPath(), config.bundles.server.buildOutputDir);
  if (!fs.existsSync(clientBuildPath)) {
    await build({ target: 'client', optimize: true });
  }
  const compiledFiles: string[] = [
    pathResolve(
      getBuildPath(),
      config.bundles.server.buildOutputDir,
      'index.js',
    ),
  ];

  const args = [
    '-r',
    'tsconfig-paths/register',
  ];
  const files = compiledFiles.slice(0);
  while (files.length > 0) {
    const compiledFile = files.shift();
    if (compiledFile != null) {
      if (files.length > 0) {
        args.push('-r');
      }
      args.push(compiledFile);
    }
  }
  args.push('--color');

  spawnSync('node', args, {
    stdio: 'inherit',
    env: {
      PATH: process.env.PATH,
      NODE_ENV: 'production',
      ...(process.env.ERECT_DIR != null && {
        ERECT_DIR: process.env.ERECT_DIR,
      }),
      ERECT_COMMAND: 'start',
    },
  });
});