import { Command } from 'commander'
import Path from 'path'
import fs from 'fs'
import { compile } from '../compiler'
import Glob from 'glob'

const ensureDirectoryExistence = (filePath: string): void => {
  const dirname = Path.dirname(filePath)
  if (fs.existsSync(dirname)) {
    return
  }
  ensureDirectoryExistence(dirname)
  fs.mkdirSync(dirname)
}

export default (program: Command): void => {
  program.command('compile')
    .description('Compile Templates files')
    .argument('<paths...>')
    .action((paths: string[]) => {
      paths
        .flatMap(path => Glob.sync(path))
        .filter((path, index, self) => index === self.findIndex(item => item === path))
        .filter(path => !path.endsWith('rjt.jsx') && !path.endsWith('rjt.tsx'))
        .forEach(path => {
          const code = compile(path)
          const filePath = path
            .replace(/\.jsx$/, '.rjt.jsx')
            .replace(/\.tsx$/, '.rjt.tsx')

          ensureDirectoryExistence(filePath)
          fs.writeFileSync(filePath, code)
        })
    })
}