import fs from 'fs'
import { DeleteFunctionState } from './types'

export const underscoreVersion = (version: string) => version.replace(/\./g, '_')

export const getFunctionVersions: any = (namespace: string, functionName: string) => {
  console.info('namespace', namespace)
  return fs.readdirSync(`./API/${namespace}/${functionName}`, { withFileTypes: true }).filter((dirent) => dirent.isDirectory())
    .map((dirent) => dirent.name)
}

export const deleteEndpoint = async ({
  namespace,
  functionName,
  version,
}: DeleteFunctionState) => {
  const path = `./API/${namespace}/${functionName}/${version}`
  return fs.rmSync(path, { recursive: true, force: true })
}

export const deleteNamespace = async ({
  namespace,
}: DeleteFunctionState) => {
  const path = `./API/${namespace}`
  return fs.rmSync(path, { recursive: true, force: true })
}

export const updateIndexFile = async ({
  namespace,
  functionName,
  version,
}: DeleteFunctionState) => {
  const filePath = './API/index.ts'
  return fs.readFile(
    filePath,
    'utf-8',
    (err, contents) => {
      if (err) {
        console.info(err)
        return
      }
      const newFunctionName = `
  ${namespace}_${functionName}_${underscoreVersion(version)}: true,`

      const regEx = new RegExp(newFunctionName, 'g')
      const replaced = contents.replace(regEx, '')

      fs.writeFile(filePath, replaced, 'utf-8', (err2) => {
        if (err2) console.info(err2)
      })
    },
  )
}