index.js

#!/usr/bin/env node

const fs = require('fs')
let config = require('./china-plate.json')
const { prompt, Separator } = require('inquirer')
const chalk = require('chalk')
const exec = require('./exec')
const { pcore, parray } = require('pico-lambda')

const { curry, pipe } = pcore
const { push, map } = parray

const logData = (param) => { console.log(param); return param }

const buildUserSelection = curry((selectFn, user) => ({ name: user.name, value: () => selectFn(user) }))
const buildUserPrompt = curry((message, extraOptions, userFunction, users) =>
  ({
    type: "list",
    name: "user",
    pageSize: 10,
    message,
    choices: pipe(
      map(buildUserSelection(userFunction)),
      push(new Separator()),
      push(...extraOptions)
    )(users)
  })
)
const buildChangePrompt = buildUserPrompt("Please select who's committing",
  [{ name: "Add Person...", value: addPrompt },
  { name: "Delete Person...", value: deletePrompt }],
  changeUser)
const buildDeletePrompt = buildUserPrompt("select a user to DELETE",
  [{ name: "Return...", value: changePrompt }],
  deleteUser)

const addUserPrompt = [
  {
    type: "input",
    name: "name",
    message: "User's name",
  },
  {
    type: "input",
    name: "username",
    message: "Git username",
  },
  {
    type: "input",
    name: "email",
    message: "git email address",
  }
]

function deletePrompt() {
  prompt(buildDeletePrompt(config))
    .then((answers) => {
      if (answers && typeof answers.user === "function") {
        answers.user()
      }
    })
}

function changePrompt() {
  prompt(buildChangePrompt(config))
    .then((answers) => {
      if (answers && typeof answers.user === "function") {
        answers.user()
      }
    })
}

function addPrompt() {
  prompt(addUserPrompt)
    .then((answers) => {
      addUser(answers)
    })
}

// const createAddUser = config => user => pipe(push(user), writeFile)

function addUser(user) {
  config = pipe(
    push(user),
    writeFile
  )(config)

  changePrompt()
}
function success() { }

function error(e) {
  if (e) {
    console.log(chalk.yellow(`Whoops! We ${e}ed
    No worries, it is probably not our fault.
    Can you please check
      1. If this is a git repo
      2. If you are in the correct directory`))
    process.exit(0)
  }
}

function changeUser({ username, email }) {
  exec('git', ["config", `user.name "${username}"`], error)
  exec('git', ["config", `user.email "${email}"`], error)
}

function deleteUser(user) {
  config = config.filter(u => u.username !== user.username)
  writeFile(config)

  changePrompt()
}

function writeFile(objToWrite) {
  fs.writeFile("china-plate.json", JSON.stringify(objToWrite, null, 2), function (err) {
    if (err) {
      return console.log(err);
    }

    console.log("The file was saved!");
  })

  return objToWrite
}

changePrompt()