#! /usr/bin/env node
const inquirer = require("inquirer");
const fs = require("fs");

// SOURCE CODE: https://github.com/vKxni/noobject

const CURR_DIR = process.cwd();
const CHOICES = fs.readdirSync(`${__dirname}/templates`);

// Questions asked to the User
const QUESTIONS = [
  {
    name: "project-choice",
    type: "list",
    message: "What project template would you like to generate?",
    choices: CHOICES,
  },
  {
    name: "project-name",
    type: "input",
    message: "Project name:",
    validate: (input) => {
      if (/^([A-Za-z\-\_\d])+$/.test(input)) return true;
      else
        return "Project name may only include letters, numbers, underscores and hashes.";
    },
  },
];

// Send a prompt to choose a template
inquirer.prompt(QUESTIONS).then((answers) => {
  const projectChoice = answers["project-choice"];
  const projectName = answers["project-name"];
  const templatePath = `${__dirname}/templates/${projectChoice}`;

  // Create the folder with the project name choosed by the user
  fs.mkdirSync(`${CURR_DIR}/${projectName}`);

  createDirectoryContents(templatePath, projectName);

  console.log(`✅ Successfully created ${projectName}`);
});

const createDirectoryContents = (templatePath, newProjectPath) => {
  const filesToCreate = fs.readdirSync(templatePath);

  filesToCreate.forEach((file) => {
    const origFilePath = `${templatePath}/${file}`;

    const stats = fs.statSync(origFilePath);

    if (stats.isFile()) {
      const contents = fs.readFileSync(origFilePath, "utf8");

      if (file === ".npmignore") file = ".gitignore";

      const writePath = `${CURR_DIR}/${newProjectPath}/${file}`;
      fs.writeFileSync(writePath, contents, "utf8");

      console.log(`⚠️ Created ${writePath}`);

    } else if (stats.isDirectory()) {
      fs.mkdirSync(`${CURR_DIR}/${newProjectPath}/${file}`);

      createDirectoryContents(
        `${templatePath}/${file}`,
        `${newProjectPath}/${file}`
      );
    }
  });
};