#! /usr/bin/env node

import path from "path";
import program from "commander";
import chalk from "chalk";
import { ensureDirSync } from "fs-extra";
import createApp from "../createApp";
import TemplateModel from "../TemplateModel";
import verifyDirectoryName from "../verifyDirectoryName";
import verifyWorkingDirectory from "../verifyWorkingDirectory";
import verifyNodeVersion from "../verifyNodeVersion";

// Cannot be `import` as it's not under TS root dir
const pkg = require("../../package.json");

process.on("unhandledRejection", (error) => {
  throw error;
});

program
  .version(pkg.version)
  .option(
    "--answers-file [filepath]",
    "A path to a javascript file that returns an answers object"
  )
  .arguments("[project-directory]")
  .usage(chalk.cyan("[project-directory]"))
  .parse(process.argv);

let workingDir = process.cwd();
const customProjectDir = program.args[0];
const answersFile = program.answersFile;

verifyNodeVersion();

verifyDirectoryName(customProjectDir || workingDir);

if (customProjectDir) {
  ensureDirSync(customProjectDir);
  workingDir = path.resolve(customProjectDir);
  process.chdir(workingDir);
}

verifyWorkingDirectory(workingDir);

const templateModel = answersFile
  ? TemplateModel.fromFilePath(answersFile)
  : undefined;

createApp({
  workingDir,
  templateModel,
}).then(({ projectName }) => {
  console.log(
    `\nSuccess! 🙌  Created ${chalk.magenta(projectName)} at ${chalk.green(
      workingDir
    )}`
  );

  console.log("You can run the following commands:\n");
  console.log(chalk.cyan("  npm start"));
  console.log("    Start your app in development mode\n");
  console.log(chalk.cyan("  npm test"));
  console.log("    Run the test runner\n");
  console.log(chalk.cyan("  npx yoshi lint"));
  console.log("    Run the linter\n");
  console.log(chalk.cyan("  npx yoshi build"));
  console.log("    Build your app for production\n");

  console.log(
    `We advise you'll start by running the following command${
      customProjectDir ? "s" : ""
    }:\n`
  );

  if (customProjectDir) {
    console.log(chalk.cyan(`cd ${customProjectDir}`));
  }

  console.log(chalk.cyan("npm start\n"));

  console.log("Good luck! 🍀");
});