import * as path from "path";
import Generator from "yeoman-generator";
import promptQuestions from "./utils/questions";
const {
  error,
  loading,
  info,
} = require("prettycli");
import * as fs from "fs";
import {
  IAnswer,
} from "./type/answer"
import {
  IPkgJson,
  IPkgJsonFromTemplate,
} from "./type/pkgjson";
import {
  endMessage,
} from "./utils/endMessage"
import {
  createPkgJsonWithParcel,
  createPkgJsonWithWebpack,
} from "./utils/pkgjsonUtils"
const CFonts = require("cfonts");
import {
  features,
} from "./utils/projectFeatures";

export default class StarterGenerator extends Generator {
  private answers: IAnswer;
  private pkgjson: IPkgJson;

  constructor(args, opts) {
	super(args, opts);

	CFonts.say("Create|Web App", {
		font: "simple3d",
		align: "left",
		colors: ["yellowBright"],
		background: "transparent",
		letterSpacing: 1,
		lineHeight: 1,
		space: true,
		maxLength: "0",
	});

  }
  public async prompting() {
	const done: () => {} = this.async();
	// Have Yeoman greet the user.

	return this.prompt(promptQuestions)
		.then(
		(answer: IAnswer): void | PromiseLike<void> => {
			this.answers = answer;
			const tmppkgjsonFromAnswer: IPkgJson = {
			name: answer.projectName,
			author: answer.author,
			license: answer.license,
			description: answer.description,
			repo: answer.githubRepo,
			keywords: [answer.stack],
			};
			loading("CREATING", "Cooking your project ! Please wait ...");
			fs.readFile(
			path.join(__dirname, `../generators/app/templates/${answer.stack}/package.json`), {
				encoding: "utf-8",
			},
			async (err, data) => {
				if (err) {
				error("File Not Found, Internal Error.Please Report an issue");
				return;
				} else {
				let pkgjsonFromTemplate: IPkgJsonFromTemplate = JSON.parse(data);
				const {
					bundler,
				} = answer;
				pkgjsonFromTemplate = bundler == "Webpack" ? createPkgJsonWithWebpack(pkgjsonFromTemplate, tmppkgjsonFromAnswer) : bundler == "Parcel" ? createPkgJsonWithParcel(pkgjsonFromTemplate, tmppkgjsonFromAnswer) : pkgjsonFromTemplate;

				// Now will use this this.pkjson to write to the package.json file after copying of the files
				this.pkgjson = {
					...pkgjsonFromTemplate,
				};
				done();
				}
			});
		});
  }

  public writing() {
	info("DONE", "Copying your project.....");

	this.fs.copy(
		this.templatePath(path.join(__dirname, `../generators/app/templates/${this.answers.stack}`)),
		this.destinationPath(path.resolve(this.answers.projectName)),
	);
	info("DONE", "Writing your dependencies and scripts.....");

	this.fs.writeJSON(`${path.resolve(__dirname, this.answers.projectName)}/package.json`, this.pkgjson);

  }

  public install() {
	// this.installDependencies({
	//   npm: true,
	//   bower: false,
	// });
  }

  public end() {
	CFonts.say("Thank|You", {
		font: "block",
		align: "left",
		colors: ["yellowBright"],
		background: "transparent",
		letterSpacing: 1,
		lineHeight: 1,
		space: true,
		maxLength: "0",
	});

	endMessage(this.answers.projectName, features[this.answers.stack]);

  }

}