servitect/bin/mvcInitializers.js

servitect stands for Server-Architect. A one-click Node.js MVC Server generator

// const fs = require("fs/promises")
import * as fs from "fs/promises";
import { exit } from "process";
import path from "path";
import readline from "readline";
import { exec } from "child_process";
import mvcFileContent from "./fileContents.js";
import { initializeReadline } from "./readlineInterface.js";
import { input, number } from "@inquirer/prompts";
import ansiColors from "ansi-colors";
import figures, { mainSymbols, fallbackSymbols, replaceSymbols } from "figures";
import chalk from "chalk";

// initializer functions
let rl = initializeReadline();
const initializers = {
  initDbConnection: async function (projectDirPath) {
    await fs.appendFile(
      `${projectDirPath}/db.js`,
      mvcFileContent.dbFileContent
    );
  },
  initMainAppFile: async function (projectDirPath) {
    let routePrefix = await input({
      message: "Enter the route prefix:",
      default: "/",
    });
    routePrefix = routePrefix.trim();
    const isValidRoute = /^\/[a-zA-Z0-9-_]*$/.test(routePrefix);

    if (!isValidRoute || !routePrefix) {
      console.log(
        ansiColors.cyan(
          `${figures.info} Invalid route prefix entered. Using Default Route Prefix.`
        )
      );
      routePrefix = "/";
    }

    await fs.appendFile(
      `${projectDirPath}/app.js`,
      mvcFileContent.appFileContent(routePrefix)
    );
  },
  initEnv: async function (projectDirPath) {
    const PORT = await number({
      message: "Enter port number you want to use:",
      default: 4000,
      min: 1024,
      max: 65535,
    });

    const CONNECTION_STRING = await input({
      message: "Enter the mongodb connection string:",
      default: "",
    });
    await fs.appendFile(
      `${projectDirPath}/.env`,
      mvcFileContent.envFileContent(PORT, CONNECTION_STRING)
    );
  },

  initGitIgnore: async function (projectDirPath) {
    await fs.appendFile(
      `${projectDirPath}/.gitignore`,
      mvcFileContent.gitIgnoreFileContent
    );
  },

  initPackageFile: async function (projectDirPath) {
    await fs.appendFile(
      `${projectDirPath}/package.json`,
      mvcFileContent.packageJsonFileContent
    );
  },

  initConstants: async function (projectDirPath) {
    const constantDir = path.join(projectDirPath, `constants`);
    await fs.mkdir(constantDir, { recursive: true });
    await fs.writeFile(
      path.join(constantDir, "Message.js"),
      mvcFileContent.messageFileContent
    );
  },

  initMVC: async function (projectDirPath) {
    const modelsDir = path.join(projectDirPath, "models");
    await fs.mkdir(modelsDir, { recursive: true });
    const controllersDir = path.join(projectDirPath, "controllers");
    await fs.mkdir(controllersDir, { recursive: true });

    const routesDir = path.join(projectDirPath, "routes");
    await fs.mkdir(routesDir, { recursive: true });
    await fs.writeFile(
      `${projectDirPath}/routes/router.js`,
      mvcFileContent.routerFileContent
    );
  },
  initHelpers: async function (projectDirPath) {
    const helperDir = path.join(projectDirPath, "helper");
    await fs.mkdir(helperDir, { recursive: true });

    await fs.writeFile(
      path.join(helperDir, "JsonResponse.js"),
      mvcFileContent.JsonResponseFileContent
    );

    await fs.writeFile(
      path.join(helperDir, "JWTAuthHelper.js"),
      mvcFileContent.JWTAuthHelperFileContent
    );

    await fs.writeFile(
      path.join(helperDir, "TryCatch.js"),
      mvcFileContent.tryCatchFileContent
    );
  },
  initDocker: async function (projectDirPath) {
    const dirName = "initialImage";
    const tagName = "v1";
    await fs.appendFile(
      `${projectDirPath}/Dockerfile`,
      mvcFileContent.dockerFileContent
    );
    console.log(`1) To build image : docker build -t ${dirName}:${tagName}.`);
    console.log(
      `2) To use image (container invocation) : docker run -it -p 4000:4000 --rm ${dirName}:${tagName}`
    );
    console.log("3) View Images: docker images");
    console.log("4) View Containers(all): docker ps -a");
    console.log(`5) Delete Image: docker rmi ${dirName}:${tagName}`);
    console.log(`6) Remove Container: docker rm "containerName"`);
  },
};

export default initializers;