`lynx-docs init` collection

lynx-docs-init-collection.js

const rl = require("readline").createInterface({
  input: process.stdin,
  output: process.stdout
});

let questions = {
  dir: { question: "Template directory", default: ".", validate: /^.+$/, response: null },
  template: { question: "Create default template file", default: "yes", validate: /^(y(es)?)|(n(o)?)$/i, response: null },
  data: { question: "Create default data file", default: "yes", validate: /^(y(es)?)|(n(o)?)$/i, response: null },
  port: { question: "Port to listen for requests", default: "3000", validate: /^\d+$/, response: null }
};

let position = 0;

function askNextQuestion() {
  let keys = Object.keys(questions);
  if (position >= keys.length) return handleCompletion();
  let key = keys[position];
  let q = questions[key];
  let prompt = q.question + " (" + q.default+") ";
  rl.question(prompt, (answer) => {
    if (answer.length > 0 && !q.validate.exec(answer)) return askNextQuestion();
    q.response = answer;
    if (key === "template" && answer.toLowerCase().startsWith("n")) delete questions.data;
    position++;
    askNextQuestion();
  });
}

function handleCompletion() {
  console.log("Here is the result\n", questions);
  rl.close();
  process.exit();
}

console.log("This utility will walk you through creating a lynx-docs project. It only covers the most common items, and tries to guess sensible defaults.\n");

askNextQuestion();