bulls-and-cows

.github/workflows/test.yml-template

@@ -0,0 +1,23 @@
+name: Test
+
+on:
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [20.x]
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+    - run: npm install
+    - run: npm test

package.json

@@ -18,7 +18,7 @@
   "license": "GPL-3.0",
   "devDependencies": {
     "@mate-academy/eslint-config": "latest",
-    "@mate-academy/scripts": "^1.8.6",
+    "@mate-academy/scripts": "^1.9.12",
     "eslint": "^8.57.0",
     "eslint-plugin-jest": "^28.6.0",
     "eslint-plugin-node": "^11.1.0",

src/app.js

@@ -1,3 +1,42 @@
 'use strict';
 
-// Write your code here
+const readline = require('node:readline');
+const terminal = readline.createInterface(process.stdin, process.stdout);
+const { getBullsAndCows } = require('./modules/getBullsAndCows');
+const { checkIsValidUserInput } = require('./modules/checkIsValidUserInput');
+
+async function runTerminal() {
+  while (true) {
+    const numbers = await new Promise((resolve) => {
+      terminal.question(
+        "Let's start game! Write four numbers in field:\n",
+        resolve,
+      );
+    });
+
+    const check = await checkIsValidUserInput(numbers);
+
+    if (!check) {
+      process.stdout.write('False, check numbers, try again!\n');
+
+      continue;
+    }
+
+    const result = await getBullsAndCows(numbers);
+    const resStr = JSON.stringify(result);
+
+    process.stdout.write(`Result is ${resStr}\n`);
+
+    const continueGame = await new Promise((resolve) => {
+      terminal.question('Do you want to continue GAME, Yes/No ?', resolve);
+    });
+
+    if (continueGame.toLowerCase() === 'no') {
+      break;
+    }
+  }
+
+  terminal.close();
+}
+
+runTerminal();

src/modules/checkIsValidUserInput.js

@@ -9,7 +9,19 @@
  * @return {boolean} - True if the user input is valid, false otherwise
  */
 function checkIsValidUserInput(userInput) {
-  /* Write your code here */
+  const usersNum = String(userInput).split('');
+  const unic = new Set(userInput);
+
+  if (
+    usersNum.length !== 4 ||
+    !/^\d+$/.test(userInput) ||
+    userInput[0].includes('0') ||
+    unic.size < 4
+  ) {
+    return false;
+  }
+
+  return true;
 }
 
 module.exports = {

src/modules/generateRandomNumber.js

@@ -7,7 +7,13 @@
  * @return {number} A random 4-digit number
  */
 function generateRandomNumber() {
-  /* Write your code here */
+  const n = new Set();
+
+  while (n.size < 4) {
+    n.add(Math.ceil(Math.random() * 9));
+  }
+
+  return +Array.from(n).join('');
 }
 
 module.exports = {

src/modules/getBullsAndCows.js

@@ -1,5 +1,7 @@
 'use strict';
 
+const { generateRandomNumber } = require('./generateRandomNumber');
+
 /**
  * Calculate the number of bulls and cows for a given user input.
  * Bulls are digits that are in the correct position.
@@ -12,8 +14,24 @@
  * @return {object} An object containing the number of bulls and cows.
  * Example: { bulls: 1, cows: 2 }
  */
-function getBullsAndCows(userInput, numberToGuess) {
-  /* Write your code here */
+function getBullsAndCows(userInput, numberToGuess = generateRandomNumber()) {
+  const convert = (v) => String(v).split('');
+  const result = {
+    bulls: 0,
+    cows: 0,
+  };
+  const userGuessed = convert(userInput);
+  const secretNum = convert(numberToGuess);
+
+  for (let i = 0; i < userGuessed.length; i++) {
+    if (userGuessed[i] === secretNum[i]) {
+      result.bulls += 1;
+    } else if (userGuessed.includes(secretNum[i])) {
+      result.cows += 1;
+    }
+  }
+
+  return result;
 }
 
 module.exports = {