Update task

Author: JoelDiaz93

.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

src/createServer.js

@@ -1,3 +1,82 @@
-// Write code here
-// Also, you can create additional files in the src folder
-// and import (require) them here
+const http = require('node:http');
+
+const { convertToCase } = require('./convertToCase');
+
+const SUPPORTED_CASES = ['SNAKE', 'KEBAB', 'CAMEL', 'PASCAL', 'UPPER'];
+const REQUEST_EXAMPLE = '"/<TEXT_TO_CONVERT>?toCase=<CASE_NAME>".';
+
+const ERROR_MESSAGES = {
+  missingText: [
+    'Text to convert is required.',
+    `Correct request is: ${REQUEST_EXAMPLE}`,
+  ].join(' '),
+  missingCase: [
+    '"toCase" query param is required.',
+    `Correct request is: ${REQUEST_EXAMPLE}`,
+  ].join(' '),
+  unsupportedCase: [
+    'This case is not supported.',
+    'Available cases: SNAKE, KEBAB, CAMEL, PASCAL, UPPER.',
+  ].join(' '),
+};
+
+function sendJson(res, statusCode, statusMessage, payload) {
+  res.statusCode = statusCode;
+  res.statusMessage = statusMessage;
+  res.setHeader('Content-Type', 'application/json');
+  res.end(JSON.stringify(payload));
+}
+
+function getRequestData(url) {
+  const [path = '', queryString = ''] = url.split('?');
+  const text = path.startsWith('/') ? path.slice(1) : path;
+  const params = new URLSearchParams(queryString);
+  const toCase = params.get('toCase');
+
+  return {
+    text,
+    toCase,
+  };
+}
+
+function validateRequest(text, toCase) {
+  const errors = [];
+
+  if (!text) {
+    errors.push({ message: ERROR_MESSAGES.missingText });
+  }
+
+  if (!toCase) {
+    errors.push({ message: ERROR_MESSAGES.missingCase });
+  } else if (!SUPPORTED_CASES.includes(toCase)) {
+    errors.push({ message: ERROR_MESSAGES.unsupportedCase });
+  }
+
+  return errors;
+}
+
+function createServer() {
+  return http.createServer((req, res) => {
+    const { text, toCase } = getRequestData(req.url || '/');
+    const errors = validateRequest(text, toCase);
+
+    if (errors.length > 0) {
+      sendJson(res, 400, 'Bad request', { errors });
+
+      return;
+    }
+
+    const { originalCase, convertedText } = convertToCase(text, toCase);
+
+    sendJson(res, 200, 'OK', {
+      originalCase,
+      targetCase: toCase,
+      originalText: text,
+      convertedText,
+    });
+  });
+}
+
+module.exports = {
+  createServer,
+};