From 1f91a47e1763b30414c5ad72244e42df874c8080 Mon Sep 17 00:00:00 2001
From: Damian Krawczyk <pirrat82@gmail.com>
Date: Thu, 14 May 2026 17:32:08 +0200
Subject: [PATCH] add task solution

---
 .github/workflows/test.yml-template | 23 +++++++++
 package-lock.json                   | 18 +++++--
 package.json                        |  5 +-
 src/createServer.js                 | 80 +++++++++++++++++++++++++++--
 4 files changed, 118 insertions(+), 8 deletions(-)
 create mode 100644 .github/workflows/test.yml-template

diff --git a/.github/workflows/test.yml-template b/.github/workflows/test.yml-template
new file mode 100644
index 000000000..bb13dfc45
--- /dev/null
+++ b/.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
diff --git a/package-lock.json b/package-lock.json
index fa582c7e6..0de71dfca 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,9 +9,12 @@
       "version": "1.0.0",
       "hasInstallScript": true,
       "license": "GPL-3.0",
+      "dependencies": {
+        "lodash": "^4.18.1"
+      },
       "devDependencies": {
         "@mate-academy/eslint-config": "latest",
-        "@mate-academy/scripts": "^1.8.6",
+        "@mate-academy/scripts": "^2.1.3",
         "eslint": "^8.57.0",
         "eslint-plugin-jest": "^28.6.0",
         "eslint-plugin-node": "^11.1.0",
@@ -1467,10 +1470,11 @@
       }
     },
     "node_modules/@mate-academy/scripts": {
-      "version": "1.8.6",
-      "resolved": "https://registry.npmjs.org/@mate-academy/scripts/-/scripts-1.8.6.tgz",
-      "integrity": "sha512-b4om/whj4G9emyi84ORE3FRZzCRwRIesr8tJHXa8EvJdOaAPDpzcJ8A0sFfMsWH9NUOVmOwkBtOXDu5eZZ00Ig==",
+      "version": "2.1.3",
+      "resolved": "https://registry.npmjs.org/@mate-academy/scripts/-/scripts-2.1.3.tgz",
+      "integrity": "sha512-a07wHTj/1QUK2Aac5zHad+sGw4rIvcNl5lJmJpAD7OxeSbnCdyI6RXUHwXhjF5MaVo9YHrJ0xVahyERS2IIyBQ==",
       "dev": true,
+      "license": "MIT",
       "dependencies": {
         "@octokit/rest": "^17.11.2",
         "@types/get-port": "^4.2.0",
@@ -6740,6 +6744,12 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/lodash": {
+      "version": "4.18.1",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.18.1.tgz",
+      "integrity": "sha512-dMInicTPVE8d1e5otfwmmjlxkZoUpiVLwyeTdUsi/Caj/gfzzblBcCE5sRHV/AsjuCmxWrte2TNGSYuCeCq+0Q==",
+      "license": "MIT"
+    },
     "node_modules/lodash.get": {
       "version": "4.4.2",
       "resolved": "https://registry.npmjs.org/lodash.get/-/lodash.get-4.4.2.tgz",
diff --git a/package.json b/package.json
index a6c885a1d..1f40910aa 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
   "license": "GPL-3.0",
   "devDependencies": {
     "@mate-academy/eslint-config": "latest",
-    "@mate-academy/scripts": "^1.8.6",
+    "@mate-academy/scripts": "^2.1.3",
     "eslint": "^8.57.0",
     "eslint-plugin-jest": "^28.6.0",
     "eslint-plugin-node": "^11.1.0",
@@ -26,5 +26,8 @@
   },
   "mateAcademy": {
     "projectType": "javascript"
+  },
+  "dependencies": {
+    "lodash": "^4.18.1"
   }
 }
diff --git a/src/createServer.js b/src/createServer.js
index 89724c920..2a3ca82a8 100644
--- a/src/createServer.js
+++ b/src/createServer.js
@@ -1,3 +1,77 @@
-// Write code here
-// Also, you can create additional files in the src folder
-// and import (require) them here
+/* eslint-disable max-len */
+const http = require('node:http');
+const { convertToCase } = require('./convertToCase');
+
+const SUPPORTED_CASES = ['SNAKE', 'KEBAB', 'CAMEL', 'PASCAL', 'UPPER'];
+
+function createServer() {
+  return http.createServer((req, res) => {
+    // Serwer zawsze powinien odpowiadać w formacie JSON
+    res.setHeader('Content-Type', 'application/json');
+
+    // Parsowanie URL i parametrów zapytania (query)
+    const [pathPart, queryPart] = req.url.split('?');
+    const textToConvert = pathPart.slice(1); // Usuwamy początkowy ukośnik (/)
+    const params = new URLSearchParams(queryPart || '');
+    const toCase = params.get('toCase');
+
+    const errors = [];
+
+    // Walidacja: brak tekstu
+    if (!textToConvert) {
+      errors.push({
+        message:
+          'Text to convert is required. Correct request is: "/<TEXT_TO_CONVERT>?toCase=<CASE_NAME>".',
+      });
+    }
+
+    // Walidacja: brak parametru toCase lub nieobsługiwany format
+    if (!toCase) {
+      errors.push({
+        message:
+          '"toCase" query param is required. Correct request is: "/<TEXT_TO_CONVERT>?toCase=<CASE_NAME>".',
+      });
+    } else if (!SUPPORTED_CASES.includes(toCase)) {
+      errors.push({
+        message:
+          'This case is not supported. Available cases: SNAKE, KEBAB, CAMEL, PASCAL, UPPER.',
+      });
+    }
+
+    // Zwracanie błędów, jeśli jakiekolwiek wystąpiły (kod 400)
+    if (errors.length > 0) {
+      res.statusCode = 400;
+      res.statusMessage = 'Bad request';
+      res.end(JSON.stringify({ errors }));
+
+      return;
+    }
+
+    // Sukces - wykonanie logiki biznesowej i zwrócenie wyniku (kod 200)
+    try {
+      const { originalCase, convertedText } = convertToCase(
+        textToConvert,
+        toCase,
+      );
+
+      const responseData = {
+        originalCase,
+        targetCase: toCase,
+        originalText: textToConvert,
+        convertedText,
+      };
+
+      res.statusCode = 200;
+      res.statusMessage = 'OK';
+      res.end(JSON.stringify(responseData));
+    } catch (error) {
+      // Obsługa niespodziewanych błędów po stronie serwera
+      res.statusCode = 500;
+      res.end(JSON.stringify({ errors: [{ message: error.message }] }));
+    }
+  });
+}
+
+module.exports = {
+  createServer,
+};