add solution

.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 @@
   "devDependencies": {
     "@faker-js/faker": "^8.4.1",
     "@mate-academy/eslint-config": "latest",
-    "@mate-academy/scripts": "^1.8.6",
+    "@mate-academy/scripts": "^2.1.2",
     "axios": "^1.7.2",
     "eslint": "^8.57.0",
     "eslint-plugin-jest": "^28.6.0",

public/text.txt

@@ -0,0 +1 @@
+Hello world

src/createServer.js

@@ -1,8 +1,128 @@
+/* eslint-disable no-useless-return */
 'use strict';
 
+const http = require('http');
+const fs = require('fs');
+const path = require('path');
+const zlib = require('zlib');
+const formidable = require('formidable');
+
 function createServer() {
-  /* Write your code here */
-  // Return instance of http.Server class
+  const server = new http.Server();
+
+  server.on('request', (req, res) => {
+    const url = new URL(req.url, `http://${req.headers.host}`);
+
+    if (url.pathname === '/compress') {
+      if (req.method === 'GET') {
+        res.statusCode = 400;
+        res.end('GET method not allowed for /compress');
+
+        return;
+      }
+
+      if (req.method === 'POST') {
+        const form = new formidable.IncomingForm();
+
+        form.parse(req, (err, fields, files) => {
+          if (err) {
+            res.statusCode = 400;
+            res.end('Invalid form data');
+
+            return;
+          }
+
+          const file = files.file ? files.file[0] : null;
+          const compressionType = fields.compressionType
+            ? fields.compressionType[0]
+            : null;
+
+          if (!file || !compressionType) {
+            res.statusCode = 400;
+            res.end('Missing file or compression type');
+
+            return;
+          }
+
+          const supportedTypes = {
+            gzip: zlib.createGzip,
+            deflate: zlib.createDeflate,
+            br: zlib.createBrotliCompress,
+          };
+
+          if (!supportedTypes[compressionType]) {
+            res.statusCode = 400;
+            res.end('Unsupported compression type');
+
+            return;
+          }
+
+          const originalFileName = file.originalFilename;
+          const extensionMap = {
+            gzip: 'gz',
+            deflate: 'dfl',
+            br: 'br',
+          };
+
+          const compressedFileName = `${originalFileName}.${extensionMap[compressionType]}`;
+
+          res.statusCode = 200;
+
+          res.setHeader(
+            'Content-Disposition',
+            `attachment; filename=${compressedFileName}`,
+          );
+
+          const fileStream = fs.createReadStream(file.filepath);
+          const compressionStream = supportedTypes[compressionType]();
+
+          fileStream.on('error', () => {
+            res.statusCode = 500;
+            res.end('Server error');
+          });
+
+          compressionStream.on('error', () => {
+            res.statusCode = 500;
+            res.end('Compression error');
+          });
+
+          fileStream.pipe(compressionStream).pipe(res);
+
+          res.on('close', () => {
+            fileStream.destroy();
+            compressionStream.destroy();
+          });
+        });
+
+        return;
+      }
+    }
+
+    const fileName = url.pathname.slice(1) || 'index.html';
+    const filePath = path.resolve('src', fileName);
+
+    if (!fs.existsSync(filePath)) {
+      res.statusCode = 404;
+      res.end('File not found');
+
+      return;
+    }
+
+    const fStream = fs.createReadStream(filePath);
+
+    fStream.pipe(res);
+
+    fStream.on('error', () => {
+      res.statusCode = 500;
+      res.end('Server error');
+    });
+
+    res.on('close', () => fStream.destroy());
+  });
+
+  server.on('error', () => {});
+
+  return server;
 }
 
 module.exports = {

src/index.html

@@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Compression App</title>
+</head>
+<body>
+    <h1>File Compression</h1>
+
+    <form action="/compress" method="POST" enctype="multipart/form-data">
+
+        <div>
+            <label for="file">Select file:</label>
+            <input type="file" name="file" id="file" required>
+        </div>
+        <br>
+
+        <div>
+            <label for="compressionType">Compression Type:</label>
+            <select name="compressionType" id="compressionType">
+                <option value="gzip">gzip</option>
+                <option value="deflate">deflate</option>
+                <option value="br">br</option>
+            </select>
+        </div>
+        <br>
+
+        <button type="submit">Compress File</button>
+    </form>
+
+</body>
+</html>