diff --git a/public/index.php b/public/index.php
index 9aa262b..6e0d681 100644
--- a/public/index.php
+++ b/public/index.php
@@ -11,37 +11,19 @@
 
 declare(strict_types=1);
 
-use Dotenv\Dotenv;
 use Dotenv\Exception\InvalidPathException;
 use Komarev\GitHubProfileViewsCounter\BadgeImageRendererService;
-use Komarev\GitHubProfileViewsCounter\CounterFileRepository;
-use Komarev\GitHubProfileViewsCounter\CounterPdoRepository;
+use Komarev\GitHubProfileViewsCounter\CounterRepositoryFactory;
 use Komarev\GitHubProfileViewsCounter\Username;
 
-$basePath = realpath(__DIR__ . '/..');
+$appBasePath = realpath(__DIR__ . '/..');
 
-// Register The Auto Loader
-require $basePath . '/vendor/autoload.php';
-
-const REPOSITORY_TYPE_FILE = 'file';
-const REPOSITORY_TYPE_PDO = 'pdo';
-
-header('Content-Type: image/svg+xml');
-header('Cache-Control: max-age=0, no-cache, no-store, must-revalidate');
-
-$badgeImageRenderer = new BadgeImageRendererService();
+require $appBasePath . '/vendor/autoload.php';
 
 array_walk_recursive($_GET, function (&$input) {
     $input = htmlspecialchars($input, ENT_NOQUOTES, 'UTF-8', false);
 });
 
-$httpUserAgent = $_SERVER['HTTP_USER_AGENT'] ?? '';
-$badgeLabel = $_GET['label'] ?? 'Profile views';
-$badgeMessageBackgroundFill = $_GET['color'] ?? 'blue';
-$badgeStyle = $_GET['style'] ?? 'flat';
-if (!in_array($badgeStyle, ['flat', 'flat-square', 'plastic', 'for-the-badge'])) {
-    $badgeStyle = 'flat';
-}
 $username = $_GET['username'] ?? '';
 $username = trim($username);
 
@@ -50,92 +32,52 @@ if ($username === '') {
     exit;
 }
 
+$httpUserAgent = $_SERVER['HTTP_USER_AGENT'] ?? '';
+$isGitHubUserAgent = strpos($httpUserAgent, 'github-camo') === 0;
+
+$badgeLabel = $_GET['label'] ?? 'Profile views';
+$badgeMessageBackgroundFill = $_GET['color'] ?? 'blue';
+$badgeStyle = $_GET['style'] ?? 'flat';
+if (!in_array($badgeStyle, ['flat', 'flat-square', 'plastic', 'for-the-badge', 'pixel'])) {
+    $badgeStyle = 'flat';
+}
+
+header('Content-Type: image/svg+xml');
+header('Cache-Control: max-age=0, no-cache, no-store, must-revalidate');
+
+$badgeImageRenderer = new BadgeImageRendererService();
+
 try {
-    $dotEnv = Dotenv::createImmutable($basePath);
-    $dotEnv->load();
-
-    $dotEnv->required([
-        'REPOSITORY',
-    ]);
-
-    $repositoryType = $_ENV['REPOSITORY'];
-
-    switch ($repositoryType) {
-        case REPOSITORY_TYPE_PDO:
-            $dotEnv->required([
-                'DB_DRIVER',
-                'DB_HOST',
-                'DB_PORT',
-                'DB_USER',
-                'DB_PASSWORD',
-                'DB_NAME',
-            ]);
-
-            $dsn = sprintf(
-                '%s:host=%s;port=%d;dbname=%s',
-                $_ENV['DB_DRIVER'],
-                $_ENV['DB_HOST'],
-                $_ENV['DB_PORT'],
-                $_ENV['DB_NAME']
-            );
-            $dbConnection = new PDO(
-                $dsn,
-                $_ENV['DB_USER'],
-                $_ENV['DB_PASSWORD'],
-                [
-                    PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
-                ],
-            );
-
-            $counterRepository = new CounterPdoRepository($dbConnection);
-            break;
-        case REPOSITORY_TYPE_FILE:
-            if (!isset($_ENV['FILE_STORAGE_PATH']) || $_ENV['FILE_STORAGE_PATH'] === '') {
-                $storagePath = $basePath . '/storage';
-            } else {
-                $storagePath = $_ENV['FILE_STORAGE_PATH'];
-            }
-
-            $counterRepository = new CounterFileRepository($storagePath);
-            break;
-        default:
-            throw new \Exception(
-                "Unsupported repository `$repositoryType`",
-            );
-    }
+    $counterRepository = (new CounterRepositoryFactory())->create($appBasePath);
 
     $username = new Username($username);
 
-    if (strpos($httpUserAgent, 'github-camo') === 0) {
+    if ($isGitHubUserAgent) {
         $counterRepository->addViewByUsername($username);
     }
 
     if ($badgeStyle === 'pixel') {
         echo $badgeImageRenderer->renderPixel();
-        exit;
+    } else {
+        $count = $counterRepository->getViewsCountByUsername($username);
+
+        echo $badgeImageRenderer->renderBadgeWithCount(
+            $badgeLabel,
+            $count,
+            $badgeMessageBackgroundFill,
+            $badgeStyle,
+        );
     }
-
-    $count = $counterRepository->getViewsCountByUsername($username);
-
-    echo $badgeImageRenderer->renderBadgeWithCount(
-        $badgeLabel,
-        $count,
-        $badgeMessageBackgroundFill,
-        $badgeStyle,
-    );
-    exit;
 } catch (InvalidPathException $exception) {
     echo $badgeImageRenderer->renderBadgeWithError(
         $badgeLabel,
         'Application environment file is missing',
         $badgeStyle,
     );
-    exit;
 } catch (Exception $exception) {
     echo $badgeImageRenderer->renderBadgeWithError(
         $badgeLabel,
         $exception->getMessage(),
         $badgeStyle,
     );
-    exit;
 }
diff --git a/src/CounterRepositoryFactory.php b/src/CounterRepositoryFactory.php
new file mode 100644
index 0000000..f7b3602
--- /dev/null
+++ b/src/CounterRepositoryFactory.php
@@ -0,0 +1,78 @@
+<?php
+
+/*
+ * This file is part of GitHub Profile Views Counter.
+ *
+ * (c) Anton Komarev <anton@komarev.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace Komarev\GitHubProfileViewsCounter;
+
+use Contracts\Komarev\GitHubProfileViewsCounter\CounterRepositoryInterface;
+use Dotenv\Dotenv;
+use PDO;
+
+final class CounterRepositoryFactory
+{
+    public function create(
+        string $appBasePath
+    ): CounterRepositoryInterface {
+        $dotEnv = Dotenv::createImmutable($appBasePath);
+        $env = $dotEnv->load();
+
+        $dotEnv->required([
+            'REPOSITORY',
+        ]);
+
+        $repositoryType = $env['REPOSITORY'];
+
+        switch ($repositoryType) {
+            case 'pdo':
+                $dotEnv->required([
+                    'DB_DRIVER',
+                    'DB_HOST',
+                    'DB_PORT',
+                    'DB_USER',
+                    'DB_PASSWORD',
+                    'DB_NAME',
+                ]);
+
+                $dsn = sprintf(
+                    '%s:host=%s;port=%d;dbname=%s',
+                    $env['DB_DRIVER'],
+                    $env['DB_HOST'],
+                    $env['DB_PORT'],
+                    $env['DB_NAME'],
+                );
+                $dbConnection = new PDO(
+                    $dsn,
+                    $env['DB_USER'],
+                    $env['DB_PASSWORD'],
+                    [
+                        PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
+                    ],
+                );
+
+                return new CounterPdoRepository($dbConnection);
+            case 'file':
+                $dotEnv->required([
+                    'FILE_STORAGE_PATH',
+                ]);
+
+                $storagePath = $env['FILE_STORAGE_PATH'] !== ''
+                    ? $env['FILE_STORAGE_PATH']
+                    : $appBasePath . '/storage';
+
+                return new CounterFileRepository($storagePath);
+            default:
+                throw new \Exception(
+                    "Unsupported repository `$repositoryType`",
+                );
+        }
+    }
+}