Added dotenv component to define env vars in local file

.env.dist

@@ -0,0 +1,7 @@
+# Application
+APP_ENV=
+
+# Database
+DB_USER=
+DB_PASSWORD=
+DB_NAME=

.gitignore

@@ -1,3 +1,4 @@
 build
 composer.lock
 vendor/
+.env

composer.json

@@ -27,7 +27,8 @@
         "squizlabs/php_codesniffer": "^2.3",
         "roave/security-advisories": "dev-master",
         "filp/whoops": "^2.0",
-        "symfony/var-dumper": "^3.0"
+        "symfony/var-dumper": "^3.0",
+        "vlucas/phpdotenv": "^2.2"
     },
     "autoload": {
         "psr-4": {

config/autoload/database.global.php

@@ -0,0 +1,15 @@
+<?php
+return [
+
+    'database' => [
+        'driver' => 'pdo_mysql',
+        'user' => getenv('DB_USER'),
+        'password' => getenv('DB_PASSWORD'),
+        'dbname' => getenv('DB_NAME') ?: 'acelaya_url_shortener',
+        'charset' => 'utf8',
+        'driverOptions' => [
+            PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES utf8'
+        ],
+    ],
+
+];

config/autoload/database.local.php.dist

@@ -1,15 +0,0 @@
-<?php
-return [
-
-    'database' => [
-        'driver' => 'pdo_mysql',
-        'user' => '',
-        'password' => '',
-        'dbname' => '',
-        'charset' => 'utf-8',
-        'driverOptions' => [
-            PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES utf8'
-        ],
-    ]
-
-];

config/autoload/services.global.php

@@ -1,7 +1,9 @@
 <?php
+use Acelaya\UrlShortener\Factory\CacheFactory;
 use Acelaya\UrlShortener\Factory\EntityManagerFactory;
 use Acelaya\UrlShortener\Service\UrlShortener;
 use Acelaya\ZsmAnnotatedServices\Factory\V3\AnnotatedFactory;
+use Doctrine\Common\Cache\Cache;
 use Doctrine\ORM\EntityManager;
 use Zend\Expressive\Application;
 use Zend\Expressive\Container;
@@ -14,19 +16,16 @@ use Zend\ServiceManager\Factory\InvokableFactory;
 return [
 
     'services' => [
-        'invokables' => [
-            Helper\ServerUrlHelper::class,
-            Router\AuraRouter::class,
-        ],
         'factories' => [
             Application::class => Container\ApplicationFactory::class,
 
-            // Url helpers
+            // Routes
             Helper\UrlHelper::class => Helper\UrlHelperFactory::class,
             Helper\ServerUrlMiddleware::class => Helper\ServerUrlMiddlewareFactory::class,
             Helper\UrlHelperMiddleware::class => Helper\UrlHelperMiddlewareFactory::class,
             Helper\ServerUrlHelper::class => InvokableFactory::class,
             Router\RouterInterface::class => InvokableFactory::class,
+            Router\AuraRouter::class => InvokableFactory::class,
 
             // View
             'Zend\Expressive\FinalHandler' => Container\TemplatedErrorHandlerFactory::class,
@@ -36,6 +35,7 @@ return [
             EntityManager::class => EntityManagerFactory::class,
             GuzzleHttp\Client::class => InvokableFactory::class,
             UrlShortener::class => AnnotatedFactory::class,
+            Cache::class => CacheFactory::class,
         ],
         'aliases' => [
             'em' => EntityManager::class,

config/container.php

@@ -1,11 +1,19 @@
 <?php
-use Zend\Expressive\Application;
+use Dotenv\Dotenv;
 use Zend\ServiceManager\ServiceManager;
 
 chdir(dirname(__DIR__));
 
 require 'vendor/autoload.php';
 
+// If the Dotenv class exists, load env vars and enable errors
+if (class_exists(Dotenv::class)) {
+    error_reporting(E_ALL);
+    ini_set('display_errors', 1);
+    $dotenv = new Dotenv(__DIR__ . '/..');
+    $dotenv->load();
+}
+
 // Build container
 $config = require __DIR__ . '/config.php';
 $container = new ServiceManager($config['services']);

src/Factory/CacheFactory.php

@@ -0,0 +1,30 @@
+<?php
+namespace Acelaya\UrlShortener\Factory;
+
+use Doctrine\Common\Cache\ApcuCache;
+use Doctrine\Common\Cache\ArrayCache;
+use Interop\Container\ContainerInterface;
+use Interop\Container\Exception\ContainerException;
+use Zend\ServiceManager\Exception\ServiceNotCreatedException;
+use Zend\ServiceManager\Exception\ServiceNotFoundException;
+use Zend\ServiceManager\Factory\FactoryInterface;
+
+class CacheFactory implements FactoryInterface
+{
+    /**
+     * Create an object
+     *
+     * @param  ContainerInterface $container
+     * @param  string $requestedName
+     * @param  null|array $options
+     * @return object
+     * @throws ServiceNotFoundException if unable to resolve the service.
+     * @throws ServiceNotCreatedException if an exception is raised when
+     *     creating a service.
+     * @throws ContainerException if any other error occurs
+     */
+    public function __invoke(ContainerInterface $container, $requestedName, array $options = null)
+    {
+        return getenv('APP_ENV') === 'pro' ? new ApcuCache() : new ArrayCache();
+    }
+}