#9 Logger setup

.gitignore

@@ -10,3 +10,6 @@ composer.lock
 /var/cache/*
 !/var/cache/.gitkeep
 
+# Logs
+/var/log/*
+!/var/log/.gitkeep

composer.json

@@ -14,7 +14,8 @@
         "nyholm/psr7": "^1.8",
         "nyholm/psr7-server": "^1.1",
         "guzzlehttp/psr7": "^2",
-        "php-di/slim-bridge": "^3.4"
+        "php-di/slim-bridge": "^3.4",
+        "monolog/monolog": "^3.9"
     },
     "require-dev": {
         "phpstan/phpstan": "^2.1",

config/php-cs-fixer.php

@@ -19,8 +19,8 @@ return $config
         'ternary_to_null_coalescing' => true,
         'concat_space' => ['spacing' => 'one'],
     ])
-    ->setCacheFile('/app/var/cache/php-cs-fixer.cache')
+    ->setCacheFile(__DIR__ . '/../var/cache/php-cs-fixer.cache')
     ->setFinder(PhpCsFixer\Finder::create()
-        ->in('/app/src')
-        ->in('/app/tests')
+        ->in(__DIR__ . '/../src')
+        ->in(__DIR__ . '/../tests')
     );

config/phpunit.xml

@@ -1,12 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:noNamespaceSchemaLocation="./vendor/phpunit/phpunit/phpunit.xsd"
-         bootstrap="../vendor/autoload.php"
-         colors="true"
+        xsi:noNamespaceSchemaLocation="./vendor/phpunit/phpunit/phpunit.xsd"
+        bootstrap="../vendor/autoload.php"
+        cacheResultFile="../var/cache/phpunit.cache"
+        colors="true"
 >
     <testsuites>
         <testsuite name="Application Test Suite">
-            <directory suffix="Test.php">/app/tests</directory>
+            <directory suffix="Test.php">../tests</directory>
         </testsuite>
     </testsuites>
 </phpunit>

src/Infrastructure/Boot/bootstrap.php

@@ -3,12 +3,22 @@
 declare(strict_types=1);
 
 use DI\Bridge\Slim\Bridge;
+use DI\Container;
 use DI\ContainerBuilder;
 use Psr\Container\ContainerInterface;
 use Slim\App;
 
 return function (): App {
     $containerBuilder = new ContainerBuilder();
+
+    /**
+     * Bind dependencies.
+     *
+     * @var callable(ContainerBuilder<Container>):void $dependencies
+     * */
+    $dependencies = require __DIR__ . '/dependencies.php';
+    $dependencies($containerBuilder);
+
     $container = $containerBuilder->build();
 
     /** @var App<ContainerInterface> $app */

src/Infrastructure/Boot/dependencies.php

@@ -0,0 +1,23 @@
+<?php
+
+declare(strict_types=1);
+
+use DI\ContainerBuilder;
+use Monolog\Handler\RotatingFileHandler;
+use Monolog\Logger;
+use Monolog\Processor\UidProcessor;
+use Psr\Container\ContainerInterface;
+use Psr\Log\LoggerInterface;
+
+return function (ContainerBuilder $builder): void {
+    $builder->addDefinitions([
+        LoggerInterface::class => function (ContainerInterface $container) {
+            $logger = new Logger('app');
+
+            $logger->pushProcessor(new UidProcessor());
+            $logger->pushHandler(new RotatingFileHandler(__DIR__ . '/../var/log/app.log', 7, Logger::WARNING));
+
+            return $logger;
+        },
+    ]);
+};