Initial commit

src/Infrastructure/API/App.php

@@ -0,0 +1,107 @@
+<?php
+
+namespace OpenCCK\Infrastructure\API;
+
+use Amp\ByteStream\WritableResourceStream;
+use Amp\Log\ConsoleFormatter;
+use Amp\Log\StreamHandler;
+
+use Revolt\EventLoop;
+use Revolt\EventLoop\UnsupportedFeatureException;
+
+use Closure;
+use Dotenv\Dotenv;
+use Monolog\Logger;
+use Psr\Log\LogLevel;
+
+use function Amp\trapSignal;
+use function OpenCCK\getEnv;
+use function sprintf;
+
+final class App {
+    private static App $_instance;
+
+    /**
+     * @param array<AppModuleInterface> $modules
+     */
+    private array $modules = [];
+
+    private bool $isEventLoopStarted = false;
+
+    /**
+     * @param ?Logger $logger
+     */
+    private function __construct(private ?Logger $logger = null) {
+        ini_set('memory_limit', getEnv('SYS_MEMORY_LIMIT') ?? '2048M');
+
+        if (!defined('PATH_ROOT')) {
+            define('PATH_ROOT', dirname(__DIR__, 3));
+        }
+
+        $dotenv = Dotenv::createImmutable(PATH_ROOT);
+        $dotenv->safeLoad();
+
+        if ($timezone = getEnv('SYS_TIMEZONE')) {
+            date_default_timezone_set($timezone);
+        }
+
+        $this->logger = $logger ?? new Logger(getEnv('COMPOSE_PROJECT_NAME') ?? 'iplist');
+        $logHandler = new StreamHandler(new WritableResourceStream(STDOUT));
+        $logHandler->setFormatter(new ConsoleFormatter());
+        $logHandler->setLevel(getEnv('DEBUG') === 'false' ? LogLevel::INFO : LogLevel::DEBUG);
+        $this->logger->pushHandler($logHandler);
+
+        EventLoop::setErrorHandler(function ($e) {
+            $this->logger->error($e->getMessage());
+        });
+    }
+
+    public static function getInstance(?Logger $logger = null): self {
+        return self::$_instance ??= new self($logger);
+    }
+
+    /**
+     * @param Closure<AppModuleInterface> $handler
+     * @return $this
+     */
+    public function addModule(Closure $handler): self {
+        $module = $handler($this);
+        $this->modules[$module::class] = $module;
+        return $this;
+    }
+
+    public function getModules(): array {
+        return $this->modules;
+    }
+
+    public static function getLogger(): ?Logger {
+        return self::$_instance->logger;
+    }
+
+    public function start(): void {
+        foreach ($this->getModules() as $module) {
+            $module->start();
+        }
+        if (defined('SIGINT') && defined('SIGTERM')) {
+            // Await SIGINT or SIGTERM to be received.
+            try {
+                $signal = trapSignal([SIGINT, SIGTERM]);
+                $this->logger->info(sprintf('Received signal %d, stopping server', $signal));
+            } catch (UnsupportedFeatureException $e) {
+                $this->logger->error($e->getMessage());
+            }
+            $this->stop();
+        } else {
+            if (!$this->isEventLoopStarted && !defined('PHPUNIT_COMPOSER_INSTALL')) {
+                $this->isEventLoopStarted = true;
+                EventLoop::run();
+            }
+        }
+    }
+
+    public function stop(): void {
+        foreach ($this->modules as $module) {
+            $module->stop();
+        }
+    }
+}