asdf

implementation/14-middleware/.php-cs-fixer.php

@@ -0,0 +1,38 @@
+<?php declare(strict_types=1);
+/*
+ * This document has been generated with
+ * https://mlocati.github.io/php-cs-fixer-configurator/#version:3.1.0|configurator
+ * you can change this configuration by importing this file.
+ */
+$config = new PhpCsFixer\Config();
+return $config
+    ->setRiskyAllowed(true)
+    ->setRules([
+        '@PSR12:risky' => true,
+        '@PSR12' => true,
+        '@PHP80Migration' => true,
+        '@PHP80Migration:risky' => true,
+        '@PHP81Migration' => true,
+        'array_indentation' => true,
+        'include' => true,
+        'blank_line_after_opening_tag' => false,
+        'native_constant_invocation' => true,
+        'new_with_braces' => false,
+        'native_function_invocation' => [
+            'include' => ['@all']
+        ],
+        'no_unused_imports' => true,
+        'global_namespace_import' => [
+            'import_classes' => true,
+            'import_constants' => true,
+            'import_functions' => true,
+        ],
+        'ordered_interfaces' => true,
+    ])
+    ->setFinder(
+        PhpCsFixer\Finder::create()
+            ->in([
+                __DIR__ . '/src',
+                __DIR__ . '/config'
+            ])
+    );

implementation/14-middleware/.phpcs.xml.dist

@@ -0,0 +1,9 @@
+<?xml version="1.0"?>
+<ruleset>
+    <arg name="basepath" value="."/>
+
+    <file>src</file>
+    <file>config</file>
+
+    <rule ref="HardMode"/>
+</ruleset>

implementation/14-middleware/composer.json

@@ -0,0 +1,50 @@
+{
+  "name": "lubian/no-framework",
+  "require": {
+    "php": "^8.1",
+    "filp/whoops": "^2.14",
+    "laminas/laminas-diactoros": "^2.8",
+    "nikic/fast-route": "^1.3",
+    "psr/http-server-handler": "^1.0",
+    "php-di/php-di": "^6.3",
+    "mustache/mustache": "^2.14",
+    "psr/http-server-middleware": "^1.0",
+    "middlewares/trailing-slash": "^2.0",
+    "middlewares/whoops": "^2.0"
+  },
+  "autoload": {
+    "psr-4": {
+      "Lubian\\NoFramework\\": "src/"
+    }
+  },
+  "authors": [
+    {
+      "name": "lubian",
+      "email": "test@example.com"
+    }
+  ],
+  "require-dev": {
+    "phpstan/phpstan": "^1.5",
+    "php-cs-fixer/shim": "^3.8",
+    "symfony/var-dumper": "^6.0",
+    "squizlabs/php_codesniffer": "^3.6",
+    "phpstan/extension-installer": "^1.1",
+    "phpstan/phpstan-strict-rules": "^1.1",
+    "thecodingmachine/phpstan-strict-rules": "^1.0",
+    "mnapoli/hard-mode": "^0.3.0",
+    "psalm/phar": "^4.22"
+  },
+  "config": {
+    "allow-plugins": {
+      "phpstan/extension-installer": true,
+      "dealerdirect/phpcodesniffer-composer-installer": true
+    }
+  },
+  "scripts": {
+    "serve": "php -S 0.0.0.0:1234 -t public",
+    "phpstan": "./vendor/bin/phpstan analyze",
+    "baseline": "./vendor/bin/phpstan analyze --generate-baseline",
+    "check": "./vendor/bin/phpcs",
+    "fix": "./vendor/bin/php-cs-fixer fix && ./vendor/bin/phpcbf"
+  }
+}

implementation/14-middleware/config/dependencies.php

@@ -0,0 +1,42 @@
+<?php declare(strict_types=1);
+
+use FastRoute\Dispatcher;
+use Laminas\Diactoros\ResponseFactory;
+use Lubian\NoFramework\Factory\DiactorosRequestFactory;
+use Lubian\NoFramework\Factory\PipelineProvider;
+use Lubian\NoFramework\Factory\RequestFactory;
+use Lubian\NoFramework\Http\BasicEmitter;
+use Lubian\NoFramework\Http\Emitter;
+use Lubian\NoFramework\Http\InvokerRoutedHandler;
+use Lubian\NoFramework\Http\Pipeline;
+use Lubian\NoFramework\Http\RoutedRequestHandler;
+use Lubian\NoFramework\Http\RouteMiddleware;
+use Lubian\NoFramework\Service\Time\Now;
+use Lubian\NoFramework\Service\Time\SystemClockNow;
+use Lubian\NoFramework\Settings;
+use Lubian\NoFramework\Template\MustacheRenderer;
+use Lubian\NoFramework\Template\Renderer;
+use Mustache_Engine as ME;
+use Mustache_Loader_FilesystemLoader as MLF;
+use Psr\Http\Message\ResponseFactoryInterface;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\ServerRequestInterface;
+use Psr\Http\Server\MiddlewareInterface;
+
+use function FastRoute\simpleDispatcher;
+
+return [
+    ResponseInterface::class => fn (ResponseFactory $rf) => $rf->createResponse(),
+    ServerRequestInterface::class => fn (RequestFactory $rf) => $rf->fromGlobals(),
+    Now::class => fn (SystemClockNow $n) => $n,
+    Renderer::class => fn (Mustache_Engine $e) => new MustacheRenderer($e),
+    MLF::class => fn (Settings $s) => new MLF($s->templateDir, ['extension' => $s->templateExtension]),
+    ME::class => fn (MLF $mfl) => new ME(['loader' => $mfl]),
+    ResponseFactoryInterface::class => fn (ResponseFactory $rf) => $rf,
+    Emitter::class => fn (BasicEmitter $e) => $e,
+    RoutedRequestHandler::class => fn (InvokerRoutedHandler $h) => $h,
+    MiddlewareInterface::class => fn (RouteMiddleware $r) => $r,
+    Dispatcher::class => fn () => simpleDispatcher(require __DIR__ . '/routes.php'),
+    RequestFactory::class => fn (DiactorosRequestFactory $rf) => $rf,
+    Pipeline::class => fn (PipelineProvider $p) => $p->getPipeline(),
+];

implementation/14-middleware/config/middlewares.php

@@ -0,0 +1,11 @@
+<?php declare(strict_types=1);
+
+use Lubian\NoFramework\Http\RouteMiddleware;
+use Middlewares\TrailingSlash;
+use Middlewares\Whoops;
+
+return [
+    Whoops::class,
+    TrailingSlash::class,
+    RouteMiddleware::class,
+];

implementation/14-middleware/config/routes.php

@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+use FastRoute\RouteCollector;
+use Lubian\NoFramework\Action\Hello;
+use Lubian\NoFramework\Action\Other;
+use Psr\Http\Message\ResponseInterface as Response;
+
+return function (RouteCollector $r): void {
+    $r->addRoute('GET', '/hello[/{name}]', Hello::class);
+    $r->addRoute('GET', '/another-route', [Other::class, 'someFunctionName']);
+    $r->addRoute('GET', '/', fn (Response $r) => $r->withStatus(302)->withHeader('Location', '/hello'));
+};

implementation/14-middleware/config/settings.php

@@ -0,0 +1,11 @@
+<?php declare(strict_types=1);
+
+use Lubian\NoFramework\Settings;
+
+return new Settings(
+    environment: 'dev',
+    dependenciesFile: __DIR__ . '/dependencies.php',
+    middlewaresFile: __DIR__ . '/middlewares.php',
+    templateDir: __DIR__ . '/../templates',
+    templateExtension: '.html',
+);

implementation/14-middleware/phpstan-baseline.neon

@@ -0,0 +1,7 @@
+parameters:
+	ignoreErrors:
+		-
+			message: "#^Parameter \\#1 \\$callable of method Invoker\\\\InvokerInterface\\:\\:call\\(\\) expects array\\|\\(callable\\(\\)\\: mixed\\)\\|string, mixed given\\.$#"
+			count: 1
+			path: src/Http/InvokerRoutedHandler.php
+

implementation/14-middleware/phpstan.neon

@@ -0,0 +1,8 @@
+includes:
+    - phpstan-baseline.neon
+
+parameters:
+    level: max
+    paths:
+        - src
+        - config

implementation/14-middleware/public/index.php

@@ -0,0 +1,5 @@
+<?php
+
+declare(strict_types=1);
+
+require __DIR__ . '/../src/Bootstrap.php';

implementation/14-middleware/src/Action/Hello.php

@@ -0,0 +1,31 @@
+<?php declare(strict_types=1);
+
+namespace Lubian\NoFramework\Action;
+
+use Lubian\NoFramework\Service\Time\Now;
+use Lubian\NoFramework\Template\Renderer;
+use Psr\Http\Message\ResponseInterface;
+
+final class Hello
+{
+    public function __invoke(
+        ResponseInterface $response,
+        Now $now,
+        Renderer $renderer,
+        string $name = 'Stranger',
+    ): ResponseInterface {
+        $body = $response->getBody();
+        $data = [
+            'now' => $now()->format('H:i:s'),
+            'name' => $name,
+        ];
+
+        $content = $renderer->render('hello', $data);
+
+        $body->write($content);
+
+        return $response
+            ->withStatus(200)
+            ->withBody($body);
+    }
+}

implementation/14-middleware/src/Action/Other.php

@@ -0,0 +1,19 @@
+<?php declare(strict_types=1);
+
+namespace Lubian\NoFramework\Action;
+
+use Psr\Http\Message\ResponseInterface;
+
+final class Other
+{
+    public function someFunctionName(ResponseInterface $response): ResponseInterface
+    {
+        $body = $response->getBody();
+
+        $body->write('This works too!');
+
+        return $response
+            ->withStatus(200)
+            ->withBody($body);
+    }
+}

implementation/14-middleware/src/Bootstrap.php

@@ -0,0 +1,40 @@
+<?php declare(strict_types=1);
+
+namespace Lubian\NoFramework;
+
+use Lubian\NoFramework\Factory\FileSystemSettingsProvider;
+use Lubian\NoFramework\Factory\SettingsContainerProvider;
+use Throwable;
+use Whoops\Handler\PrettyPageHandler;
+use Whoops\Run;
+
+use function assert;
+use function error_log;
+use function error_reporting;
+
+use const E_ALL;
+
+require __DIR__ . '/../vendor/autoload.php';
+
+error_reporting(E_ALL);
+
+$settingsProvider = new FileSystemSettingsProvider(__DIR__ . '/../config/settings.php');
+$container = (new SettingsContainerProvider($settingsProvider))->getContainer();
+
+$settings = $settingsProvider->getSettings();
+
+$whoops = new Run;
+if ($settings->environment === 'dev') {
+    $whoops->pushHandler(new PrettyPageHandler);
+} else {
+    $whoops->pushHandler(function (Throwable $e): void {
+        error_log('Error: ' . $e->getMessage(), (int) $e->getCode());
+        echo 'An Error happened';
+    });
+}
+$whoops->register();
+
+$app = $container->get(Kernel::class);
+assert($app instanceof Kernel);
+
+$app->run();

implementation/14-middleware/src/Exception/InternalServerError.php

@@ -0,0 +1,9 @@
+<?php declare(strict_types=1);
+
+namespace Lubian\NoFramework\Exception;
+
+use Exception;
+
+final class InternalServerError extends Exception
+{
+}

implementation/14-middleware/src/Exception/MethodNotAllowed.php

@@ -0,0 +1,9 @@
+<?php declare(strict_types=1);
+
+namespace Lubian\NoFramework\Exception;
+
+use Exception;
+
+final class MethodNotAllowed extends Exception
+{
+}

implementation/14-middleware/src/Exception/NotFound.php

@@ -0,0 +1,9 @@
+<?php declare(strict_types=1);
+
+namespace Lubian\NoFramework\Exception;
+
+use Exception;
+
+final class NotFound extends Exception
+{
+}

implementation/14-middleware/src/Factory/ContainerProvider.php

@@ -0,0 +1,10 @@
+<?php declare(strict_types=1);
+
+namespace Lubian\NoFramework\Factory;
+
+use Psr\Container\ContainerInterface;
+
+interface ContainerProvider
+{
+    public function getContainer(): ContainerInterface;
+}

implementation/14-middleware/src/Factory/DiactorosRequestFactory.php

@@ -0,0 +1,28 @@
+<?php declare(strict_types=1);
+
+namespace Lubian\NoFramework\Factory;
+
+use Laminas\Diactoros\ServerRequestFactory;
+use Psr\Http\Message\ServerRequestInterface;
+use Psr\Http\Message\UriInterface;
+
+final class DiactorosRequestFactory implements RequestFactory
+{
+    public function __construct(private readonly ServerRequestFactory $factory)
+    {
+    }
+
+    public function fromGlobals(): ServerRequestInterface
+    {
+        return $this->factory::fromGlobals();
+    }
+
+    /**
+     * @param UriInterface|string $uri
+     * @param array<mixed> $serverParams
+     */
+    public function createServerRequest(string $method, $uri, array $serverParams = []): ServerRequestInterface
+    {
+        return $this->factory->createServerRequest($method, $uri, $serverParams);
+    }
+}

implementation/14-middleware/src/Factory/FileSystemSettingsProvider.php

@@ -0,0 +1,22 @@
+<?php declare(strict_types=1);
+
+namespace Lubian\NoFramework\Factory;
+
+use Lubian\NoFramework\Settings;
+
+use function assert;
+
+final class FileSystemSettingsProvider implements SettingsProvider
+{
+    public function __construct(
+        private string $filePath
+    ) {
+    }
+
+    public function getSettings(): Settings
+    {
+        $settings = require $this->filePath;
+        assert($settings instanceof Settings);
+        return $settings;
+    }
+}

implementation/14-middleware/src/Factory/PipelineProvider.php

@@ -0,0 +1,25 @@
+<?php declare(strict_types=1);
+
+namespace Lubian\NoFramework\Factory;
+
+use Lubian\NoFramework\Http\ContainerPipeline;
+use Lubian\NoFramework\Http\Pipeline;
+use Lubian\NoFramework\Http\RoutedRequestHandler;
+use Lubian\NoFramework\Settings;
+use Psr\Container\ContainerInterface;
+
+class PipelineProvider
+{
+    public function __construct(
+        private Settings $settings,
+        private RoutedRequestHandler $tip,
+        private ContainerInterface $container,
+    ) {
+    }
+
+    public function getPipeline(): Pipeline
+    {
+        $middlewares = require $this->settings->middlewaresFile;
+        return new ContainerPipeline($middlewares, $this->tip, $this->container);
+    }
+}

implementation/14-middleware/src/Factory/RequestFactory.php

@@ -0,0 +1,11 @@
+<?php declare(strict_types=1);
+
+namespace Lubian\NoFramework\Factory;
+
+use Psr\Http\Message\ServerRequestFactoryInterface;
+use Psr\Http\Message\ServerRequestInterface;
+
+interface RequestFactory extends ServerRequestFactoryInterface
+{
+    public function fromGlobals(): ServerRequestInterface;
+}

implementation/14-middleware/src/Factory/SettingsContainerProvider.php

@@ -0,0 +1,25 @@
+<?php declare(strict_types=1);
+
+namespace Lubian\NoFramework\Factory;
+
+use DI\ContainerBuilder;
+use Lubian\NoFramework\Settings;
+use Psr\Container\ContainerInterface;
+
+final class SettingsContainerProvider implements ContainerProvider
+{
+    public function __construct(
+        private SettingsProvider $settingsProvider,
+    ) {
+    }
+
+    public function getContainer(): ContainerInterface
+    {
+        $builder = new ContainerBuilder;
+        $settings = $this->settingsProvider->getSettings();
+        $dependencies = require $settings->dependenciesFile;
+        $dependencies[Settings::class] = fn (): Settings => $settings;
+        $builder->addDefinitions($dependencies);
+        return $builder->build();
+    }
+}

implementation/14-middleware/src/Factory/SettingsProvider.php

@@ -0,0 +1,10 @@
+<?php declare(strict_types=1);
+
+namespace Lubian\NoFramework\Factory;
+
+use Lubian\NoFramework\Settings;
+
+interface SettingsProvider
+{
+    public function getSettings(): Settings;
+}

implementation/14-middleware/src/Http/BasicEmitter.php

@@ -0,0 +1,38 @@
+<?php declare(strict_types=1);
+
+namespace Lubian\NoFramework\Http;
+
+use Psr\Http\Message\ResponseInterface;
+
+use function header;
+use function sprintf;
+use function strtolower;
+
+final class BasicEmitter implements Emitter
+{
+    public function emit(ResponseInterface $response, bool $withoutBody = false): void
+    {
+        foreach ($response->getHeaders() as $name => $values) {
+            $first = strtolower($name) !== 'set-cookie';
+            foreach ($values as $value) {
+                $header = sprintf('%s: %s', $name, $value);
+                header($header, $first);
+                $first = false;
+            }
+        }
+
+        $statusLine = sprintf(
+            'HTTP/%s %s %s',
+            $response->getProtocolVersion(),
+            $response->getStatusCode(),
+            $response->getReasonPhrase()
+        );
+        header($statusLine, true, $response->getStatusCode());
+
+        if ($withoutBody) {
+            return;
+        }
+
+        echo $response->getBody();
+    }
+}

implementation/14-middleware/src/Http/ContainerPipeline.php

@@ -0,0 +1,82 @@
+<?php declare(strict_types=1);
+
+namespace Lubian\NoFramework\Http;
+
+use Psr\Container\ContainerInterface;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\ServerRequestInterface;
+use Psr\Http\Server\MiddlewareInterface;
+use Psr\Http\Server\RequestHandlerInterface;
+
+use function array_reverse;
+use function assert;
+use function is_string;
+
+class ContainerPipeline implements Pipeline
+{
+    /**
+     * @param array<MiddlewareInterface|class-string> $middlewares
+     * @param RequestHandlerInterface $tip
+     * @param ContainerInterface $container
+     */
+    public function __construct(
+        private array $middlewares,
+        private RequestHandlerInterface $tip,
+        private ContainerInterface $container,
+    ) {
+    }
+
+    public function dispatch(ServerRequestInterface $request): ResponseInterface
+    {
+        $this->buildStack();
+        return $this->tip->handle($request);
+    }
+
+    private function buildStack(): void
+    {
+        foreach (array_reverse($this->middlewares) as $middleware) {
+            $next = $this->tip;
+            if ($middleware instanceof MiddlewareInterface) {
+                $this->tip = $this->wrapMiddleware($middleware, $next);
+            }
+            if (is_string($middleware)) {
+                $this->tip = $this->wrapResolvedMiddleware($middleware, $next);
+            }
+        }
+    }
+
+    private function wrapResolvedMiddleware(string $middleware, RequestHandlerInterface $next): RequestHandlerInterface
+    {
+        return new class ($middleware, $next, $this->container) implements RequestHandlerInterface {
+            public function __construct(
+                private readonly string $middleware,
+                private readonly RequestHandlerInterface $handler,
+                private readonly ContainerInterface $container,
+            ) {
+            }
+
+            public function handle(ServerRequestInterface $request): ResponseInterface
+            {
+                $middleware = $this->container->get($this->middleware);
+                assert($middleware instanceof MiddlewareInterface);
+                return $middleware->process($request, $this->handler);
+            }
+        };
+    }
+
+    private function wrapMiddleware(MiddlewareInterface $middleware, RequestHandlerInterface $next): RequestHandlerInterface
+    {
+        return new class ($middleware, $next) implements RequestHandlerInterface {
+            public function __construct(
+                private readonly MiddlewareInterface $middleware,
+                private readonly RequestHandlerInterface $handler,
+            ) {
+            }
+
+            public function handle(ServerRequestInterface $request): ResponseInterface
+            {
+                return $this->middleware->process($request, $this->handler);
+            }
+        };
+    }
+}

implementation/14-middleware/src/Http/Emitter.php

@@ -0,0 +1,10 @@
+<?php declare(strict_types=1);
+
+namespace Lubian\NoFramework\Http;
+
+use Psr\Http\Message\ResponseInterface;
+
+interface Emitter
+{
+    public function emit(ResponseInterface $response, bool $withoutBody = false): void;
+}

implementation/14-middleware/src/Http/InvokerRoutedHandler.php

@@ -0,0 +1,34 @@
+<?php declare(strict_types=1);
+
+namespace Lubian\NoFramework\Http;
+
+use Invoker\InvokerInterface;
+use Lubian\NoFramework\Exception\InternalServerError;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\ServerRequestInterface;
+
+final class InvokerRoutedHandler implements RoutedRequestHandler
+{
+    public function __construct(
+        private readonly InvokerInterface $invoker,
+        private string $routeAttributeName = '__route_handler',
+    ) {
+    }
+
+    public function handle(ServerRequestInterface $request): ResponseInterface
+    {
+        $handler = $request->getAttribute($this->routeAttributeName, false);
+        $vars = $request->getAttributes();
+        $vars['request'] = $request;
+        $response = $this->invoker->call($handler, $vars);
+        if (! $response instanceof ResponseInterface) {
+            throw new InternalServerError('Handler returned invalid response');
+        }
+        return $response;
+    }
+
+    public function setRouteAttributeName(string $routeAttributeName = '__route_handler'): void
+    {
+        $this->routeAttributeName = $routeAttributeName;
+    }
+}

implementation/14-middleware/src/Http/Pipeline.php

@@ -0,0 +1,11 @@
+<?php declare(strict_types=1);
+
+namespace Lubian\NoFramework\Http;
+
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\ServerRequestInterface;
+
+interface Pipeline
+{
+    public function dispatch(ServerRequestInterface $request): ResponseInterface;
+}

implementation/14-middleware/src/Http/RouteMiddleware.php

@@ -0,0 +1,69 @@
+<?php declare(strict_types=1);
+
+namespace Lubian\NoFramework\Http;
+
+use FastRoute\Dispatcher;
+use Lubian\NoFramework\Exception\InternalServerError;
+use Lubian\NoFramework\Exception\MethodNotAllowed;
+use Lubian\NoFramework\Exception\NotFound;
+use Psr\Http\Message\ResponseFactoryInterface;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\ServerRequestInterface;
+use Psr\Http\Server\MiddlewareInterface;
+use Psr\Http\Server\RequestHandlerInterface;
+use Throwable;
+
+final class RouteMiddleware implements MiddlewareInterface
+{
+    public function __construct(
+        private readonly Dispatcher $dispatcher,
+        private readonly ResponseFactoryInterface $responseFactory,
+        private readonly string $routeAttributeName = '__route_handler',
+    ) {
+    }
+
+    private function decorateRequest(
+        ServerRequestInterface $request,
+    ): ServerRequestInterface {
+        $routeInfo = $this->dispatcher->dispatch(
+            $request->getMethod(),
+            $request->getUri()->getPath(),
+        );
+
+        if ($routeInfo[0] === Dispatcher::METHOD_NOT_ALLOWED) {
+            throw new MethodNotAllowed;
+        }
+
+        if ($routeInfo[0] === Dispatcher::FOUND) {
+            foreach ($routeInfo[2] as $attributeName => $attributeValue) {
+                $request = $request->withAttribute($attributeName, $attributeValue);
+            }
+            return $request->withAttribute(
+                $this->routeAttributeName,
+                $routeInfo[1]
+            );
+        }
+
+        throw new NotFound;
+    }
+
+    public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
+    {
+        try {
+            $request = $this->decorateRequest($request);
+        } catch (NotFound) {
+            $response = $this->responseFactory->createResponse(404);
+            $response->getBody()->write('Not Found');
+            return $response;
+        } catch (MethodNotAllowed) {
+            return $this->responseFactory->createResponse(405);
+        } catch (Throwable $t) {
+            throw new InternalServerError($t->getMessage(), $t->getCode(), $t);
+        }
+
+        if ($handler instanceof RoutedRequestHandler) {
+            $handler->setRouteAttributeName($this->routeAttributeName);
+        }
+        return $handler->handle($request);
+    }
+}

implementation/14-middleware/src/Http/RoutedRequestHandler.php

@@ -0,0 +1,10 @@
+<?php declare(strict_types=1);
+
+namespace Lubian\NoFramework\Http;
+
+use Psr\Http\Server\RequestHandlerInterface;
+
+interface RoutedRequestHandler extends RequestHandlerInterface
+{
+    public function setRouteAttributeName(string $routeAttributeName = '__route_handler'): void;
+}

implementation/14-middleware/src/Kernel.php

@@ -0,0 +1,32 @@
+<?php declare(strict_types=1);
+
+namespace Lubian\NoFramework;
+
+use Lubian\NoFramework\Factory\RequestFactory;
+use Lubian\NoFramework\Http\Emitter;
+use Lubian\NoFramework\Http\Pipeline;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\ServerRequestInterface;
+use Psr\Http\Server\RequestHandlerInterface;
+
+final class Kernel implements RequestHandlerInterface
+{
+    public function __construct(
+        private readonly RequestFactory $requestFactory,
+        private readonly Pipeline $pipeline,
+        private readonly Emitter $emitter,
+    ) {
+    }
+
+    public function handle(ServerRequestInterface $request): ResponseInterface
+    {
+        return $this->pipeline->dispatch($request);
+    }
+
+    public function run(): void
+    {
+        $request = $this->requestFactory->fromGlobals();
+        $response = $this->handle($request);
+        $this->emitter->emit($response);
+    }
+}

implementation/14-middleware/src/Service/Time/Now.php

@@ -0,0 +1,10 @@
+<?php declare(strict_types=1);
+
+namespace Lubian\NoFramework\Service\Time;
+
+use DateTimeImmutable;
+
+interface Now
+{
+    public function __invoke(): DateTimeImmutable;
+}

implementation/14-middleware/src/Service/Time/SystemClockNow.php

@@ -0,0 +1,13 @@
+<?php declare(strict_types=1);
+
+namespace Lubian\NoFramework\Service\Time;
+
+use DateTimeImmutable;
+
+final class SystemClockNow implements Now
+{
+    public function __invoke(): DateTimeImmutable
+    {
+        return new DateTimeImmutable;
+    }
+}

implementation/14-middleware/src/Settings.php

@@ -0,0 +1,15 @@
+<?php declare(strict_types=1);
+
+namespace Lubian\NoFramework;
+
+final class Settings
+{
+    public function __construct(
+        public readonly string $environment,
+        public readonly string $dependenciesFile,
+        public readonly string $middlewaresFile,
+        public readonly string $templateDir,
+        public readonly string $templateExtension,
+    ) {
+    }
+}

implementation/14-middleware/src/Template/MustacheRenderer.php

@@ -0,0 +1,17 @@
+<?php declare(strict_types=1);
+
+namespace Lubian\NoFramework\Template;
+
+use Mustache_Engine;
+
+final class MustacheRenderer implements Renderer
+{
+    public function __construct(private Mustache_Engine $engine)
+    {
+    }
+
+    public function render(string $template, array $data = []): string
+    {
+        return $this->engine->render($template, $data);
+    }
+}

implementation/14-middleware/src/Template/Renderer.php

@@ -0,0 +1,11 @@
+<?php declare(strict_types=1);
+
+namespace Lubian\NoFramework\Template;
+
+interface Renderer
+{
+    /**
+     * @param array<string, mixed> $data
+     */
+    public function render(string $template, array $data = []): string;
+}

implementation/14-middleware/templates/hello.html

@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>Hello World</title>
+</head>
+<body>
+    <h1>Hello {{name}}</h1>
+    <p>The time is {{now}}</p>
+</body>
+</html>