[TASK] Refactor RunDecorator to event listener

packages/typo3-guides-extension/resources/config/typo3-guides.php

@@ -3,7 +3,9 @@
 declare(strict_types=1);
 
 use phpDocumentor\Guides\Cli\Command\Run;
+use Symfony\Component\Console\ConsoleEvents;
 use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
+use T3Docs\GuidesExtension\Command\ApplicationEventListener;
 use T3Docs\GuidesExtension\Command\RunDecorator;
 
 use function Symfony\Component\DependencyInjection\Loader\Configurator\service;
@@ -30,5 +32,7 @@
         ->set(\phpDocumentor\Guides\NodeRenderers\DelegatingNodeRenderer::class)
         ->call('setNodeRendererFactory', [service('phpdoc.guides.noderenderer.factory.html')])
         ->tag('phpdoc.guides.noderenderer.singlepage')
+        ->set(ApplicationEventListener::class)
+        ->tag('event_listener', ['event' => ConsoleEvents::COMMAND, 'method' => '__invoke']);
     ;
 };

packages/typo3-guides-extension/src/Command/ApplicationEventListener.php

@@ -0,0 +1,131 @@
+<?php
+
+declare(strict_types=1);
+namespace T3Docs\GuidesExtension\Command;
+
+use Symfony\Component\Console\Event\ConsoleCommandEvent;
+use Symfony\Component\Console\Input\ArrayInput;
+use Symfony\Component\Console\Output\OutputInterface;
+
+final class ApplicationEventListener
+{
+    private const DEFAULT_OUTPUT_DIRECTORY = 'Documentation-GENERATED-temp';
+
+    private const INDEX_FILE_NAMES = [
+        'Index.rst' => 'rst',
+        'index.rst' => 'rst',
+        'Index.md' => 'md',
+        'index.md' => 'md',
+    ];
+    private const FALLBACK_FILE_NAMES = [
+        'README.rst' => 'rst',
+        'README.md' => 'md',
+    ];
+    public function __invoke(ConsoleCommandEvent $event): void
+    {
+        $input = $event->getInput();
+        $output = $event->getOutput();
+        $options = [];
+        foreach ($input->getOptions() as $option => $value) {
+            if ($value === null) {
+                continue;
+            }
+
+            $options['--' . $option] = $value;
+        }
+        $arguments = $input->getArguments();
+        if ($arguments['input'] === null) {
+            $guessedInput = $this->guessInput($output);
+        } else {
+            $guessedInput = [];
+        }
+
+        if (!isset($options['--output'])) {
+            $options['--output'] = getcwd() . '/' . self::DEFAULT_OUTPUT_DIRECTORY;
+        }
+
+
+        $input = new ArrayInput(
+            [
+                ...$arguments,
+                ...$options,
+                ...$guessedInput,
+            ]
+        );
+
+        if ($output->isDebug()) {
+            $readableOutput = "<info>Options:</info>\n";
+            $readableOutput .= print_r($input->getOptions(), true);
+
+            $readableOutput .= "<info>Arguments:</info>\n";
+            $readableOutput .= print_r($input->getArguments(), true);
+
+            $readableOutput .= "<info>Guessed Input:</info>\n";
+            $readableOutput .= print_r($guessedInput, true);
+
+            $output->writeln(sprintf("<info>DEBUG</info> Using parameters:\n%s", $readableOutput));
+        }
+
+        // Todo: How do we set the new input
+
+        $event->getOutput()->writeln(
+            sprintf(
+                'We are in the ApplicationEventListener',
+            ),
+        );
+    }
+
+    /** @return array<string, string> */
+    private function guessInput(OutputInterface $output): array
+    {
+        $currentDirectory = getcwd();
+        if ($currentDirectory === false) {
+            if ($output->isDebug()) {
+                $output->writeln('<info>DEBUG</info> Could not fetch current working directory.');
+            }
+
+            return [];
+        }
+
+        $inputDirectory = $currentDirectory . '/Documentation';
+
+        if (is_dir($inputDirectory)) {
+            if ($output->isVerbose()) {
+                $output->writeln(sprintf('<info>INFO</info> Input directory not specified, using %s', $inputDirectory));
+            }
+
+            foreach (self::INDEX_FILE_NAMES as $filename => $extension) {
+                if (file_exists($inputDirectory . DIRECTORY_SEPARATOR . $filename)) {
+                    if ($output->isDebug()) {
+                        $output->writeln(sprintf('<info>DEBUG</info> Using entrypoint %s', $filename));
+                    }
+
+                    return [
+                        'input' => $inputDirectory,
+                        '--input-format' => $extension,
+                    ];
+                }
+            }
+        }
+
+        if ($output->isVerbose()) {
+            $output->writeln('<info>INFO</info> Index documentation file not found, trying README.rst or README.md');
+        }
+
+        foreach (self::FALLBACK_FILE_NAMES as $filename => $extension) {
+            if (file_exists($currentDirectory . DIRECTORY_SEPARATOR . $filename)) {
+                if ($output->isVerbose()) {
+                    $output->writeln(sprintf('<info>DEBUG</info> Using entrypoint %s', $filename));
+                }
+
+                return [
+                    'input' => $currentDirectory,
+                    '--input-file' => $currentDirectory . DIRECTORY_SEPARATOR . $filename,
+                    '--input-format' => $extension,
+                ];
+            }
+        }
+
+        return [];
+    }
+}