Add route, template and export

src/Components/StateMachines/Mermaid.php

@@ -0,0 +1,35 @@
+<?php
+declare(strict_types=1);
+
+namespace Frosh\Tools\Components\StateMachines;
+
+use Shopware\Core\System\StateMachine\StateMachineEntity;
+use Twig\Environment;
+use Twig\Loader\FilesystemLoader;
+
+final class Mermaid implements ExportInterface
+{
+    private const DEFAULT_PATH = __DIR__ . '/../../Resources/views/administration/mermaid';
+
+    private readonly Environment $twig;
+
+    public function __construct()
+    {
+        $path = realpath(self::DEFAULT_PATH);
+        if (!\is_string($path)) {
+            throw new \RuntimeException('Could not find default path for PlantUML templates');
+        }
+
+        $this->twig = new Environment(new FilesystemLoader($path));
+    }
+
+    public function export(StateMachineEntity $stateMachine, string $title = ''): string
+    {
+        return $this->twig->render('state-machine.html.twig', [
+            'title' => $title,
+            'initialState' => $stateMachine->getInitialState(),
+            'states' => $stateMachine->getStates()?->getElements(),
+            'transitions' => $stateMachine->getTransitions()?->getElements(),
+        ]);
+    }
+}

src/Controller/StateMachineController.php

@@ -4,6 +4,7 @@
 namespace Frosh\Tools\Controller;
 
 use Frosh\Tools\Components\Planuml;
+use Frosh\Tools\Components\StateMachines\Mermaid;
 use Frosh\Tools\Components\StateMachines\Plantuml;
 use Shopware\Core\Framework\Context;
 use Shopware\Core\Framework\DataAbstractionLayer\EntityRepository;
@@ -51,4 +52,34 @@ public function load(Request $request): JsonResponse
 
         return $response;
     }
+
+    #[Route(path: '/state-machines/load-mermaid', name: 'api.frosh.tools.state-machines.load-mermaid', methods: ['GET'])]
+    public function loadMermaid(Request $request): JsonResponse
+    {
+        $stateMachineType = $request->query->get('stateMachine');
+
+        if (empty($stateMachineType)) {
+            return new JsonResponse();
+        }
+
+        $tmp = explode('.', $stateMachineType);
+        $title = ucwords(str_replace('_', ' ', $tmp[0]));
+
+        $criteria = new Criteria();
+        $criteria->addFilter(new EqualsFilter('technicalName', $stateMachineType));
+        $criteria->addAssociations([
+            'states',
+            'transitions',
+        ]);
+
+        $stateMachine = $this->stateMachineRepository->search($criteria, Context::createDefaultContext())->first();
+
+        $exporter = new Mermaid();
+        $generatedMermaid = $exporter->export($stateMachine, $title);
+
+        $response = new JsonResponse($generatedMermaid);
+        $response->setData(['data' => $generatedMermaid]);
+
+        return $response;
+    }
 }

src/Resources/views/administration/mermaid/state-machine.html.twig

@@ -0,0 +1,18 @@
+flowchart TD
+{{ 'START_STATE[Start state] -->' }} {{ initialState.getId() }}
+
+{% for state in states %}
+{{ state.getId() }}({{ state.getName()|replace({'(': "", ')': ""})  }})
+{% set temp %}{% apply spaceless %}
+{% for transition in transitions %}
+    {% if transition.getFromStateId() == state.getId() and transition.getActionName() != 'reopen' %}yes{% else %}{% endif %}
+{% endfor %}{% endapply %}
+{% endset %}
+{% if temp|trim is empty %}
+{{ state.getId() }} {{ '--> FINAL_STATE[Final state]' }}
+{% endif %}
+{% endfor %}
+
+{% for transition in transitions %}
+{{ transition.getFromStateId() }} {{ '--' }} {{ transition.getActionName() }} {{ '-->' }} {{ transition.getToStateId() }}
+{% endfor %}