From 6a084489eaeb5d5a18751422bc2d98f86626fa16 Mon Sep 17 00:00:00 2001
From: matthieu <matthieu@yuno.malio.fr>
Date: Tue, 19 May 2026 19:59:42 +0200
Subject: [PATCH] feat(workflow) : endpoint POST /projects/{id}/switch-workflow
 + processor transactionnel

---
 src/ApiResource/SwitchWorkflowOutput.php     |  26 +++++
 src/Entity/Project.php                       |  16 +++
 src/State/SwitchProjectWorkflowProcessor.php | 113 +++++++++++++++++++
 3 files changed, 155 insertions(+)
 create mode 100644 src/ApiResource/SwitchWorkflowOutput.php
 create mode 100644 src/State/SwitchProjectWorkflowProcessor.php

diff --git a/src/ApiResource/SwitchWorkflowOutput.php b/src/ApiResource/SwitchWorkflowOutput.php
new file mode 100644
index 0000000..ddc3133
--- /dev/null
+++ b/src/ApiResource/SwitchWorkflowOutput.php
@@ -0,0 +1,26 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\ApiResource;
+
+use Symfony\Component\Serializer\Attribute\Groups;
+
+final class SwitchWorkflowOutput
+{
+    #[Groups(['switch_workflow:read'])]
+    public int $projectId;
+
+    #[Groups(['switch_workflow:read'])]
+    public int $workflowId;
+
+    #[Groups(['switch_workflow:read'])]
+    public int $migratedTaskCount;
+
+    public function __construct(int $projectId, int $workflowId, int $migratedTaskCount)
+    {
+        $this->projectId         = $projectId;
+        $this->workflowId        = $workflowId;
+        $this->migratedTaskCount = $migratedTaskCount;
+    }
+}
diff --git a/src/Entity/Project.php b/src/Entity/Project.php
index 6191f01..04ce728 100644
--- a/src/Entity/Project.php
+++ b/src/Entity/Project.php
@@ -10,9 +10,12 @@ use ApiPlatform\Metadata\ApiResource;
 use ApiPlatform\Metadata\Delete;
 use ApiPlatform\Metadata\Get;
 use ApiPlatform\Metadata\GetCollection;
+use ApiPlatform\Metadata\Link;
 use ApiPlatform\Metadata\Patch;
 use ApiPlatform\Metadata\Post;
+use App\ApiResource\SwitchWorkflowOutput;
 use App\Repository\ProjectRepository;
+use App\State\SwitchProjectWorkflowProcessor;
 use Doctrine\Common\Collections\ArrayCollection;
 use Doctrine\Common\Collections\Collection;
 use Doctrine\ORM\Mapping as ORM;
@@ -30,6 +33,19 @@ use Symfony\Component\Validator\Constraints as Assert;
         ),
         new Patch(security: "is_granted('ROLE_ADMIN')"),
         new Delete(security: "is_granted('ROLE_ADMIN')"),
+        new Post(
+            uriTemplate: '/projects/{id}/switch-workflow',
+            uriVariables: ['id' => new Link(fromClass: Project::class)],
+            security: "is_granted('ROLE_ADMIN')",
+            input: false,
+            output: SwitchWorkflowOutput::class,
+            normalizationContext: ['groups' => ['switch_workflow:read']],
+            processor: SwitchProjectWorkflowProcessor::class,
+            read: true,
+            deserialize: false,
+            validate: false,
+            name: 'switch_workflow',
+        ),
     ],
     normalizationContext: ['groups' => ['project:read']],
     denormalizationContext: ['groups' => ['project:write']],
diff --git a/src/State/SwitchProjectWorkflowProcessor.php b/src/State/SwitchProjectWorkflowProcessor.php
new file mode 100644
index 0000000..c5822ae
--- /dev/null
+++ b/src/State/SwitchProjectWorkflowProcessor.php
@@ -0,0 +1,113 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\State;
+
+use ApiPlatform\Metadata\Operation;
+use ApiPlatform\State\ProcessorInterface;
+use App\ApiResource\SwitchWorkflowOutput;
+use App\Entity\Project;
+use App\Entity\TaskStatus;
+use App\Entity\Workflow;
+use Doctrine\ORM\EntityManagerInterface;
+use Symfony\Component\HttpKernel\Exception\HttpException;
+use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
+use Throwable;
+
+/**
+ * Wraps the switch-workflow operation for a project.
+ * Input: Project (URI variable) + body { workflowId, mapping: { sourceStatusId: targetStatusId|null } }.
+ *
+ * @implements ProcessorInterface<Project, SwitchWorkflowOutput>
+ */
+final readonly class SwitchProjectWorkflowProcessor implements ProcessorInterface
+{
+    public function __construct(
+        private EntityManagerInterface $entityManager,
+    ) {}
+
+    public function process(mixed $data, Operation $operation, array $uriVariables = [], array $context = []): SwitchWorkflowOutput
+    {
+        /** @var Project $project */
+        $project = $data;
+
+        $request = $context['request'] ?? null;
+        $body    = $request ? json_decode($request->getContent(), true) : [];
+
+        $workflowId = $body['workflowId'] ?? null;
+        $mapping    = $body['mapping'] ?? [];
+
+        if (!is_int($workflowId) || !is_array($mapping)) {
+            throw new HttpException(422, 'Body must contain workflowId (int) and mapping (object).');
+        }
+
+        $targetWorkflow = $this->entityManager->find(Workflow::class, $workflowId);
+        if (!$targetWorkflow instanceof Workflow) {
+            throw new NotFoundHttpException('Target workflow not found.');
+        }
+
+        // 1) Lister les statuts source effectivement référencés par les tâches du projet
+        $rows = $this->entityManager->getConnection()->fetchAllAssociative(
+            'SELECT DISTINCT status_id FROM task WHERE project_id = :pid AND status_id IS NOT NULL',
+            ['pid' => $project->getId()],
+        );
+        $referencedSourceIds = array_map(static fn ($r) => (int) $r['status_id'], $rows);
+
+        // 2) Vérifier que chaque source a un mapping
+        $missing = [];
+        foreach ($referencedSourceIds as $srcId) {
+            if (!array_key_exists((string) $srcId, $mapping)) {
+                $missing[] = $srcId;
+            }
+        }
+        if ([] !== $missing) {
+            throw new HttpException(422, 'Missing mapping for source status IDs: '.implode(', ', $missing));
+        }
+
+        // 3) Valider que chaque target appartient au workflow cible (ou est null)
+        foreach ($mapping as $srcId => $targetId) {
+            if (null === $targetId) {
+                continue;
+            }
+            $target = $this->entityManager->find(TaskStatus::class, $targetId);
+            if (!$target instanceof TaskStatus
+                || $target->getWorkflow()?->getId() !== $targetWorkflow->getId()) {
+                throw new HttpException(422, sprintf(
+                    'Target status %s does not belong to workflow %d.',
+                    var_export($targetId, true),
+                    $targetWorkflow->getId(),
+                ));
+            }
+        }
+
+        // 4) Transaction unique
+        $conn = $this->entityManager->getConnection();
+        $conn->beginTransaction();
+
+        try {
+            $migrated = 0;
+            foreach ($mapping as $srcId => $targetId) {
+                $affected = $conn->executeStatement(
+                    'UPDATE task SET status_id = :tid WHERE project_id = :pid AND status_id = :sid',
+                    ['tid' => $targetId, 'pid' => $project->getId(), 'sid' => (int) $srcId],
+                );
+                $migrated += $affected;
+            }
+
+            $project->setWorkflow($targetWorkflow);
+            $this->entityManager->flush();
+            $conn->commit();
+        } catch (Throwable $e) {
+            $conn->rollBack();
+
+            throw $e;
+        }
+
+        return new SwitchWorkflowOutput(
+            projectId: $project->getId(),
+            workflowId: $targetWorkflow->getId(),
+            migratedTaskCount: $migrated,
+        );
+    }
+}