Added basic MCP tools to search for parts and get part details

src/State/Mcp/GetPartByIdProcessor.php

@@ -0,0 +1,60 @@
+<?php
+/*
+ * This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
+ *
+ *  Copyright (C) 2019 - 2026 Jan Böhmer (https://github.com/jbtronics)
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Affero General Public License as published
+ *  by the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Affero General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Affero General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+declare(strict_types=1);
+
+namespace App\State\Mcp;
+
+use ApiPlatform\Metadata\Operation;
+use ApiPlatform\State\ProcessorInterface;
+use App\Entity\Parts\Part;
+use App\Mcp\DTO\ElementByIdInput;
+use Doctrine\ORM\EntityManagerInterface;
+use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
+use Symfony\Component\Security\Core\Authorization\AuthorizationCheckerInterface;
+use Symfony\Component\Security\Core\Exception\AccessDeniedException;
+
+class GetPartByIdProcessor implements ProcessorInterface
+{
+    public function __construct(
+        private readonly EntityManagerInterface $entityManager,
+        private readonly AuthorizationCheckerInterface $authorizationChecker,
+    ) {
+    }
+
+    public function process(mixed $data, Operation $operation, array $uriVariables = [], array $context = [])
+    {
+        if (!$data instanceof ElementByIdInput) {
+            throw new \InvalidArgumentException('Expected PartByIdInput');
+        }
+
+        $part = $this->entityManager->find(Part::class, $data->id);
+
+        if (!$part instanceof Part) {
+            throw new NotFoundHttpException(sprintf('Part with id %d not found', $data->id));
+        }
+
+        if (!$this->authorizationChecker->isGranted('read', $part)) {
+            throw new AccessDeniedException(sprintf('Access denied to part with id %d', $data->id));
+        }
+
+        return $part;
+    }
+}

src/State/Mcp/SearchPartsProcessor.php

@@ -0,0 +1,80 @@
+<?php
+/*
+ * This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
+ *
+ *  Copyright (C) 2019 - 2026 Jan Böhmer (https://github.com/jbtronics)
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Affero General Public License as published
+ *  by the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Affero General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Affero General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+declare(strict_types=1);
+
+
+namespace App\State\Mcp;
+
+use ApiPlatform\Metadata\Operation;
+use ApiPlatform\State\ProcessorInterface;
+use App\DataTables\Filters\PartSearchFilter;
+use App\Entity\Parts\Part;
+use Doctrine\ORM\EntityManagerInterface;
+use Doctrine\ORM\QueryBuilder;
+
+class SearchPartsProcessor implements ProcessorInterface
+{
+
+    public function __construct(
+        private readonly EntityManagerInterface $entityManager,
+    ) {
+
+    }
+
+    public function process(mixed $data, Operation $operation, array $uriVariables = [], array $context = [])
+    {
+        if (!$data instanceof PartSearchFilter) {
+            return [];
+        }
+
+        $qb = $this->entityManager->getRepository(Part::class)->createQueryBuilder('part');
+
+        $data->apply($qb);
+        $this->addJoins($qb);
+
+        $qb->addGroupBy('part');
+
+        return $qb->getQuery()->getResult();
+    }
+
+    private function addJoins(QueryBuilder $qb): void
+    {
+        $dql = $qb->getDQL();
+
+        if (str_contains($dql, '_category')) {
+            $qb->leftJoin('part.category', '_category');
+        }
+        if (str_contains($dql, '_storelocations')) {
+            $qb->leftJoin('part.partLots', '_partLots');
+            $qb->leftJoin('_partLots.storage_location', '_storelocations');
+        }
+        if (str_contains($dql, '_orderdetails') || str_contains($dql, '_suppliers')) {
+            $qb->leftJoin('part.orderdetails', '_orderdetails');
+            $qb->leftJoin('_orderdetails.supplier', '_suppliers');
+        }
+        if (str_contains($dql, '_manufacturer')) {
+            $qb->leftJoin('part.manufacturer', '_manufacturer');
+        }
+        if (str_contains($dql, '_footprint')) {
+            $qb->leftJoin('part.footprint', '_footprint');
+        }
+    }
+}