<?php

declare(strict_types=1);

namespace App\Module\ProjectManagement\Infrastructure\Mcp\Tool\Project;

use App\Module\Directory\Domain\Repository\ClientRepositoryInterface;
use App\Module\ProjectManagement\Domain\Entity\Project;
use App\Module\ProjectManagement\Domain\Repository\WorkflowRepositoryInterface;
use App\Shared\Infrastructure\Mcp\Serializer;
use Doctrine\ORM\EntityManagerInterface;
use InvalidArgumentException;
use Mcp\Capability\Attribute\McpTool;
use Symfony\Bundle\SecurityBundle\Security;
use Symfony\Component\Security\Core\Exception\AccessDeniedException;

use function sprintf;

#[McpTool(name: 'create-project', description: 'Create a new project. Code must be 2-10 uppercase letters. Optional workflowId selects the kanban workflow; the default workflow is used when omitted.')]
class CreateProjectTool
{
    public function __construct(
        private readonly EntityManagerInterface $entityManager,
        private readonly ClientRepositoryInterface $clientRepository,
        private readonly WorkflowRepositoryInterface $workflowRepository,
        private readonly Security $security,
    ) {}

    public function __invoke(
        string $name,
        string $code,
        ?string $description = null,
        ?string $color = null,
        ?int $clientId = null,
        ?int $workflowId = null,
    ): string {
        if (!$this->security->isGranted('ROLE_USER')) {
            throw new AccessDeniedException('Access denied: ROLE_USER required.');
        }

        $project = new Project();
        $project->setName($name);
        $project->setCode($code);

        if (null !== $description) {
            $project->setDescription($description);
        }
        if (null !== $color) {
            $project->setColor($color);
        }
        if (null !== $clientId) {
            $client = $this->clientRepository->findById($clientId);
            if (null === $client) {
                throw new InvalidArgumentException(sprintf('Client with ID %d not found.', $clientId));
            }
            $project->setClient($client);
        }
        if (null !== $workflowId) {
            $workflow = $this->workflowRepository->findById($workflowId);
            if (null === $workflow) {
                throw new InvalidArgumentException(sprintf('Workflow with ID %d not found.', $workflowId));
            }
            $project->setWorkflow($workflow);
        }
        // When no workflow is supplied, ProjectDefaultWorkflowListener assigns the default at prePersist.

        $this->entityManager->persist($project);
        $this->entityManager->flush();

        return json_encode(Serializer::project($project));
    }
}