<?php

declare(strict_types=1);

/*
 * Chill is a software for social workers
 *
 * For the full copyright and license information, please view
 * the LICENSE file that was distributed with this source code.
 */

namespace Services\Workflow;

use Chill\MainBundle\Entity\Workflow\EntityWorkflow;
use Chill\MainBundle\Entity\Workflow\EntityWorkflowStep;
use Chill\MainBundle\Repository\Workflow\EntityWorkflowRepository;
use Chill\MainBundle\Service\Workflow\CancelStaleWorkflow;
use Chill\MainBundle\Service\Workflow\CancelStaleWorkflowHandler;
use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\ORM\EntityManagerInterface;
use PHPUnit\Framework\TestCase;
use Psr\Log\LoggerInterface;
use Symfony\Component\Messenger\Exception\UnrecoverableMessageHandlingException;
use Symfony\Component\Workflow\Metadata\MetadataStoreInterface;
use Symfony\Component\Workflow\Registry;
use Symfony\Component\Workflow\Transition;
use Symfony\Component\Workflow\WorkflowInterface;

/**
 * @internal
 *
 * @coversNothing
 */
class CancelStaleWorkflowHandlerTest extends TestCase
{
    public function testInvokeWorkflowWithOneStep(): void
    {
        $workflow = $this->createMock(EntityWorkflow::class);
        $workflow->method('getSteps')->willReturn(new ArrayCollection([$this->createMock(EntityWorkflowStep::class)]));
        $workflow->expects($this->once())->method('getCurrentStep')->willReturn(new EntityWorkflowStep());

        $workflowRepository = $this->createMock(EntityWorkflowRepository::class);
        $workflowRepository->expects($this->once())->method('find')->with($this->identicalTo(1))->willReturn($workflow);

        $em = $this->createMock(EntityManagerInterface::class);
        $em->expects($this->exactly(2))->method('remove')->with($this->isInstanceOf(EntityWorkflowStep::class));
        $em->expects($this->once())->method('flush');

        $registry = $this->createMock(Registry::class);
        $logger = $this->createMock(LoggerInterface::class);

        $handler = new CancelStaleWorkflowHandler($workflowRepository, $registry, $em, $logger);

        $handler(new CancelStaleWorkflow(1));
    }

    public function testInvokeWorkflowWithMultipleStepsAndValidTransition(): void
    {
        $workflow = $this->createMock(EntityWorkflow::class);
        $workflow->method('getSteps')->willReturn(new ArrayCollection([$this->createMock(EntityWorkflowStep::class), $this->createMock(EntityWorkflowStep::class)]));

        $transition = $this->createMock(Transition::class);

        $workflowComponent = $this->createMock(WorkflowInterface::class);
        $registryMock = $this->createMock(Registry::class);
        $registryMock->method('get')
            ->willReturn($workflowComponent);

        $workflowComponent->method('getEnabledTransitions')->willReturn([$transition]);
        $workflowComponent->expects($this->once())->method('apply')->with($workflow, 'annule');

        $metadataStore = $this->createMock(MetadataStore::class);
        $metadataStore->method('getMetadata')->willReturnMap([
            ['isFinal', $transition, true],
            ['isFinalPositive', $transition, false],
        ]);

        $workflowComponent->method('getMetadataStore')->willReturn($metadataStore);

        $workflowRepository = $this->createMock(EntityWorkflowRepository::class);
        $workflowRepository->expects($this->once())->method('find')->with($this->identicalTo(1))->willReturn($workflow);

        $em = $this->createMock(EntityManagerInterface::class);
        $em->expects($this->never())->method('remove');
        $em->expects($this->once())->method('flush');

        $registry = $this->createMock(Registry::class);
        $registry->method('get')->willReturn($workflowComponent);

        $logger = $this->createMock(LoggerInterface::class);
        $logger->expects($this->once())->method('info')->with('EntityWorkflow 1 has been transitioned.');

        $handler = new CancelStaleWorkflowHandler($workflowRepository, $registry, $em, $logger);

        $handler(new CancelStaleWorkflow(1));
    }

    public function testInvokeWorkflowWithMultipleStepsAndNoValidTransition(): void
    {
        $this->expectException(UnrecoverableMessageHandlingException::class);
        $this->expectExceptionMessage('No valid transition found for EntityWorkflow 1.');

        $workflow = $this->createMock(EntityWorkflow::class);
        $workflow->method('getSteps')->willReturn(new ArrayCollection([$this->createMock(EntityWorkflowStep::class), $this->createMock(EntityWorkflowStep::class)]));

        $transition = $this->createMock(Transition::class);

        $workflowComponent = $this->createMock(WorkflowInterface::class);
        $registryMock = $this->createMock(Registry::class);
        $registryMock->method('get')
            ->willReturn($workflowComponent);
        $workflowComponent->method('getEnabledTransitions')->willReturn([$transition]);

        $metadataStore = $this->createMock(MetadataStoreInterface::class);
        $metadataStore->method('getMetadata')->willReturnMap([
            ['isFinal', $transition, false],
            ['isFinalPositive', $transition, true],
        ]);

        $workflowComponent->method('getMetadataStore')->willReturn($metadataStore);

        $workflowRepository = $this->createMock(EntityWorkflowRepository::class);
        $workflowRepository->expects($this->once())->method('find')->with($this->identicalTo(1))->willReturn($workflow);

        $em = $this->createMock(EntityManagerInterface::class);
        $em->expects($this->never())->method('remove');
        $em->expects($this->never())->method('flush');

        $registry = $this->createMock(Registry::class);
        $registry->method('get')->willReturn($workflowComponent);

        $logger = $this->createMock(LoggerInterface::class);
        $logger->expects($this->once())->method('error')->with('No valid transition found for EntityWorkflow 1.');

        $handler = new CancelStaleWorkflowHandler($workflowRepository, $registry, $em, $logger);

        $handler(new CancelStaleWorkflow(1));
    }
}