<?php

declare(strict_types=1);

namespace App\Tests\Import;

use App\Entity\Actor;
use App\Entity\Award;
use App\Entity\AwardType;
use App\Gateway\WikidataGateway;
use App\Repository\AwardTypeRepository;
use App\Import\AwardImporter;
use Doctrine\ORM\EntityManagerInterface;
use PHPUnit\Framework\TestCase;

class AwardImporterTest extends TestCase
{
    private AwardImporter $importer;
    private WikidataGateway&\PHPUnit\Framework\MockObject\MockObject $wikidataGateway;
    private AwardTypeRepository&\PHPUnit\Framework\MockObject\MockObject $awardTypeRepository;
    private EntityManagerInterface&\PHPUnit\Framework\MockObject\MockObject $em;

    protected function setUp(): void
    {
        $this->wikidataGateway = $this->createMock(WikidataGateway::class);
        $this->awardTypeRepository = $this->createMock(AwardTypeRepository::class);
        $this->em = $this->createMock(EntityManagerInterface::class);

        $this->importer = new AwardImporter(
            $this->wikidataGateway,
            $this->awardTypeRepository,
            $this->em,
        );
    }

    public function testSkipsActorWithAwardsAlreadyImported(): void
    {
        $actor = $this->createActorWithFlag('Already Imported', awardsImported: true);

        $this->wikidataGateway->expects($this->never())->method('getAwardsForActors');

        $this->importer->importForActors([$actor]);
    }

    public function testImportsAwardsAndSetsFlag(): void
    {
        $actor = $this->createActorWithFlag('Test Actor', awardsImported: false);

        $this->wikidataGateway->method('getAwardsForActors')->willReturn([
            'Test Actor' => [
                ['name' => 'Academy Award for Best Actor', 'year' => 2020],
            ],
        ]);

        $existingType = new AwardType();
        $existingType->setName('Oscar')->setPattern('Academy Award');

        $this->awardTypeRepository->method('findAll')->willReturn([$existingType]);

        $persisted = [];
        $this->em->method('persist')->willReturnCallback(function ($entity) use (&$persisted) {
            $persisted[] = $entity;
        });

        $this->importer->importForActors([$actor]);

        $this->assertTrue($actor->isAwardsImported());
        $this->assertCount(1, $persisted);
        $this->assertInstanceOf(Award::class, $persisted[0]);
        $this->assertSame('Academy Award for Best Actor', $persisted[0]->getName());
        $this->assertSame(2020, $persisted[0]->getYear());
        $this->assertSame($existingType, $persisted[0]->getAwardType());
        $this->assertSame($actor, $persisted[0]->getActor());
    }

    public function testCreatesNewAwardTypeWhenNoPatternMatches(): void
    {
        $actor = $this->createActorWithFlag('Test Actor', awardsImported: false);

        $this->wikidataGateway->method('getAwardsForActors')->willReturn([
            'Test Actor' => [
                ['name' => 'Screen Actors Guild Award for Outstanding Performance', 'year' => 2019],
            ],
        ]);

        $this->awardTypeRepository->method('findAll')->willReturn([]);

        $persisted = [];
        $this->em->method('persist')->willReturnCallback(function ($entity) use (&$persisted) {
            $persisted[] = $entity;
        });

        $this->importer->importForActors([$actor]);

        $this->assertTrue($actor->isAwardsImported());
        // Should persist both a new AwardType and the Award
        $this->assertCount(2, $persisted);

        $newType = $persisted[0];
        $this->assertInstanceOf(AwardType::class, $newType);
        $this->assertSame('Screen Actors Guild Award', $newType->getName());
        $this->assertSame('Screen Actors Guild Award', $newType->getPattern());

        $award = $persisted[1];
        $this->assertInstanceOf(Award::class, $award);
        $this->assertSame($newType, $award->getAwardType());
    }

    public function testDoesNotSetFlagOnWikidataError(): void
    {
        $actor = $this->createActorWithFlag('Test Actor', awardsImported: false);

        $this->wikidataGateway->method('getAwardsForActors')
            ->willThrowException(new \RuntimeException('Wikidata timeout'));

        $this->importer->importForActors([$actor]);

        $this->assertFalse($actor->isAwardsImported());
    }

    public function testHandlesActorWithNoAwards(): void
    {
        $actor = $this->createActorWithFlag('Test Actor', awardsImported: false);

        $this->wikidataGateway->method('getAwardsForActors')->willReturn([]);
        $this->awardTypeRepository->method('findAll')->willReturn([]);

        $this->em->expects($this->never())->method('persist');

        $this->importer->importForActors([$actor]);

        $this->assertTrue($actor->isAwardsImported());
    }

    public function testBatchImportsMultipleActors(): void
    {
        $actor1 = $this->createActorWithFlag('Actor One', awardsImported: false);
        $actor2 = $this->createActorWithFlag('Actor Two', awardsImported: false);
        $alreadyImported = $this->createActorWithFlag('Actor Three', awardsImported: true);

        $this->wikidataGateway->expects($this->once())->method('getAwardsForActors')
            ->with($this->callback(fn (array $actors) => 2 === \count($actors)))
            ->willReturn([
                'Actor One' => [['name' => 'Academy Award for Best Actor', 'year' => 2020]],
                'Actor Two' => [['name' => 'Golden Globe for Best Actor', 'year' => 2021]],
            ]);

        $existingType = new AwardType();
        $existingType->setName('Oscar')->setPattern('Academy Award');

        $this->awardTypeRepository->method('findAll')->willReturn([$existingType]);

        $persisted = [];
        $this->em->method('persist')->willReturnCallback(function ($entity) use (&$persisted) {
            $persisted[] = $entity;
        });

        $this->importer->importForActors([$actor1, $actor2, $alreadyImported]);

        $this->assertTrue($actor1->isAwardsImported());
        $this->assertTrue($actor2->isAwardsImported());
        // 2 Awards + 1 new AwardType (Golden Globe)
        $this->assertCount(3, $persisted);
    }

    private function createActorWithFlag(string $name, bool $awardsImported): Actor
    {
        $actor = new Actor();
        $actor->setName($name);
        $actor->setAwardsImported($awardsImported);

        return $actor;
    }
}