<?php

namespace App\Tests\Service;

use App\Entity\Actions;
use App\Entity\Organizations;
use App\Entity\User;
use App\Service\ActionService;
use Doctrine\ORM\EntityManagerInterface;
use PHPUnit\Framework\MockObject\MockObject;
use PHPUnit\Framework\TestCase;

class ActionServiceTest extends TestCase
{
    private ActionService $service;
    private MockObject|EntityManagerInterface $entityManager;

    protected function setUp(): void
    {
        $this->entityManager = $this->createMock(EntityManagerInterface::class);
        $this->service = new ActionService($this->entityManager);
    }

    /**
     * Helper to set private ID properties on entities without setters
     */
    private function setEntityId(object $entity, int $id): void
    {
        $reflection = new \ReflectionClass($entity);
        if ($reflection->hasProperty('id')) {
            $property = $reflection->getProperty('id');
            // $property->setAccessible(true); // Uncomment for PHP < 8.1
            $property->setValue($entity, $id);
        }
    }

    // ==========================================
    // TEST: getActivityColor
    // ==========================================

    public function testGetActivityColorRecent(): void
    {
        // Less than 15 minutes ago
        $date = new \DateTimeImmutable('-10 minutes');
        $color = $this->service->getActivityColor($date);
        $this->assertEquals('#086572', $color);
    }

    public function testGetActivityColorMedium(): void
    {
        // Between 15 and 60 minutes ago
        $date = new \DateTimeImmutable('-30 minutes');
        $color = $this->service->getActivityColor($date);
        $this->assertEquals('#247208', $color);
    }

    public function testGetActivityColorOld(): void
    {
        // Older than 1 hour
        $date = new \DateTimeImmutable('-2 hours');
        $color = $this->service->getActivityColor($date);
        $this->assertEquals('#cc664c', $color);
    }

    // ==========================================
    // TEST: formatActivities
    // ==========================================

    public function testFormatActivities(): void
    {
        $user = new User();
        $org = new Organizations();

        $action1 = new Actions();
        $action1->setDate(new \DateTimeImmutable('-5 minutes')); // Recent
        $action1->setActionType('LOGIN');
        $action1->setUsers($user);
        $action1->setOrganization($org);
        $action1->setDescription('User logged in');

        $action2 = new Actions();
        $action2->setDate(new \DateTimeImmutable('-2 hours')); // Old
        $action2->setUsers($user);
        $action2->setActionType('LOGOUT');

        $activities = [$action1, $action2];

        $result = $this->service->formatActivities($activities);

        $this->assertCount(2, $result);

        // Check first activity (Recent)
        $this->assertEquals('#086572', $result[0]['color']);
        $this->assertEquals('LOGIN', $result[0]['actionType']);
        $this->assertSame($user->getName(), $result[0]['userName']);

        // Check second activity (Old)
        $this->assertEquals('#cc664c', $result[1]['color']);
        $this->assertEquals('LOGOUT', $result[1]['actionType']);
    }

    // ==========================================
    // TEST: createAction
    // ==========================================

    public function testCreateActionBasic(): void
    {
        $user = new User();
        $user->setEmail('user@test.com');

        $this->entityManager->expects($this->once())
            ->method('persist')
            ->with($this->callback(function (Actions $action) use ($user) {
                return $action->getActionType() === 'LOGIN'
                    && $action->getUsers() === $user
                    && $action->getOrganization() === null
                    && $action->getDescription() === null;
            }));

        $this->entityManager->expects($this->once())->method('flush');

        $this->service->createAction('LOGIN', $user);
    }

    public function testCreateActionWithOrganizationAndTarget(): void
    {
        $user = new User();
        $user->setEmail('admin@test.com');

        $org = new Organizations();
        $this->setEntityId($org, 99);

        // Expect persist with full details
        $this->entityManager->expects($this->once())
            ->method('persist')
            ->with($this->callback(function (Actions $action) use ($user, $org) {
                return $action->getActionType() === 'UPDATE'
                    && $action->getUsers() === $user
                    && $action->getOrganization() === $org
                    // Check description generated by descriptionAction
                    && str_contains($action->getDescription(), 'UPDATE by admin@test.com onto Settings');
            }));

        $this->entityManager->expects($this->once())->method('flush');

        $this->service->createAction('UPDATE', $user, $org, 'Settings');
    }

    // ==========================================
    // TEST: descriptionAction
    // ==========================================

    public function testDescriptionActionSuccess(): void
    {
        $user = new User();
        $user->setEmail('jane@doe.com');

        $action = new Actions();
        $action->setActionType('DELETE');
        $action->setUsers($user);

        // Pass by reference
        $this->service->descriptionAction($action, 'Document.pdf');

        $this->assertEquals(
            'DELETE by jane@doe.com onto Document.pdf',
            $action->getDescription()
        );
    }

    public function testDescriptionActionThrowsIfNoUser(): void
    {
        $action = new Actions();
        $action->setActionType('DELETE');
        // No user set

        $this->expectException(\InvalidArgumentException::class);
        $this->expectExceptionMessage('Action must have a user set');

        $this->service->descriptionAction($action, 'Target');
    }

    public function testDescriptionActionThrowsIfInvalidType(): void
    {
        $invalidObject = new \stdClass();

        $this->expectException(\InvalidArgumentException::class);
        $this->expectExceptionMessage('Action must be an instance of Actions');

        // Pass an object that is NOT an instance of Actions entity
        $this->service->descriptionAction($invalidObject, 'Target');
    }
}