<?php

declare(strict_types=1);

namespace App\Tests\Dashboard;

use App\Dashboard\Contract\DashboardWidgetProviderInterface;
use App\Dashboard\DashboardWidgetRegistry;
use App\Model\DashboardWidget;
use App\Security\Role;
use PHPUnit\Framework\TestCase;
use Symfony\Bundle\SecurityBundle\Security;

class DashboardWidgetRegistryTest extends TestCase
{
    public function testSkipsProvidersWhoseRoleIsNotGranted(): void
    {
        $provider = $this->provider(Role::ADMIN, 100, new DashboardWidget('Nur für Admins', []));

        $registry = new DashboardWidgetRegistry([$provider], $this->securityGranting([]));

        $this->assertSame([], $registry->build());
    }

    public function testKeepsProvidersWhoseRoleIsGranted(): void
    {
        $widget = new DashboardWidget('Gruppenbuchungen', []);
        $provider = $this->provider(Role::GROUPS_MANAGER, 100, $widget);

        $registry = new DashboardWidgetRegistry([$provider], $this->securityGranting([Role::GROUPS_MANAGER]));

        $this->assertSame([$widget], $registry->build());
    }

    /**
     * The hierarchy is security.yaml's business, not the registry's: whatever isGranted() says
     * about ROLE_GROUPS_MANAGER is what an admin gets, without the registry knowing why.
     */
    public function testRoleIsResolvedByTheSecurityCheckerAlone(): void
    {
        $widget = new DashboardWidget('Gruppenbuchungen', []);
        $provider = $this->provider(Role::GROUPS_MANAGER, 100, $widget);

        $security = $this->createMock(Security::class);
        $security->expects($this->once())
            ->method('isGranted')
            ->with(Role::GROUPS_MANAGER)
            ->willReturn(true)
        ;

        $registry = new DashboardWidgetRegistry([$provider], $security);

        $this->assertSame([$widget], $registry->build());
    }

    public function testDropsProvidersReturningNullButKeepsEmptyWidgets(): void
    {
        $empty = new DashboardWidget('Leer, aber da', []);

        $registry = new DashboardWidgetRegistry([
            $this->provider(Role::ADMIN, 100, null),
            $this->provider(Role::ADMIN, 90, $empty),
        ], $this->securityGranting([Role::ADMIN]));

        $this->assertSame([$empty], $registry->build());
    }

    public function testReturnsWidgetsInPriorityOrder(): void
    {
        $low = new DashboardWidget('Zuletzt', []);
        $high = new DashboardWidget('Zuerst', []);

        $registry = new DashboardWidgetRegistry([
            $this->provider(Role::ADMIN, 10, $low),
            $this->provider(Role::ADMIN, 100, $high),
        ], $this->securityGranting([Role::ADMIN]));

        $this->assertSame([$high, $low], $registry->build());
    }

    private function provider(string $role, int $priority, ?DashboardWidget $widget): DashboardWidgetProviderInterface
    {
        $provider = $this->createMock(DashboardWidgetProviderInterface::class);
        $provider->method('getRequiredRole')->willReturn($role);
        $provider->method('getPriority')->willReturn($priority);
        $provider->method('build')->willReturn($widget);

        return $provider;
    }

    /**
     * @param string[] $grantedRoles
     */
    private function securityGranting(array $grantedRoles): Security
    {
        $security = $this->createMock(Security::class);
        $security->method('isGranted')->willReturnCallback(
            static fn (mixed $role): bool => \in_array($role, $grantedRoles, true),
        );

        return $security;
    }
}