<?php

declare(strict_types=1);

namespace App\Tests\Unit\Administration\Application\Command\AssignRole;

use App\Administration\Application\Command\AssignRole\AssignRoleCommand;
use App\Administration\Application\Command\AssignRole\AssignRoleHandler;
use App\Administration\Domain\Exception\RoleDejaAttribueException;
use App\Administration\Domain\Exception\UserNotFoundException;
use App\Administration\Domain\Model\User\Email;
use App\Administration\Domain\Model\User\Role;
use App\Administration\Domain\Model\User\User;
use App\Administration\Infrastructure\Persistence\InMemory\InMemoryUserRepository;
use App\Shared\Domain\Clock;
use App\Shared\Domain\Tenant\TenantId;
use DateTimeImmutable;
use InvalidArgumentException;
use PHPUnit\Framework\Attributes\Test;
use PHPUnit\Framework\TestCase;

final class AssignRoleHandlerTest extends TestCase
{
    private const string TENANT_ID = '550e8400-e29b-41d4-a716-446655440002';
    private const string SCHOOL_NAME = 'École Alpha';

    private InMemoryUserRepository $userRepository;
    private Clock $clock;
    private AssignRoleHandler $handler;

    protected function setUp(): void
    {
        $this->userRepository = new InMemoryUserRepository();
        $this->clock = new class implements Clock {
            public function now(): DateTimeImmutable
            {
                return new DateTimeImmutable('2026-02-07 10:00:00');
            }
        };
        $this->handler = new AssignRoleHandler($this->userRepository, $this->clock);
    }

    #[Test]
    public function assignsRoleSuccessfully(): void
    {
        $user = $this->createAndSaveUser(Role::PROF);

        $command = new AssignRoleCommand(
            userId: (string) $user->id,
            role: Role::VIE_SCOLAIRE->value,
        );

        $result = ($this->handler)($command);

        self::assertTrue($result->aLeRole(Role::PROF));
        self::assertTrue($result->aLeRole(Role::VIE_SCOLAIRE));
        self::assertCount(2, $result->roles);
    }

    #[Test]
    public function savesUserAfterAssignment(): void
    {
        $user = $this->createAndSaveUser(Role::PROF);

        $command = new AssignRoleCommand(
            userId: (string) $user->id,
            role: Role::ADMIN->value,
        );

        ($this->handler)($command);

        $found = $this->userRepository->get($user->id);
        self::assertTrue($found->aLeRole(Role::ADMIN));
    }

    #[Test]
    public function throwsWhenRoleAlreadyAssigned(): void
    {
        $user = $this->createAndSaveUser(Role::PROF);

        $command = new AssignRoleCommand(
            userId: (string) $user->id,
            role: Role::PROF->value,
        );

        $this->expectException(RoleDejaAttribueException::class);

        ($this->handler)($command);
    }

    #[Test]
    public function throwsWhenUserNotFound(): void
    {
        $command = new AssignRoleCommand(
            userId: '550e8400-e29b-41d4-a716-446655440099',
            role: Role::PROF->value,
        );

        $this->expectException(UserNotFoundException::class);

        ($this->handler)($command);
    }

    #[Test]
    public function throwsWhenRoleIsInvalid(): void
    {
        $user = $this->createAndSaveUser(Role::PROF);

        $command = new AssignRoleCommand(
            userId: (string) $user->id,
            role: 'ROLE_INEXISTANT',
        );

        $this->expectException(InvalidArgumentException::class);
        $this->expectExceptionMessage('Rôle invalide');

        ($this->handler)($command);
    }

    #[Test]
    public function throwsWhenTenantIdDoesNotMatch(): void
    {
        $user = $this->createAndSaveUser(Role::PROF);

        $command = new AssignRoleCommand(
            userId: (string) $user->id,
            role: Role::ADMIN->value,
            tenantId: '550e8400-e29b-41d4-a716-446655440099',
        );

        $this->expectException(UserNotFoundException::class);

        ($this->handler)($command);
    }

    #[Test]
    public function allowsAssignmentWhenTenantIdMatches(): void
    {
        $user = $this->createAndSaveUser(Role::PROF);

        $command = new AssignRoleCommand(
            userId: (string) $user->id,
            role: Role::ADMIN->value,
            tenantId: self::TENANT_ID,
        );

        $result = ($this->handler)($command);

        self::assertTrue($result->aLeRole(Role::ADMIN));
    }

    #[Test]
    public function allowsAssignmentWhenTenantIdIsEmpty(): void
    {
        $user = $this->createAndSaveUser(Role::PROF);

        $command = new AssignRoleCommand(
            userId: (string) $user->id,
            role: Role::SECRETARIAT->value,
            tenantId: '',
        );

        $result = ($this->handler)($command);

        self::assertTrue($result->aLeRole(Role::SECRETARIAT));
    }

    private function createAndSaveUser(Role $role): User
    {
        $user = User::inviter(
            email: new Email('user@example.com'),
            role: $role,
            tenantId: TenantId::fromString(self::TENANT_ID),
            schoolName: self::SCHOOL_NAME,
            firstName: 'Jean',
            lastName: 'Dupont',
            invitedAt: new DateTimeImmutable('2026-02-01 10:00:00'),
        );
        $user->pullDomainEvents();
        $this->userRepository->save($user);

        return $user;
    }
}