<?php

namespace Tests\Unit\User\UseCases;

use App\Exceptions\BadRequestException;
use App\Exceptions\ForbiddenException;
use App\Shared\ValueObject\EmailAddress;
use App\User\CreateUserDto;
use App\User\UseCases\PromoteUserToAdmin\PromoteUserToAdmin;
use App\User\UseCases\PromoteUserToAdmin\PromoteUserToAdminRequest;
use DomainException;
use Tests\Fakes\FakeUserRepository;
use Tests\TestCase;

class PromoteUserToAdminTest extends TestCase
{
    private FakeUserRepository $userRepo;

    private PromoteUserToAdmin $useCase;

    protected function setUp(): void
    {
        $this->userRepo = new FakeUserRepository;
        $this->useCase = new PromoteUserToAdmin($this->userRepo);
    }

    private function seedUser(bool $isAdmin): int
    {
        $user = $this->userRepo->create(new CreateUserDto(
            email: new EmailAddress('user@example.com'),
            displayName: 'user',
            passwordHash: 'h',
            isAdmin: $isAdmin,
            emailConfirmedAt: null,
        ));

        return $user->getId();
    }

    public function test_non_admin_requester_throws_forbidden(): void
    {
        $userId = $this->seedUser(false);

        $this->expectException(ForbiddenException::class);
        $this->useCase->execute(new PromoteUserToAdminRequest(
            targetUserId: $userId,
            requesterIsAdmin: false,
        ));
    }

    public function test_zero_target_id_throws_bad_request(): void
    {
        $this->expectException(BadRequestException::class);
        $this->useCase->execute(new PromoteUserToAdminRequest(
            targetUserId: 0,
            requesterIsAdmin: true,
        ));
    }

    public function test_unknown_user_throws_domain_exception(): void
    {
        $this->expectException(DomainException::class);
        $this->useCase->execute(new PromoteUserToAdminRequest(
            targetUserId: 999,
            requesterIsAdmin: true,
        ));
    }

    public function test_admin_promotes_target(): void
    {
        $userId = $this->seedUser(false);

        $this->useCase->execute(new PromoteUserToAdminRequest(
            targetUserId: $userId,
            requesterIsAdmin: true,
        ));

        $reloaded = $this->userRepo->find($userId);
        $this->assertTrue($reloaded->isAdmin());
    }

    public function test_already_admin_is_idempotent(): void
    {
        $userId = $this->seedUser(true);

        $this->useCase->execute(new PromoteUserToAdminRequest(
            targetUserId: $userId,
            requesterIsAdmin: true,
        ));

        $reloaded = $this->userRepo->find($userId);
        $this->assertTrue($reloaded->isAdmin());
    }
}