<?php

namespace Tests\e2e\Controllers;

use App\Text\CreateTextDto;
use App\Text\TextController;
use App\Text\UseCases\CreateText;
use App\User\UseCases\CreateUserDto;
use App\User\User;
use App\ValueObjects\EmailAddress;
use PHPUnit\Framework\TestCase;
use Psr\Http\Message\ServerRequestInterface;
use Slim\Psr7\Factory\ServerRequestFactory;
use Slim\Psr7\Response;
use Tests\Fakes\FakeNodeRepository;
use Tests\Fakes\FakeTextRepository;
use Tests\Fakes\FakeUserRepository;

class TextControllerTest extends TestCase
{
    private FakeTextRepository $textRepo;

    private FakeUserRepository $userRepo;

    private TextController $controller;

    private User $user;

    private User $otherUser;

    private User $admin;

    public function setUp(): void
    {
        $this->textRepo = new FakeTextRepository();
        $this->userRepo = new FakeUserRepository();
        $this->user = $this->userRepo->create(new CreateUserDto(
            email: new EmailAddress('a@b.com'),
            passwordHash: '',
            isAdmin: false,
        ));
        $this->otherUser = $this->userRepo->create(new CreateUserDto(
            email: new EmailAddress('other@b.com'),
            passwordHash: '',
            isAdmin: false,
        ));
        $this->admin = $this->userRepo->create(new CreateUserDto(
            email: new EmailAddress('admin@b.com'),
            passwordHash: '',
            isAdmin: true,
        ));
        $this->textRepo->create(new CreateTextDto(
            name: 'test text',
            user: $this->user,
        ));
        $this->controller = new TextController($this->textRepo);
    }

    private function makeRequest(?User $user): ServerRequestInterface
    {
        $request = new ServerRequestFactory()
            ->createServerRequest('GET', 'http://localhost/texts');
        if ($user !== null) {
            $request = $request->withAttribute('user', $user);
        }
        return $request;
    }

    public function test_get_one_text(): void
    {
        $response = $this->controller->getText(
            $this->makeRequest($this->user),
            new Response(),
            0,
        );
        $this->assertEquals(
            json_encode([
                'id' => 0,
                'name' => 'test text',
            ]),
            $response->getBody()
        );
    }

    public function test_get_text_returns_404_when_not_found(): void
    {
        $response = $this->controller->getText(
            $this->makeRequest($this->user),
            new Response(),
            99,
        );
        $this->assertEquals(404, $response->getStatusCode());
    }

    public function test_get_text_returns_403_when_not_owner(): void
    {
        $response = $this->controller->getText(
            $this->makeRequest($this->otherUser),
            new Response(),
            0,
        );
        $this->assertEquals(403, $response->getStatusCode());
    }

    public function test_get_text_allows_admin_to_read_any_text(): void
    {
        $response = $this->controller->getText(
            $this->makeRequest($this->admin),
            new Response(),
            0,
        );
        $this->assertEquals(200, $response->getStatusCode());
        $this->assertEquals(
            json_encode([
                'id' => 0,
                'name' => 'test text',
            ]),
            $response->getBody()
        );
    }

    public function test_get_all_texts_returns_every_text(): void
    {
        $this->textRepo->create(new CreateTextDto(
            name: 'other users text',
            user: $this->otherUser,
        ));
        $response = $this->controller->getAllTexts(new Response());
        $this->assertEquals(
            json_encode([
                [
                    'id' => 0,
                    'name' => 'test text',
                ],
                [
                    'id' => 1,
                    'name' => 'other users text',
                ],
            ]),
            $response->getBody()
        );
    }

    public function test_get_my_texts_returns_only_own_texts(): void
    {
        $this->textRepo->create(new CreateTextDto(
            name: 'other users text',
            user: $this->otherUser,
        ));
        $this->textRepo->create(new CreateTextDto(
            name: 'second of mine',
            user: $this->user,
        ));
        $response = $this->controller->getMyTexts(
            $this->makeRequest($this->user),
            new Response(),
        );
        $this->assertEquals(
            json_encode([
                [
                    'id' => 0,
                    'name' => 'test text',
                ],
                [
                    'id' => 2,
                    'name' => 'second of mine',
                ],
            ]),
            $response->getBody()
        );
    }

    public function test_get_my_texts_returns_empty_when_user_has_none(): void
    {
        $response = $this->controller->getMyTexts(
            $this->makeRequest($this->otherUser),
            new Response(),
        );
        $this->assertEquals(json_encode([]), $response->getBody());
    }

    public function test_create_text(): void
    {
        $request = new ServerRequestFactory()
            ->createServerRequest('POST', 'http://localhost/texts')
            ->withParsedBody(['name' => 'my new text'])
            ->withAttribute('user', $this->user);

        $response = $this->controller->createText(
            $request,
            new Response(),
            new CreateText(
                $this->textRepo,
                new FakeNodeRepository(),
            ),
        );
        $this->assertEquals(
            json_encode([
                'id' => 1,
                'name' => 'my new text',
            ]),
            $response->getBody()
        );
    }

    public function test_create_text_returns_400_when_name_missing(): void
    {
        $request = new ServerRequestFactory()
            ->createServerRequest('POST', 'http://localhost/texts')
            ->withParsedBody([])
            ->withAttribute('user', $this->user);

        $response = $this->controller->createText(
            $request,
            new Response(),
            new CreateText(
                $this->textRepo,
                new FakeNodeRepository(),
            ),
        );

        $this->assertEquals(400, $response->getStatusCode());
        $body = json_decode($response->getBody(), true);
        $this->assertArrayHasKey('error', $body);
    }

    public function test_create_text_persists_user_from_session(): void
    {
        $request = new ServerRequestFactory()
            ->createServerRequest('POST', 'http://localhost/texts')
            ->withParsedBody(['name' => 'my new text'])
            ->withAttribute('user', $this->user);

        $this->controller->createText(
            $request,
            new Response(),
            new CreateText(
                $this->textRepo,
                new FakeNodeRepository(),
            ),
        );

        $stored = $this->textRepo->find(1);
        $this->assertNotNull($stored);
        $this->assertEquals(
            $this->user->getId(),
            $stored->getUser()->getId()
        );
    }

    public function test_create_text_ignores_user_id_in_body(): void
    {
        $request = new ServerRequestFactory()
            ->createServerRequest('POST', 'http://localhost/texts')
            ->withParsedBody([
                'name' => 'my new text',
                'userId' => $this->otherUser->getId(),
            ])
            ->withAttribute('user', $this->user);

        $this->controller->createText(
            $request,
            new Response(),
            new CreateText(
                $this->textRepo,
                new FakeNodeRepository(),
            ),
        );

        $stored = $this->textRepo->find(1);
        $this->assertEquals(
            $this->user->getId(),
            $stored->getUser()->getId()
        );
    }

    public function test_create_text_returns_401_when_unauthenticated(): void
    {
        $request = new ServerRequestFactory()
            ->createServerRequest('POST', 'http://localhost/texts')
            ->withParsedBody(['name' => 'my new text']);

        $response = $this->controller->createText(
            $request,
            new Response(),
            new CreateText(
                $this->textRepo,
                new FakeNodeRepository(),
            ),
        );

        $this->assertEquals(401, $response->getStatusCode());
        $body = json_decode($response->getBody(), true);
        $this->assertArrayHasKey('error', $body);
    }
}