fedi-feed-router/backend/tests/Unit/Modules/Lemmy/Services/LemmyPublisherTest.php

<?php

namespace Tests\Unit\Modules\Lemmy\Services;

use App\Modules\Lemmy\Services\LemmyPublisher;
use App\Modules\Lemmy\Services\LemmyApiService;
use App\Services\Auth\LemmyAuthService;
use App\Models\Article;
use App\Models\PlatformAccount;
use App\Models\PlatformChannel;
use App\Exceptions\PlatformAuthException;
use App\Enums\PlatformEnum;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Tests\TestCase;
use Mockery;
use Exception;

class LemmyPublisherTest extends TestCase
{
    use RefreshDatabase;
    protected function tearDown(): void
    {
        Mockery::close();
        parent::tearDown();
    }

    public function test_constructor_initializes_api_service(): void
    {
        $account = PlatformAccount::factory()->make([
            'instance_url' => 'https://lemmy.world'
        ]);

        $publisher = new LemmyPublisher($account);

        $reflection = new \ReflectionClass($publisher);
        
        $apiProperty = $reflection->getProperty('api');
        $apiProperty->setAccessible(true);
        $this->assertInstanceOf(LemmyApiService::class, $apiProperty->getValue($publisher));
        
        $accountProperty = $reflection->getProperty('account');
        $accountProperty->setAccessible(true);
        $this->assertSame($account, $accountProperty->getValue($publisher));
    }

    public function test_publish_to_channel_with_all_data(): void
    {
        $account = PlatformAccount::factory()->make([
            'instance_url' => 'https://lemmy.world'
        ]);

        $article = Article::factory()->make([
            'url' => 'https://example.com/article'
        ]);

        $channel = PlatformChannel::factory()->make([
            'channel_id' => '42'
        ]);

        $extractedData = [
            'title' => 'Test Article',
            'description' => 'Test Description',
            'thumbnail' => 'https://example.com/thumb.jpg',
            'language_id' => 5
        ];

        // Mock LemmyAuthService via service container
        $authMock = Mockery::mock(LemmyAuthService::class);
        $authMock->shouldReceive('getToken')
            ->once()
            ->with($account)
            ->andReturn('test-token');
        
        $this->app->instance(LemmyAuthService::class, $authMock);

        // Mock LemmyApiService
        $apiMock = Mockery::mock(LemmyApiService::class);
        $apiMock->shouldReceive('createPost')
            ->once()
            ->with(
                'test-token',
                'Test Article',
                'Test Description',
                42,
                'https://example.com/article',
                'https://example.com/thumb.jpg',
                5
            )
            ->andReturn(['post_view' => ['post' => ['id' => 999]]]);

        // Create publisher and inject mocked API using reflection
        $publisher = new LemmyPublisher($account);
        
        $reflection = new \ReflectionClass($publisher);
        $apiProperty = $reflection->getProperty('api');
        $apiProperty->setAccessible(true);
        $apiProperty->setValue($publisher, $apiMock);

        $result = $publisher->publishToChannel($article, $extractedData, $channel);

        $this->assertEquals(['post_view' => ['post' => ['id' => 999]]], $result);
    }

    public function test_publish_to_channel_with_minimal_data(): void
    {
        $account = PlatformAccount::factory()->make([
            'instance_url' => 'https://lemmy.world'
        ]);

        $article = Article::factory()->make([
            'url' => 'https://example.com/article'
        ]);

        $channel = PlatformChannel::factory()->make([
            'channel_id' => '24'
        ]);

        $extractedData = [];

        // Mock LemmyAuthService
        $authMock = Mockery::mock(LemmyAuthService::class);
        $authMock->shouldReceive('getToken')
            ->once()
            ->with($account)
            ->andReturn('minimal-token');
        
        $this->app->instance(LemmyAuthService::class, $authMock);

        // Mock LemmyApiService
        $apiMock = Mockery::mock(LemmyApiService::class);
        $apiMock->shouldReceive('createPost')
            ->once()
            ->with(
                'minimal-token',
                'Untitled',
                '',
                24,
                'https://example.com/article',
                null,
                null
            )
            ->andReturn(['post_view' => ['post' => ['id' => 777]]]);

        // Create publisher and inject mocked API using reflection
        $publisher = new LemmyPublisher($account);
        
        $reflection = new \ReflectionClass($publisher);
        $apiProperty = $reflection->getProperty('api');
        $apiProperty->setAccessible(true);
        $apiProperty->setValue($publisher, $apiMock);

        $result = $publisher->publishToChannel($article, $extractedData, $channel);

        $this->assertEquals(['post_view' => ['post' => ['id' => 777]]], $result);
    }

    public function test_publish_to_channel_without_thumbnail(): void
    {
        $account = PlatformAccount::factory()->make([
            'instance_url' => 'https://lemmy.world'
        ]);

        $article = Article::factory()->make([
            'url' => 'https://example.com/article'
        ]);

        $channel = PlatformChannel::factory()->make([
            'channel_id' => '33'
        ]);

        $extractedData = [
            'title' => 'No Thumbnail Article',
            'description' => 'Article without thumbnail',
            'language_id' => 2
        ];

        // Mock LemmyAuthService
        $authMock = Mockery::mock(LemmyAuthService::class);
        $this->app->instance(LemmyAuthService::class, $authMock);
        $authMock->shouldReceive('getToken')
            ->once()
            ->with($account)
            ->andReturn('no-thumb-token');

        // Mock LemmyApiService
        $apiMock = Mockery::mock(LemmyApiService::class);
        $apiMock->shouldReceive('createPost')
            ->once()
            ->with(
                'no-thumb-token',
                'No Thumbnail Article',
                'Article without thumbnail',
                33,
                'https://example.com/article',
                null,
                2
            )
            ->andReturn(['post_view' => ['post' => ['id' => 555]]]);

        // Create publisher and inject mocked API using reflection
        $publisher = new LemmyPublisher($account);
        
        $reflection = new \ReflectionClass($publisher);
        $apiProperty = $reflection->getProperty('api');
        $apiProperty->setAccessible(true);
        $apiProperty->setValue($publisher, $apiMock);

        $result = $publisher->publishToChannel($article, $extractedData, $channel);

        $this->assertEquals(['post_view' => ['post' => ['id' => 555]]], $result);
    }

    public function test_publish_to_channel_throws_platform_auth_exception(): void
    {
        $account = PlatformAccount::factory()->make([
            'instance_url' => 'https://lemmy.world'
        ]);

        $article = Article::factory()->make();
        $channel = PlatformChannel::factory()->make();
        $extractedData = [];

        // Mock LemmyAuthService to throw exception
        $authMock = Mockery::mock(LemmyAuthService::class);
        $this->app->instance(LemmyAuthService::class, $authMock);
        $authMock->shouldReceive('getToken')
            ->once()
            ->with($account)
            ->andThrow(new PlatformAuthException(PlatformEnum::LEMMY, 'Auth failed'));

        $publisher = new LemmyPublisher($account);

        $this->expectException(PlatformAuthException::class);
        $this->expectExceptionMessage('Auth failed');

        $publisher->publishToChannel($article, $extractedData, $channel);
    }

    public function test_publish_to_channel_throws_api_exception(): void
    {
        $account = PlatformAccount::factory()->make([
            'instance_url' => 'https://lemmy.world'
        ]);

        $article = Article::factory()->make([
            'url' => 'https://example.com/article'
        ]);

        $channel = PlatformChannel::factory()->make([
            'channel_id' => '42'
        ]);

        $extractedData = [
            'title' => 'Test Article'
        ];

        // Mock LemmyAuthService via service container
        $authMock = Mockery::mock(LemmyAuthService::class);
        $authMock->shouldReceive('getToken')
            ->once()
            ->with($account)
            ->andReturn('test-token');
        
        $this->app->instance(LemmyAuthService::class, $authMock);

        // Mock LemmyApiService to throw exception
        $apiMock = Mockery::mock(LemmyApiService::class);
        $apiMock->shouldReceive('createPost')
            ->once()
            ->andThrow(new Exception('API Error'));

        // Create publisher and inject mocked API using reflection
        $publisher = new LemmyPublisher($account);
        
        $reflection = new \ReflectionClass($publisher);
        $apiProperty = $reflection->getProperty('api');
        $apiProperty->setAccessible(true);
        $apiProperty->setValue($publisher, $apiMock);

        $this->expectException(Exception::class);
        $this->expectExceptionMessage('API Error');

        $publisher->publishToChannel($article, $extractedData, $channel);
    }

    public function test_publish_to_channel_handles_string_channel_id(): void
    {
        $account = PlatformAccount::factory()->make([
            'instance_url' => 'https://lemmy.world'
        ]);

        $article = Article::factory()->make([
            'url' => 'https://example.com/article'
        ]);

        $channel = PlatformChannel::factory()->make([
            'channel_id' => 'string-42'
        ]);

        $extractedData = [
            'title' => 'Test Title'
        ];

        // Mock LemmyAuthService
        $authMock = Mockery::mock(LemmyAuthService::class);
        $this->app->instance(LemmyAuthService::class, $authMock);
        $authMock->shouldReceive('getToken')
            ->once()
            ->andReturn('token');

        // Mock LemmyApiService - should receive integer conversion of channel_id
        $apiMock = Mockery::mock(LemmyApiService::class);
        $apiMock->shouldReceive('createPost')
            ->once()
            ->with(
                'token',
                'Test Title',
                '',
                0, // 'string-42' converts to 0
                'https://example.com/article',
                null,
                null
            )
            ->andReturn(['success' => true]);

        // Create publisher and inject mocked API using reflection
        $publisher = new LemmyPublisher($account);
        
        $reflection = new \ReflectionClass($publisher);
        $apiProperty = $reflection->getProperty('api');
        $apiProperty->setAccessible(true);
        $apiProperty->setValue($publisher, $apiMock);

        $result = $publisher->publishToChannel($article, $extractedData, $channel);

        $this->assertEquals(['success' => true], $result);
    }
}