<?php

declare(strict_types=1);

use App\Models\DisplayMedia;
use App\Models\User;
use App\Services\DisplayMediaService;
use Illuminate\Http\UploadedFile;
use Illuminate\Support\Facades\Storage;
use Livewire\Volt\Volt;
use Spatie\Permission\Models\Role;

beforeEach(function () {
    Storage::fake('public');
});

/**
 * Create a real, tiny mp4 on disk using ffmpeg and return the path.
 * Returns null when ffmpeg is unavailable so callers can skip.
 */
function makeRealTestVideo(): ?string
{
    $ffmpeg = trim((string) shell_exec('command -v ffmpeg'));

    if ($ffmpeg === '') {
        return null;
    }

    $path = tempnam(sys_get_temp_dir(), 'vid_').'.mp4';

    $command = sprintf(
        '%s -y -f lavfi -i testsrc=duration=2:size=320x240:rate=10 -pix_fmt yuv420p %s 2>/dev/null',
        escapeshellarg($ffmpeg),
        escapeshellarg($path)
    );

    shell_exec($command);

    return is_file($path) && filesize($path) > 0 ? $path : null;
}

// ========================================
// MODEL TESTS
// ========================================

it('creates an uploaded image media', function () {
    $media = DisplayMedia::factory()->create();

    expect($media->isUpload())->toBeTrue()
        ->and($media->isExternal())->toBeFalse()
        ->and($media->isImage())->toBeTrue()
        ->and($media->isVideo())->toBeFalse()
        ->and($media->source_type)->toBe('upload');
});

it('creates an external video media', function () {
    $media = DisplayMedia::factory()->externalVideo()->create();

    expect($media->isExternal())->toBeTrue()
        ->and($media->isUpload())->toBeFalse()
        ->and($media->isVideo())->toBeTrue()
        ->and($media->external_url)->toStartWith('https://');
});

it('returns correct URL for uploaded media', function () {
    $media = DisplayMedia::factory()->create(['path' => 'display-media/2026/03/test.webp']);

    expect($media->getUrl())->toContain('display-media/2026/03/test.webp');
});

it('returns external URL for external media', function () {
    $url = 'https://drive.google.com/file/d/abc123/view';
    $media = DisplayMedia::factory()->external()->create(['external_url' => $url]);

    expect($media->getUrl())->toBe($url);
});

it('returns human readable file size', function () {
    $media = DisplayMedia::factory()->create(['file_size' => 1536000]);
    expect($media->getHumanFileSize())->toBe('1.5 MB');

    $external = DisplayMedia::factory()->external()->create();
    expect($external->getHumanFileSize())->toBe('Extern');
});

it('returns display name from title or filename', function () {
    $withTitle = DisplayMedia::factory()->create(['title' => 'Mein Video', 'filename' => 'file.mp4']);
    expect($withTitle->getDisplayName())->toBe('Mein Video');

    $withoutTitle = DisplayMedia::factory()->create(['title' => null, 'filename' => 'file.mp4']);
    expect($withoutTitle->getDisplayName())->toBe('file.mp4');
});

it('returns the stored poster as thumbnail url for a video', function () {
    $media = DisplayMedia::factory()->video()->create([
        'thumbnail_path' => 'display-media/2026/05/tour-poster.jpg',
    ]);

    expect($media->getThumbnailUrl())->toContain('display-media/2026/05/tour-poster.jpg');
});

it('has no thumbnail url for a video without a poster', function () {
    $media = DisplayMedia::factory()->video()->create(['thumbnail_path' => null]);

    expect($media->getThumbnailUrl())->toBeNull();
});

// ========================================
// SCOPE TESTS
// ========================================

it('filters by image scope', function () {
    DisplayMedia::factory()->create(['type' => 'image']);
    DisplayMedia::factory()->video()->create();

    expect(DisplayMedia::images()->count())->toBe(1);
});

it('filters by video scope', function () {
    DisplayMedia::factory()->create(['type' => 'image']);
    DisplayMedia::factory()->video()->create();

    expect(DisplayMedia::videos()->count())->toBe(1);
});

it('filters by upload scope', function () {
    DisplayMedia::factory()->create();
    DisplayMedia::factory()->external()->create();

    expect(DisplayMedia::uploads()->count())->toBe(1);
});

it('filters by external scope', function () {
    DisplayMedia::factory()->create();
    DisplayMedia::factory()->external()->create();

    expect(DisplayMedia::externals()->count())->toBe(1);
});

it('filters by collection scope', function () {
    DisplayMedia::factory()->create(['collection' => 'immobilien']);
    DisplayMedia::factory()->create(['collection' => 'moebel']);

    expect(DisplayMedia::inCollection('immobilien')->count())->toBe(1);
});

it('keeps preceding filters when combined with the search scope', function () {
    DisplayMedia::factory()->create([
        'type' => 'image',
        'filename' => 'haus.webp',
        'title' => 'Schaufenster',
    ]);
    DisplayMedia::factory()->video()->create([
        'filename' => 'tour.mp4',
        'title' => 'Haus Tour',
    ]);

    $results = DisplayMedia::images()->search('haus')->get();

    expect($results)->toHaveCount(1)
        ->and($results->first()->filename)->toBe('haus.webp');
});

it('search scope respects the active filter on the media picker', function () {
    DisplayMedia::factory()->create([
        'filename' => 'aktiv.webp',
        'title' => 'Goya',
        'is_active' => true,
    ]);
    DisplayMedia::factory()->create([
        'filename' => 'inaktiv.webp',
        'title' => 'Goya',
        'is_active' => false,
    ]);

    $results = DisplayMedia::active()->search('goya')->get();

    expect($results)->toHaveCount(1)
        ->and($results->first()->filename)->toBe('aktiv.webp');
});

it('filters by active scope', function () {
    DisplayMedia::factory()->create(['is_active' => true]);
    DisplayMedia::factory()->create(['is_active' => false]);

    expect(DisplayMedia::active()->count())->toBe(1);
});

// ========================================
// SERVICE TESTS
// ========================================

it('stores an uploaded file', function () {
    $service = app(DisplayMediaService::class);
    $file = UploadedFile::fake()->image('test-photo.jpg', 800, 600);

    $media = $service->storeUpload($file, 'immobilien');

    expect($media)->toBeInstanceOf(DisplayMedia::class)
        ->and($media->filename)->toBe('test-photo.jpg')
        ->and($media->source_type)->toBe('upload')
        ->and($media->type)->toBe('image')
        ->and($media->collection)->toBe('immobilien')
        ->and($media->path)->not->toBeNull();

    expect(Storage::disk('public')->exists($media->path))->toBeTrue();
});

it('stores a video upload', function () {
    $service = app(DisplayMediaService::class);
    $file = UploadedFile::fake()->create('showroom.mp4', 10000, 'video/mp4');

    $media = $service->storeUpload($file);

    expect($media->type)->toBe('video')
        ->and($media->mime_type)->toBe('video/mp4');
});

it('generates a poster thumbnail when a real video is uploaded', function () {
    $videoPath = makeRealTestVideo();

    if ($videoPath === null) {
        $this->markTestSkipped('ffmpeg is not available.');
    }

    $service = app(DisplayMediaService::class);
    $file = new UploadedFile($videoPath, 'showroom.mp4', 'video/mp4', null, true);

    $media = $service->storeUpload($file);

    expect($media->thumbnail_path)->not->toBeNull();
    expect(Storage::disk('public')->exists($media->thumbnail_path))->toBeTrue();

    @unlink($videoPath);
});

it('does not set a thumbnail when the video cannot be decoded', function () {
    $service = app(DisplayMediaService::class);
    $file = UploadedFile::fake()->create('broken.mp4', 500, 'video/mp4');

    $media = $service->storeUpload($file);

    expect($media->thumbnail_path)->toBeNull();
});

it('stores an svg upload as image media', function () {
    $service = app(DisplayMediaService::class);
    $file = UploadedFile::fake()->createWithContent(
        'logo.svg',
        '<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 10 10"><rect width="10" height="10"/></svg>'
    );

    $media = $service->storeUpload($file);

    expect($media->filename)->toBe('logo.svg')
        ->and($media->type)->toBe('image')
        ->and($media->mime_type)->toBe('image/svg+xml');

    expect(Storage::disk('public')->exists($media->path))->toBeTrue();
});

it('resets pagination to page one when a filter changes', function () {
    Volt::test('admin.cms.display-media-library')
        ->call('gotoPage', 3)
        ->set('filterType', 'video')
        ->assertSet('paginators.page', 1);
});

it('renders external image media with an inline thumbnail', function () {
    $media = DisplayMedia::factory()->external()->create([
        'type' => 'image',
        'external_url' => 'https://example.com/foto.jpg',
    ]);

    Volt::test('admin.cms.display-media-library')
        ->assertSeeHtml('src="https://example.com/foto.jpg"');
});

it('renders a stored poster image for a video with a thumbnail', function () {
    DisplayMedia::factory()->video()->create([
        'path' => 'display-media/2026/05/tour.mp4',
        'thumbnail_path' => 'display-media/2026/05/tour-poster.jpg',
    ]);

    Volt::test('admin.cms.display-media-library')
        ->assertSeeHtml('tour-poster.jpg');
});

it('renders an inline video frame for an uploaded video without a poster', function () {
    DisplayMedia::factory()->video()->create([
        'path' => 'display-media/2026/05/clip.mp4',
        'thumbnail_path' => null,
        'mime_type' => 'video/mp4',
    ]);

    Volt::test('admin.cms.display-media-library')
        ->assertSeeHtml('clip.mp4#t=1');
});

it('accepts svg uploads in the display media library', function () {
    $file = UploadedFile::fake()->createWithContent(
        'brand.svg',
        '<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 10 10"><circle cx="5" cy="5" r="5"/></svg>'
    );

    Volt::test('admin.cms.display-media-library')
        ->set('uploads', [$file])
        ->call('handleUploads')
        ->assertHasNoErrors();

    $media = DisplayMedia::query()->first();

    expect($media)->not->toBeNull()
        ->and($media->filename)->toBe('brand.svg')
        ->and($media->type)->toBe('image')
        ->and($media->mime_type)->toBe('image/svg+xml');
});

it('accepts display media videos up to 200 mb', function () {
    $file = UploadedFile::fake()->create('showroom.mp4', 204800, 'video/mp4');

    Volt::test('admin.cms.display-media-library')
        ->set('uploads', [$file])
        ->call('handleUploads')
        ->assertHasNoErrors();

    $media = DisplayMedia::query()->first();

    expect($media)->not->toBeNull()
        ->and($media->filename)->toBe('showroom.mp4')
        ->and($media->type)->toBe('video');
});

it('configures livewire temporary uploads up to 200 mb', function () {
    expect(config('livewire.temporary_file_upload.rules'))->toContain('max:204800');
});

it('creates media from external URL', function () {
    $service = app(DisplayMediaService::class);

    $media = $service->createFromUrl(
        url: 'https://drive.google.com/file/d/abc123/view',
        type: 'video',
        title: 'Showroom Tour 4K',
        collection: 'brand',
    );

    expect($media->source_type)->toBe('external')
        ->and($media->external_url)->toBe('https://drive.google.com/file/d/abc123/view')
        ->and($media->title)->toBe('Showroom Tour 4K')
        ->and($media->type)->toBe('video')
        ->and($media->collection)->toBe('brand')
        ->and($media->file_size)->toBe(0);
});

it('deletes uploaded media and its file', function () {
    $service = app(DisplayMediaService::class);
    $file = UploadedFile::fake()->image('delete-me.jpg');
    $media = $service->storeUpload($file);
    $path = $media->path;

    expect(Storage::disk('public')->exists($path))->toBeTrue();

    $service->delete($media);

    expect(Storage::disk('public')->exists($path))->toBeFalse();
    expect(DisplayMedia::find($media->id))->toBeNull();
});

it('deletes external media record', function () {
    $service = app(DisplayMediaService::class);
    $media = $service->createFromUrl('https://example.com/video.mp4', 'video');

    $service->delete($media);

    expect(DisplayMedia::find($media->id))->toBeNull();
});

// ========================================
// COMMAND TESTS
// ========================================

it('reports when there are no videos to process', function () {
    $this->artisan('display-media:generate-video-thumbnails')
        ->expectsOutputToContain('Keine Videos zum Verarbeiten gefunden.')
        ->assertSuccessful();
});

it('backfills posters for existing uploaded videos', function () {
    $videoPath = makeRealTestVideo();

    if ($videoPath === null) {
        $this->markTestSkipped('ffmpeg is not available.');
    }

    Storage::disk('public')->putFileAs(
        'display-media/2026/05',
        new UploadedFile($videoPath, 'clip.mp4', 'video/mp4', null, true),
        'clip.mp4'
    );

    $media = DisplayMedia::factory()->video()->create([
        'source_type' => 'upload',
        'path' => 'display-media/2026/05/clip.mp4',
        'thumbnail_path' => null,
    ]);

    $this->artisan('display-media:generate-video-thumbnails')->assertSuccessful();

    expect($media->fresh()->thumbnail_path)->not->toBeNull();

    @unlink($videoPath);
});

// ========================================
// ROUTE TESTS
// ========================================

it('requires authentication for display media library', function () {
    $this->get(route('admin.cms.display-media'))
        ->assertRedirect();
});

it('loads display media library for authenticated admin', function () {
    Role::findOrCreate('Super-Admin', 'web');
    $user = User::factory()->create();
    $user->assignRole('Super-Admin');

    $this->actingAs($user)
        ->get(route('admin.cms.display-media'))
        ->assertSuccessful();
});