Files
muninn/app/Support/AiProviders/StabilityAiDriver.php
T
m105andClaude Sonnet 5 0e315ada04 Add AI provider abstraction and asset storage (tasks #33, #34)
AiProviderDriver: one generic interface (generate(prompt, options) ->
AiGenerationResult) rather than per-capability interfaces, since text
(OpenAI chat completions), image (StabilityAI stable-image), and
speech (ElevenLabs TTS) generation all reduce to prompt-in/content-out.
Drivers throw AiGenerationException on failure; AiProviderManager
resolves the right driver from an AiProvider record's `provider`
column and guards on is_active. Real request/response shapes per each
provider's API, verified with Http::fake() — no live API keys
available yet to smoke test against the real services.

AssetStorage: stores generated content under
video-projects/{id}/{type}/v{n}.{ext}, versioned per (project, type[,
step]) slot so retries don't clobber earlier output, plus
contents/url/delete and pruneOldVersions for cleanup.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-08-06 20:47:06 +03:00

50 lines
1.7 KiB
PHP

<?php
namespace App\Support\AiProviders;
use App\Models\AiProvider;
use Illuminate\Http\Client\ConnectionException;
use Illuminate\Support\Facades\Http;
/**
* Image generation via StabilityAI's Stable Image Core API. Used for
* storyboard frames, thumbnails, and scene visuals.
*/
class StabilityAiDriver implements AiProviderDriver
{
public function generate(AiProvider $provider, string $prompt, array $options = []): AiGenerationResult
{
$outputFormat = $options['output_format'] ?? $provider->config['output_format'] ?? 'png';
try {
$response = Http::withToken($provider->api_key)
->accept('application/json')
->asMultipart()
->attach('prompt', $prompt)
->attach('output_format', $outputFormat)
->post('https://api.stability.ai/v2beta/stable-image/generate/core');
} catch (ConnectionException $e) {
throw new AiGenerationException("could not connect to StabilityAI: {$e->getMessage()}");
}
if ($response->failed()) {
$error = $response->json('errors.0') ?? $response->json('message') ?? 'unexpected response from StabilityAI';
throw new AiGenerationException($error);
}
$base64 = $response->json('image');
if (! $base64) {
throw new AiGenerationException('unexpected response from StabilityAI: missing image data');
}
$bytes = base64_decode($base64);
return new AiGenerationResult($bytes, "image/{$outputFormat}", [
'seed' => $response->json('seed'),
'finish_reason' => $response->json('finish_reason'),
]);
}
}