muninn/tests/Feature/VideoWorkflow/StepHandlers/TtsVoiceoverHandlerTest.php

<?php

use App\Models\AiProvider;
use App\Models\VideoProject;
use App\Support\AiProviders\AiProviderManager;
use App\Support\AssetStorage\AssetStorage;
use App\Support\VideoWorkflow\StepHandlers\TtsVoiceoverHandler;
use App\Support\VideoWorkflow\WorkflowEngine;
use Illuminate\Support\Facades\Http;
use Illuminate\Support\Facades\Storage;

beforeEach(function () {
    Storage::fake();
    $this->engine = new WorkflowEngine;
    $this->assets = new AssetStorage;
    $this->handler = new TtsVoiceoverHandler(app(AiProviderManager::class), $this->assets);
});

test('it voices explicit input text and completes the step', function () {
    Http::fake(['api.elevenlabs.io/*' => Http::response('fake-mp3-bytes', 200, ['Content-Type' => 'audio/mpeg'])]);
    AiProvider::factory()->create(['provider' => 'elevenlabs', 'config' => ['voice_id' => 'v1']]);

    $project = VideoProject::factory()->create();
    $step = $this->engine->start($project, [['type' => 'tts_voiceover']]);
    $step->update(['input' => ['text' => 'Hello and welcome']]);

    $this->handler->handle($step->fresh(), $this->engine);

    $fresh = $step->fresh();
    expect($fresh->status)->toBe('completed');
    expect($fresh->output['characters'])->toBe(strlen('Hello and welcome'));

    $asset = \App\Models\Asset::find($fresh->output['asset_id']);
    expect($asset->type)->toBe('audio');
    expect($asset->mime_type)->toBe('audio/mpeg');
    expect(Storage::get($asset->disk_path))->toBe('fake-mp3-bytes');

    Http::assertSent(fn ($request) => $request['text'] === 'Hello and welcome');
});

test('it falls back to the latest script asset when no input text is given', function () {
    Http::fake(['api.elevenlabs.io/*' => Http::response('bytes')]);
    AiProvider::factory()->create(['provider' => 'elevenlabs', 'config' => ['voice_id' => 'v1']]);

    $project = VideoProject::factory()->create();
    $this->assets->store($project, 'script', 'Old draft', 'txt');
    $this->assets->store($project, 'script', 'Latest draft', 'txt');

    $step = $this->engine->start($project, [['type' => 'tts_voiceover']]);

    $this->handler->handle($step, $this->engine);

    Http::assertSent(fn ($request) => $request['text'] === 'Latest draft');
});

test('a voice_id in step input overrides the provider default', function () {
    Http::fake(['api.elevenlabs.io/*' => Http::response('bytes')]);
    AiProvider::factory()->create(['provider' => 'elevenlabs', 'config' => ['voice_id' => 'default-voice']]);

    $project = VideoProject::factory()->create();
    $step = $this->engine->start($project, [['type' => 'tts_voiceover']]);
    $step->update(['input' => ['text' => 'hi', 'voice_id' => 'custom-voice']]);

    $this->handler->handle($step->fresh(), $this->engine);

    Http::assertSent(fn ($request) => str_contains($request->url(), '/text-to-speech/custom-voice'));
});

test('it fails the step when there is no text to voice', function () {
    AiProvider::factory()->create(['provider' => 'elevenlabs', 'config' => ['voice_id' => 'v1']]);

    $project = VideoProject::factory()->create();
    $step = $this->engine->start($project, [['type' => 'tts_voiceover']]);

    $this->handler->handle($step, $this->engine);

    expect($step->fresh())
        ->status->toBe('failed')
        ->error->toContain('No script text available');
});

test('it fails the step when no active ElevenLabs provider is configured', function () {
    $project = VideoProject::factory()->create();
    $step = $this->engine->start($project, [['type' => 'tts_voiceover']]);
    $step->update(['input' => ['text' => 'hi']]);

    $this->handler->handle($step->fresh(), $this->engine);

    expect($step->fresh())
        ->status->toBe('failed')
        ->error->toContain('No active ElevenLabs provider');
});