<?php

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

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

test('it generates two default-style variants and completes the step', function () {
    Http::fake(['api.stability.ai/*' => Http::response(['image' => base64_encode('bytes')])]);
    AiProvider::factory()->create(['provider' => 'stability_ai']);

    $project = VideoProject::factory()->create(['title' => 'Top 10 Gadgets']);
    $step = $this->engine->start($project, [['type' => 'thumbnail_generation']]);

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

    $fresh = $step->fresh();
    expect($fresh->status)->toBe('completed');
    expect($fresh->output['variant_count'])->toBe(2);
    expect($fresh->output['asset_ids'])->toHaveCount(2);

    $assets = Asset::whereIn('id', $fresh->output['asset_ids'])->get();
    $assets->each(fn ($a) => expect($a->type)->toBe('image'));
    expect($assets->pluck('metadata.style')->sort()->values()->all())
        ->toBe(['minimalist and clean', 'vibrant and colorful']);

    Http::assertSentCount(2);
    Http::assertSent(fn ($request) => str_contains($request->body(), 'Top 10 Gadgets'));
});

test('explicit styles in input override the default variants', function () {
    Http::fake(['api.stability.ai/*' => Http::response(['image' => base64_encode('bytes')])]);
    AiProvider::factory()->create(['provider' => 'stability_ai']);

    $project = VideoProject::factory()->create();
    $step = $this->engine->start($project, [['type' => 'thumbnail_generation']]);
    $step->update(['input' => ['styles' => ['noir', 'retro', 'futuristic']]]);

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

    expect($step->fresh()->output['variant_count'])->toBe(3);
    Http::assertSentCount(3);
});

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

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

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

test('it fails the step and reports which variant failed', function () {
    Http::fake(['api.stability.ai/*' => Http::response(['errors' => ['bad prompt']], 400)]);
    AiProvider::factory()->create(['provider' => 'stability_ai']);

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

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

    expect($step->fresh())
        ->status->toBe('failed')
        ->error->toContain('variant 1');
});