<?php

namespace App\Http\Controllers\Admin;

use App\Enums\TemplateGenerationStatus;
use App\Http\Controllers\Controller;
use App\Models\TemplateGeneration;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Storage;
use Symfony\Component\HttpFoundation\StreamedResponse;

class GenerationDownloadController extends Controller
{
    public function __invoke(Request $request, TemplateGeneration $generation): StreamedResponse
    {
        $user = $request->user();

        abort_unless($user && ($user->hasRole('admin') || $user->hasPermission('templates.manage')), 403);
        abort_if($generation->status !== TemplateGenerationStatus::Completed || ! $generation->output_path, 404);

        return Storage::disk('local')->download($generation->output_path, $generation->downloadFilename().'.pptx');
    }
}