<?php

declare(strict_types=1);

namespace Modules\Helpdesk\Http\Controllers;

use App\Http\Controllers\Controller;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\Http\UploadedFile;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Gate;
use Modules\Helpdesk\Models\Ticket;
use Modules\Helpdesk\Services\AttachmentService;

final class TicketAttachmentStoreController extends Controller
{
    /**
     * Store one or more supporting files directly against an existing ticket.
     */
    public function __invoke(Request $request, Ticket $ticket, AttachmentService $attachments): RedirectResponse
    {
        Gate::authorize('update', $ticket);

        $maxUploadKilobytes = (int) config('helpdesk.max_upload_kb', 10240);
        $allowedMimes = (array) config('helpdesk.allowed_mimes', ['jpg', 'jpeg', 'png', 'pdf', 'txt', 'log', 'zip']);

        $request->validate([
            'attachments' => ['required', 'array', 'min:1'],
            'attachments.*' => ['required', 'file', 'max:' . $maxUploadKilobytes, 'mimes:' . implode(',', $allowedMimes)],
        ]);

        $user = Auth::user();
        abort_if($user === null, 403);

        $uploadedFiles = $request->file('attachments', []);
        $uploadedFiles = is_array($uploadedFiles) ? $uploadedFiles : [$uploadedFiles];
        $uploadedFiles = array_values(array_filter($uploadedFiles, static fn ($file): bool => $file instanceof UploadedFile && $file->isValid()));

        $attachments->storeMany($ticket, $uploadedFiles, (int) $user->id);

        return redirect()
            ->route('helpdesk.tickets.show', $ticket)
            ->with('ticket-attachments-added', count($uploadedFiles) . ' supporting file' . (count($uploadedFiles) === 1 ? '' : 's') . ' uploaded.');
    }
}