<?php

namespace App\Http\Controllers;

use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Storage;
use ZipArchive;

class AssetController extends Controller
{
    public function export(): \Symfony\Component\HttpFoundation\StreamedResponse
    {
        $user = auth()->user();
        if (!$user || !$user->roles()->where('name', 'ROLE_ADMIN')->exists()) {
            abort(403, 'Forbidden');
        }

        $storagePublic = storage_path('app/public');
        $zip = new ZipArchive();
        $zipPath = storage_path('exports/assets-'.date('YmdHis').'.zip');

        if (!is_dir(storage_path('exports'))) {
            mkdir(storage_path('exports'), 0775, true);
        }

        if ($zip->open($zipPath, ZipArchive::CREATE) === true) {
            $this->addDirectoryToZip($zip, $storagePublic, '');
            $zip->close();
        }

        return response()->download($zipPath)->deleteFileAfterSend(true);
    }

    public function import(Request $request): JsonResponse
    {
        $user = $request->user();
        if (!$user || !$user->roles()->where('name', 'ROLE_ADMIN')->exists()) {
            return response()->json(['message' => 'Forbidden'], 403);
        }

        $data = $request->validate([
            'file' => ['required', 'file', 'mimes:zip', 'max:104857600'],
        ]);

        $file = $data['file'];
        $zip = new ZipArchive();
        $zipPath = $file->getPathname();

        if ($zip->open($zipPath) !== true) {
            return response()->json(['message' => 'Invalid zip file'], 400);
        }

        $storagePublic = storage_path('app/public');

        for ($i = 0; $i < $zip->numFiles; $i++) {
            $filename = $zip->getNameIndex($i);
            $fileinfo = $zip->statIndex($i);

            if ($fileinfo['crc'] == 0) {
                continue;
            }

            $targetPath = $storagePublic.DIRECTORY_SEPARATOR.$filename;
            $targetDir = dirname($targetPath);

            if (!is_dir($targetDir)) {
                mkdir($targetDir, 0775, true);
            }

            copy('zip://'.$zipPath.'#'.$filename, $targetPath);
        }

        $zip->close();

        return response()->json([
            'message' => 'Assets imported successfully',
        ]);
    }

    private function addDirectoryToZip(ZipArchive $zip, string $dir, string $zipPath): void
    {
        $files = scandir($dir);

        foreach ($files as $file) {
            if ($file === '.' || $file === '..') {
                continue;
            }

            $path = $dir.DIRECTORY_SEPARATOR.$file;
            $zipPath = $zipPath === '' ? $file : $zipPath.'/'.$file;

            if (is_dir($path)) {
                $zip->addEmptyDir($zipPath);
                $this->addDirectoryToZip($zip, $path, $zipPath);
            } else {
                $zip->addFile($path, $zipPath);
            }
        }
    }
}