<?php

namespace app\services;

use app\models\register\Collections;
use app\models\RegisterObjects;

class ZipCollection
{
    public static function zipByCollectionId()
    {
        if (!empty(empty($_GET['id']))) {
            echo json_encode(['error' => true, 'missing token_id']);
            exit;
        }
        if (!Auth::getUser()) {
            echo json_encode(['error' => true, 'User is not authorised']);
            exit;
        }

        $decode = JWT::decode($_GET['id'], JWT::SECRET_KEY);
        $user_id = Auth::getUser()->id;
        $cDir = $_SERVER['DOCUMENT_ROOT'] . '/_temp_files';

        $object = RegisterObjects::findOne($decode->object_id);
        $object_name = $user_id . '-' . $object->id;
        $object_dir = $cDir . '/' . $object_name;
        $files_to_remove_later = [];

        if (!file_exists($object_dir))
            mkdir($object_dir, 0777, true);

        $object_path = $object_dir . '/' . Formatter::cyrillicTrans($object->name);
        if (!file_exists($object_path))
            mkdir($object_path, 0777, true);

        if ($object) {
            foreach ($object->registerObjectImages as $image) {
                $files_to_remove_later[] = $image->getCopyImg($object_path);
            }
        }

        $zipFile = $object_path . '.zip';
        $zipName = Formatter::cyrillicTrans($object->name) . '.zip';

        $zip = new \ZipArchive();

        if ($zip->open($zipFile, \ZipArchive::CREATE) === TRUE) {
            // Add all files and subdirectories to the zip file
            $files = new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($object_dir));
            foreach ($files as $file) {
                if (!$file->isDir()) {
                    $filePath = $file->getRealPath();
                    $relativePath = substr($filePath, strlen($object_path) + 1);
                    $zip->addFile($filePath, $relativePath);
                }
            }
            // Close the zip file
            $zip->close();
        }
        echo json_encode(['success' => true, 'zipName' => $zipName, 'zipFile' => $zipFile, 'object_dir' => $object_dir]);
        exit;


    }

    public static function downloadZip() {

        foreach (['zipName', 'zipFile', 'object_dir'] as $param) {
            if(empty($_GET[$param])) {
              echo 'missing: '. $param;
              exit;
            }
        }

        $zipFile = $_GET['zipFile'];
        $zipName = $_GET['zipName'];
        $object_dir = $_GET['object_dir'];

        header('Content-Type: application/zip');
        header('Content-Disposition: attachment; filename="' . $zipName . '"');
        header('Content-Length: ' . filesize($zipFile));
        readfile($zipFile);
        if(file_exists($zipFile))
            unlink($zipFile);

        if (is_dir($object_dir)) {
            $files = array_diff(scandir($object_dir), array('.', '..'));
            foreach ($files as $file) {
                $path = $object_dir . '/' . $file;
                if (is_dir($path)) {
                    self::rrmdir($path);
                } else {
                    unlink($path);
                }
            }
            rmdir($object_dir);
        }
        echo json_encode(['success' => true]);
        exit;
    }

    private static function compressImage($tempPath, $originalPath, $imageQuality)
    {
        //return $tempPath. '<br>'. $originalPath . '<br>';
        // Get image info
        $imgInfo = getimagesize($tempPath);
        $mime = $imgInfo['mime'];

        // Create a new image from file
        switch ($mime) {
            case 'image/jpeg':
                $image = imagecreatefromjpeg($tempPath);
                break;
            case 'image/png':
                $image = imagecreatefrompng($tempPath);
                break;
            case 'image/gif':
                $image = imagecreatefromgif($tempPath);
                break;
            default:
                $image = imagecreatefromjpeg($tempPath);
        }

        //$imgResized = imagescale($image, 350);


        // Save image
        imagejpeg($image, $originalPath, $imageQuality);
        //imagedestroy($image);
        // Return compressed image
        //return $originalPath;
    }


// Recursive function to delete a directory and its contents
    private static function rrmdir($dir)
    {
        if (is_dir($dir)) {
            $files = array_diff(scandir($dir), array('.', '..'));
            foreach ($files as $file) {
                $path = $dir . '/' . $file;
                if (is_dir($path)) {
                    self::rrmdir($path);
                } else {
                    unlink($path);
                }
            }
            rmdir($dir);
        }
    }
}