exchange-2.0/app/Classes/Modules/Documents/Services/Convert64ToFile.php

<?php

namespace App\Classes\Modules\Documents\Services;

use Illuminate\Support\Str;
use Image;

class Convert64ToFile
{
    /**
     * @param array|null file_set
     * @return array|bool
     */
    public function convert($file_set = [], $path = 'file')
    {
        $file_info = [];
        $folder_path = $this->generateFolder($path);

        foreach ($file_set as $key => $row) {

            $file_data = $row;
            $filename = (string) Str::uuid();

            $f = finfo_open();
            $mime_type = finfo_file($f, $file_data, FILEINFO_MIME_TYPE);
            
            $extension = '';
            switch ($mime_type) {
                case 'image/gif':
                    $extension = 'gif';
                    break;
                case 'image/png':
                    $extension = 'png';
                    break;
                case 'image/jpeg':
                    $extension = 'jpg';
                    break;
                case 'application/pdf':
                    $extension = 'pdf';
                    break;
            }

            if (empty($extension)) {
                return false;
            }

            $filename_with_ext = $filename . '.' . $extension;

            if ($extension != 'pdf') {
                $img = Image::make($file_data)->save($folder_path . '/' . $filename_with_ext);
                $file = $this->generateImages($path, $filename_with_ext, $filename, $extension);
            }
            else {
                $file_data = explode('base64,', $file_data);
                $file_data = base64_decode($file_data[1]);
                $file = $this->generatePdf($path, $file_data, $filename, $extension);
            }

            $file_info[] = [
                'path' => $path,
                'filename' => $filename_with_ext,
                'mime_type' => $mime_type,
                'extension' => $extension,
                'file_info' => empty($file) ? [] : $file,
            ];
        }

        return $file_info;
    }

    /**
     * @param string|null path
     * @param string|null pdfdata
     * @param string|null filename
     * @param string|null extension
     */
    public static function generatePdf($path = '', $pdfdata = '', $filename = '', $extension = '')
    {
        $file_info = [];
        $file = \File::put(storage_path($path) . '/' . $filename . '.' . $extension, $pdfdata);
        $file_info['original']['file'] =  'storage/' . $path . '/' . $filename . '.' . $extension;
        $file_info['large']['file'] =  'storage/' . $path . '/' . $filename . '.' . $extension;
        $file_info['medium']['file'] =  'storage/' . $path . '/' . $filename . '.' . $extension;
        $file_info['small']['file'] =  'storage/' . $path . '/' . $filename . '.' . $extension;
        
        return $file_info;
    }

    /**
     * @param string|null path
     * @param string|null file
     * @param string|null filename
     * @param string|null extension
     */
    public function generateImages($path = '', $file = '', $filename = '', $extension = '')
    {
        $file_info = [];
        
        $img = Image::make(storage_path($path) . '/' . $file);
        $file_info['original']['file'] = 'storage/' . $path . '/' . $file;
        $file_info['original']['width'] = $img->width();
        $file_info['original']['height'] = $img->height();

        $img->widen(800, function ($constraint) {
            $constraint->upsize();
        })->heighten(800, function ($constraint) {
            $constraint->upsize();
        });
        $img->save(storage_path($path) . '/' . $filename . '_' . 'l.' . $extension);
        $file_info['large']['file'] = 'storage/' . $path . '/' . $filename . '_' . 'l.' . $extension;
        $file_info['large']['width'] = $img->width();
        $file_info['large']['height'] = $img->height();

        $img->widen(480, function ($constraint) {
            $constraint->upsize();
        })->heighten(480, function ($constraint) {
            $constraint->upsize();
        });
        $img->save(storage_path($path) . '/' . $filename . '_' . 'm.' . $extension);
        $file_info['medium']['file'] = 'storage/' . $path . '/' . $filename . '_' . 'm.' . $extension;
        $file_info['medium']['width'] = $img->width();
        $file_info['medium']['height'] = $img->height();

        $img->widen(320, function ($constraint) {
            $constraint->upsize();
        })->heighten(320, function ($constraint) {
            $constraint->upsize();
        });
        $img->save(storage_path($path) . '/' . $filename . '_' . 's.' . $extension);
        $file_info['small']['file'] = 'storage/' . $path . '/' . $filename . '_' . 's.' . $extension;
        $file_info['small']['width'] = $img->width();
        $file_info['small']['height'] = $img->height();

        return $file_info;
    }

    /**
     * @param string|null set_path
     */
    public  function generateFolder($set_path = '')
    {
        $folder = storage_path($set_path);

        \File::isDirectory($folder) or \File::makeDirectory($folder, 0777, true, true); //check folder is exist
        return $folder;
    }
}