<?

namespace App\Services;

use App\Events\Event;
use App\Helpers\Helper;
use Aws\Exception\AwsException;
use Illuminate\Support\Facades\Storage;
use Illuminate\Http\Client\Request;
use Aws\S3\S3Client as S3ClientInstance;

class FileUploadService
{
    /**
     * This function uploads a file to Amazon S3 and returns a success message or an error message if the
     * upload fails.
     * 
     * @param Request request an instance of the Request class, which contains information about the
     * current HTTP request
     * 
     * @return If the file is successfully uploaded to S3, the function returns a JSON response with the
     * message "File uploaded successfully". If there is an error during the upload, the function returns a
     * JSON response with the error message and a 500 status code.
     */
    public function uploadFile($file, $event)
    {

        // try {
        //     // Upload the file to S3
        //     $file = $file;
        //     $fileName = $this->generateCustomFilename($file);
        //     /* This line of code is uploading the file to Amazon S3 and storing it in the specified
        //         location with the specified filename. The `storeAs()` method is a Laravel method
        //         that saves the uploaded file to a disk (in this case, the S3 disk) with a custom
        //         filename. The first parameter specifies the path where the file should be stored,
        //         the second parameter specifies the custom filename, and the third parameter
        //         specifies the disk where the file should be stored (in this case, the S3 disk). The
        //         method returns the path where the file was stored. */
        //     $path = $file->storeAs('path/to/your/desired/location', $fileName, 's3');
        //     if ($path) {
        //         $event->file_url = $path;
        //     }
        //     // Do something with the uploaded file path
        //     if ($event->save())
        //         return response()->json(['message' => 'File uploaded successfully']);
        // } catch (AwsException $e) {
        //     // Handle any errors that occur during the upload
        //     return response()->json(['error' => $e->getMessage()], 500);
        // }
        // require 'vendor/autoload.php';

        // $s3 = new S3ClientInstance([
        //     'region'  => config('filesystems.disks.s3.region'),
        //     'version' => 'latest',
        //     'credentials' => [
        //         'key'    => config('filesystems.disks.s3.key'),
        //         'secret' => config('filesystems.disks.s3.secret'),
        //     ]
        // ]);

        // $path = $s3->putObject([
        //     'Bucket' => config('filesystems.disks.s3.bucket'),
        //     'Key'    => $fileName,
        //     'SourceFile' => $file
        // ]);
        // $originalFileName = $file->getClientOriginalName();
        $serverFileName = $this->generateCustomFilename($file);
        $path = Storage::disk(Helper::getMediaServerType())
            ->put($serverFileName, file_get_contents($file), 'event_uploads');

        if ($path) {
            $event->file_url = $path;
        }
        // Do something with the uploaded file path
        if ($event->save())
            return response()->json(['message' => 'File uploaded successfully']);
    }

    /**
     * This PHP function generates a custom filename for a given file by appending a timestamp and file
     * extension.
     * 
     * @param file The  parameter is an instance of the UploadedFile class, which represents a file
     * uploaded through a form. It contains information about the file, such as its name, size, and MIME
     * type.
     * 
     * @return a string that represents a custom filename for a given file. The filename is generated by
     * concatenating the current timestamp with the file extension.
     */
    private function generateCustomFilename($file)
    {
        $timestamp = time();
        /* ` = ->getClientOriginalExtension();` is retrieving the original extension of
        the uploaded file. This is useful for generating a custom filename for the file, as it
        allows the extension to be included in the filename. */
        $extension = $file->getClientOriginalExtension();
        $fileName = $timestamp . '.' . $extension;

        return $fileName;
    }
}