<?php
require_once __DIR__ . '/../vendor/autoload.php';
require_once __DIR__ . '/aws_config.php';

use Aws\S3\S3Client;
use Aws\S3\Exception\S3Exception;

class S3Service {
    private static $s3Client;

    private static function getS3Client() {
        if (!self::$s3Client) {
            self::$s3Client = new S3Client([
                'version'     => 'latest',
                'region'      => AWS_REGION,
                'credentials' => [
                    'key'    => AWS_ACCESS_KEY_ID,
                    'secret' => AWS_SECRET_ACCESS_KEY,
                ],
            ]);
        }
        return self::$s3Client;
    }

    public static function uploadFile($filePath, $key, $bucket = null) {
        $bucket = $bucket ?: AWS_S3_BUCKET;
        $s3 = self::getS3Client();

        try {
            $result = $s3->putObject([
                'Bucket'     => $bucket,
                'Key'        => $key,
                'SourceFile' => $filePath,
                'ACL'        => 'public-read', // Make file publicly readable
            ]);
            return $result['ObjectURL'];
        } catch (S3Exception $e) {
            // Handle exception
            error_log($e->getMessage());
            return null;
        }
    }
}
?>