//
//  String+Extension.swift
//  Runner
//
//  Created by Destiny on 2025/6/18.
//

import Foundation
import CommonCrypto

extension String {
    
    /// 原生md5
    public var md5: String {
        guard let data = data(using: .utf8) else {
            return self
        }
        var digest = [UInt8](repeating: 0, count: Int(CC_MD5_DIGEST_LENGTH))
        
        #if swift(>=5.0)
        
        _ = data.withUnsafeBytes { (bytes: UnsafeRawBufferPointer) in
            return CC_MD5(bytes.baseAddress, CC_LONG(data.count), &digest)
        }
        
        #else
        
        _ = data.withUnsafeBytes { bytes in
            return CC_MD5(bytes, CC_LONG(data.count), &digest)
        }
        
        #endif
        
        return digest.map { String(format: "%02x", $0) }.joined()
        
    }
    
}