using System;
using System.Text;

namespace MAX.Core.Cryptography;

public class Base64Helper
{
	/// <summary>
	/// Base64加密
	/// </summary>
	/// <param name="codeName">加密采用的编码方式</param>
	/// <param name="source">待加密的明文</param>
	/// <returns></returns>
	public static string Encode(string source, Encoding encode)
	{
		string encodeValue = "";
		byte[] bytes = encode.GetBytes(source);
		try
		{
			encodeValue = Convert.ToBase64String(bytes);
		}
		catch
		{
			encodeValue = source;
		}
		return encodeValue;
	}

	/// <summary>
	/// Base64加密，采用utf8编码方式加密
	/// </summary>
	/// <param name="source">待加密的明文</param>
	/// <returns>加密后的字符串</returns>
	public static string Encode(string source)
	{
		return Encode(source, Encoding.UTF8);
	}

	/// <summary>
	/// Base64解密
	/// </summary>
	/// <param name="codeName">解密采用的编码方式，注意和加密时采用的方式一致</param>
	/// <param name="result">待解密的密文</param>
	/// <returns>解密后的字符串</returns>
	public static string Decode(string result, Encoding encode)
	{
		string decode = "";
		byte[] bytes = Convert.FromBase64String(result);
		try
		{
			decode = encode.GetString(bytes);
		}
		catch
		{
			decode = result;
		}
		return decode;
	}

	/// <summary>
	/// Base64解密，采用utf8编码方式解密
	/// </summary>
	/// <param name="result">待解密的密文</param>
	/// <returns>解密后的字符串</returns>
	public static string Decode(string result)
	{
		return Decode(result, Encoding.UTF8);
	}
}