using System;

namespace XGame.Framework.Utils
{
    public static class StringUtils
    {
        public static string Format(this string format, params object[] args)
        {
            if (string.IsNullOrEmpty(format))
            {
                return string.Empty;
            }
            if (args == null || args.Length <= 0)
                return format;
            else
                return string.Format(format, args);
        }

        /// <summary>
        /// 反斜杠替换为正斜杠
        /// </summary>
        /// <param name="path"></param>
        /// <returns></returns>
        public static string ReplaceSlash(this string path)
        {
            return path.Replace("\\", "/");
        }

        /// <summary>
        /// 字节数组转16进制字符串
        /// 每个字节转成两位的十六进制字符串
        /// </summary>
        /// <param name="bytes"></param>
        /// <returns></returns>
        public static string ToHexString(this byte[] bytes)
        {
            var length = bytes?.Length ?? 0;
            if (length == 0)
                return string.Empty;
            var sb = StringBuilderUtils.Acquire();
            for (int i = 0; i < length; i++)
            {
                sb.Append(bytes[i].ToString("X2"));
            }
            var result = sb.ToString();
            StringBuilderUtils.Release(sb);
            Log.Debug($"ToHexString Length:{length} result Length:{result.Length} val:{result}");
            return result;
        }

        /// <summary>
        /// 16进制字符串转字节数组 
        /// 谨慎使用
        /// byte[].ToHexString()的逆向
        /// </summary>
        /// <param name="hexString"></param>
        /// <returns></returns>
        public static byte[] ToHexBytes(this string hexString)
        {
//#if UNITY_EDITOR || DEBUG
//            hexString = CheakHexString(hexString);
//#endif
//            hexString = hexString.Replace(" ", "");
            byte[] bytes = new byte[hexString.Length / 2];
            for (int i = 0; i < bytes.Length; i++)
                bytes[i] = Convert.ToByte(hexString.Substring(i * 2, 2), 16);
            return bytes;
        }
        ///// <summary>
        ///// 校验16进制字符串
        ///// </summary>
        ///// <param name="strBuffHex">16进制字符串</param>
        ///// <returns></returns>
        //private static string CheakHexString(string strBuffHex)
        //{
        //    strBuffHex = strBuffHex.Trim();     //去除前后空字符
        //    strBuffHex = strBuffHex.Replace(',', ' ');  //去掉英文逗号
        //    strBuffHex = strBuffHex.Replace('，', ' '); //去掉中文逗号
        //    strBuffHex = strBuffHex.Replace("0x", "");  //去掉0x
        //    strBuffHex = strBuffHex.Replace("0X", "");  //去掉0X
        //    strBuffHex = Regex.Replace(Regex.Replace(strBuffHex, @"(?i)[^a-f\d\s]+", ""), "\\w{3,}", m => string.Join(" ", Regex.Split(m.Value, @"(?<=\G\w{2})(?!$)").Select(x => x.PadLeft(2, '0')).ToArray())).ToUpper();
        //    return strBuffHex;
        //}
    }
}