using UnityEngine;
using System.IO;
using System.Text;

namespace BF
{
    public static class GameLaunchUtils
    {
        public const string ABCONFIG_FILE_NAME = "ab_config.bytes";

        static StringBuilder md5StringBuilder = new StringBuilder();

        public static string GetFileMD5(string filePath)
        {
            if (!File.Exists(filePath))
            {
                return string.Empty;
            }
            var content = File.ReadAllBytes(filePath);
            return GetFileMD5(content);
        }

        public static string GetFileMD5(byte[] content)
        {
            var md5 = System.Security.Cryptography.MD5.Create();
            var md5Bytes = md5.ComputeHash(content);
            for (var m = 0; m < md5Bytes.Length; m++)
            {
                md5StringBuilder.Append(md5Bytes[m].ToString("x2"));
            }

            var s = md5StringBuilder.ToString();
            md5StringBuilder.Remove(0, md5StringBuilder.Length);
            return s;
        }
    }
}