using Hardware.Info;
using System;
using System.Linq;
using System.Net;
using System.Net.Sockets;

namespace XiaoZhiSharp
{
    public class Global
    {
        public static IHardwareInfo HardwareInfo { get; } = new HardwareInfo();

        public static bool IsDebug { get; set; } = false;
        public static bool IsAudio { get; set; } = true;
        public static bool IsMcp { get; set; } = false;
        public static int SampleRate_WaveOut { get; set; } = 24000;
        public static int SampleRate_WaveIn { get; set; } = 16000;
        public static int VadThreshold { get; set; } = 20; // 语音活动检测阈值，单位为毫秒

        public static string OS { get; set; }
        public static string LocalIP { get; set; }

        static Global()
        {
            HardwareInfo.RefreshOperatingSystem();
            OS = $"{HardwareInfo.OperatingSystem.Name} {HardwareInfo.OperatingSystem.Version}";

            var host = Dns.GetHostEntry(Dns.GetHostName());
            var ipAddr = host.AddressList.FirstOrDefault(ip => ip.AddressFamily == AddressFamily.InterNetwork);
            LocalIP = ipAddr?.ToString();
        }

        /// <summary>
        /// 格式化字节数为易读的字符串
        /// 自动选择合适的单位（B, KB, MB, GB, TB）
        /// </summary>
        /// <param name="bytes">字节数</param>
        /// <returns>格式化后的字符串</returns>
        public static string FormatBytes(ulong bytes)
        {
            if (bytes == 0) return "0 B";

            string[] suffixes = { "B", "KB", "MB", "GB", "TB" };
            int counter = 0;
            decimal number = bytes;

            // 循环除以1024，直到找到合适的单位
            while (Math.Round(number / 1024) >= 1 && counter < suffixes.Length - 1)
            {
                number /= 1024;
                counter++;
            }

            // 返回格式化后的字符串（保留1位小数）
            return $"{number:n1} {suffixes[counter]}";
        }
    }
}