using System;
using System.Text;
using HDL_ON.DAL.Net;
using HDL_ON.Entity.Enumerative;
using Shared;
using Shared.Net;

namespace HDL_ON.DAL
{
    public static class CommonPage
    {

        public static bool IsRemote;
        //public static AirQuality AirQuality;
        public static Action RefreshAir;
        public static bool FindGateway = false;
        public static bool FindGatewayChilren = false;
        public static string FindGatewayChilrenIPAddress = new NetWiFi ().BroadcastIpAddress.ToString ();
        public static bool LocalPhoneFindDevice = false;
        private static string ip = "0.0.0.0";
        public static System.Net.IPEndPoint EndPoint {
            get {
                try {
                    if (FindGateway) {
                        return new System.Net.IPEndPoint (System.Net.IPAddress.Parse (new NetWiFi ().BroadcastIpAddress.ToString ()), 6000);
                    } else if (FindGatewayChilren) {
                        try {
                            return new System.Net.IPEndPoint (System.Net.IPAddress.Parse (FindGatewayChilrenIPAddress), 6000);
                        } catch {
                            return new System.Net.IPEndPoint (System.Net.IPAddress.Parse ("224.0.168.188"), 6000);
                        }
                    } else {
                        return new System.Net.IPEndPoint (System.Net.IPAddress.Parse (new NetWiFi ().BroadcastIpAddress.ToString ()), 6000);
                    }
                } catch {
                    //防止异常导致程序退出
                    return new System.Net.IPEndPoint (System.Net.IPAddress.Parse ("127.0.0.1"), 6000);
                }
            }
        }

        ///保存设备备注才用gb2312，其他情况用utf8
        public static Encoding MyEncodingUTF8 = Encoding.UTF8;//Get
        public static Encoding MyEncodingGB2312 {
            get {
                try {
                    if (System.Globalization.CultureInfo.InstalledUICulture.EnglishName.ToUpper().StartsWith("CZECH")) {
                        return System.Text.Encoding.GetEncoding (1250);
                    } else {
                        return Encoding.GetEncoding ("gb2312");
                    }
                }catch (Exception ex) {
                    MainPage.Log ("MyEncodingGB2312 Erorr : "+ex.Message);
                    return Encoding.GetEncoding ("gb2312");
                }
            }
        }
        static bool isHttpListenerStart;
        public static DateTime dt;

        //public static byte currentSubnetID = 0;
        public static void InitHttpListener ()
        {
            if (isHttpListenerStart) {
                return;
            }
            HttpListener.Start (new NetWiFi ().IpAddress, 6001);
            HttpListener.EventHandler -= httpListener_EventHandler;
            HttpListener.EventHandler += httpListener_EventHandler;
            isHttpListenerStart = true;
        }
        public static void CloseHttpListener ()
        {
            //isHttpListenerStart = false;
            //return;
            if (!isHttpListenerStart)
                return;
            HttpListener.Close ();
            isHttpListenerStart = false;
        }
        /// <summary>
        /// 初始化处理socket接收的数据 
        /// </summary>
        public static void InitReceiveEvent ()
        {
            Packet.ReceiveEvent += Packet_ReceiveEvent;
        }

        public static float floatChange (byte b1, byte b2, byte b3, byte b4)
        {
            byte [] byteTemp = new byte [4] { b4, b3, b2, b1 };
            return BitConverter.ToSingle (byteTemp, 0);
        }


        static void Packet_ReceiveEvent (byte subnetID, byte deviceID, Command command, byte [] usefullBytes, string revGatewayIP)
        {


        }
        /// <summary>
        /// byte 变字符串
        /// </summary>
        /// <returns>The to hex16.</returns>
        /// <param name="b">The blue component.</param>
        public static string byteToHex16 (byte b)
        {
            string s = Convert.ToString (b, 16).ToUpper (); 
            if (s.Length <= 1) {
                return "0" + s;
            }
            return s;//
        }

        static void httpListener_EventHandler (System.Collections.Specialized.NameValueCollection nameValueCollection, System.IO.Stream outputStream, System.IO.Stream inputStream)
        {
            try {
                if (nameValueCollection ["Command"] != null && nameValueCollection ["Command"].StartsWith ("Get")) {
                    string tempFileName = nameValueCollection ["Command"].Replace ("Get", "");
                    if ("AllFiles" == tempFileName) {
                        byte [] bytes = System.Text.Encoding.UTF8.GetBytes (Newtonsoft.Json.JsonConvert.SerializeObject (MyIO.FileUtils.ReadFiles ()));
                        outputStream.Write (bytes, 0, bytes.Length);
                        outputStream.Flush ();
                    } else {
                        byte [] bytes;
                        if (!MyIO.FileUtils.Exists (tempFileName)) {
                            bytes = System.Text.Encoding.UTF8.GetBytes ("文件名不存在！");
                            outputStream.Write (bytes, 0, bytes.Length);
                            outputStream.Flush ();
                            return;
                        }
                        System.IO.FileStream fs = new System.IO.FileStream (Application.RootPath + tempFileName, System.IO.FileMode.Open);
                        bytes = new byte [fs.Length];
                        fs.Read (bytes, 0, bytes.Length);
                        fs.Close ();
                        outputStream.Write (bytes, 0, bytes.Length);
                        outputStream.Flush ();
                    }
                } else if (nameValueCollection ["Command"].StartsWith ("Upload")) {
                    string path = Application.RootPath + nameValueCollection ["Command"].Replace ("Upload", "");
                    string dePath = nameValueCollection ["Command"].Replace ("Upload", "");
                } else {
                    byte [] bytes = System.Text.Encoding.UTF8.GetBytes ("请求命令无效！");
                    outputStream.Write (bytes, 0, bytes.Length);
                    outputStream.Flush ();
                }
            } catch (Exception ex) {
                MainPage.Log ("httpListener_EventHandler" + ex.ToString ());
            }
        }

        /// <summary>
        /// 随机数高位
        /// </summary>
        public static byte RandomHigh;
        /// <summary>
        /// 随机数低位
        /// </summary>
        public static byte RandomLow;

        /// <summary>
        /// Updates Device's remake.
        /// </summary>
        public static void UpdateRemark (byte subnetID, byte deviceID, string remark)
        {
            byte [] updateBytes = new byte [20];
            byte [] remakeBytes = MyEncodingGB2312.GetBytes (remark);
            Array.Copy (remakeBytes, 0, updateBytes, 0, remakeBytes.Length < 20 ? remakeBytes.Length : 20);
            Control.ControlBytesSend (Command.UpdataRemake, subnetID, deviceID, updateBytes);
        }

        /// <summary>
        /// 监听请求的Http端口
        /// </summary>
        public static int Port = 5555;
        static void httpListener_EventHandler (string rawUrl, System.IO.Stream outputStream, System.IO.Stream inputStream)
        {
            foreach (var musicInfo in MusicInfo.MusicInfoList) {
                if ("audio-item-" + musicInfo.ID == rawUrl.TrimStart ('/')) {
                    var file = new System.IO.FileStream (musicInfo.Data, System.IO.FileMode.Open, System.IO.FileAccess.Read);
                    byte [] bytes = new byte [1024];
                    try {
                        while (file.CanRead) {
                            int len = file.Read (bytes, 0, bytes.Length);
                            if (len == 0) {
                                break;
                            }
                            outputStream.Write (bytes, 0, len);
                        }
                    } catch { }
                    file.Close ();
                    break;
                }
            }
        }
    }
}