using System;
using System.Collections.Generic;
using System.IO;
using System.Xml;
using System.Text;

namespace CB.TVUCenter.Config
{
    public class TVConfigs
    {
        private static string configPath = AppDomain.CurrentDomain.BaseDirectory + "Config\\TV.config";
        private static long _version = 0;
        private static TVConfigInfo _config = null;

        private TVConfigs() { }

        static TVConfigs()
        {
            LoadConfig();
        }
        //加载配置数据
        public static void LoadConfig()
        {
            if (!File.Exists(configPath))
                return;

            var config = new TVConfigInfo();
            XmlDocument doc = new XmlDocument();
            doc.Load(configPath);

            var root = doc.SelectSingleNode("TVConfig");
            if (null != root)
            {
                var node = root.SelectSingleNode("Debug");
                config.Debug = null == node ? false : (node.InnerText.Trim() == "1" ? true : false);

                node = root.SelectSingleNode("DecryptKey");
                config.DecryptKey = null == node ? "E03F49114203ABCD" : node.InnerText.Trim();

                node = root.SelectSingleNode("ExEncryptKey");
                config.ExEncryptKey = null == node ? "5pyA5aW955qE55S16KeG6LWw5Yq/5Zu+5Zyo5b2p5ZCn572R" : node.InnerText.Trim();

                node = root.SelectSingleNode("TrendChartEncryptKey");
                config.TrendChartEncryptKey = null == node ? "5pyA5aW955qE55S16KeG6LWw5Yq/5Zu+5Zyo5b2p5ZCn572R" : node.InnerText.Trim();

                node = root.SelectSingleNode("InitImg");
                config.InitImg = null == node ? "" : node.InnerText.Trim();

                node = root.SelectSingleNode("InitVerticalImg");
                config.InitVerticalImg = null == node ? "" : node.InnerText.Trim();

                node = root.SelectSingleNode("BackgroundImg");
                config.BackgroundImg = null == node ? "" : node.InnerText.Trim();

                node = root.SelectSingleNode("BackgroundVerticalImg");
                config.BackgroundVerticalImg = null == node ? "" : node.InnerText.Trim();

                node = root.SelectSingleNode("ClearOnlineUserTime");
                config.ClearOnlineUserTime = null == node ? 5 : CB.Common.TypeConverter.StrToInt(node.InnerText.Trim());

                node = root.SelectSingleNode("UnLockTime");
                config.UnLockTime = null == node ? 120 : CB.Common.TypeConverter.StrToInt(node.InnerText.Trim());

                node = root.SelectSingleNode("ApiCallTimes");
                config.ApiCallTimes = null == node ? 60 : CB.Common.TypeConverter.StrToInt(node.InnerText.Trim());

                node = root.SelectSingleNode("ApiCallCycle");
                config.ApiCallCycle = null == node ? 1 : CB.Common.TypeConverter.StrToInt(node.InnerText.Trim());

                node = root.SelectSingleNode("AreaVersion");
                config.AreaVersion = null == node ? 0 : CB.Common.TypeConverter.StrToInt(node.InnerText.Trim());

                node = root.SelectSingleNode("ImgVersion");
                config.ImgVersion = null == node ? 0 : CB.Common.TypeConverter.StrToInt(node.InnerText.Trim());

                node = root.SelectSingleNode("ShowByBrowser");
                config.ShowByBrowser = null == node ? true : (node.InnerText.Trim() == "1" ? true : false);
            }

            _version = File.GetLastWriteTime(configPath).Ticks;
            _config = config;
        }
        //获取配置数据
        public static TVConfigInfo GetConfig()
        {
            if (null == _config)
            {
                LoadConfig();
                return _config;
            }

            if (_version != File.GetLastWriteTime(configPath).Ticks)
                LoadConfig();

            return _config;
        }

        public static bool UpdateConfig(TVConfigInfo entity)
        {
            string str = ResetLoadConfig(entity);
            using (StreamWriter writer = new StreamWriter(configPath, false, System.Text.Encoding.UTF8, str.Length))
            {
                writer.Write(str);
            }
            return true;
        }

        private static string ResetLoadConfig(TVConfigInfo entity)
        {
            StringBuilder sb = new StringBuilder(2000);
            sb.Append("<?xml version=\"1.0\" encoding=\"utf-8\" ?>\r\n");
            sb.Append("<TVConfig>\r\n");
            sb.AppendFormat("<Debug>{0}</Debug>\r\n", entity.Debug ? 1 : 0);
            sb.AppendFormat("<DecryptKey>{0}</DecryptKey>\r\n", entity.DecryptKey);
            sb.AppendFormat("<ExEncryptKey>{0}</ExEncryptKey>\r\n", entity.ExEncryptKey);
            sb.AppendFormat("<TrendChartEncryptKey>{0}</TrendChartEncryptKey>\r\n", entity.TrendChartEncryptKey);
            sb.AppendFormat(" <InitImg>{0}</InitImg>\r\n", entity.InitImg);
            sb.AppendFormat("<InitVerticalImg>{0}</InitVerticalImg>\r\n", entity.InitVerticalImg);
            sb.AppendFormat(" <HorizontalImg>{0}</HorizontalImg>\r\n", entity.BackgroundImg);
            sb.AppendFormat("<VerticalImg>{0}</VerticalImg>\r\n", entity.BackgroundVerticalImg);
            sb.AppendFormat("<ClearOnlineUserTime>{0}</ClearOnlineUserTime>\r\n", entity.ClearOnlineUserTime);
            sb.AppendFormat("<UnLockTime>{0}</UnLockTime>\r\n", entity.UnLockTime);
            sb.AppendFormat("<ApiCallTimes>{0}</ApiCallTimes>\r\n", entity.ApiCallTimes);
            sb.AppendFormat("<ApiCallCycle>{0}</ApiCallCycle>\r\n", entity.ApiCallCycle);
            sb.AppendFormat("<AreaVersion>{0}</AreaVersion>\r\n", entity.AreaVersion);
            sb.AppendFormat("<ImgVersion>{0}</ImgVersion>\r\n", entity.ImgVersion);
            sb.AppendFormat("<ShowByBrowser>{0}</ShowByBrowser>\r\n", entity.ShowByBrowser ? 1 : 0);
            sb.Append("</TVConfig>");
            return sb.ToString();
        }
    }
}