using System;

using System.Collections.Generic;

using System.Configuration;

using System.Data;

using System.Linq;

using System.Windows;

using ESRI.ArcGIS.esriSystem;

using System.Xml.Serialization;

using System.IO;

using SWGW.Properties;

using System.Diagnostics;

namespace SWGW

{

    /// <summary>

    /// App.xaml 的交互逻辑

    /// </summary>

    public partial class App : Application

    {

        #region License

        protected override void OnStartup(StartupEventArgs e)

        {

            SettingsManager.OnStartup();

            base.OnStartup(e);

            if (!LicenseManager.InitializeLicense.InitializeEngineLicense())

            {

                MessageBox.Show("无法初始化ArcGIS Engine的授权或地球扩展。截止...");

            }

        }

        #endregion

        #region 私有类

        static class SettingsManager

        {

            #region Class Members

            static Settings settings = new Settings();

            const string applicationDirectory = "SWGW";

            //配置文件名称

            const string settingsFileName = "XXXX.xml";

            #endregion Class Members

            #region Constructor

            static SettingsManager()

            {

                EnsureDirectoryExists();

            }

            #endregion Constructor

            #region Properties

            public static Settings ApplicationSettings

            {

                get { return settings; }

            }

            #endregion Properties

            #region Startup, Exit

            public static void OnStartup()

            {

                LoadSettings();

            }

            public static void OnExit()

            {

                SaveSettings();

            }

            #endregion Overrides

            #region Other Functions

            static string SettingsFileName

            {

                get

                {

                    return Path.Combine(

                        Path.Combine(

                        Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData),

                        applicationDirectory),

                        settingsFileName);

                }

            }

            static void LoadSettings()

            {

                Settings tmp;

                try

                {

                    XmlSerializer xml = new XmlSerializer(typeof(Settings));

                    using (Stream stream = new System.IO.FileStream(SettingsFileName,

                        FileMode.Open, FileAccess.Read, FileShare.Read))

                    {

                        tmp = (Settings)xml.Deserialize(stream);

                    }

                }

                catch (Exception e)

                {

                    Trace.WriteLine(e.Message);

                    return;

                }

                settings = tmp;

            }

            static void SaveSettings()

            {

                try

                {

                    XmlSerializer xml = new XmlSerializer(typeof(Settings));

                    using (Stream stream = new System.IO.FileStream(SettingsFileName,

                           FileMode.Create, FileAccess.Write, FileShare.None))

                    {

                        xml.Serialize(stream, settings);

                    }

                }

                catch (Exception e)

                {

                    Trace.WriteLine(e.Message);

                }

            }

            [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1031:DoNotCatchGeneralExceptionTypes")]

            static void EnsureDirectoryExists()

            {

                try

                {

                    DirectoryInfo info = new DirectoryInfo(

                        Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData),

                        applicationDirectory));

                    if (!info.Exists)

                    {

                        info.Create();

                    }

                }

                catch (Exception ex)

                {

                    Trace.WriteLine(ex.Message);

                }

            }

            #endregion Other Functions

        }

        #endregion

    }

}