using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Xml;
using System.Reflection;
using System.Xml.Serialization;
using System.IO;
using System.Windows.Forms;

namespace EduNetworkBuilder
{
    /// <summary>
    /// We have settings that need to be loaded and saved.  Mono has issues with 
    /// properties.settings.default stuff, so we need to load/save from an xml file
    /// when we are using mono.  So this class does that
    /// </summary>
    public class NBSettings
    {
        public string LastPath = "";
        public List<string> ScoreList = new List<string>();
        public bool AutoStartPuzzles = true;
        public string ChosenLanguage = "en";
        public bool LanguageHasBeenChosen = false;
        public int MainWindowX = -1;
        public int MainWindowY = -1;
        public int MainWindowWidth = -1;
        public int MainWindowHeight = -1;
        public string ProcessingLevel = "none";

        public NBSettings()
        {
            //We need this for reflection
        }
        public NBSettings(NBSettings fromSettings)
        {
            if (fromSettings == null) return; //Break if we are going to error out.
            Duplicate(fromSettings, this);
        }

        static void Duplicate(NBSettings FromClass, NBSettings ToClass)
        {
            if (FromClass == null) return; //Break if we are going to error out.
            if (ToClass == null) return; //Break if we are going to error out.
            //
            ToClass.LastPath = FromClass.LastPath;
            ToClass.AutoStartPuzzles = FromClass.AutoStartPuzzles;
            ToClass.ChosenLanguage = FromClass.ChosenLanguage;
            ToClass.LanguageHasBeenChosen = FromClass.LanguageHasBeenChosen;
            ToClass.MainWindowX = FromClass.MainWindowX;
            ToClass.MainWindowY = FromClass.MainWindowY;
            ToClass.MainWindowHeight = FromClass.MainWindowHeight;
            ToClass.MainWindowWidth = FromClass.MainWindowWidth;

            foreach (string one in FromClass.ScoreList)
            {
                if (!ToClass.ScoreList.Contains(one))
                    ToClass.ScoreList.Add(one);
            }
        }

        public NBSettings(bool UsingMono)
        {
            if(UsingMono)
            {
                try
                {
                    //Try loading from xml file
                    string filename = GetFilename();
                    if (File.Exists(filename))
                    {
                        XmlSerializer sr = new XmlSerializer(this.GetType());
                        TextReader Reader = new StreamReader(filename);
                        NBSettings settings = (NBSettings)sr.Deserialize(Reader);
                        Duplicate(settings, this);
                        Reader.Close();
                    }
                }
                catch (Exception e)
                {
                    MessageBox.Show("Error Loading Settings:\n" + e.ToString(),"Error Loading Settings");
                }
            }
            else
            {
                LastPath = Properties.Settings.Default.LastPath;
                AutoStartPuzzles = Properties.Settings.Default.AutoStartPuzzles;
                ChosenLanguage = Properties.Settings.Default.ChosenLanguage;
                LanguageHasBeenChosen = Properties.Settings.Default.LanguageHasBeenChosen;
                MainWindowX = Properties.Settings.Default.MainWindowX;
                MainWindowY = Properties.Settings.Default.MainWindowY;
                MainWindowHeight = Properties.Settings.Default.MainWindowHeight;
                MainWindowWidth = Properties.Settings.Default.MainWindowWidth;

                foreach(string one in Properties.Settings.Default.ScoreList)
                {
                    if (!ScoreList.Contains(one))
                        ScoreList.Add(one);
                }
            }
        }

        public static string GetFilename()
        {
            string BaseDir = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData);
            string FileName = "EduNetworkBuilder_config.xml";
            return Path.Combine(BaseDir, FileName);
        }


        public void Save()
        {
            Save(NB.IsRunningOnMono());
        }

        public void Save(bool UsingMono)
        {
            if(UsingMono)
            {
                //Save it to an XML file.
                try
                {
                    string filename = GetFilename();
                    if(!Directory.Exists(Path.GetDirectoryName(filename)))
                    {
                        Directory.CreateDirectory(Path.GetDirectoryName(filename));
                    }
                    XmlSerializer sr = new XmlSerializer(this.GetType());
                    TextWriter writer = new StreamWriter(filename);
                    sr.Serialize(writer, this);
                    writer.Close();
                }
                catch(Exception e)
                {
                    MessageBox.Show("ERROR Saving Settings:\n" + e.ToString(),"Error saving settings.");
                }
            }
            else
            {
                if (Properties.Settings.Default.ScoreList == null)
                    Properties.Settings.Default.ScoreList = new System.Collections.Specialized.StringCollection();

                Properties.Settings.Default.LastPath = LastPath;
                Properties.Settings.Default.AutoStartPuzzles = AutoStartPuzzles;
                Properties.Settings.Default.ChosenLanguage = ChosenLanguage;
                Properties.Settings.Default.LanguageHasBeenChosen = LanguageHasBeenChosen;
                Properties.Settings.Default.MainWindowX = MainWindowX;
                Properties.Settings.Default.MainWindowY = MainWindowY;
                Properties.Settings.Default.MainWindowHeight = MainWindowHeight;
                Properties.Settings.Default.MainWindowWidth = MainWindowWidth;

                Properties.Settings.Default.ScoreList.Clear();
                foreach(string One in ScoreList)
                {
                    Properties.Settings.Default.ScoreList.Add(One);
                }
                Properties.Settings.Default.Save();
            }
        }

    }
}