using System;
using System.IO;
using System.Collections.Generic;
using Server;

namespace KCS
{

    public partial class KCS
    {
        public static void Initialize()
        {
            EventSink.WorldSave += new WorldSaveEventHandler(Save);
            Load();
        }



        private static Dictionary<string, bool> mRegSyst = new Dictionary<string, bool>();
        public static Dictionary<string, bool> RegisteredSystem { get { return mRegSyst; } }

        public static void RegisterSystem(string system)
        {
            if (mRegSyst.ContainsKey(system))
                return;

            Type type = Type.GetType(system);
            if (type == null)
            {
                Console.WriteLine("Unauthorized Addon Detected: " + system);
                return;
            }

            KCSSystem mSyst = (KCSSystem)Activator.CreateInstance(type);
            if (mSyst != null)
            {
                mRegSyst.Add(system, true);
                Console.WriteLine("Kitsunic System Registered:" + system);
            }
        }

        public static bool SystEnabled(string system)
        {
            return mRegSyst.ContainsKey(system) && (bool)mRegSyst[system];
        }

        public static void SystDisabled(string system)
        {
            if (mRegSyst.ContainsKey(system))
            {
                Type type = ScriptCompiler.FindTypeByFullName(system);
                if (type != null)
                {
                    if (!Directory.Exists("Kitsunic"))
                        Directory.CreateDirectory("Kitsunic");

                    KCSSystem Syst = (KCSSystem)Activator.CreateInstance(type);
                    if (Syst != null)
                    {
                        Syst.StartSave("Kitsunic/");
                        Syst.Disable();
                    }
                    mRegSyst[system] = false;
                }
            }
            else
                Console.WriteLine("Unauthorized System - {0} - Disabling is Impossible" + system);
        }

        public static void EnableSystem(string system)
        {
            if (mRegSyst.ContainsKey(system))
            {
                Type type = ScriptCompiler.FindTypeByFullName(system);
                if (type != null)
                {
                    if (!Directory.Exists("Kitsunic"))
                        Directory.CreateDirectory("Kitsunic");

                    KCSSystem Syst = (KCSSystem)Activator.CreateInstance(type);
                    if (Syst != null)
                    {
                        Syst.StartLoad("Kitsunic/");
                        Syst.Enable();
                    }
                    mRegSyst[system] = true;
                }
            }
            else
                Console.WriteLine("Unauthorized System - {0} - Enabling is Impossible" + system);
        }

        public static void Save(WorldSaveEventArgs mArgs)
        {
            if (!Directory.Exists("Saves/Kitsunic"))
                Directory.CreateDirectory("Saves/Kitsunic");

            string filename = "Kitsunic.sav";
            string path = @"Saves/Kitsunic/";
            string pfilename = path + filename;
            DateTime start = DateTime.Now;

            Console.WriteLine();
            Console.WriteLine();
            Console.WriteLine(". . . . . . . . .");
            Console.WriteLine("Brewing Kitsunic Potions. . .");

            try
            {
                using (FileStream mFileStream = new FileStream(pfilename, FileMode.OpenOrCreate, FileAccess.Write))
                {
                    BinaryFileWriter writer = new BinaryFileWriter(mFileStream, true);

                    writer.Write((int)mRegSyst.Count);
                    foreach ( KeyValuePair<string,bool> keyValuePair in mRegSyst )
                    {
                        Type type = ScriptCompiler.FindTypeByFullName(keyValuePair.Key);
                        if(type != null)
                        {
                            writer.Write(keyValuePair.Key);
                            writer.Write(keyValuePair.Value);

                            if(keyValuePair.Value)
                            {
                                KCSSystem system = (KCSSystem)Activator.CreateInstance(type);
                                if (system != null)
                                    system.StartSave(path);
                            }
                        }
                    }

                    writer.Close();
                    mFileStream.Close();
                }

                Console.WriteLine("Completing in {0:F1} Seconds.", (DateTime.Now - start).TotalSeconds);
                Console.WriteLine(". . . . . . .");
                Console.WriteLine();
            }
            catch (Exception err)
            {
                Console.WriteLine("Saving Failed. Reason:" + err);
            }
        }

        public static void Load()
        {
            if (!Directory.Exists("Saves/Kitsunic"))
                return;

            string filename = "Kitsunic.sav";
            string path = @"Saves/Kitsunic/";
            string pfilename = path + filename;
            DateTime start = DateTime.Now;

            Console.WriteLine();
            Console.WriteLine(". . . . . . . . .");
            Console.WriteLine("Brewing Kitsunic Toxins. . .");

            try
            {
                using (FileStream mFileStream = new FileStream(pfilename, FileMode.Open, FileAccess.Read))
                {
                    BinaryReader mBinaryReader = new BinaryReader(mFileStream);
                    BinaryFileReader reader = new BinaryFileReader(mBinaryReader);

                    if (mRegSyst == null)
                        mRegSyst = new Dictionary<string, bool>();

                    int Count = reader.ReadInt();
                    for(int i = 0; i < Count; i++)
                    {
                        string system = reader.ReadString();
                        Type type = ScriptCompiler.FindTypeByFullName(system);
                        bool enabled = reader.ReadBool();

                        if( type != null )
                        {
                            mRegSyst[system] = enabled;

                            if (mRegSyst[system])
                            {
                                KCSSystem mSyst = (KCSSystem)Activator.CreateInstance(type);
                                if (mSyst != null)
                                    mSyst.StartLoad(path);
                            }
                        }
                    }

                    reader.Close();
                    mFileStream.Close();
                }

                Console.WriteLine("Completed in {0:F1} seconds.", (DateTime.Now - start).TotalSeconds);
                Console.WriteLine(". . . . . . . . .");
                Console.WriteLine();
            }
            catch(Exception err )
            {
                Console.WriteLine("Loading Failed. Reason:" + err);
            }
        }
    }
}