using LibW4M;
using LibW4M.PS2;
using LibW4M.XBOX;
using LibXom;
using System;
using System.CodeDom;
using System.Collections.Generic;
using System.IO.Compression;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using W4Gui.Tabs;

namespace W4Gui
{
    public static class DataManager
    {
        public static SaveType LoadedSaveType;
        public static string LoadedSavePath;

        public static bool SaveLoaded = false;
        public static W4SaveFile SaveFile;
        public static void CommitData()
        {
            foreach(TabEntry control in SaveComponents)
            {
                try
                {
                    control.SaveFromControl();
                }
                catch { };
            }
        }

        public static void ParseData()
        {
            foreach (TabEntry control in SaveComponents)
            {
                try
                {
                    control.LoadIntoControl();
                }
                catch { };
            }
        }


        public static void SavePS2(Stream ps2PsuSaveStream)
        {
            using (ps2PsuSaveStream)
            {
                Ps2Save.CreateSaveFile(DataManager.SaveFile, ps2PsuSaveStream);
            }
        }

        public static void SaveXBOX(Stream xboxSaveStream, XboxRegion region)
        {
            using (xboxSaveStream)
            {
                XboxSave.CreateSaveZipFile(DataManager.SaveFile, xboxSaveStream, region);
            }
        }

        public static void SavePC(string newXom)
        {
            SaveFile.Save(File.OpenWrite(newXom));
        }

        public static void SaveXBOX(string newXom, XboxRegion region)
        {
            SaveXBOX(File.OpenWrite(newXom), region);
        }
        public static void SavePS2(string newXom)
        {
            SavePS2(File.OpenWrite(newXom));
        }


        public static void LoadPC(string filename)
        {
            SaveFile = new W4SaveFile(XomReader.ReadXomFile(filename));
        }

        public static void LoadPS2(string filename)
        {
            SaveFile = Ps2Save.ReadPS2Save(filename);
        }
        public static SaveType LoadXBOX(string filename)
        {
            XboxRegion region = XboxRegion.UNKNOWN;
            SaveFile = XboxSave.ReadXboxSave(filename, ref region);
            if (region == XboxRegion.USA) return SaveType.XBOX_US;
            if (region == XboxRegion.EU) return SaveType.XBOX_EU;
            return SaveType.UNKNOWN;
        }

        public static SaveType LoadGuessType(string filename)
        {
            switch (Path.GetExtension(filename))
            {
                case ".xom":
                    LoadPC(filename);
                    return SaveType.PC;
                case ".psu":
                    LoadPS2(filename);
                    return SaveType.PS2;
                case ".zip":
                    return LoadXBOX(filename);
            }


            return SaveType.UNKNOWN;
        }

        public static void Load(string filename, SaveType saveType)
        {

            switch (saveType)
            {
                case SaveType.PC:
                    LoadPC(filename);
                    break;
                case SaveType.PS2:
                    LoadPS2(filename);
                    break;
                case SaveType.XBOX_US:
                case SaveType.XBOX_EU:
                    saveType = LoadXBOX(filename);
                    break;
                case SaveType.UNKNOWN:
                default:
                    saveType = LoadGuessType(filename);
                    break;
            }

            if(saveType != SaveType.UNKNOWN)
            {
                DataManager.LoadedSavePath = filename;
                DataManager.LoadedSaveType = saveType;
            }
            else {
                throw new Exception("unable to determine save type.");
            }

        }

        public static void Save(string filename, SaveType saveType)
        {
            switch (saveType)
            {
                case SaveType.PC:
                    DataManager.SavePC(filename);
                    break;
                case SaveType.PS2:
                    DataManager.SavePS2(filename);
                    break;
                case SaveType.XBOX_US:
                    DataManager.SaveXBOX(filename, XboxRegion.USA);
                    break;
                case SaveType.XBOX_EU:
                    DataManager.SaveXBOX(filename, XboxRegion.EU);
                    break;
            }

            DataManager.LoadedSavePath = filename;
            DataManager.LoadedSaveType = saveType;
        }

        public static List<TabEntry> SaveComponents = new List<TabEntry>();
    }
}