using System;
using System.Collections.Generic;
using System.Windows.Forms;
using Toolbox.Library;
using Toolbox.Library.Forms;
using Toolbox.Library.IO;

namespace FirstPlugin
{
    class BTI : STGenericTexture, IFileFormat, ISingleTextureIconLoader
    {
        public STGenericTexture IconTexture { get { return this; } }

        public FileType FileType { get; set; } = FileType.Image;

        public bool CanSave { get; set; }

        public string[] Description { get; set; } = new string[] { "Binary Texture Image" };
        public string[] Extension { get; set; } = new string[] { "*.bti" };
        public string FileName { get; set; }
        public string FilePath { get; set; }

        //Stores compression info from being opened (done automaitcally)
        public IFileInfo IFileInfo { get; set; }

        //Check how the file wil be opened
        public bool Identify(System.IO.Stream stream)
        {
            return Utils.HasExtension(FileName, ".bti");
        }

        //A Type list for custom types
        //With this you can add in classes with IFileMenuExtension to add menus for this format
        public Type[] Types
        {
            get
            {
                List<Type> types = new List<Type>();
                return types.ToArray();
            }
        }

        private int RoundWidth(int width, int BlockWidth)
        {
            return width + ((BlockWidth - (width % BlockWidth)) % BlockWidth);
        }
        private int RoundHeight(int height, int BlockHeight)
        {
            return height + ((BlockHeight - (height % BlockHeight)) % BlockHeight);
        }

        private void Read(System.IO.Stream stream)
        {
            
        }

        public void Load(System.IO.Stream stream)
        {
            //Set this if you want to save the file format
            CanSave = true;
            CanEdit = false;

            ImageKey = "Texture";
            SelectedImageKey = "Texture";
            Text = FileName;

            //You can add a FileReader with Toolbox.Library.IO namespace
            using (var reader = new FileReader(stream))
            {
                CanEdit = false;

                reader.SetByteOrder(true);

                //Turn this format into a common format used by this tool
                byte texFormat = reader.ReadByte();
                Format = Decode_Gamecube.ToGenericFormat((Decode_Gamecube.TextureFormats)texFormat);

                reader.ReadByte(); // enable alpha
                Width = reader.ReadUInt16();
                Height = reader.ReadUInt16();
                reader.ReadByte(); // wrap s
                reader.ReadByte(); // wrap t
                reader.ReadByte(); // unknown
                var paletteFormat = (Decode_Gamecube.PaletteFormats)reader.ReadByte();
                var paletteEntryCount = reader.ReadInt16(); // num of palette entries
                uint paletteOffset = reader.ReadUInt32(); // offset to palette data
                reader.ReadInt32(); // border colour
                reader.ReadByte(); // min filter type
                reader.ReadByte(); // mag filter type
                reader.ReadInt16();

                MipCount = reader.ReadByte();
                reader.ReadByte();
                short LODBias = reader.ReadInt16();
                uint offsetToImageData = reader.ReadUInt32(); // offset to image data

                //Lets set our method of decoding
                PlatformSwizzle = PlatformSwizzle.Platform_Gamecube;

                reader.SeekBegin(offsetToImageData);
                int imageDataSize = Decode_Gamecube.GetDataSize(texFormat, Width,Height);

                ImageData = reader.ReadBytes(imageDataSize);

                reader.SeekBegin(paletteOffset);
                byte[] PaletteData = reader.ReadBytes((int)paletteEntryCount * 2);
                SetPaletteData(PaletteData, Decode_Gamecube.ToGenericPaletteFormat(paletteFormat));
            }
        }

        public void Save(System.IO.Stream stream)
        {
        }

        public void Unload()
        {

        }

        public byte[] ImageData { get; set; }

        //A list of supported formats
        //This gets used in the re encode option
        public override TEX_FORMAT[] SupportedFormats
        {
            get
            {
                return new TEX_FORMAT[]
                {
                    TEX_FORMAT.I4,
                    TEX_FORMAT.I8,
                    TEX_FORMAT.I4,
                    TEX_FORMAT.I8,
                    TEX_FORMAT.RGB565,
                    TEX_FORMAT.RGB5A3,
                    TEX_FORMAT.RGBA32,
                    TEX_FORMAT.C4,
                    TEX_FORMAT.C8,
                    TEX_FORMAT.C14X2,
                    TEX_FORMAT.CMPR,
                };
            }
        }

        public override bool CanEdit { get; set; } = false;

        //This gets used in the image editor if the image gets edited
        //This wll not be ran if "CanEdit" is set to false!
        public override void SetImageData(System.Drawing.Bitmap bitmap, int ArrayLevel)
        {

        }

        //Gets the raw image data in bytes
        //Gets decoded automatically
        public override byte[] GetImageData(int ArrayLevel = 0, int MipLevel = 0)
        {
            return Decode_Gamecube.GetMipLevel(ImageData, Width, Height, MipCount, (uint)MipLevel, Format);
        }


        //This is an event for when the tree is clicked on
        //Load our editor
        public override void OnClick(TreeView treeView)
        {
            //Here we check for an active editor and load a new one if not found
            //This is used when a tree/object editor is used
            ImageEditorBase editor = (ImageEditorBase)LibraryGUI.GetActiveContent(typeof(ImageEditorBase));
            if (editor == null)
            {
                editor = new ImageEditorBase();
                editor.Dock = DockStyle.Fill;
                LibraryGUI.LoadEditor(editor);
            }

            //Load our image and any properties
            //If you don't make a class for properties you can use a generic class provided in STGenericTexture
            editor.LoadProperties(GenericProperties);
            editor.LoadImage(this);
        }
    }
}