using System;
using System.Collections.Generic;
using System.Text;
using gr2lib.core.helpers;

using gr2lib.core.interfaces;
using System.Diagnostics;
using gr2lib.core.exceptions;
using gr2lib.core.ui.helpers;
using System.ComponentModel;
using gr2lib.core.typedefs;
using gr2lib.core.ui.typeeditors;
using System.Drawing.Design;

namespace gr2lib.core.coretypes.implementation
{
    /// <summary>
    /// Represents a Granny_Texture
    /// </summary>
    [Editor(typeof(UITextureEditor), typeof(UITypeEditor))]
    public class Texture : ITexture
    {
        private GrannyRigResource _rigResource;

        private FilePath _FromFileName;
        private NameValuePair<string, granny_texture_type> _TextureType;
        private int _Width;
        private int _Height;
        private NameValuePair<string, granny_texture_encoding> _Encoding;
        private NameValuePair<string, granny_pixel_layout> _SubFormat;
        private Layout _Layout;
        private List<Image> _Images;
        //private bool _IsTexture;
        /// <summary>
        /// Gets the string representation of this instance
        /// </summary>
        /// <returns></returns>
        public override string ToString()
        {
            return this.FromFileName.Name;
        }

        //private string _ParentResourceName;
        /// <summary>
        /// Get's the parent resource name
        /// </summary>
        protected internal string ParentResourceName { get { return "Textures"; } }

        /// <summary>
        /// default constructor
        /// </summary>
        public Texture()// : base("Textures")
        {
            this.FromFileName = "";
            this.TextureType = new NameValuePair<string, granny_texture_type>(coreapi.EnumToStringSupport.GetGrannyEnumTypeString<granny_texture_type>(granny_texture_type.GrannyColorMapTextureType), granny_texture_type.GrannyColorMapTextureType);
            this.Width = 0;
            this.Height = 0;
            this.Encoding = new NameValuePair<string, granny_texture_encoding>(coreapi.EnumToStringSupport.GetGrannyEnumTypeString<granny_texture_encoding>(granny_texture_encoding.GrannyBinkTextureEncoding), granny_texture_encoding.GrannyBinkTextureEncoding);
            this.SubFormat = new NameValuePair<string, granny_pixel_layout>(coreapi.EnumToStringSupport.GetGrannyEnumTypeString<granny_pixel_layout>(granny_pixel_layout.GrannyBGRA8888PixelFormat), granny_pixel_layout.GrannyBGRA8888PixelFormat);
            this.Layout = new Layout();
            this.Images = new List<Image>();
            //this.IsTexture = true;
            //this.ExtendedData = new IntPtr();
            //this.NativePointer = IntPtr.Zero;
            this._rigResource = new GrannyRigResource();
        }
        /// <summary>
        /// default constructor (specifying index)
        /// </summary>
        /// <param name="index">the texture's index</param>
        public Texture(int index)
        {
            this.FromFileName = "";
            this.TextureType = new NameValuePair<string, granny_texture_type>(coreapi.EnumToStringSupport.GetGrannyEnumTypeString<granny_texture_type>(granny_texture_type.GrannyColorMapTextureType), granny_texture_type.GrannyColorMapTextureType);
            this.Width = 0;
            this.Height = 0;
            this.Encoding = new NameValuePair<string, granny_texture_encoding>(coreapi.EnumToStringSupport.GetGrannyEnumTypeString<granny_texture_encoding>(granny_texture_encoding.GrannyBinkTextureEncoding), granny_texture_encoding.GrannyBinkTextureEncoding);
            this.SubFormat = new NameValuePair<string, granny_pixel_layout>(coreapi.EnumToStringSupport.GetGrannyEnumTypeString<granny_pixel_layout>(granny_pixel_layout.GrannyBGRA8888PixelFormat), granny_pixel_layout.GrannyBGRA8888PixelFormat);
            this.Layout = new Layout();
            this.Images = new List<Image>();
            //this.IsTexture = true;
            //this.ExtendedData = new IntPtr();
            //this.NativePointer = IntPtr.Zero;
            this._rigResource = new GrannyRigResource();
            this.Index = index;
        }

        internal static native.Texture AssignToStructure(Texture texture)
        {
            native.Texture _texture_struct = new gr2lib.core.coretypes.native.Texture();

            //_texture_struct.Encoding = texture.Encoding;
            //_texture_struct.ExtendedData = texture.ExtendedData;
            //_texture_struct.FromFileName = texture.FromFileName.FullPath;
            //_texture_struct.Height = texture.Height;
            ////_texture_struct.Images = texture.Images;
            //_texture_struct.Layout = Layout.AssignToStructure(texture.Layout);
            //_texture_struct.SubFormat = texture.SubFormat;
            //_texture_struct.TextureType = texture.TextureType;
            //_texture_struct.Width = texture.Width;

            return _texture_struct;
        }

        internal static Texture ReadFromMemory(IntPtr pointer)
        {
            try 
            {
            if (pointer == IntPtr.Zero) return null;
            native.Texture native = Helpers.ReadFromMemory<native.Texture>(pointer);
            Texture managed = ReadFromNative(native);
            managed.NativePointer = pointer;
            return managed;
            }
            catch (Exception ex)
            {
                StackTrace st = new StackTrace(true);
                #if  ENABLE_EXCEPTION_OUTPUT_TO_CONSOLE
                Granny2ExceptionWriter.WriteToConsole(ex,st);
#endif
                return default(Texture);
            }
        }

        internal static Texture ReadFromNative(native.Texture native)
        {
            try
            {
                Texture managed = new Texture();
                managed.FromFileName = native.FromFileName;
                managed.TextureType = new NameValuePair<string, granny_texture_type>(coreapi.EnumToStringSupport.GetGrannyEnumTypeString<granny_texture_type>((granny_texture_type)native.TextureType), (granny_texture_type)native.TextureType);
                managed.Width = native.Width;
                managed.Height = native.Height;
                managed.Encoding = new NameValuePair<string, granny_texture_encoding>(coreapi.EnumToStringSupport.GetGrannyEnumTypeString<granny_texture_encoding>((granny_texture_encoding)native.Encoding), (granny_texture_encoding)native.Encoding);
                managed.SubFormat = new NameValuePair<string, granny_pixel_layout>(coreapi.EnumToStringSupport.GetGrannyEnumTypeString<granny_pixel_layout>((granny_pixel_layout)native.SubFormat), (granny_pixel_layout)native.SubFormat);
                managed.Layout = Layout.ReadFromNative(native.Layout);
                IntPtr[] images = Helpers.ReadPtrArrayFromMemory<native.Image>(native.Images);
                int length = images.Length;
                managed.Images = new List<Image>(length);
                foreach (IntPtr ptr in images)
                {
                    Image _tmp = new Image();
                    _tmp.NativePointer = ptr;
                    managed.Images.Add(_tmp);
                }
                for (int i = 0; i < length; i++)
                {
                    managed.Images[i] = Image.ReadFromMemory(images[i]);   
                }

                for (int i = 0; i < managed.Images.Count; i++)
                {
                    for (int j = 0; j < managed.Images[i].MIPLevels.Count; j++)
                    {
                        for (int k = 0; k < managed.Images[i].MIPLevels[j].Pixels.Count; k++)
                        {
                            managed.Images[i].MIPLevels[j].Pixels[k].ReferenceTexture = managed;
                        }
                    }
                }


                managed.ExtendedData = native.ExtendedData;
                return managed;
            }
            catch (Exception ex)
            {
                StackTrace st = new StackTrace(true);
#if  ENABLE_EXCEPTION_OUTPUT_TO_CONSOLE
                Granny2ExceptionWriter.WriteToConsole(ex,st);
#endif
                return default(Texture);
            }
        }

        #region ITexture Members
        /// <summary>
        /// Get's the texture's name
        /// </summary>
        [RefreshPropertiesAttribute(RefreshProperties.All)]
        public FilePath FromFileName { get { return _FromFileName; } set { _FromFileName = value; } }
        /// <summary>
        /// Get's the texture's type
        /// </summary>
        [RefreshPropertiesAttribute(RefreshProperties.All)]
        [Editor(typeof(UIComboValueSelector<granny_texture_type, int>), typeof(UITypeEditor))]
        public NameValuePair<string, granny_texture_type> TextureType { get { return _TextureType; } set { _TextureType = value; } }
        /// <summary>
        /// Get's the texture's widh
        /// </summary>
        [RefreshPropertiesAttribute(RefreshProperties.All)]
        public int Width { get { return _Width; } set { _Width = value; } }
        /// <summary>
        /// Get's the texture's height
        /// </summary>
        [RefreshPropertiesAttribute(RefreshProperties.All)]
        public int Height { get { return _Height; } set { _Height = value; } }
        /// <summary>
        /// Get's the texture's encoding
        /// </summary>
        [RefreshPropertiesAttribute(RefreshProperties.All)]
        [Editor(typeof(UIComboValueSelector<granny_texture_encoding, int>), typeof(UITypeEditor))]
        public NameValuePair<string, granny_texture_encoding> Encoding { get { return _Encoding; } set { _Encoding = value; } }
        /// <summary>
        /// Get's the texture's subformat
        /// </summary>
        [RefreshPropertiesAttribute(RefreshProperties.All)]
        [Editor(typeof(UIComboValueSelector<granny_pixel_layout, int>), typeof(UITypeEditor))]
        public NameValuePair<string, granny_pixel_layout> SubFormat { get { return _SubFormat; } set { _SubFormat = value; } }
        /// <summary>
        /// Get's the texture's Pixel Layout
        /// </summary>
        [RefreshPropertiesAttribute(RefreshProperties.All)]
        [Browsable(true)]
        public Layout Layout { get { return _Layout; } set { _Layout = value; } }
        /// <summary>
        /// Get a List of Images associated with this texture
        /// </summary>
        [RefreshPropertiesAttribute(RefreshProperties.All)]
        public List<Image> Images { get { return _Images; } set { _Images = value; } }


        ///// <summary>
        ///// Indicates if this instance is a texture or not
        ///// </summary>
        //public bool IsTexture { get { return _IsTexture; } set { _IsTexture = value; } }
        #endregion

        #region INativePointer Members
        private IntPtr _NativePointer;
        /// <summary>
        /// When used in a derived class, gets the native pointer for this instance
        /// </summary>
        public IntPtr NativePointer { get { return _NativePointer; } set { _NativePointer = value; } }
        #endregion

        #region IExtendedData Members
        private IntPtr _ExtendedData;
        /// <summary>
        /// When used in a derived class, gets the ExtendedData pointer for this instance
        /// </summary>
        public IntPtr ExtendedData { get { return _ExtendedData; } set { _ExtendedData = value; } }
        #endregion

        #region IResource Members
        private int _index;
        [RefreshPropertiesAttribute(RefreshProperties.All)]
        internal int Index { get { return _index; } set { _index = value; } }
        #endregion
        #region IEmbeddedResource Members
        [RefreshPropertiesAttribute(RefreshProperties.All)]
        internal string IndexName { get { return new GrannyRigResource("Texture", this.Index, this.Name).ResourceBlockIndexFormat; } }
        [RefreshPropertiesAttribute(RefreshProperties.All)]
        internal string FullName { get { return new GrannyRigResource("Texture", this.Index, this.Name).ResourceBlockFormat; } }
        [RefreshPropertiesAttribute(RefreshProperties.All)]
        internal string Name { get { return this.FromFileName; } set { this.FromFileName = value; } }
        #endregion
    }
}