using System;
using System.IO;
using System.Drawing;
using System.Windows.Forms;
using ClassLibrary;

namespace Treko3D
{
    public class Treko3D : Technology
    {
        private Bitmap[] _rakurseBmps;
        //private string _outDirName;
        // We have tvo displays for test:
        int _imgDisplayTreko3DWidthPix = 2000;
        int _imgDisplayTreko3DHeightPix = 2000;
        int _imgDisplayVoxelWidthPix = 2500;
        int _imgDisplayVoxelHeightPix = 2500;
        Image _imgDisplayTreko3D;
        Image _imgDisplayVoxel;
        int _imageWidthPix;
        int _imageHeightPix;
        int _voxelWidthPix;
        int _voxelHeightPix;
        double _radiusMax;
        double _step;
        int _arcWidth = 20; // Width of arcs (in numbers of arcs or pixels)
        Strip[] _strips;
        string[] _rakurseFiles;
        int _nRakurses;

        public int ImgDisplayTreko3DWidthPix
        {
            get { return _imgDisplayTreko3DWidthPix; }
            set { _imgDisplayTreko3DWidthPix = value; }
        }

        public int ImgDisplayTreko3DHeightPix
        {
            get { return _imgDisplayTreko3DHeightPix; }
            set { _imgDisplayTreko3DHeightPix = value; }
        }

        public int ImgDisplayVoxelWidthPix
        {
            get { return _imgDisplayVoxelWidthPix; }
            set { _imgDisplayVoxelWidthPix = value; }
        }

        public int JmgDisplayVoxelHeightPix
        {
            get { return _imgDisplayVoxelHeightPix; }
            set { _imgDisplayVoxelHeightPix = value; }
        }

        public Image ImgDisplayTreko3D
        {
            get { return _imgDisplayTreko3D; }
            set { _imgDisplayTreko3D = value; }
        }

        public Image ImgDisplayVoxel
        {
            get { return _imgDisplayVoxel; }
            set { _imgDisplayVoxel = value; }
        }

        public int ImageWidthPix
        {
            get { return _imageWidthPix; }
            set { _imageWidthPix = value; }
        }

        public int ImageHeightPix
        {
            get { return _imageHeightPix; }
            set { _imageHeightPix = value; }
        }

        public Bitmap[] RakurseBmps
        {
            get { return _rakurseBmps; }
            set { _rakurseBmps = value; }
        }

        public int VoxelWidthPix
        {
            get { return _voxelWidthPix; }
            set { _voxelWidthPix = value; }
        }

        public int VoxelHeightPix
        {
            get { return _voxelHeightPix; }
            set { _voxelHeightPix = value; }
        }

        public double RadiusMax
        {
            get { return _radiusMax; }
            set { _radiusMax = value; }
        }

        public double Step
        {
            get { return _step; }
            set { _step = value; }
        }

        public int ArcWidth
        {
            get { return _arcWidth; }
            set { _arcWidth = value; }
        }

        public Strip[] Strips
        {
            get { return _strips; }
            set { _strips = value; }
        }

        public string[] RakurseFiles
        {
            get { return _rakurseFiles; }
            set { _rakurseFiles = value; }
        }

        public int NRakurses
        {
            get { return _nRakurses; }
            set { _nRakurses = value; }
        }


        public void CreateImageTreko3D()
        {
            if (_imgDisplayTreko3D == null)
            {
                _imgDisplayTreko3D = new Bitmap(_imgDisplayTreko3DWidthPix, _imgDisplayTreko3DHeightPix);
            }
        }

        public void CreateImageVoxel()
        {
            if (_imgDisplayVoxel == null)
            {
                _imgDisplayVoxel = new Bitmap(_imgDisplayVoxelWidthPix, _imgDisplayVoxelHeightPix);
            }
        }

        public Strip GenerateAndSaveStrip(int nStrip, string fullName, string outDirName, int decimate)
        {
            Strip strip = new Strip(nStrip, this); // rakurseFiles);
            strip.GenerateAndSaveStrip(nStrip, outDirName, decimate);
            return strip;
        }

        public void GenerateAndSaveStrips(string path, string outDirName)
        {
            FileInfo stripFile;

            LoadRakurseFiles();

            Bitmap RakurseBmp = RakurseBmps[0];

            ImageHeightPix = RakurseBmp.Height;
            ImageWidthPix = RakurseBmp.Width;

            int decimate = ImageWidthPix / 200;
            if (decimate <= 0) decimate = 1;         //!!!!Nick

            _strips = new Strip[ImageHeightPix];
            for (int nRow = 0; nRow < ImageHeightPix; nRow += decimate)
            {
                stripFile = getFileName(nRow, path);
                _strips[nRow] = GenerateAndSaveStrip(nRow, stripFile.FullName, outDirName, decimate);
            }
        }

        public Strip GenerateStrip(int nStrip, int nVoxelStart, int nVoxelEnd)
        {
            Strip strip = new Strip(nStrip, this); // rakurseFiles);
            strip.GenerateStrip(nStrip, nVoxelStart, nVoxelEnd);
            return strip;
        }

        // Load rakurse files and initialize bitmap array
        public void LoadRakurseFiles()
        {
            if (RakurseBmps != null)
                foreach (Bitmap rakurseBmp in RakurseBmps)
                    rakurseBmp.Dispose();

            RakurseBmps = new Bitmap[_nRakurses];

            for (int i = 0; i < NRakurses; i++)
            {
                try
                {
                    RakurseBmps[i] = (Bitmap)Image.FromFile(RakurseFiles[i]);
                }
                catch (Exception exception)
                {
                    MessageBox.Show(exception.Message, exception.GetType().FullName);
                }
            }
        }


        private FileInfo getFileName(int nRow, string path)
        {
            string dir = Path.GetDirectoryName(path);
            string fileName = Path.GetFileNameWithoutExtension(path);
            string _prefix = GetUntilOrEmpty(fileName, "_");
            _prefix = "nika";
            string fileExt = ".png"; // Path.GetExtension(path);

            path = Path.Combine(dir, _prefix + "_" + nRow + fileExt);
            return new FileInfo(path);
        }

        public string GetUntilOrEmpty(string text, string stopAt = "_")
        {
            if (!String.IsNullOrWhiteSpace(text))
            {
                int charLocation = text.IndexOf(stopAt, StringComparison.Ordinal);

                if (charLocation > 0)
                {
                    return text.Substring(0, charLocation);
                }
            }

            return String.Empty;
        }

        public void DrawOnImage(Image imgTreko3D, int _mmToPixelsCoeff)
        {
            //imgTreko3D.Refresh();

            foreach (Strip strip in _strips)
            {
                if (strip != null)
                {
                    //strip.MmToPixelsCoeff = MmToPixelsCoeff;
                    strip.DrawOnPictureBox(imgTreko3D, _mmToPixelsCoeff);
                }
            }
        }

        public void DrawAnimation(Image imgTreko3D, int angPreview, int parallaxAng, int mmToPixelsCoeffPreview)
        {
            foreach (Strip strip in _strips)
            {
                if (strip != null)
                {
                    strip.DrawAnimation(imgTreko3D, angPreview, parallaxAng, mmToPixelsCoeffPreview);
                }
            }
        }

        //public void GenerateFrames()
        //{
        //    generateFrameGroups();
        //}

        //public void SaveFramesToFiles()
        //{
        //    int i = 0;
        //    foreach (FrameGroup fg in _frameGroups)
        //    {
        //        if (fg.IntersectArcs != null && fg.IntersectArcs.Count > 0)
        //        {
        //            fg.DrawBitmapByArcs();
        //            fg.SaveGroupToFiles(_outDirName, i);
        //            fg.FrameGroupBmp.Dispose();
        //        }
        //        i++;
        //    }

        //}


    }
}