using OpenCvSharp;
using PaintDotNet.Base.DedicatedAnalysis.Inclusions.Model;
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using static PaintDotNet.Base.DedicatedAnalysis.Inclusions.InclusionsGlobalSettings;

namespace PaintDotNet.Base.DedicatedAnalysis.Inclusions
{
    /// <summary>
    /// 评定方法
    /// </summary>
    public abstract class MethodOfAssessment
    {
        public static MethodOfAssessment activeMethod;

        /// <summary>
        /// 所属的标准
        /// </summary>
        public InclusionsStandard inclusionsStandard;

        /// <summary>
        /// 测量区域
        /// </summary>
        public Mat field;

        public string resourcesName;

        public int is_full;

        // 标准的结果模型


        // 试样总检验面积
        // 视场面积
        // 放大倍数

        /// <summary>
        /// 产生报告
        /// </summary>
        public AnalysisResult generateReport(Mat originalImage, Mat binary, List<RectangleF> rectangles,int is_k, int viewNum, int kNum,int is_full, RollingDirection rollingDirection)
        {
            Mat binaryBGR2GRAY = binary.CvtColor(ColorConversionCodes.BGR2GRAY);

            Cv2.Threshold(binaryBGR2GRAY, binaryBGR2GRAY, 249, 255, ThresholdTypes.Binary);

            List<Particle> particles = new List<Particle>();

            List<RectangleF> MedthodKRectangles = new List<RectangleF>();

            this.inclusionsStandard.globalSettings.rollingDirection = rollingDirection;

            int offX = 0;
            int offY = 0;
            int segmentationView = 1;

            if (is_k != 1)
            {
                particles = this.inclusionsStandard.identifyParticles(binaryBGR2GRAY, is_k);
            }
            else {

                if (rectangles.Count == 0) {
                    rectangles.Add(new RectangleF(0,0, originalImage.Width, originalImage.Height));
                }

                var grap = rectangles[0];

                if (grap.Width > originalImage.Width) {

                    grap.Width = originalImage.Width;
                }

                if (grap.Height > originalImage.Height) {
                    grap.Height = originalImage.Height;
                }

                var biaochi = this.inclusionsStandard.globalSettings.pxPerUnit;
                int hnum = (int)Math.Truncate(grap.Width * biaochi / viewNum);    //水平网格数
                int vnum = (int)Math.Truncate(grap.Height * biaochi / viewNum);      //垂直网格数

                if (hnum == 0)
                      {
                    particles = this.inclusionsStandard.identifyParticles(binaryBGR2GRAY,is_k);
                    MedthodKRectangles.Add(grap);
                }
                else 
                {
                    int OffsetX = (int)((grap.Width - (viewNum / biaochi) * hnum) / 2);
                    int OffsetY = (int)((grap.Height - (viewNum / biaochi) * vnum) / 2);

                    int startX = ((int)grap.X + OffsetX) < 0 ? OffsetX : ((int)grap.X + OffsetX);
                    int startY = ((int)grap.Y + OffsetY) < 0 ? OffsetY : ((int)grap.Y + OffsetY);

                    for (int i = 0; i < hnum; i++)
                    {
                        for (int j = 0; j < vnum; j++)
                        {
                            Mat mat = new Mat(binaryBGR2GRAY, new Rect((int)(startX + ((viewNum / biaochi)) * i), (int)(startY + ((viewNum / biaochi)) * j), (int)((viewNum / biaochi)), (int)((viewNum / biaochi))));
                            var newParticles = this.inclusionsStandard.identifyParticles(mat, is_k);

                            foreach (var s in newParticles) 
                            {
                                s.rectKMethodProfile.X += (int)(startX + ((viewNum / biaochi)) * i);
                                s.rectKMethodProfile.Y += (int)(startY + ((viewNum / biaochi)) * j);

                                var points = new List<System.Drawing.Point>();

                                foreach (var k in s.points2)
                                {
                                    var point = new System.Drawing.Point((int)(k.X + (startX + ((viewNum / biaochi)) * i)), (int)(k.Y + (startY + ((viewNum / biaochi)) * j)));
                                    points.Add(point);
                                }
                                s.points2 = points.ToArray();

                                s.offsetX = (int)(i * (viewNum / biaochi));
                                s.offsetY = (int)(j * (viewNum / biaochi));
                            }
                            particles.AddRange(newParticles);
                            MedthodKRectangles.Add(new Rectangle((int)(startX + (viewNum / biaochi) * i), (int)(startY + (viewNum / biaochi) * j), (int)(viewNum / biaochi), (int)(viewNum / biaochi)));
                        }
                    }
                    segmentationView = 2;
                    offX = startX;
                    offY = startY;
                }
            }

            particles = this.inclusionsStandard.filterParticles(particles);
            
            List<Inclusion> inclusions = this.inclusionsStandard.divideInclusion(particles);

            // 三通道 验证颜色
            if (originalImage.Channels() >= 3)
            {
                Dictionary<ColorOfInclusions, int> colorCount = new Dictionary<ColorOfInclusions, int>();

                foreach (var inclusion in inclusions)
                {
                    // 清理记录列表
                    colorCount.Clear();
                    foreach (var item in this.inclusionsStandard.globalSettings.colorOfInclusions)
                    {
                        colorCount.Add(item.Value, 0);
                    }
                    // 循环微粒
                    // 遍历所有点颜色，判断夹杂物颜色
                    foreach (var particle in inclusion.particles)
                    {
                        var groups = particle.points2.GroupBy(r => r.Y);

                        foreach (var group in groups)
                        {
                            // 确定一行的两个端点
                            int y = group.Key;
                            int? minx = null,maxx = null;

                            foreach (var item in group)
                            {
                                if (minx == null)
                                {
                                    minx = item.X;
                                }
                                if (maxx == null)
                                {
                                    maxx = item.X;
                                }
                                if (item.X < minx)
                                {
                                    minx = item.X;
                                }
                                if (item.X > maxx)
                                {
                                    maxx = item.X;
                                }
                            }
                            for (int x = minx.Value; x <= maxx.Value; x++)
                            {
                                Vec3b color = originalImage.At<Vec3b>(y, x);

                                List<ColorOfInclusions> keys = new List<ColorOfInclusions>();
                                keys.AddRange(colorCount.Keys);
                                // 判断是否符合颜色区间
                                foreach (var colorOfInclusion in keys)
                                {
                                    //r
                                    if (!(colorOfInclusion.rd <= color[2] && colorOfInclusion.ru >= color[2]))
                                    {
                                        continue;
                                    }
                                    //g
                                    if (!(colorOfInclusion.gd <= color[1] && colorOfInclusion.gu >= color[1]))
                                    {
                                        continue;
                                    }
                                    //b
                                    if (!(colorOfInclusion.bd <= color[0] && colorOfInclusion.bu >= color[0]))
                                    {
                                        continue;
                                    }
                                    colorCount[colorOfInclusion]++;
                                }
                            }
                        }
                    }

                    inclusion.color = colorCount.First(r => r.Value == colorCount.Max(t => t.Value)).Key;
                }
            }

            this.is_full = is_full;
            AnalysisResult analysisResult = GetAnalysisResult();
            analysisResult.inclusionsStandard = this.inclusionsStandard;
            analysisResult.mat = originalImage;
            analysisResult.kNum = kNum;
            analysisResult.segmentationView = segmentationView;
            analysisResult.inclusions = inclusions;
            analysisResult.rectangles = rectangles;
            analysisResult.offsetX = offX;
            analysisResult.offsetY = offY;
            analysisResult.viewNum = viewNum;
            analysisResult.MedthodKRectangles = MedthodKRectangles;
            analysisResult.buildResultBody();

            binary.Dispose();

            return analysisResult;
        }

        public abstract AnalysisResult GetAnalysisResult();

        public abstract List<string> getResultConclusionHead();

        public abstract List<string> buildResultConclusion(List<AnalysisResult> analysisResults);

        /// <summary>
        /// 分析结果
        /// </summary>
        public abstract class AnalysisResult
        {
            /// <summary>
            /// 所属标准
            /// </summary>
            public InclusionsStandard inclusionsStandard;
            /// <summary>
            /// 所属图片
            /// </summary>
            public Mat mat;
            /// <summary>
            /// 夹杂物列表
            /// </summary>
            public List<Inclusion> inclusions;

            public List<RectangleF> rectangles;

            public List<RectangleF> MedthodKRectangles = new List<RectangleF>();

            public int segmentationView = 1;

            public int kNum;

            public int offsetX = 0;
            public int offsetY = 0;

            public int viewNum;
            public List<string> publicResultHead = new List<string> {"图片","视场"};
            public Dictionary<FieldOfView, List<string>> resultBody = new Dictionary<FieldOfView, List<string>>();

            /// <summary>
            /// 是否是K法
            /// </summary>
            public int is_k;

            /// <summary>
            /// 视场模型
            /// </summary>
            public class FieldOfView
            {
                public string name;
                public RectangleF rectangle;
                public List<Inclusion> inclusions;

                /// <summary>
                /// 过滤有效的夹杂物
                /// </summary>
                /// <returns></returns>
                public List<Inclusion> effectiveFilteringInclusion(List<Inclusion> inclusions)
                {
                    List<Inclusion> inclusions1 = new List<Inclusion>();
                    foreach (var item in inclusions)
                    {
                        if (this.rectangle.Contains(item.rectProfile) || this.rectangle.IntersectsWith(item.rectProfile))
                        {
                            inclusions1.Add(item);
                        }
                    }
                    return inclusions1;
                }

                /// <summary>
                /// 过滤有效的夹杂物(50602K)
                /// </summary>
                /// <returns></returns>
                public List<Inclusion> effectiveFilteringMethodKInclusion(RectangleF rectangleF, List<Inclusion> inclusions)
                {
                    List<Inclusion> inclusions1 = new List<Inclusion>();
                    foreach (var item in inclusions)
                    {
                        if (rectangleF.Contains(item.rectKMethodProfile) || rectangleF.IntersectsWith(item.rectKMethodProfile))
                        {
                            inclusions1.Add(item);
                        }
                    }
                    return inclusions1;
                }
            }

            public List<string> getResultHead()
            {
                List<string> resultHead = new List<string>();
                resultHead.AddRange(publicResultHead);
                resultHead.AddRange(getDedicatedResultHead());
                return resultHead;
            }

            public abstract List<string> getDedicatedResultHead();

            public abstract void buildResultBody();

            /// <summary>
            /// 夹杂物评级
            /// </summary>
            /// 评级图暂已硬编码形式实现
            public abstract double ratingInclusion(string type, double value);
        }
    }
}