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

namespace PaintDotNet.Base.DedicatedAnalysis.Inclusions.Model
{
    /// <summary>
    /// 夹杂物(inclusion)
    /// 
    /// </summary>
    public class Inclusion
    {
        /// <summary>
        /// 构成夹杂物的微粒集合
        /// </summary>
        public List<Particle> particles;

        /// <summary>
        /// 当前夹杂物判定所使用的标准
        /// </summary>
        public InclusionsStandard standard;

        /// <summary>
        /// 像素长度
        /// </summary>
        public double pixelLength;
        /// <summary>
        /// 像素宽度
        /// </summary>
        public double pixelWidth;
        /// <summary>
        /// 物理长度
        /// </summary>
        public double physicalLength;
        /// <summary>
        /// 物理宽度
        /// </summary>
        public double physicalWidth;

        /// <summary>
        /// 长宽比
        /// </summary>
        public double lwRatio;

        /// <summary>
        /// 评级-用于平均视场
        /// </summary>
        public double rating;

        /// <summary>
        /// 视场编号
        /// </summary>
        public int viewNum;

        /// <summary>
        /// 视场左限
        /// </summary>
        public int viewLeft;

        /// <summary>
        /// 视场上限
        /// </summary>
        public int viewTop;

        /// <summary>
        /// 视场右限
        /// </summary>
        public int viewRight;

        /// <summary>
        /// 视场下限
        /// </summary>
        public int viewBottom;

        /// <summary>
        /// 矩形轮廓
        /// </summary>
        public Rectangle rectProfile;

        /// <summary>
        /// 矩形轮廓（K法）
        /// </summary>
        public Rectangle rectKMethodProfile;

        public int offsetX;

        public int offsetY;

        // 排列方式
        public InclusionArrangement arrangement
        {
            get
            {
                return particles.Count > 1 ? InclusionArrangement.Aligned : InclusionArrangement.Scattered;
            }
        }

        /// <summary>
        /// 形状
        /// </summary>
        private ParticleShape shape_;
        public ParticleShape shape
        {
            get
            {
                return shape_;
            }
            set
            {
                shape_ = value;
                switch (value)
                {
                    case ParticleShape.Elongated:
                        {
                            switch (this.arrangement)
                            {
                                case InclusionArrangement.Aligned:
                                    {
                                        this.classes = ClassesOfInclusions.γ;
                                    }
                                    break;
                                case InclusionArrangement.Scattered:
                                    {
                                        this.classes = ClassesOfInclusions.α;
                                    }
                                    break;
                                default: break;
                            }
                        }
                        break;
                    case ParticleShape.Globular:
                        {
                            switch (this.arrangement)
                            {
                                case InclusionArrangement.Aligned:
                                    {
                                        this.classes = ClassesOfInclusions.β;
                                    }
                                    break;
                                case InclusionArrangement.Scattered:
                                    {
                                        this.classes = ClassesOfInclusions.δ;
                                    }
                                    break;
                                default: break;
                            }
                        }
                        break;
                    default:
                        break;
                }
            }
        }

        /// <summary>
        /// 形状系数(shape factor)
        /// </summary>
        public double shapeFactor;

        /// <summary>
        /// 面积(area)
        /// </summary>
        public double area;

        /// <summary>
        /// 面积(area)
        /// </summary>
        public double areaK;

        /// <summary>
        /// 直径(diameter)
        /// </summary>
        public double diameter;

        /// <summary>
        /// 评级行号
        /// </summary>
        public int rowNumber;

        /// <summary>
        /// 评级列号
        /// </summary>
        public int columnNumber;

        /// <summary>
        /// 
        /// </summary>
        public int isEdit = 0;

        /// <summary>
        /// 夹杂物分类
        /// </summary>
        public ClassesOfInclusions classes;

        /// <summary>
        /// 夹杂物类型
        /// </summary>
        public TypesOfInclusions type;

        /// <summary>
        /// 夹杂物颜色
        /// </summary>
        private ColorOfInclusions color_;
        public ColorOfInclusions color {
            get
            {
                return color_;
            }
            set
            {
                color_ = value;
                this.standard.determineType(this);
            }
        }

        /// <summary>
        /// 化学特性
        /// </summary>
        public String chemicalCharacteristics = "";

        public bool superBig = false;


        /// <summary>
        /// 构造函数
        /// </summary>
        /// <param name="standard"></param>
        public Inclusion(InclusionsStandard standard)
        {
            this.particles = new List<Particle>();
            this.standard = standard;
        }
        public Inclusion(InclusionsStandard standard, PointF[] points)
        {
            this.particles = new List<Particle>();
            this.standard = standard;

            OpenCvSharp.Point[] cvPoints = new OpenCvSharp.Point[points.Length];
            for (int i = 0; i < points.Length; i++)
            {
                OpenCvSharp.Point point = new OpenCvSharp.Point(points[i].X, points[i].Y);
                cvPoints[i] = point;
            }
            Particle particle = new Particle(cvPoints, standard);
            this.addParticles(particle);
            this.isEdit = 1;
        }

        public void addParticles(Particle particle)
        {
            this.particles.Add(particle);
            parametersCalculation();
        }

        public void addParticles(List<Particle> particles)
        {
            this.particles.AddRange(particles);
            parametersCalculation();
        }

        public void removeParticles(Particle particle)
        {
            this.particles.Remove(particle);
            parametersCalculation();
        }

        /// <summary>
        /// 参数计算
        /// </summary>
        private void parametersCalculation()
        {
            if (this.particles.Count == 0)
            {
                return;
            }
            int minx = 0, miny = 0, maxx = 0, maxy = 0;
            int minxK = 0, minyK = 0, maxxK = 0, maxyK = 0;

            int countGlobular=0;

            for (int i = 0; i < this.particles.Count; i++)
            {
                Particle particle = this.particles[i];

                if (i == 0) {
                    this.offsetX = particle.offsetX;
                    this.offsetY = particle.offsetY;
                }

                if (particle.shape == ParticleShape.Globular)
                {
                    countGlobular++;
                }

                if (i == 0)
                {
                    minx = particle.rectProfile.Left;
                    maxx = particle.rectProfile.Right;
                    miny = particle.rectProfile.Top;
                    maxy = particle.rectProfile.Bottom;

                    minxK = particle.rectKMethodProfile.Left;
                    maxxK = particle.rectKMethodProfile.Right;
                    minyK = particle.rectKMethodProfile.Top;
                    maxyK = particle.rectKMethodProfile.Bottom;

                    continue;
                }
                if (particle.rectProfile.Left < minx)
                {
                    minx = particle.rectProfile.Left;
                    minxK = particle.rectKMethodProfile.Left;
                }
                if (particle.rectProfile.Right > maxx)
                {
                    maxx = particle.rectProfile.Right;
                    maxxK = particle.rectKMethodProfile.Left;
                }
                if (particle.rectProfile.Top < miny)
                {
                    miny = particle.rectProfile.Top;
                    minyK = particle.rectKMethodProfile.Left;
                }
                if (particle.rectProfile.Bottom > maxy)
                {
                    maxy = particle.rectProfile.Bottom;
                    maxyK = particle.rectKMethodProfile.Left;
                }
            }
            // 计算长度，宽度/直径，面积，形状系数，长宽比
            if (this.standard.globalSettings.rollingDirection == RollingDirection.PORTRAIT)
            {
                this.pixelLength = maxy - miny;
                this.pixelWidth = maxx - minx;
            }
            else
            {
                this.pixelWidth = maxy - miny;
                this.pixelLength = maxx - minx;
            }

            this.physicalLength = this.pixelLength * this.standard.globalSettings.pxPerUnit;
            this.physicalWidth = this.pixelWidth * this.standard.globalSettings.pxPerUnit;

            this.diameter = this.physicalLength > this.physicalWidth? this.physicalLength : this.physicalWidth;
            
            if (countGlobular/this.particles.Count > 0.8)
            {
                this.shape = ParticleShape.Globular;
                this.area = this.diameter* this.diameter*(Math.PI/4);
            }
            else
            {
                this.shape = ParticleShape.Elongated;
                this.area = this.physicalLength * this.physicalWidth * (Math.PI / 4);
            }
            this.areaK = this.particles.Sum(m => m.areaK);
            this.shapeFactor = Math.Log((Math.PI / 4)*(this.physicalLength * this.physicalLength / this.area) / Math.Log(this.physicalLength / 1));
            this.lwRatio = Math.Round(this.physicalLength / this.physicalWidth,2);
            this.rectProfile = new Rectangle(minx, miny, maxx - minx, maxy - miny);
            this.rectKMethodProfile = new Rectangle(minxK, minyK, maxx - minx, maxy - miny);
            this.standard.determineType(this);
        }
    }

    /// <summary>
    /// 排列方式
    /// </summary>
    public enum InclusionArrangement
    {
        /// <summary>
        /// 分散的
        /// </summary>
        Scattered,
        /// <summary>
        /// 排成行的
        /// </summary>
        Aligned
    }

    /// <summary>
    /// 形状
    /// </summary>
    public enum ParticleShape
    {
        /// <summary>
        /// 拉长的
        /// </summary>
        Elongated,
        /// <summary>
        /// 球状的
        /// </summary>
        Globular
    }

    /// <summary>
    /// 夹杂物分类
    /// </summary>
    public enum ClassesOfInclusions
    {
        α, β, γ, δ
    }
}