using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace RichCreator.Utility.Structs
{
    /// <summary>
    /// 路径信息
    /// </summary>
    public class FindPathInfo
    {
        public FindPathInfo()
        {
            Vertexs = new List<VertexInfo>();
            Edges = new List<EdgeInfo>();
            Positions = new List<PointSerialize>();
        }

        public FindPathInfo(Int32 width,Int32 height,Int32 rowcount,Int32 colcount):this()
        {
            this.Width = width;
            this.Height = height;
            this.RowCount = rowcount;
            this.ColCount = colcount;
        }



        /// <summary>
        /// 宽
        /// </summary>
        public int Width { get; set; }

        /// <summary>
        /// 高
        /// </summary>
        public int Height { get; set; }

        /// <summary>
        /// 行数量
        /// </summary>
        public int RowCount { get; set; }

        /// <summary>
        /// 列数量
        /// </summary>
        public int ColCount { get; set; }


        /// <summary>
        /// 顶点列表,顶点x_index,y_index
        /// </summary>
        public List<VertexInfo> Vertexs { get; set; }
        
        /// <summary>
        /// 顶点连接信息，线信息ZTPoint是index ->index
        /// </summary>
        public List<EdgeInfo> Edges { get; set; }
        
        /// <summary>
        /// 定位信息
        /// </summary>
        public List<PointSerialize> Positions { get; set; }

        /// <summary>
        /// 添加靠近点
        /// </summary>
        /// <param name="vertex"></param>
        public void AddVertex(Int32 index,Int32 vertexType,Int32 nearVetexIndex)
        {
            VertexInfo vertex = new VertexInfo() { Index = index, VertexType = vertexType, NearVertexIndex = nearVetexIndex };
            AddVertex(vertex);
        }


        /// <summary>
        /// 添加靠近点
        /// </summary>
        /// <param name="vertex"></param>
        public void AddVertex(VertexInfo vertex)
        {
            for (int i = 0; i < Vertexs.Count; i++)
            {
                if (Vertexs[i].Index ==vertex.Index)
                {
                    this.Vertexs[i] = vertex;
                    return;
                }
            }

            this.Vertexs.Add(vertex);
        }





        /// <summary>
        /// 是否存在顶点
        /// </summary>
        /// <param name="index"></param>
        /// <returns></returns>
        public bool VertexCanAddEdge(Int32 index)
        {
            for (int i = 0; i < this.Vertexs.Count; i++)
            {
                if (this.Vertexs[i].Index==index)
                {
                    if (this.Vertexs[i].VertexType != 1)
                    {
                        return true;
                    }
                    else
                    {
                        return false;
                    }
                }
            }
            return false;
        }

        /// <summary>
        /// 得到顶点的行列
        /// </summary>
        /// <param name="index"></param>
        /// <returns></returns>
        public void GetVertexRowColumn(out Int32 row,out Int32 col,int index)
        {
            row = index / this.ColCount;
            col = index % this.ColCount;
        }

        /// <summary>
        /// 获取json
        /// </summary>
        /// <returns></returns>
        public string ToJsonString()
        {
            string json = ZTImage.Json.JsonBuilder.ToJsonString(this);
            return json;
        }

        /// <summary>
        /// 从json字符串生成对象
        /// </summary>
        /// <param name="json"></param>
        /// <returns></returns>
        public static FindPathInfo FromJsonString(string json)
        {
            return ZTImage.Json.JsonParser.ToObject<FindPathInfo>(json);
        }


        /// <summary>
        /// 顶点信息
        /// </summary>
        public class VertexInfo
        {
            /// <summary>
            /// 顶点索引
            /// </summary>
            public Int32 Index { get; set; }

            /// <summary>
            /// 顶点类型，0：普通顶点，1：依附顶点,2:起点，3：终点
            /// </summary>
            public Int32 VertexType { get; set; }


            /// <summary>
            /// 依附顶点所依附顶点的索引
            /// </summary>
            public Int32 NearVertexIndex { get; set; }
        }


        /// <summary>
        /// 边信息
        /// </summary>
        public class EdgeInfo
        {
            /// <summary>
            /// 起点索引
            /// </summary>
            public Int32 StartIndex { get; set; }

            /// <summary>
            /// 终点索引
            /// </summary>
            public Int32 EndIndex { get; set; }

        }

        /// <summary>
        /// 可序列化点
        /// </summary>
        public class PointSerialize
        {
            public PointSerialize()
            {}

            public PointSerialize(Int32 x, Int32 y,Int32 number)
            {
                this.X = x;
                this.Y = y;
                this.Parameter = number;
            }
            public int X { get; set; }

            public int Y { get; set; }

            /// <summary>
            /// 参数
            /// </summary>
            public Int32 Parameter { get; set; }

        }
    }

}