using System.ComponentModel;
using SHJX.Service.Common.Utils;
using System.Collections.Generic;

namespace Flowchart
{
    public class FlowNode : INotifyPropertyChanged
    {
        [Browsable(false)]
        public NodeKinds Kind { get; private set; }

        private int _column;
        public int Column
        {
            get { return _column; }
            set
            {
                _column = value;
                OnPropertyChanged("Column");
            }
        }

        private int _row;
        public int Row
        {
            get { return _row; }
            set
            {
                _row = value;
                OnPropertyChanged("Row");
            }
        }

        private string _text;
        public string Text
        {
            get { return _text; }
            set
            {
                _text = value;
                OnPropertyChanged("Text");
            }
        }

        public FlowNode(NodeKinds kind)
        {
            Kind = kind;
            Text = kind.GetEnumDescription();
        }

        public IEnumerable<PortKinds> GetPorts()
        {
            switch (Kind)
            {
                case NodeKinds.Start:
                    yield return PortKinds.Bottom;
                    break;
                case NodeKinds.End:
                    yield return PortKinds.Top;
                    break;
                case NodeKinds.MotorX:
                case NodeKinds.MotorY:
                case NodeKinds.MotorZ:
                case NodeKinds.MotorZGoBack:
                case NodeKinds.ManiGrab:
                case NodeKinds.ManiLoosen:
                    yield return PortKinds.Top;
                    yield return PortKinds.Bottom;
                    break;
                case NodeKinds.Condition:
                    yield return PortKinds.Top;
                    yield return PortKinds.Bottom;
                    yield return PortKinds.Left;
                    yield return PortKinds.Right;
                    break;
            }
        }

        #region INotifyPropertyChanged Members

        public event PropertyChangedEventHandler PropertyChanged;

        protected void OnPropertyChanged(string name)
        {
            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(name));
        }

        #endregion
    }

    public enum NodeKinds
    {
        [Description("开始")]
        Start,
        [Description("结束")]
        End,
        [Description("X轴")]
        MotorX,
        [Description("Y轴")]
        MotorY,
        [Description("Z轴")]
        MotorZ,
        [Description("Z轴原点")]
        MotorZGoBack,
        [Description("杯抓")]
        ManiGrab,
        [Description("杯松")]
        ManiLoosen,
        [Description("条件")]
        Condition
    }
}