using System;
using System.Collections.Generic;
using System.Diagnostics;

namespace Aitex.Core.RT.IOCore
{
    public delegate  void  SetValue<T>(int index, T Value);
    public delegate  T GetValue<T>(int index);

    public enum IOType
    {
        DI,
        DO,
        AI,
        AO,  
    }

    public class CustomIOName
    {
        public const string Shutter = "CustomIO_Shutter";
        public const string Spindle = "CustomIO_Spindle";
        public const string Bath1 = "CustomIO_Bath1";
        public const string Bath2 = "CustomIO_Bath2";
        public const string Bath3 = "CustomIO_Bath3";
        public const string Bath4 = "CustomIO_Bath4";
        
        public const string LineHeaterCh1 = "CustomIO_LineHeaterCh1";
        public const string LineHeaterCh2 = "CustomIO_LineHeaterCh2";
        public const string LineHeaterCh3 = "CustomIO_LineHeaterCh3";
        public const string LineHeaterCh4 = "CustomIO_LineHeaterCh4";
        public const string LineHeaterCh5 = "CustomIO_LineHeaterCh5";
        public const string LineHeaterCh6 = "CustomIO_LineHeaterCh6";
        public const string LineHeaterCh7 = "CustomIO_LineHeaterCh7";
        public const string LineHeaterCh8 = "CustomIO_LineHeaterCh8";

        public const string RobotX = "CustomIO_RobotX";
        public const string RobotZ = "CustomIO_RobotZ";
        public const string PLCStatus = "CustomIO_PLCStatus";
        public const string Tv = "CustomIO_TV";
    }

    public class IOAccessor<T>
    {
        protected string name;
        protected string addr;

        protected int index;
        protected T[] values;

        protected SetValue<T> setter = null;
        protected GetValue<T> getter = null;

        public T Value
        {
            get
            {
                return getter(index);
            }
            set
            {
                setter(index, value);
            }
        }

        public string Name
        {
            get { return name; }
        }

        public int Index
        {
            get { return index; }
        }


        public string Addr
        {
            get { return addr; }
        }

        public string StringIndex
        {
            get
            {
                return name.Substring(0, 2) + "-" + index.ToString();
            }
        }

        public int IoTableIndex { get; set; }

        public IOAccessor(string name, int index, T[] values) 
        {
            this.name   = name;
            this.index  = index;
            this.values = values;

            getter = GetValue;
            setter = SetValue;
        }

        private T GetValue(int index)
        {
            Debug.Assert(values!= null && index >= 0 && index < values.Length);
            return values[index];
        }


        private void SetValue(int index, T value)
        {
            Debug.Assert(values != null && index >= 0 && index < values.Length);
            values[index] = value;
        }
    }

    public class DIAccessor : IOAccessor<bool>
    {
        private IOAccessor<bool> rawAccessor;

        public bool RawData
        {
            get 
            {
                return rawAccessor.Value;
            }
            /// <summary>
            /// 修改数字量输入值
            /// 
            /// 注意：
            /// 1. 此处修改的数字量输入值在调用IOManager.Update_Input方法后将被覆写
            /// 2. 只能修改索引号为500之后定义的软件DI信号点（规定0~499为硬件输入信号点区间)
            /// </summary>
            /// <param name="index">DI索引号</param>
            /// <param name="value"></param>
            set
            {
                rawAccessor.Value = value;
            }
        }

        public DIAccessor(string name, int index, bool[] values, bool[] raws)
            :base(name, index, values)
        {
            rawAccessor = new IOAccessor<bool>(name, index, raws);
        }
    }

    public class DOAccessor : IOAccessor<bool>
    {
        public DOAccessor(string name, int index, bool[] values)
        :base(name,index, values)
        {
            setter = SetValueSafe;
        }

        public bool SetValue(bool value, out string reason)
        {
            if (IO.CanSetDO(name, value, out reason))
            {
                values[index] = value;    
                return true;
            }
            return false;
        }

        public bool Check(bool value, out string reason)
        {
            return IO.CanSetDO(name, value, out reason);
        }


        private void SetValueSafe(int index, bool value)
        {
            string reason;
            if (IO.CanSetDO(name, value, out reason))
            {
                values[index] = value;              
            }            
        }
    }

    public class AIAccessor : IOAccessor<float>
    {
        public AIAccessor(string name, int index, float[] values)
        :base(name,index, values)
        { 
        } 
    }

    public class AOAccessor : IOAccessor<float>
    {
        public AOAccessor(string name, int index, float[] values)
        :base(name,index, values)
        { 
        }
    }



    
}