using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using System.Text;

///I-8088W version 1.0.0.6, 2011/07/05
///I-8088W version 1.0.0.7, 2011/07/19
///remove SetPWMDutyCount function
namespace pac8026WNet
{
    public class pac8026W
    {

        private class ICPDAS
        {
            // for I/O version management
            [DllImport("pac_i8026W.dll", EntryPoint = "pac_i8026W_GetLibVersion")]
            public static extern Int16 pac_i8026W_GetLibVersion();

            [DllImport("pac_i8026W.dll", EntryPoint = "pac_i8026W_GetLibDate")]
            public static extern void pac_i8026W_GetLibDate(byte[] libDate);

            [DllImport("pac_i8026W.dll", EntryPoint = "pac_i8026W_GetFirmwareVer")]
            public static extern Int16 pac_i8026W_GetFirmwareVer(int Slot);

            [DllImport("pac_i8026W.dll", EntryPoint = "pac_i8026W_Init")]
            public static extern Int16 pac_i8026W_Init(int Slot);

            [DllImport("pac_i8026W.dll", EntryPoint = "pac_i8026W_WriteDO")]
            public static extern void pac_i8026W_WriteDO(int slot, Int16 doVal);
            
            [DllImport("pac_i8026W.dll", EntryPoint = "pac_i8026W_WriteDOBit")]
            public static extern void pac_i8026W_WriteDOBit(int slot, int chIndex, Int16 bitVal);
            
            [DllImport("pac_i8026W.dll", EntryPoint = "pac_i8026W_ReadDIO")]
            public static extern Int16 pac_i8026W_ReadDIO(int slot, ref Int16 diVal, ref Int16 doVal, byte[] diBitArr, byte[] doBitArr);


            [DllImport("pac_i8026W.dll", EntryPoint = "pac_i8026W_WriteAO")]
            public static extern Int16 pac_i8026W_WriteAO(int slot, int chIndex, Int16 gain, float aoData);

            [DllImport("pac_i8026W.dll", EntryPoint = "pac_i8026W_WriteAOHex")]
            public static extern Int16 pac_i8026W_WriteAOHex(int slot, int chIndex, Int16 gain, Int16 hexData);

            [DllImport("pac_i8026W.dll", EntryPoint = "pac_i8026W_ReadbackAO")]
            public static extern Int16  pac_i8026W_ReadbackAO(int slot, int chIndex, ref float fVal);

            [DllImport("pac_i8026W.dll", EntryPoint = "pac_i8026W_ReadbackAOHex")]
            public static extern Int16 pac_i8026W_ReadbackAOHex(int slot, int chIndex, ref Int16 hVal);

            [DllImport("pac_i8026W.dll", EntryPoint = "pac_i8026W_ReadAO_GainOffset")]
            public static extern void pac_i8026W_ReadAO_GainOffset(int slot, int chIndex, Int16 gain, ref UInt16 gainValue, ref Int16 offsetValue);

            
            
            [DllImport("pac_i8026W.dll", EntryPoint = "pac_i8026W_ReadAIHex")]
            public static extern Int16 pac_i8026W_ReadAIHex(int slot, int chIndex, Int16 gain, ref Int16 hVal);

            [DllImport("pac_i8026W.dll", EntryPoint = "pac_i8026W_ReadAI")]
            public static extern Int16  pac_i8026W_ReadAI(int slot, int chIndex, short gain, ref float fVal);
            //
            // public static extern float pac_i8026W_ReadAI(int slot, int chIndex, Int16 gain);

            [DllImport("pac_i8026W.dll", EntryPoint = "pac_i8026W_ReadAIRefGainEEP")]
            public static extern Int16 pac_i8026W_ReadAIRefGainEEP(int slot, int ch, Int16 gain, ref UInt16 gainValue);

            

        }

        /// <summary>
        /// Get the library version of this DLL (pac_i8026W.dll)
        /// </summary>
        /// <returns>library version</returns>
        public static Int16 LibVersion()
        {
            return ICPDAS.pac_i8026W_GetLibVersion();
        }

        /// <summary>
        /// Get the firmware version of I-8088W in the specified slot.
        /// </summary>
        /// <param name="slot">1 ~ 7 (the slot which I-8088W is inserted)</param>
        /// <returns>firmware version</returns>
        public static Int16 FirmwareVersion(int slot)
        {
            return ICPDAS.pac_i8026W_GetFirmwareVer(slot);
        }

        /// <summary>
        /// Get the building date of this DLL (pac_i8026W.dll)
        /// </summary>
        /// <returns>library building date</returns>
        public static string LibDate()
        {
            //return Arr2Str(ICPDAS.pac_i8017H_GetLibDate());
            byte[] libDate = new byte[32];
            ICPDAS.pac_i8026W_GetLibDate(libDate);
            return AscArr2Str(libDate);
        }

        /// <summary>
        /// Initialize the I-8088W in the specified slot
        /// </summary>
        /// <param name="slot">1 ~ 7 (the slot which I-8088W is inserted)</param>
        /// <returns>the Error Codes which are defined in pac_i8026W.h</returns>
        public static Int16 Init(int slot)
        {
            return ICPDAS.pac_i8026W_Init(slot);
        }


        private static string AscArr2Str(byte[] b)
        {
            return System.Text.UnicodeEncoding.Unicode.GetString(
            System.Text.ASCIIEncoding.Convert(System.Text.Encoding.ASCII,
            System.Text.Encoding.Unicode, b), 0, b.Length);
        }
        public static string Arr2Str(byte[] buffer)
        {
            return (new UnicodeEncoding()).GetString(buffer, 0, buffer.Length);
        }


        public static void WriteDO(int slot, Int16 doVal)
        {
            ICPDAS.pac_i8026W_WriteDO(slot, doVal);
        }


        public static void WriteDOBit(int slot, int chIndex, Int16 bitVal)
        {
            ICPDAS.pac_i8026W_WriteDOBit(slot, chIndex, bitVal);
        }

        public static Int16 ReadDIO(int slot, ref Int16 diVal, ref Int16 doVal, byte[] diBitArr, byte[] doBitArr)
        {
            return ICPDAS.pac_i8026W_ReadDIO(slot, ref  diVal, ref  doVal, diBitArr, doBitArr);
        }

        public static Int16 WriteAO(int slot, int chIndex, Int16 gain, float aoData)
        {
            return ICPDAS.pac_i8026W_WriteAO(slot, chIndex, gain, aoData);
        }

        public static Int16 WriteAOHex(int slot, int chIndex, Int16 gain, Int16 hexData)
        {
            return ICPDAS.pac_i8026W_WriteAOHex(slot, chIndex, gain, hexData);
        }


        public static Int16  AOReadback(int slot, int chIndex, ref float fVal)
        {

            return ICPDAS.pac_i8026W_ReadbackAO(slot, chIndex, ref fVal);
            
        }

        public static Int16 AOHexReadback(int slot, int chIndex, ref Int16 hVal)
        {           
            return ICPDAS.pac_i8026W_ReadbackAOHex(slot, chIndex,ref hVal );
        }


        public static void ReadAO_GainOffset(int slot, int chIndex, Int16 gain, ref UInt16 gainValue, ref Int16 offsetValue)
        {

            ICPDAS.pac_i8026W_ReadAO_GainOffset(slot, chIndex, gain, ref  gainValue, ref  offsetValue);
        }






        // QC 專用
        // rV =0, 4 倍參考電壓 , 1 2 倍參考電壓
        // 10-bit refGain for ref Voltage
        // 程式對 library 傳入 gain 數值
        //
        public static Int16 ReadAIRefGainEEP(int slot, int ch, Int16 gain, ref UInt16 gainValue)
        {
            return ICPDAS.pac_i8026W_ReadAIRefGainEEP(slot, ch, gain, ref  gainValue);
        }


        public static Int16 ReadAIHex(int slot, int chIndex, Int16 gain,ref Int16 hVal)
        {
            return ICPDAS.pac_i8026W_ReadAIHex(slot, chIndex, gain, ref hVal);            
        }

        public static Int16  ReadAI(int slot, int chIndex, Int16 gain ,ref float fVal)
        {             
            return ICPDAS.pac_i8026W_ReadAI(slot, chIndex, gain, ref fVal );            
        }

       

    }
}