using System;
using System.Runtime.InteropServices;
public class ofSerial
{
    public ofSerial()
    {
        id = createNative();
    }
    ~ofSerial()
    {
        releaseNative(id);
    }
    public bool setup()
    {
        return setupNative(id);
    }
    public bool setup(string portName, int baudrate)
    {
        return setupWithPortNameNative(id, portName, baudrate);
    }
    public bool setup(int deviceNumber, int baudrate)
    {
        return setupWithDeviceNumberNative(id, deviceNumber, baudrate);
    }
    public bool isInitialized()
    {
        return isInitializedNative(id);
    }
    public void close()
    {
        closeNative(id);
    }
    public int available()
    {
        return availableNative(id);
    }
    public int readBytes(byte[] buffer)
    {
        return readBytes(buffer, 0, buffer.Length);
    }
    public unsafe int readBytes(byte[] buffer, int offset, int length)
    {        
        fixed (byte* p = buffer)
        {
            IntPtr ptr = (IntPtr)(p+ offset);
            // do you stuff here
            return readBytesNative(id, ptr, length);
        }
    }
    public int readByte()
    {
        return readByteNative(id);
    }
    public int writeBytes(byte[] buffer)
    {
        return writeBytes(buffer, 0, buffer.Length);
    }
    public unsafe int writeBytes(byte[] buffer,int offset, int length)
    {        
        fixed (byte* p = buffer)
        {
            IntPtr ptr = (IntPtr)(p+ offset);
            // do you stuff here
            return writeBytesNative(id, ptr, length);
        }
    }
    public bool writeByte(byte singleByte)
    {
        return writeByteNative(id, singleByte);
    }
    public void flush(bool flushIn = true, bool flushOut = true)
    {
        flushNative(id, flushIn, flushOut);
    }
    public void drain()
    {
        drainNative(id);
    }
    ////////////////////////////////////////////////////////////////////////////////////////////////////

    #region ofSerial.dll
    [DllImport("ofSerial")]
    public static extern uint createNative();

    [DllImport("ofSerial")]
    public static extern void releaseNative(uint id);
    //void listDevicesNative(uint id);
    //vector<ofSerialDeviceInfo> getDeviceList();

    [DllImport("ofSerial")]
    public static extern bool setupNative(uint id);
    [DllImport("ofSerial")]
    public static extern bool setupWithPortNameNative(uint id, [MarshalAs(UnmanagedType.LPStr)]string portName, int baudrate);
    [DllImport("ofSerial")]
    public static extern bool setupWithDeviceNumberNative(uint id, int deviceNumber, int baudrate);
    [DllImport("ofSerial")]
    public static extern bool isInitializedNative(uint id);
    [DllImport("ofSerial")]
    public static extern void closeNative(uint id);
    [DllImport("ofSerial")]
    public static extern int availableNative(uint id);
    [DllImport("ofSerial")]
    public static extern int readBytesNative(uint id, IntPtr buffer, int length);
    [DllImport("ofSerial")]
    public static extern int readByteNative(uint id);
    [DllImport("ofSerial")]
    public static extern int writeBytesNative(uint id, IntPtr buffer, int length);
    [DllImport("ofSerial")]
    public static extern bool writeByteNative(uint id, byte singleByte);
    [DllImport("ofSerial")]
    public static extern void flushNative(uint id, bool flushIn = true, bool flushOut = true);
    [DllImport("ofSerial")]
    public static extern void drainNative(uint id);
    #endregion

    private uint id = 0;

#if false
    ofSerial();
    virtual ~ofSerial();
    void listDevices();
    vector<ofSerialDeviceInfo> getDeviceList();
    bool setup();
    bool setup(string portName, int baudrate);
    bool setup(int deviceNumber, int baudrate);
    bool isInitialized() const;
    void close();
    int  available();
    int  readBytes(unsigned char* buffer, int length);
    int  readByte();
    int  writeBytes(unsigned char* buffer, int length);
    bool writeByte(unsigned char singleByte);
    void flush(bool flushIn = true, bool flushOut = true);
    void drain();
#endif
}