using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using Modbus;
using Modbus.Device;
using Modbus.Data;
using System.Net;
using System.Net.Sockets;
using System.IO.Ports;
namespace Input_Status
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        private SerialPort comPort = new SerialPort();
        IModbusSerialMaster master;
        private void Form1_Load(object sender, EventArgs e)
        {
            cmbBaud.SelectedIndex = 7;
            cmbDataBit.SelectedIndex = 1;
            cmbParity.SelectedIndex = 0;
            cmbStopBit.SelectedIndex = 0;
            foreach (string s in SerialPort.GetPortNames())
                cmbPort.Items.Add(s);
            cmbPort.SelectedIndex = 0;
        }

        private void timerScan_Tick(object sender, EventArgs e)
        {
            CheckBox[] checkbox = new CheckBox[] { ckbCH0, ckbCH1, ckbCH2, ckbCH3, ckbCH4, ckbCH5, ckbCH6, ckbCH7, ckbCH8, ckbCH9 };
            try
            {
                string sKey = "";
                byte slaveID = 1;
                ushort startAddress = 0;
                ushort numInputs = ushort.Parse(txtChannelNumber.Text);
                bool[] inputs = master.ReadCoils(slaveID, startAddress, numInputs);
                for (int i = 0; i < numInputs; i++)
                {
                    sKey += i.ToString() + "=>" + Convert.ToInt32(inputs[i]) + "\r\r";
                    if ((i + 1) % 3 == 0)
                        sKey += "\n";
                }
                txtMsg.Text = sKey;
                int index = 0;
                if (numInputs > 10)
                    index = 10;
                else
                    index = numInputs;
                for (int i = 0; i < index; i++)//input channel statue
                {
                    if (Convert.ToInt32(inputs[i]) > 0)
                    {
                        checkbox[i].Checked = true;
                    }
                    else
                        checkbox[i].Checked = false;
                }
            }
            catch (Exception ex)
            {
                btCloseCOM_Click(sender, e);
                MessageBox.Show(ex.Message);
            }
        }
        private void txtChannelNumber_TextChanged(object sender, EventArgs e)
        {

        }
        private void ckbCH0_CheckStateChanged(object sender, EventArgs e)
        {
            ushort Address = 0;//
            byte slaveID = 1;
            if (ckbCH0.Checked == true)
            {
                master.WriteSingleCoil(slaveID, Address, true);
            }
            else
                master.WriteSingleCoil(slaveID, Address, false);
        }

        private void ckbCH1_CheckStateChanged(object sender, EventArgs e)
        {
            ushort Address = 1;//
            byte slaveID = 1;
            if (ckbCH1.Checked == true)
            {
                master.WriteSingleCoil(slaveID, Address, true);
            }
            else
                master.WriteSingleCoil(slaveID, Address, false);
        }

        private void ckbCH2_CheckStateChanged_1(object sender, EventArgs e)
        {
            ushort Address = 2;//
            byte slaveID = 1;
            if (ckbCH2.Checked == true)
            {
                master.WriteSingleCoil(slaveID, Address, true);
            }
            else
                master.WriteSingleCoil(slaveID, Address, false);
        }

        private void ckbCH3_CheckStateChanged(object sender, EventArgs e)
        {
            ushort Address = 3;//
            byte slaveID = 1;
            if (ckbCH3.Checked == true)
            {
                master.WriteSingleCoil(slaveID, Address, true);
            }
            else
                master.WriteSingleCoil(slaveID, Address, false);
        }

        private void ckbCH4_CheckStateChanged(object sender, EventArgs e)
        {
            ushort Address = 4;//
            byte slaveID = 1;
            if (ckbCH4.Checked == true)
            {
                master.WriteSingleCoil(slaveID, Address, true);
            }
            else
                master.WriteSingleCoil(slaveID, Address, false);
        }

        private void ckbCH5_CheckStateChanged(object sender, EventArgs e)
        {
            ushort Address = 5;//
            byte slaveID = 1;
            if (ckbCH5.Checked == true)
            {
                master.WriteSingleCoil(slaveID, Address, true);
            }
            else
                master.WriteSingleCoil(slaveID, Address, false);
        }

        private void ckbCH6_CheckStateChanged(object sender, EventArgs e)
        {
            ushort Address = 6;//
            byte slaveID = 1;
            if (ckbCH6.Checked == true)
            {
                master.WriteSingleCoil(slaveID, Address, true);
            }
            else
                master.WriteSingleCoil(slaveID, Address, false);
        }

        private void ckbCH7_CheckStateChanged(object sender, EventArgs e)
        {
            ushort Address = 7;//
            byte slaveID = 1;
            if (ckbCH7.Checked == true)
            {
                master.WriteSingleCoil(slaveID, Address, true);
            }
            else
                master.WriteSingleCoil(slaveID, Address, false);
        }

        private void ckbCH8_CheckStateChanged(object sender, EventArgs e)
        {
            ushort Address = 8;//
            byte slaveID = 1;
            if (ckbCH8.Checked == true)
            {
                master.WriteSingleCoil(slaveID, Address, true);
            }
            else
                master.WriteSingleCoil(slaveID, Address, false);
        }

        private void ckbCH9_CheckStateChanged(object sender, EventArgs e)
        {
            ushort Address = 9;//
            byte slaveID = 1;
            if (ckbCH9.Checked == true)
            {
                master.WriteSingleCoil(slaveID, Address, true);
            }
            else
                master.WriteSingleCoil(slaveID, Address, false);
        }

        private void butONOFF_Click(object sender, EventArgs e)
        {
            ushort Address = ushort.Parse(txtChannel.Text);//chanell bigger than 10
            byte slaveID = 1;
            if (butONOFF.Text == "ON")
            {
                master.WriteSingleCoil(slaveID, Address, true);
                butONOFF.Text = "OFF";
            }
            else
            {
                master.WriteSingleCoil(slaveID, Address, false);
                butONOFF.Text = "ON";
            }
        }

        private void textBox8_TextChanged(object sender, EventArgs e)
        {

        }

        private void txtChannel_TextChanged_1(object sender, EventArgs e)
        {
            butONOFF.Text = "ON";
        }



        private void btOpenCOM_Click(object sender, EventArgs e)
        {
            comPort.PortName = cmbPort.Text;
            comPort.BaudRate = int.Parse(cmbBaud.Text);
            comPort.DataBits = int.Parse(cmbDataBit.Text);
            if (cmbParity.Text.Substring(0, 1) == "0")
            {
                comPort.Parity = Parity.None;
            }
            else if (cmbParity.Text.Substring(0, 1) == "1")
            {
                comPort.Parity = Parity.Odd;
            }
            else if (cmbParity.Text.Substring(0, 1) == "2")
            {
                comPort.Parity = Parity.Even;
            }
            if (cmbStopBit.Text == "0")
            {
                comPort.StopBits = StopBits.None;
            }
            else if (cmbStopBit.Text == "1")
            {
                comPort.StopBits = StopBits.One;
            }
            comPort.Open();
            master = ModbusSerialMaster.CreateRtu(comPort);
            master.Transport.Retries = 0;
            master.Transport.ReadTimeout = 200;
            btOpenCOM.Enabled = false;
            btCloseCOM.Enabled = true;
            timerScan.Enabled = true;
            txtChannelNumber.Enabled = false;
            if (Int16.Parse(txtChannelNumber.Text) > 10)
            {
                label4.Enabled = true;
                txtChannel.Enabled = true;
                butONOFF.Enabled = true;
            }
            CheckBox[] checkbox = new CheckBox[] { ckbCH0, ckbCH1, ckbCH2, ckbCH3, ckbCH4, ckbCH5, ckbCH6, ckbCH7, ckbCH8, ckbCH9 };
            for (int i = 0; i < 10; i++)
            {
                checkbox[i].Enabled = true;
            }
        }

        private void btCloseCOM_Click(object sender, EventArgs e)
        {
            comPort.Close();
            btOpenCOM.Enabled = true;
            btCloseCOM.Enabled = false;
            timerScan.Enabled = false;
            txtChannelNumber.Enabled = true;
            label4.Enabled = false;
            txtChannel.Enabled = false;
            butONOFF.Enabled = false;
            CheckBox[] checkbox = new CheckBox[] { ckbCH0, ckbCH1, ckbCH2, ckbCH3, ckbCH4, ckbCH5, ckbCH6, ckbCH7, ckbCH8, ckbCH9 };
            for (int i = 0; i < 10; i++)
            {
                checkbox[i].Enabled = false;
            }
        }

        private void Form1_Closed(object sender, EventArgs e)
        {
            comPort.Close();
        }


    }
}