using System;
using System.Linq;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO.Ports;

namespace _7k_ai
{
    public partial class Form1 : Form
    {
        IntPtr hPort;

        public Form1()
        {
            InitializeComponent();
            //Load com port data to comobox Object
            LoadComPort();
            btnCloseCOM.Enabled = false;
        }

        private void LoadComPort()
        {
            //Set default
            int counter = 10;

            //Get number of COM port and  assign COM port list in cmPort.
            foreach (string s in SerialPort.GetPortNames())
            {
                if (s.Length == 4)
                {
                    //COM0~COM9
                    cmbComPort.Items.Add(s);
                }
                else
                {
                    /*
                     COM10 and later
                     New com port name:
                           "$device\\COM10" ,
                           "$device\\COM11" ,
                           "$device\\COM12" ,
                           "$device\\COM13" ,                                                      
                           .................                                                                                            
                     */
                    string ss;
                    ss = "COM" + counter.ToString();
                    counter++;
                    cmbComPort.Items.Add(ss);
                }
            }

            cmbComPort.SelectedIndex = 0;
        }

        private void btnOpenCOM_Click(object sender, EventArgs e)
        {
            //Open com port
            this.hPort = PACNET.UART.Open(cmbComPort.Text + "," + txtBaurdRate.Text);

            if (hPort == (IntPtr)(-1))
            {
                uint ec = PACNET.ErrHandling.GetLastError();
                MessageBox.Show(((PACNET.ErrCode)ec).ToString() + "\nError Code: 0x" + ec.ToString("X"));
            }
            else
            {
                btnOpenCOM.Enabled = false;
                btnCloseCOM.Enabled = true;
            }
        }

        private void btnReadAI_Click(object sender, EventArgs e)
        {
            float fValue = 0;
            bool iRet;
            int intReadChannel = int.Parse(txtReadChannel.Text);
            int intChannel = int.Parse(txtChannel.Text);

            if (intReadChannel <= intChannel)
            {
                //Read data
                iRet = PACNET.PAC_IO.ReadAI(hPort, PACNET.PAC_IO.PAC_REMOTE_IO(Convert.ToInt32(txtAddress.Text)), Convert.ToInt32(txtReadChannel.Text), Convert.ToInt16(txtChannel.Text), ref fValue);
                
                if (!iRet)
                {
                    uint ec = PACNET.ErrHandling.GetLastError();
                    MessageBox.Show(((PACNET.ErrCode)ec).ToString() + "\nError Code: 0x" + ec.ToString("X"));
                }
                else
                {
                    txtAIValue.Text = fValue.ToString();

                }
            }
            else
            {
                MessageBox.Show("Your read channel is error , please rewrite read channel");
            }      
        }

        private void btnCloseCOM_Click(object sender, EventArgs e)
        {
            //Close com port
            PACNET.UART.Close(hPort);
            btnOpenCOM.Enabled = true;
            btnCloseCOM.Enabled = false;
        }

        private void button1_Click(object sender, EventArgs e)
        {
            int buffsize = Convert.ToInt16(txtChannel.Text);

            float[] fValue = new float[buffsize];
            bool iRet;
            int intReadChannel = int.Parse(txtReadChannel.Text);
            int intChannel = int.Parse(txtChannel.Text);

            int len = 0;

            if (intReadChannel <= intChannel)
            {
                //Read data
                iRet = PACNET.PAC_IO.ReadAIAllExt(
                    hPort, 
                    PACNET.PAC_IO.PAC_REMOTE_IO(Convert.ToInt32(txtAddress.Text)), 
                    fValue,
                    buffsize,
                    ref len);

                if (!iRet)
                {
                    uint ec = PACNET.ErrHandling.GetLastError();
                    MessageBox.Show(((PACNET.ErrCode)ec).ToString() + "\nError Code: 0x" + ec.ToString("X"));
                }
                else
                {
                    textBox1.Text = "";

                    for (int i = 0; i < buffsize; i++)
                    {
                        textBox1.Text += i + ": " + fValue[i] + "\r\n";
                    }

                    textBox1.Text += "real total channel: " + len + "\r\n";
                }
            }
            else
            {
                MessageBox.Show("Your read channel is error , please rewrite read channel");
            }      
        }
    }
}