using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using ORiN2.ManagedCAO;

namespace GetWdtSignalData
{
    public partial class Form1 : Form
    {
        private CCaoEngine _eng;
        private CCaoWorkspace _ws;
        private CCaoController _ctrl;
        private CCaoVariable _varSignal;
        private CCaoVariable _varTimeStamp;


        public Form1()
        {
            InitializeComponent();
        }

        private void btnConnect_Click(object sender, EventArgs e)
        {
            try
            {
                // Create CaoEngin
                _eng = new CCaoEngine();

                // Create CaoWorkspace
                _ws = _eng.AddWorkspace("SampleWorkSpace", "");

                // Create CaoController
                var option = "Conn=eth:" + txbIpAddress.Text + 
                             ",Interval=" + txbInterval.Text + 
                             ",FailureCount=" + txbFailureCount.Text;
                _ctrl = _ws.AddController("WDR", "CaoProv.PATLITE.WDR", string.Empty, option);

                btnConnect.Enabled = false;
                btnDisconnect.Enabled = true;
                btnGetVariableNames.Enabled = true;
                cmbMacAddress.Enabled = true;
                btnSelect.Enabled = true;
                btnCancel.Enabled = true;
            }
            catch(Exception ex)
            {
                MessageBox.Show(this, ex.Message);
            }
        }

        private void btnDisconnect_Click(object sender, EventArgs e)
        {
            try
            {
                // Delete CaoVariable
                btnCancel.PerformClick();

                // Delete CaoController,CaoWorkspace and CaoEngine
                if (_ctrl != null)
                {
                    _ws.Controllers.Remove(_ctrl.Index);
                    _ctrl = null;
                }
                if (_ws != null)
                {
                    _eng.Workspaces.Remove(_ws.Index);
                    _ws = null;
                }
                _eng = null;

                btnConnect.Enabled = true;
                btnDisconnect.Enabled = false;
                btnGetVariableNames.Enabled = false;
                cmbMacAddress.Enabled = false;
                btnSelect.Enabled = false;
                btnCancel.Enabled = false;
                btnGetValue.Enabled = false;
            }
            catch(Exception ex)
            {
                MessageBox.Show(this, ex.Message);
            }
        }

        private void btnGetVariableNames_Click(object sender, EventArgs e)
        {
            try
            {
                // Get Variable Names
                cmbMacAddress.Items.Clear();
                var variableNames = _ctrl.GetVariableNames(string.Empty);

                // In the case of no variableName
                if(variableNames == null)
                {
                    return;
                }

                foreach (var varName in variableNames)
                {
                    // The comboBox displays only Mac Address
                    if (varName.Contains("TimeStamp_"))
                    {
                        continue;
                    }
                    //cmbMacAddress.Text += variableName;
                    cmbMacAddress.Items.Add(varName);
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(this, ex.Message);
            }
        }

        private void btnSelect_Click(object sender, EventArgs e)
        {
            try
            {
                if(cmbMacAddress.Text == "")
                {
                    MessageBox.Show(this, "Plese Select Mac Address");
                    return;
                }

                // Create CaoVariable
                _varSignal = _ctrl.AddVariable(cmbMacAddress.Text.ToString(), string.Empty);
                _varTimeStamp = _ctrl.AddVariable("TimeStamp_" + cmbMacAddress.Text.ToString(), string.Empty);

                btnSelect.Enabled = false;
                btnCancel.Enabled = true;
                btnGetValue.Enabled = true;
            }
            catch (Exception ex)
            {
                MessageBox.Show(this, ex.Message);
            }
        }

        private void btnCancel_Click(object sender, EventArgs e)
        {
            try
            {
                // Delete CaoVariables
                if(_varSignal != null)
                {
                    _ctrl.Variables.Remove(_varSignal.Index);
                    _varSignal = null;
                }
                if(_varTimeStamp != null)
                {
                    _ctrl.Variables.Remove(_varTimeStamp.Index);
                    _varTimeStamp = null;
                }

                ClearTextBox();

                btnSelect.Enabled = true;
                btnCancel.Enabled = false;
                btnGetValue.Enabled = false;
            }
            catch (Exception ex)
            {
                MessageBox.Show(this, ex.Message);
            }
        }

        private void ClearTextBox()
        {
            txbRed.Clear();
            txbYellow.Clear();
            txbGreen.Clear();
            txbBlue.Clear();
            txbWhite.Clear();
            txbBuzzer.Clear();
            txbLQI.Clear();
            txbTimeStamp.Clear();
        }

        private void btnGetValue_Click(object sender, EventArgs e)
        {
            try
            {
                var signalData = (int[])_varSignal.Value;
                SetSignalData(signalData);

                var timeStampData = _varTimeStamp.Value.ToString();
                txbTimeStamp.Text = timeStampData;
            }
            catch (Exception ex)
            {
                MessageBox.Show(this, ex.Message);
            }
        }

        private void SetSignalData(int[] signalData)
        {
            txbRed.Text = signalData[0].ToString();
            txbYellow.Text = signalData[1].ToString();
            txbGreen.Text = signalData[2].ToString();
            txbBlue.Text = signalData[3].ToString();
            txbWhite.Text = signalData[4].ToString();
            txbBuzzer.Text = signalData[5].ToString();
            txbLQI.Text = signalData[6].ToString();
        }

        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            try
            {
                btnDisconnect.PerformClick();
            }
            catch(Exception ex)
            {
                MessageBox.Show(this, ex.Message);
            }
        }
    }
}