using ORiN2.ManagedCAO;
using System;
using System.Windows.Forms;

namespace LaserMarkerSample
{
    public partial class Form1 : Form
    {
        private CCaoEngine _eng;
        private CCaoWorkspace _ws;
        private CCaoController _ctrl;
        private CCaoVariable _var;

        enum Status
        {
            Connected,
            Access,
            Disconnected
        }

        public Form1()
        {
            InitializeComponent();

            // Create CaoEngine
            _eng = new CCaoEngine();

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

            // Initialize Window
            _rbnRelay.Checked = true;
            _cmbRelayDevice.SelectedIndex = 0;
            _cmbRegisterDevice.SelectedIndex = 0;
            _cmbSize.SelectedIndex = 0;

            ChangeWindow(Status.Disconnected);
        }

        private void _btnConnect_Click(object sender, EventArgs e)
        {
            // Create CaoController Option
            var optionString = "Conn=com:" + _nudCom.Value;

            optionString += ",Timeout=" + _nudConnectTimeout.Value;

            try
            {
                // Create CaoController
                _ctrl = _ws.AddController("ctrl", "CaoProv.TCmini", string.Empty, optionString);

                ChangeWindow(Status.Connected);
            }
            catch (Exception ex)
            {
                MessageBox.Show(this, ex.Message);
            }
        }

        private void _btnDisconnect_Click(object sender, EventArgs e)
        {
            try
            {
                // Delete CaoController
                if (_ctrl != null)
                {
                    _ws.Controllers.Remove(_ctrl.Index);
                    _ctrl = null;
                }

                ChangeWindow(Status.Disconnected);
            }
            catch (Exception ex)
            {
                MessageBox.Show(this, ex.Message);
            }
        }

        private void _btnSet_Click(object sender, EventArgs e)
        {
            var varName = "";

            // Select Relay
            if(_rbnRelay.Checked == true)
            {
                varName = SetRelayVarName();
            }
            else
            {
                varName += _cmbRegisterDevice.Text + Decimal.ToInt32(_nudRegisterAddress.Value).ToString("X3");
            }

            try
            {
                // Create CaoVariable
                _var = _ctrl.AddVariable(varName, "");
                ChangeWindow(Status.Access);
            }
            catch (Exception ex)
            {
                MessageBox.Show(this, ex.Message);
            }
        }

        private string SetRelayVarName()
        {
            var varName = "";

            switch (_cmbSize.SelectedIndex)
            {
                case 0:     // 1 bit
                    varName += _cmbRelayDevice.Text + Decimal.ToInt32(_nudRelayAddress.Value).ToString("X3");
                    break;
                case 1:     // 2 Byte
                    varName += _cmbRelayDevice.Text + Decimal.ToInt32(_nudRelayAddress.Value).ToString("X2") + "W";
                    break;
                case 2:     // 1 Byte(H)
                    varName += _cmbRelayDevice.Text + Decimal.ToInt32(_nudRelayAddress.Value).ToString("X2") + "H";
                    break;
                case 3:     // 1 Byte(L)
                    varName += _cmbRelayDevice.Text + Decimal.ToInt32(_nudRelayAddress.Value).ToString("X2") + "L";
                    break;
            }

            return varName;
        }

        private void ChangeWindow(Status status)
        {
            if (status == Status.Connected)
            {
                _btnConnect.Enabled = false;
                _btnDisconnect.Enabled = true;

                _gbxSetting.Enabled = true;
                _btnAdd.Enabled = true;
                _btnDelete.Enabled = false;

                _gbxGetAndPut.Enabled = false;
            }
            else if (status == Status.Access)
            {
                _btnConnect.Enabled = false;
                _btnDisconnect.Enabled = true;

                _btnAdd.Enabled = false;
                _btnDelete.Enabled = true;

                _gbxGetAndPut.Enabled = true;
            }
            else if (status == Status.Disconnected)
            {
                _btnConnect.Enabled = true;
                _btnDisconnect.Enabled = false;

                _gbxSetting.Enabled = false;

                _gbxGetAndPut.Enabled = false;
            }
        }

        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            // Delete CaoEngine
            if(_eng != null)
            {
                _eng.Dispose();
            }
        }

        private void _btnReset_Click(object sender, EventArgs e)
        {
            // Delete CaoVariable
            if(_var != null)
            {
                _ctrl.Variables.Remove(_var.Index);
                _var = null;
            }

            ChangeWindow(Status.Connected);
        }

        private void _btnGet_Click(object sender, EventArgs e)
        {
            try
            {
                _nudData.Value = Convert.ToInt32(_var.Value);
            }
            catch (Exception ex)
            {
                MessageBox.Show(this, ex.Message);
            }
        }

        private void _btnPut_Click(object sender, EventArgs e)
        {
            try
            {
                _var.Value = _nudData.Value;
            }
            catch(Exception ex)
            {
                MessageBox.Show(this, ex.Message);
            }
            
        }

        private void _rbnRelay_CheckedChanged(object sender, EventArgs e)
        {
            _cmbRelayDevice.Enabled = true;
            _nudRelayAddress.Enabled = true;
            _cmbSize.Enabled = true;

            _cmbRegisterDevice.Enabled = false;
            _nudRegisterAddress.Enabled = false;
        }

        private void _rbtRegister_CheckedChanged(object sender, EventArgs e)
        {
            _cmbRelayDevice.Enabled = false;
            _nudRelayAddress.Enabled = false;
            _cmbSize.Enabled = false;

            _cmbRegisterDevice.Enabled = true;
            _nudRegisterAddress.Enabled = true;
        }
    }
}