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

namespace NJSample
{
    public partial class FrmMain : Form
    {
        private CCaoController _ctrl = null;

        public FrmMain()
        {
            InitializeComponent();
            UpdateVariableArea();
        }

        private void CreateTree()
        {
            VarInfo.RootVariableInfo info = new NJSample.VarInfo.RootVariableInfo();
            info.Create(_ctrl);

            trvVariable.Nodes.Clear();
            UpdateVariableArea();
            trvVariable.Nodes.Add(info.CreateNode());
        }

        private void btnConnect_Click(object sender, EventArgs e)
        {
            try
            {
                if (_ctrl != null)
                {
                    caoEngine.Workspaces[0].Controllers.Remove(_ctrl.Index);
                    _ctrl = null;
                }
                _ctrl = caoEngine.Workspaces[0].AddController("NJ", "CaoProv.OMRON.NJ", null, txtOption.Text);

                CreateTree();
            }
            catch (Exception ex)
            {
                MessageBox.Show(this, ex.Message, this.Text, MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void UpdateVariableArea()
        {
            txtGetValue.Text = string.Empty;
            txtGetValueType.Text = string.Empty;
            txtPutValue.Text = string.Empty;
            txtCIPType.Text = string.Empty;
            txtVariantType.Text = string.Empty;

            bool editable = false;
            VarInfo.VariableInfo info = null;
            
            if (trvVariable.SelectedNode != null)
            {
                info = trvVariable.SelectedNode.Tag as VarInfo.VariableInfo;
            }

            if (info != null)
            {
                txtVarName.Text = info.GetVariableAccessName();
                txtCIPType.Text = info.CIPType.ToString();
                txtVariantType.Text = info.VarType.ToString();
                //editable = info.HasValue;
                // for test
                editable = !string.IsNullOrEmpty(info.GetVariableAccessName());
            }
            else
            {
                txtVarName.Text = string.Empty;
            }

            txtPutValue.ReadOnly = !editable;
            btnPutValue.Enabled = editable;
            btnPutValueCtrl.Enabled = editable;

            btnGetValue.Enabled = editable;
            btnGetValueCtrl.Enabled = editable;
        }

        private void trvVariable_AfterSelect(object sender, TreeViewEventArgs e)
        {
            UpdateVariableArea();
        }

        private void btnGetValue_Click(object sender, EventArgs e)
        {
            try
            {
                VarInfo.VariableInfo info = null;

                if (trvVariable.SelectedNode != null)
                {
                    info = trvVariable.SelectedNode.Tag as VarInfo.VariableInfo;
                }

                if (info != null /* && info.HasValue*/ )
                {
                    VarInfo.GetValueResult res = info.GetValue();
                    string tp = res.Type.Name;
                    if (res.Value is Array)
                    {
                        StringBuilder sb = new StringBuilder();
                        for (int i = 0; i < ((Array)res.Value).Length; i++)
                        {
                            if (i > 0)
                            {
                                sb.Append(",");
                            }
                            else
                            {
                                tp = ((Array)res.Value).GetValue(i).GetType().Name + "[]";
                            }
                            sb.Append(Convert.ToString(((Array)res.Value).GetValue(i)));
                        }

                        txtGetValue.Text = sb.ToString();
                    }
                    else
                    {
                        txtGetValue.Text = Convert.ToString(res.Value);
                    }

                    txtGetValueType.Text = tp;
                    //txtCIPType.Text = obj == null ? "(null)" : obj.GetType().Name;
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(this, ex.Message, this.Text, MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void btnPutValue_Click(object sender, EventArgs e)
        {
            try
            {
                VarInfo.VariableInfo info = null;

                if (trvVariable.SelectedNode != null)
                {
                    info = trvVariable.SelectedNode.Tag as VarInfo.VariableInfo;
                }

                if (info != null /*&& info.HasValue*/)
                {
                    info.PutValue(GetPutValue(info));
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(this, ex.Message, this.Text, MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void btnGetValueCtrl_Click(object sender, EventArgs e)
        {
            try
            {
                VarInfo.VariableInfo info = null;

                if (trvVariable.SelectedNode != null)
                {
                    info = trvVariable.SelectedNode.Tag as VarInfo.VariableInfo;
                }

                if (info != null /*&& info.HasValue*/)
                {
                    object obj = _ctrl.Execute("GetValue", info.GetVariableAccessName());
                    string tp = obj.GetType().Name;
                    if (obj is Array)
                    {
                        StringBuilder sb = new StringBuilder();
                        for (int i = 0; i < ((Array)obj).Length; i++)
                        {
                            if (i > 0)
                            {
                                sb.Append(",");
                            }
                            else
                            {
                                tp = ((Array)obj).GetValue(i).GetType().Name + "[]";
                            }
                            sb.Append(Convert.ToString(((Array)obj).GetValue(i)));
                        }

                        txtGetValue.Text = sb.ToString();
                    }
                    else
                    {
                        txtGetValue.Text = Convert.ToString(obj);
                    }

                    txtGetValueType.Text = tp;
                    //txtCIPType.Text = obj == null ? "(null)" : obj.GetType().Name;
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(this, ex.Message, this.Text, MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void btnPutValueCtrl_Click(object sender, EventArgs e)
        {
            try
            {
                VarInfo.VariableInfo info = null;

                if (trvVariable.SelectedNode != null)
                {
                    info = trvVariable.SelectedNode.Tag as VarInfo.VariableInfo;
                }

                if (info != null /*&& info.HasValue*/)
                {
                    _ctrl.Execute("PutValue", new object[]{ info.GetVariableAccessName(), GetPutValue(info) });
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(this, ex.Message, this.Text, MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void FrmMain_Load(object sender, EventArgs e)
        {
            CCaoWorkspace ws = caoEngine.Workspaces[0];
        }

        private object GetPutValue(VarInfo.VariableInfo info)
        {
            VarInfo.ArrayVariableInfo arrInfo = info as VarInfo.ArrayVariableInfo;
            if (!chkConvertClient.Checked)
            {
                return arrInfo == null ? (object)txtPutValue.Text : (object)txtPutValue.Text.Split(',');
            }

            object obj = txtPutValue.Text;
            if (arrInfo != null)
            {
                obj = txtPutValue.Text.Split(',');
            }
            else
            {
                if (info.CIPType == CIPType.STRING)
                {
                    // do nothing
                }
                else if (info.CIPType == CIPType.ULINT ||
                    info.CIPType == CIPType.DATE_AND_TIME_NSEC ||
                    info.CIPType == CIPType.DATE_NSEC ||
                    info.CIPType == CIPType.TIME_NSEC ||
                    info.CIPType == CIPType.TIME_OF_DAY_NSEC)
                {
                    obj = Convert.ToUInt64(obj);
                }
                else if (info.CIPType == CIPType.REAL ||
                    info.CIPType == CIPType.LREAL)
                {
                    obj = Convert.ToDouble(obj);
                }
                else
                {
                    obj = Convert.ToInt64(obj);
                }
            }
            return obj;
        }
    }
}