using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Text;
using System.Windows.Forms;
using System.CodeDom;
using System.CodeDom.Compiler;
using System.Runtime.CompilerServices;
using System.Reflection;
using System.Xml;
using Microsoft.CSharp;

namespace DarkWynter.Shell
{
    /// <summary>
    /// Leaf ToolStripItems which contain UserControls.
    /// UserControl is persistant, and invoked by selecting the corresponding ToolStripItem.
    /// Loads the Tab property in UCAD xml.
    /// </summary>
    public class UCAD_Control : ToolStripMenuItem
    {

        // "Name of DLL where UserControls are found. (eg - "AccountingControls.dll")" 
        string assemblyName = "";
        Assembly assembly;
        private UserControl userControl;

        public string location = "";

        /// <summary>
        /// Try/Catch through Tab nodes to build the UCAD MenuStrip.
        /// 
        /// </summary>
        /// <param name="node"></param>
        public UCAD_Control(XmlNode node)
        {
            // Special Event handler calls userControl
            this.Click += new System.EventHandler(UCAD.button_Click);

            // Get MenuItem label from xml
            this.Text = node.Attributes["text"].Value;

            // Stylize
            this.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Left | System.Windows.Forms.AnchorStyles.Right)));
            this.AutoSize = true;
            this.Font = new System.Drawing.Font("Verdana", 9.00F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
            this.ForeColor = UCAD_Settings.menuForeColor;
            this.BackColor = UCAD_Settings.menuBackColor;
            //this.TextDirection = ToolStripTextDirection.Vertical270;
            //this.Size = new System.Drawing.Size(35, 20);
            //this.Size = new System.Drawing.Size(143, 22);
            

            // =="Load the assembly (eg - "DWToolbox.dll")" 
            try
            {
                assemblyName = node.Attributes["assemblyName"].Value;
                string path = GetSolutionDirectory() + assemblyName;
                assembly = Assembly.LoadFile(path);
            }
            catch (Exception e) { Console.WriteLine(e.Message); }


            try
            {
                // ==Create Object - UCAD-Xml property must be in "TopLevelNamespace.Namespace.Class" notation
                string objectName = node.Attributes["objectName"].Value;
                if (objectName != "")
                {
                    // Get the User Control from the Assembly.
                    // DEBUG: Type[] types = assembly.GetTypes();
                    userControl = (UserControl)assembly.CreateInstance(objectName);

                    // Create a unique ToolStripName so we can access the Control later.
                    this.Name = "button_" + objectName;
                }

                // Load UCAD Interface, which connects Toolbox to Shell
                if (userControl is DarkWynter.Engine.Utilities.IUCAD)
                {
                    Load_UCADInterfaceControl();
                }


                // Set width and height of UserControl
                try
                {
                    userControl.Width = int.Parse(node.Attributes["width"].Value);
                    userControl.Height = int.Parse(node.Attributes["height"].Value);
                    userControl.Location = new Point(0, 0);
                }
                catch (Exception e) { Console.WriteLine(e.Message); }


                // Location, or panel-name where the UserControl is loaded.
                try
                {
                    location = node.Attributes["location"].Value;

                }
                catch (Exception e) { Console.WriteLine(e.Message); }


                // Default-load controls into UCAD panels
                try
                {
                    if (bool.Parse(node.Attributes["initLoad"].Value))
                    {

                        Load_InitControlSet();
                    }
                }
                catch (Exception e) { Console.WriteLine(e.Message); }

            }
            catch (Exception e) { Console.WriteLine(e.Message); }

            
            //=== Recursively Add Subitems ===
            foreach (XmlNode subNode in node.ChildNodes)
            {
                // Add subcatagory
                if (subNode.Name == "Tab")
                {
                    this.DropDownItems.Add(new UCAD_Control(subNode));
                }
            }
        }

        /// <summary>
        /// If UCAD-Xml property ' initLoad="true/false" ' specifies is true, the UserControl is loaded 
        /// at execution time into the location enumerated by UCAD-Xml property ' location="Main/Side/Bottom" '.
        /// </summary>
        private void Load_InitControlSet()
        {
            if (location == "Main")
            {
                // Add the buttons UserControl to the main panel
                UCAD.UCAD_Main_Panel.Controls.Clear();
                UCAD.UCAD_Main_Panel.Controls.Add(userControl);
            }
            if (location == "Side")
            {
                // Add the buttons UserControl to the main panel
                UCAD.UCAD_Left_Panel.Controls.Clear();
                UCAD.UCAD_Left_Panel.Controls.Add(userControl);
            }
            if (location == "Bottom")
            {
                // Add the buttons UserControl to the main panel
                UCAD.UCAD_Bottom_Panel.Controls.Clear();
                UCAD.UCAD_Bottom_Panel.Controls.Add(userControl);
            }
        }

        /// <summary>
        /// IUCAD interface associates each UCAD panel with panel pointers located in Toolbox-layer UserControls.
        /// Other UserControls in Toolbox can access the UCAD panels by accessing the interface subscribers panel-pointers.
        /// </summary>
        private void Load_UCADInterfaceControl()
        {
            DarkWynter.Engine.Utilities.IUCAD ucadControl = userControl as DarkWynter.Engine.Utilities.IUCAD;

            ucadControl.UCAD_FormName = UCAD.UCAD_FormName;
            ucadControl.UCAD_Main_Panel = UCAD.UCAD_Main_Panel;
            ucadControl.UCAD_Top_Panel = UCAD.UCAD_Top_Panel;
            ucadControl.UCAD_Bottom_Panel = UCAD.UCAD_Bottom_Panel;
            ucadControl.UCAD_Left_Panel = UCAD.UCAD_Left_Panel;
        }

        /// <summary>
        /// Gets the Solution directory containing UserControl Dlls.
        /// </summary>
        /// <returns></returns>
        public static String GetSolutionDirectory()
        {
            //// Get Parent Directory
            string curDir = Directory.GetCurrentDirectory();
            return curDir + "\\";

            //String workDir = curDir.Substring(0, curDir.IndexOf("SmallBusinessEngine\\bin\\Debug"));

            //// Get Parent Directory
            //DirectoryInfo parentDir = Directory.GetParent(curDir);
            //return parentDir.FullName + "\\";
        }

        /// <summary>
        /// Gets the associated persistant user-control.
        /// </summary>
        /// <returns></returns>
        public UserControl GetUserControl()
        {
            return userControl;
        }

        public string GetControlLocation()
        {
            return location;
        }
    }
}