#region Logging Defines
// include this any class or method that required logging, and comment-out what is not needed
#define LOGGING_ENABLED // this is only valid within the logger class
#region Enabled logging levels
#define LOGGING_ENABLE_INFO
#define LOGGING_ENABLE_WARN
#define LOGGING_ENABLE_DEBUG
#define LOGGING_ENABLE_VERBOSEDEBUG
#define LOGGING_ENABLE_ERROR
#define LOGGING_ENABLE_VERBOSEERROR
#define LOGGING_ENABLE_PROFILER
#endregion
#endregion
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using WeifenLuo.WinFormsUI.Docking;
using System.IO;
using RomCheater.Logging;
using RomCheater.Core;
using RomCheater.PluginFramework.Core;

namespace RomCheater.ScratchPad
{
    public partial class ScratchPad : DockContent
    {

        private UserControlPlugin plugin;
        private bool PostInitDone = false;
        public ScratchPad(UserControlPlugin plugin)
        {
            this.plugin = plugin;
            InitPluginFramework();
            InitializeComponent();            
            this.PerformPreInit();
        }


        private void InitPluginFramework()
        {
            if (this.plugin == null) { return; }
            this.plugin.OnSelectedProcessChanged += new BaseEventHandler<ProcessChangedEventArgs>(plugin_OnSelectedProcessChanged);
            this.plugin.OnSelectedConfigChanged += new BaseEventHandler<ConfigChangedEventArgs>(plugin_OnSelectedConfigChanged);
            this.plugin.OnPEDataUpdated += new BaseEventHandler<PEViewerDataUpdatedEventArgs>(plugin_OnPEDataUpdated);
            RaisePluginFrameworkEvents();
        }

        bool EventsRaised = false;
        private void RaisePluginFrameworkEvents()
        {

            if (this.plugin == null) { EventsRaised = true; return; }
            if (!EventsRaised)
            {
                this.plugin.RaisePluginFrameworkEvents();
                EventsRaised = true;
            }
        }

        void plugin_OnPEDataUpdated(PEViewerDataUpdatedEventArgs e)
        {
            //logger.Warn.WriteLine("plugin_OnPEDataUpdated::has not been implemented!");
        }
        void plugin_OnSelectedConfigChanged(ConfigChangedEventArgs e)
        {
            //logger.Warn.WriteLine("plugin_OnSelectedConfigChanged::has not been implemented!");
        }
        void plugin_OnSelectedProcessChanged(ProcessChangedEventArgs e)
        {
            //logger.Warn.WriteLine("plugin_OnSelectedProcessChanged::has not been implemented!");           
        }


        private void PerformPreInit()
        {
            txtScratchPad.Font = new System.Drawing.Font(txtScratchPad.Font, FontStyle.Italic);
            txtScratchPad.ForeColor = SystemColors.GrayText;
            StringBuilder builder = new StringBuilder();
            txtScratchPad.Clear();

            builder.AppendFormat(System.Environment.NewLine);
            builder.AppendFormat("\tThis is a scratchpad");
            builder.AppendFormat(System.Environment.NewLine);
            builder.AppendFormat("\tYou can type anything in here, and save it for later or load an existing file.");

            txtScratchPad.AppendText(builder.ToString());
        }


        private void PerformSaveOperation()
        {
        }

        private void mnuItemSave_Click(object sender, EventArgs e)
        {
            PerformPostInit();
            DialogResult result = ScracthPadSaver.ShowDialog();
            if (result != DialogResult.OK) { return; }
            try
            {
                using (FileStream fs = new FileStream(ScracthPadSaver.FileName, FileMode.OpenOrCreate, FileAccess.Write, FileShare.Read))
                {
                    try
                    {
                        using (StreamWriter sw = new StreamWriter(fs))
                        {
                            string line = string.Empty;
                            using (StringReader sr = new StringReader(txtScratchPad.Text))
                            {
                                while ((line = sr.ReadLine()) != null)
                                {
                                    sw.WriteLine(line);
                                }
                            }
                            sw.Flush();
                            sw.Close();
                        }
                    }
                    catch (Exception ex)
                    {
                        logger.Error.WriteLine("Failed to save file: {0}", ScracthPadSaver.FileName);
                        logger.VerboseError.WriteLine(ex.ToString());
                        MessageBox.Show(string.Format("Failed to save: '{0}'", new FileInfo(ScracthPadSaver.FileName).Name), "", MessageBoxButtons.OK, MessageBoxIcon.Error);
                        return;
                    }
                }
                MessageBox.Show(string.Format("Successfully saved file: '{0}'", new FileInfo(ScracthPadSaver.FileName).Name), "", MessageBoxButtons.OK, MessageBoxIcon.Information);
            }
            catch (Exception ex)
            {
                logger.Error.WriteLine("Failed to save file: {0}", ScracthPadSaver.FileName);
                logger.VerboseError.WriteLine(ex.ToString());
                MessageBox.Show(string.Format("Failed to save: '{0}'", new FileInfo(ScracthPadSaver.FileName).Name), "", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void mnuItemOpen_Click(object sender, EventArgs e)
        {
            PerformPostInit();
            DialogResult result = ScracthPadLoader.ShowDialog();
            if (result != DialogResult.OK) { return; }
            txtScratchPad.Clear();

            try
            {
                using (FileStream fs = new FileStream(ScracthPadLoader.FileName, FileMode.Open, FileAccess.Read, FileShare.Read))
                {
                    try
                    {
                        using (StreamReader sr = new StreamReader(fs))
                        {
                            txtScratchPad.AppendText(sr.ReadToEnd());
                        }
                    }
                    catch (Exception ex)
                    {
                        logger.Error.WriteLine("Failed to open file: {0}", ScracthPadLoader.FileName);
                        logger.VerboseError.WriteLine(ex.ToString());
                        MessageBox.Show(string.Format("Failed to open: '{0}'", new FileInfo(ScracthPadLoader.FileName).Name), "", MessageBoxButtons.OK, MessageBoxIcon.Error);
                        return;
                    }
                    //MessageBox.Show(string.Format("Successfully opened file: '{0}'", new FileInfo(ScracthPadLoader.FileName).Name), "", MessageBoxButtons.OK, MessageBoxIcon.Information);
                }
            }
            catch (Exception ex)
            {
                logger.Error.WriteLine("Failed to open file: {0}", ScracthPadLoader.FileName);
                logger.VerboseError.WriteLine(ex.ToString());
                MessageBox.Show(string.Format("Failed to open: '{0}'", new FileInfo(ScracthPadLoader.FileName).Name), "", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }

            txtScratchPad.SelectionStart = 0;
            txtScratchPad.ScrollToCaret();

        }


        private void PerformPostInit()
        {
            if (!PostInitDone)
            {
                txtScratchPad.Clear();
                txtScratchPad.Font = new System.Drawing.Font(txtScratchPad.Font, FontStyle.Regular);
                txtScratchPad.ForeColor = Color.Black;
                PostInitDone = true;
            }  
        }
        private void txtScratchPad_MouseDown(object sender, MouseEventArgs e)
        {
            PerformPostInit();
        }

        private void txtScratchPad_KeyDown(object sender, KeyEventArgs e)
        {
            PerformPostInit();
        }

        private void mnuItemUndo_Click(object sender, EventArgs e)
        {
            PerformPostInit();
            txtScratchPad.Focus();
            SendKeys.Send("^Z");
        }

        private void mnuItemRedo_Click(object sender, EventArgs e)
        {
            PerformPostInit();
            txtScratchPad.Focus();
            SendKeys.Send("^Y");
        }

        private void mnuItemClear_Click(object sender, EventArgs e)
        {
            txtScratchPad.Clear();
        }

        private void mnuItemCopy_Click(object sender, EventArgs e)
        {
            PerformPostInit();
            string text = txtScratchPad.Text;
            text = text.Replace("\n", System.Environment.NewLine);
            Clipboard.SetText(text);
        }

        private void mnuItemPaste_Click(object sender, EventArgs e)
        {
            PerformPostInit();
            string text = Clipboard.GetText();
            txtScratchPad.Text = text;
        }

        private void ScratchPad_FormClosing(object sender, FormClosingEventArgs e)
        {
            if (txtScratchPad.Text != string.Empty && PostInitDone)
            {
                DialogResult result = MessageBox.Show("Would you like to save the ScratchPad data before Closing?", "", MessageBoxButtons.YesNoCancel, MessageBoxIcon.Question, MessageBoxDefaultButton.Button1);
                if (result == DialogResult.Cancel)
                {
                    e.Cancel = true;
                    return;
                }
                if (result == DialogResult.Yes)
                {
                    mnuItemSave.PerformClick();
                }
            }
        }

        private void ScratchPad_Deactivate<T>(object sender, T e) where T: EventArgs
        {
            try
            {
                FormClosingEventArgs args = (e as FormClosingEventArgs);
                ScratchPad_FormClosing(sender, args);
            }
            catch { }
        }

        private void txtScratchPad_LinkClicked(object sender, LinkClickedEventArgs e)
        {
            //System.Diagnostics.Process.Start(e.LinkText);
            if (this.plugin != null)
            {
                var p = this.plugin.WebBrowserInterface;
                if (p != null)
                {
                    p.Navigate(e.LinkText);
                }
                else
                {
                    logger.Debug.WriteLine("Could not navigate to url: '{0}'", e.LinkText);
                    logger.Debug.WriteLine("Could not obtain a handle to the WebBrowser Provider's Interface.");
                }
            }
            else
            {
                logger.Debug.WriteLine("Could not navigate to url: '{0}'", e.LinkText);
                logger.Debug.WriteLine("Loaded plugin is null");
            }
        }
    }
}