// Copyright (c) 2007 Omer Rauchwerger (a.k.a rauchy) (omer@rauchy.net)
// All rights reserved.
//
// This file is part of Regionerate.
// 
// This program is free software; you can redistribute it and/or modify it 
// under the terms of the GNU General Public License as published by 
// the Free Software Foundation; either version 3 of the License, 
// or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

using System;
using System.Diagnostics;
using System.IO;
using System.Reflection;
using System.Text.RegularExpressions;
using System.Windows.Forms;
using Rauchy.Regionerate.Presentation.Components.Properties;

namespace Rauchy.Regionerate.Presentation.Components
{
    public partial class SettingsForm : Form
    {
        #region Constructors (1) 

        public SettingsForm()
        {
            InitializeComponent();
            LoadSettings();
        }

        #endregion Constructors 

        #region Methods (15) 

        // Public Methods (1) 

        // [rgn] Public Methods (1)
        public void SetAutoCollapseEnabled( bool value )
        {
            autoCollapseRegions.Enabled = value;
        }

        // Private Methods (14) 

        // [rgn] Private Methods (14)
        private void browse_Click( object sender, EventArgs e )
        {
            OpenFileDialog openFileDialog = new OpenFileDialog
                                                {
                                                    Title = "Select your custom Code Layout file",
                                                    Filter = "Regionerate Code Layout File (*.xml)|*.xml"
                                                };

            if ( openFileDialog.ShowDialog() ==
                 DialogResult.OK )
            {
                customCodeLayoutPath.Text = openFileDialog.FileName;
            }
        }

        private void cancel_Click( object sender, EventArgs e )
        {
            Close();
        }

        private void contact_LinkClicked( object sender, LinkLabelLinkClickedEventArgs e )
        {
            Process.Start( Urls.Contact );
        }

        private void donate_LinkClicked( object sender, LinkLabelLinkClickedEventArgs e )
        {
            Process.Start( Urls.Donations );
        }

        private void edit_Click( object sender, EventArgs e )
        {
            try
            {
                SaveSettings();

                // Use DialogResult.Ignore to indicate the caller to edit the custom code layout file.
                // Yeah, its ugly, but subscribing and publishing an event for this seems too much ATM.
                DialogResult = DialogResult.Ignore;
                Close();

                //Process.Start( customCodeLayoutPath.Text );

                //if (
                //    MessageBox.Show( "Would you like to Regionerate to reload the custom Code Layout?", "Regionerate",
                //                     MessageBoxButtons.YesNo ) ==
                //    DialogResult.Yes )
                //{
                //    Refresh();
                //}   
            }
            catch ( FileNotFoundException fnfExecption )
            {
                MessageBox.Show( fnfExecption.Message, "Regionerate", MessageBoxButtons.OK, MessageBoxIcon.Error );
            }
        }

        private void forums_LinkClicked( object sender, LinkLabelLinkClickedEventArgs e )
        {
            Process.Start( Urls.Forums );
        }

        private void LoadSettings()
        {
            alwaysShowCodeLayoutBrowser.Checked = Settings.Default.AlwaysShowCodeLayoutBrowser;
            autoCollapseRegions.Checked = Settings.Default.AutoCollapseRegions;
            useDefaultCodeLayout.Checked = Settings.Default.UseDefaultCodeLayout;
            useCustomCodeLayout.Checked = !Settings.Default.UseDefaultCodeLayout;
            customCodeLayoutPath.Text = Settings.Default.CustomCodeLayoutPath;
            holyWarPreventionSwitch.Selection = Settings.Default.HolyWarPreventionMode;

            // Parse the keyboard shortcut value to retrieve the button and key.
            Regex expression = new Regex( @"(?<Button>.*)\+(?<Key>.)" );
            Match match = expression.Match( Settings.Default.KeyboardShortcut );
            keyboardShortcutButton.SelectedItem = match.Groups[ "Button" ].Value;
            keyboardShortcutKey.Text = match.Groups[ "Key" ].Value;
        }

        private new void Refresh()
        {
            Settings.Default.CustomCodeLayoutPath = customCodeLayoutPath.Text;
            Settings.Default.Save();
        }

        private void refresh_Click( object sender, EventArgs e )
        {
            Refresh();
        }

        private void save_Click( object sender, EventArgs e )
        {
            SaveSettings();
            DialogResult = DialogResult.OK;
            Close();
        }

        private void SaveSettings()
        {
            Settings.Default.UseDefaultCodeLayout = useDefaultCodeLayout.Checked;
            Settings.Default.KeyboardShortcut = string.Format( "{0}+{1}", keyboardShortcutButton.SelectedItem,
                                                               keyboardShortcutKey.Text );

            if ( !useDefaultCodeLayout.Checked )
            {
                string customLayoutFilePath = customCodeLayoutPath.Text;

                if ( File.Exists( customLayoutFilePath ) )
                {
                    Settings.Default.CustomCodeLayoutPath = customLayoutFilePath;
                }
                else
                {
                    if ( customLayoutFilePath.Length == 0 )
                    {
                        throw new FileNotFoundException(
                            "Unable to Save or Edit your savings because you did not provide a file." );
                    }
                    else
                    {
                        throw new FileNotFoundException(
                            string.Format( "Invalid file path at {0}", customCodeLayoutPath.Text ), "Configuration File" );
                    }
                }
            }

            Settings.Default.AlwaysShowCodeLayoutBrowser = alwaysShowCodeLayoutBrowser.Checked;
            Settings.Default.AutoCollapseRegions = autoCollapseRegions.Checked;
            Settings.Default.HolyWarPreventionMode = holyWarPreventionSwitch.Selection;
            Settings.Default.Save();
        }

        private void Settings_Shown( object sender, EventArgs e )
        {
            version.Text = string.Format( "v{0}", Assembly.GetExecutingAssembly().GetName( false ).Version );
        }

        private void useCustomCodeLayout_CheckedChanged( object sender, EventArgs e )
        {
            customCodeLayoutPath.Enabled = useCustomCodeLayout.Checked;
            edit.Enabled = useCustomCodeLayout.Checked;
            browse.Enabled = useCustomCodeLayout.Checked;
            refresh.Enabled = useCustomCodeLayout.Checked;
        }

        private void website_LinkClicked( object sender, LinkLabelLinkClickedEventArgs e )
        {
            Process.Start( Urls.Website );
        }

        #endregion Methods 
    }
}