#region ================== Copyright (c) 2007 Pascal vd Heiden

/*
 * Copyright (c) 2007 Pascal vd Heiden, www.codeimp.com
 * This program is released under GNU General Public License
 * 
 * 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.
 * 
 */

#endregion

#region ================== Namespaces

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using CodeImp.DoomBuilder.Map;
using CodeImp.DoomBuilder.Data;
using CodeImp.DoomBuilder.IO;
using System.IO;
using CodeImp.DoomBuilder.Config;

#endregion

namespace CodeImp.DoomBuilder.Interface
{
	internal partial class MapOptionsForm : DelayedForm
	{
		// Variables
		private MapOptions options;
		
		// Properties
		public MapOptions Options { get { return options; } }
		
		// Constructor
		public MapOptionsForm(MapOptions options)
		{
			int index;
			
			// Initialize
			InitializeComponent();

			// Keep settings
			this.options = options;

			// Go for all configurations
			for(int i = 0; i < General.Configs.Count; i++)
			{
				// Add config name to list
				index = config.Items.Add(General.Configs[i]);

				// Is this configuration currently selected?
				if(string.Compare(General.Configs[i].Filename, options.ConfigFile, true) == 0)
				{
					// Select this item
					config.SelectedIndex = index;
				}
			}

			// Set the level name
			levelname.Text = options.CurrentName;

			// Fill the resources list
			datalocations.EditResourceLocationList(options.Resources);
		}

		// OK clicked
		private void apply_Click(object sender, EventArgs e)
		{
			Configuration newcfg;
			WAD sourcewad;
			bool conflictingname;
			
			// Configuration selected?
			if(config.SelectedIndex == -1)
			{
				// Select a configuration!
				MessageBox.Show(this, "Please select a game configuration to use for editing your map.", Application.ProductName, MessageBoxButtons.OK, MessageBoxIcon.Warning);
				config.Focus();
				return;
			}
			
			// Level name empty?
			if(levelname.Text.Length == 0)
			{
				// Enter a level name!
				MessageBox.Show(this, "Please enter a level name for your map.", Application.ProductName, MessageBoxButtons.OK, MessageBoxIcon.Warning);
				levelname.Focus();
				return;
			}

			// Level name changed and the map exists in a source wad?
			if((levelname.Text != options.CurrentName) && (General.Map != null) &&
			   (General.Map.FilePathName != "") && File.Exists(General.Map.FilePathName))
			{
				// Open the source wad file to check for conflicting name
				sourcewad = new WAD(General.Map.FilePathName, true);
				conflictingname = (sourcewad.FindLumpIndex(levelname.Text) > -1);
				sourcewad.Dispose();
				
				// Names conflict?
				if(conflictingname)
				{
					// Show warning!
					if(General.ShowWarningMessage("The map name \"" + levelname.Text + "\" is already in use by another map or data lump in the source WAD file. Saving your map with this name will cause conflicting data lumps in the WAD file. Do you want to continue?", MessageBoxButtons.YesNo, MessageBoxDefaultButton.Button2) == DialogResult.No)
					{
						return;
					}
				}
			}
			
			// Configuration changed?
			if((options.ConfigFile != "") && (General.Configs[config.SelectedIndex].Filename != options.ConfigFile))
			{
				// Load the new cfg file
				newcfg = General.LoadGameConfiguration(General.Configs[config.SelectedIndex].Filename);
				if(newcfg == null) return;
				
				// Check if the config uses a different IO interface
				if(newcfg.ReadSetting("formatinterface", "") != General.Map.Config.FormatInterface)
				{
					// Warn the user about IO interface change
					if(General.ShowWarningMessage("The game configuration you selected uses a different file format than your current map. Because your map was not designed for this format it may cause the map to work incorrectly in the game. Do you want to continue?", MessageBoxButtons.YesNo, MessageBoxDefaultButton.Button2) == DialogResult.No)
					{
						// Reset to old configuration
						for(int i = 0; i < config.Items.Count; i++)
						{
							// Is this configuration the old config?
							if(string.Compare(General.Configs[i].Filename, options.ConfigFile, true) == 0)
							{
								// Select this item
								config.SelectedIndex = i;
							}
						}
						return;
					}
				}
			}
			
			// Apply changes
			options.ClearResources();
			options.ConfigFile = General.Configs[config.SelectedIndex].Filename;
			options.CurrentName = levelname.Text.Trim().ToUpper();
			options.CopyResources(datalocations.GetResources());

			// Hide window
			this.DialogResult = DialogResult.OK;
			this.Close();
		}

		// Cancel clicked
		private void cancel_Click(object sender, EventArgs e)
		{
			// Just hide window
			this.DialogResult = DialogResult.Cancel;
			this.Close();
		}

		// Game configuration chosen
		private void config_SelectedIndexChanged(object sender, EventArgs e)
		{
			ConfigurationInfo ci;
			
			// Anything selected?
			if(config.SelectedIndex > -1)
			{
				// Get the info
				ci = (ConfigurationInfo)config.SelectedItem;

				// No lump name in the name field?
				if(levelname.Text.Trim().Length == 0)
				{
					// Get default lump name from configuration
					levelname.Text = ci.DefaultLumpName;
				}
				
				// Show resources
				datalocations.FixedResourceLocationList(ci.Resources);
			}
		}

		// When keys are pressed in the level name field
		private void levelname_KeyPress(object sender, KeyPressEventArgs e)
		{
			string allowedchars = Lump.MAP_LUMP_NAME_CHARS + Lump.MAP_LUMP_NAME_CHARS.ToLowerInvariant() + "\b";

			// Check if key is not allowed
			if(allowedchars.IndexOf(e.KeyChar) == -1)
			{
				// Cancel this
				e.Handled = true;
			}
		}
	}
}