#region Copyright & License Information
/*
 * Copyright 2007-2011 The OpenRA Developers (see AUTHORS)
 * This file is part of OpenRA, which is free software. It is made
 * available to you under the terms of the GNU General Public License
 * as published by the Free Software Foundation. For more information,
 * see COPYING.
 */
#endregion

using OpenRA.Traits;
using OpenRA.Widgets;
using OpenRA.Network;
using System;
using System.Drawing;
using System.Linq;

namespace OpenRA.Mods.RA.Widgets.Logic
{
	public class IngameObserverChromeLogic
	{
		Widget gameRoot;

		// WTF duplication
		[ObjectCreator.UseCtor]
		public IngameObserverChromeLogic(World world)
		{
			var r = Ui.Root;
			gameRoot = r.Get("OBSERVER_ROOT");
			var optionsBG = gameRoot.Get("INGAME_OPTIONS_BG");

			r.Get<ButtonWidget>("INGAME_OPTIONS_BUTTON").OnClick = () =>
			{
				optionsBG.Visible = !optionsBG.Visible;
				if (world.LobbyInfo.IsSinglePlayer)
					world.IssueOrder(Order.PauseGame(true));
			};

			optionsBG.Get<ButtonWidget>("DISCONNECT").OnClick = () =>
			{
				optionsBG.Visible = false;
				Game.Disconnect();
				Game.LoadShellMap();
				Ui.CloseWindow();
				Ui.OpenWindow("MAINMENU_BG");
			};

			optionsBG.Get<ButtonWidget>("SETTINGS").OnClick = () => Ui.OpenWindow("SETTINGS_MENU");
			optionsBG.Get<ButtonWidget>("MUSIC").OnClick = () => Ui.OpenWindow("MUSIC_MENU");
			optionsBG.Get<ButtonWidget>("RESUME").OnClick = () =>
			{
				optionsBG.Visible = false;
				if (world.LobbyInfo.IsSinglePlayer)
					world.IssueOrder(Order.PauseGame(false));
			};
			optionsBG.Get<ButtonWidget>("SURRENDER").IsVisible = () => false;

			Ui.Root.Get<ButtonWidget>("INGAME_STATS_BUTTON").OnClick = () => gameRoot.Get("OBSERVER_STATS").Visible ^= true;

			if (!world.IsShellmap)
			{
				var chatPanel = Game.LoadWidget(world, "CHAT_PANEL", Ui.Root, new WidgetArgs());
				gameRoot.AddChild(chatPanel);
			}

			var shroudSelector = Ui.Root.GetOrNull<DropDownButtonWidget>("SHROUD_SELECTOR");
			if (shroudSelector != null)
			{
				if (world.RenderedShroud == world.LocalShroud)
					shroudSelector.GetText = () =>  world.RenderedPlayer != null ? "{0}'s View".F(world.RenderedPlayer.PlayerName) : "Worldview";

				shroudSelector.OnMouseDown = _ =>
				{

					var options = world.Players.Where(p => !p.NonCombatant).Select(p => new DropDownOption
					{
						Title = "{0}'s View".F(p.PlayerName),
						IsSelected = () => world.RenderedPlayer == p,
						OnClick = () => { world.RenderedPlayer = p; world.RenderedShroud.Jank(); }
					}).ToList();
					options.Add(new DropDownOption
					{
						Title = "Worldview",
						IsSelected = () => world.RenderedPlayer == null,
						OnClick = () => { world.RenderedPlayer = null; world.RenderedShroud.Jank(); }
					});
					Func<DropDownOption, ScrollItemWidget, ScrollItemWidget> setupItem = (option, template) =>
					{
						var item = ScrollItemWidget.Setup(template, option.IsSelected, option.OnClick);
						item.Get<LabelWidget>("LABEL").GetText = () => option.Title;
						return item;
					};
					shroudSelector.ShowDropDown("LABEL_DROPDOWN_TEMPLATE", options.Count() * 30, options, setupItem);
				};
			}
		}

		class DropDownOption
		{
			public string Title;
			public Func<bool> IsSelected;
			public Action OnClick;
		}
	}
}