#region Copyright & License Information
/*
 * Copyright 2007,2009,2010 Chris Forbes, Robert Pepperell, Matthew Bowra-Dean, Paul Chote, Alli Witheford.
 * This file is part of OpenRA.
 * 
 *  OpenRA 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.
 * 
 *  OpenRA 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 OpenRA.  If not, see <http://www.gnu.org/licenses/>.
 */
#endregion

using System;
using OpenRA.Traits.Activities;

namespace OpenRA.Traits
{
	class RepairableInfo : ITraitInfo
	{
		public object Create(Actor self) { return new Repairable(self); }
	}

	class Repairable : IIssueOrder, IResolveOrder
	{
		IDisposable reservation;
		public Repairable(Actor self) { }

		public Order IssueOrder(Actor self, int2 xy, MouseInput mi, Actor underCursor)
		{
			if (mi.Button != MouseButton.Right) return null;
			if (underCursor == null) return null;

			if (underCursor.Info.Name == "fix"
				&& underCursor.Owner == self.Owner
				&& !Reservable.IsReserved(underCursor))
				return new Order("Enter", self, underCursor);

			return null;
		}

		public void ResolveOrder(Actor self, Order order)
		{
			if (reservation != null)
			{
				reservation.Dispose();
				reservation = null;
			}

			if (order.OrderString == "Enter")
			{
				if (Reservable.IsReserved(order.TargetActor))
					return;

				var res = order.TargetActor.traits.GetOrDefault<Reservable>();
				if (res != null) reservation = res.Reserve(self);

				self.CancelActivity();
				self.QueueActivity(new Move(((1 / 24f) * order.TargetActor.CenterLocation).ToInt2(), order.TargetActor));
				self.QueueActivity(new Rearm());
				self.QueueActivity(new Repair(true));
			}
		}
	}
}
