/*******************************************************************************
 *
 * Space Trader for Windows 2.00
 *
 * Copyright (C) 2005 Jay French, All Rights Reserved
 *
 * Additional coding by David Pierron
 * Original coding by Pieter Spronck, Sam Anderson, Samuel Goldstein, Matt Lee
 *
 * 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 2 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.
 *
 * If you'd like a copy of the GNU General Public License, go to
 * http://www.gnu.org/copyleft/gpl.html.
 *
 * You can contact the author at spacetrader@frenchfryz.com
 *
 ******************************************************************************/
using System;
using System.Collections;

namespace Fryz.Apps.SpaceTrader
{
	public class CrewMember : STSerializableObject
	{
		#region Member Declarations

		private CrewMemberId	_id;
		private int[]					_skills				= new int[4];
		private StarSystemId	_curSystemId	= StarSystemId.NA;

		#endregion

		#region Methods

		public CrewMember(CrewMemberId id, int pilot, int fighter, int trader, int engineer, StarSystemId curSystemId)
		{
			_id						= id;
			Pilot					= pilot;
			Fighter				= fighter;
			Trader				= trader;
			Engineer			= engineer;
			_curSystemId	= curSystemId;
		}

		public CrewMember(CrewMember baseCrewMember)
		{
			_id						= baseCrewMember.Id;
			Pilot					= baseCrewMember.Pilot;
			Fighter				= baseCrewMember.Fighter;
			Trader				= baseCrewMember.Trader;
			Engineer			= baseCrewMember.Engineer;
			_curSystemId	= baseCrewMember.CurrentSystemId;
		}

		public CrewMember(Hashtable hash): base(hash)
		{
			_id						= (CrewMemberId)GetValueFromHash(hash, "_id");
			_skills				= (int[])GetValueFromHash(hash, "_skills", _skills);
			_curSystemId	= (StarSystemId)GetValueFromHash(hash, "_curSystemId", _curSystemId);
		}

		private void ChangeRandomSkill(int amount)
		{
			ArrayList	skillIdList	= new ArrayList(4);
			for (int i = 0; i < Skills.Length; i++)
			{
				if (Skills[i] + amount > 0 && Skills[i] + amount < Consts.MaxSkill)
					skillIdList.Add(i);
			}

			if (skillIdList.Count > 0)
			{
				int	skill	= (int)skillIdList[Functions.GetRandom(skillIdList.Count)];

				int	curTrader	= Game.CurrentGame.Commander.Ship.Trader;
				Skills[skill]	+= amount;
				if (Game.CurrentGame.Commander.Ship.Trader != curTrader)
					Game.CurrentGame.RecalculateBuyPrices(Game.CurrentGame.Commander.CurrentSystem);
			}
		}

		// *************************************************************************
		// Increase one of the skills.
		// *************************************************************************
		public void IncreaseRandomSkill()
		{
			ChangeRandomSkill(1);
		}

		// *************************************************************************
		// NthLowest Skill. Returns skill with the nth lowest score
		// (i.e., 2 is the second worst skill). If there is a tie, it will return
		// in the order of Pilot, Fighter, Trader, Engineer.
		// JAF - rewrote this to be more efficient.
		// *************************************************************************
		public int NthLowestSkill(int n)
		{
			int[]	skillIds	= new int[] { 0, 1, 2, 3 };

			for (int j = 0; j < 3; j++)
			{
				for (int i = 0; i < 3 - j; i++)
				{
					if (Skills[skillIds[i]] > Skills[skillIds[i + 1]])
					{
						int	temp				= skillIds[i];
						skillIds[i]			= skillIds[i + 1];
						skillIds[i + 1]	= temp;
					}
				}
			}

			return skillIds[n - 1];
		}

		public override Hashtable Serialize()
		{
			Hashtable	hash	= base.Serialize();

			hash.Add("_id",						(int)_id);
			hash.Add("_skills",				_skills);
			hash.Add("_curSystemId",	(int)_curSystemId);

			return hash;
		}

		// *************************************************************************
		// Randomly tweak the skills.
		// *************************************************************************
		public void TonicTweakRandomSkill()
		{
			int[]	oldSkills	= (int[])Skills.Clone();

			if (Game.CurrentGame.Difficulty < Difficulty.Hard)
			{
				// add one to a random skill, subtract one from a random skill
				while (Skills[0] == oldSkills[0] && Skills[1] == oldSkills[1] &&
					Skills[2] == oldSkills[2] && Skills[3] == oldSkills[3])
				{
					ChangeRandomSkill(1);
					ChangeRandomSkill(-1);
				}
			}
			else
			{
				// add one to two random skills, subtract three from one random skill
				ChangeRandomSkill(1);
				ChangeRandomSkill(1);
				ChangeRandomSkill(-3);
			}
		}

		public override string ToString()
		{
			return Name;
		}

		#endregion

		#region Properties

		public StarSystem CurrentSystem
		{
			get
			{
				return _curSystemId == StarSystemId.NA ? null : Game.CurrentGame.Universe[(int)_curSystemId];
			}
			set
			{
				_curSystemId	= value.Id;
			}
		}

		public StarSystemId CurrentSystemId
		{
			get
			{
				return _curSystemId;
			}
			set
			{
				_curSystemId	= value;
			}
		}

		public int Engineer
		{
			get
			{
				return _skills[(int)SkillType.Engineer];
			}
			set
			{
				_skills[(int)SkillType.Engineer]	= value;
			}
		}

		public int Fighter
		{
			get
			{
				return _skills[(int)SkillType.Fighter];
			}
			set
			{
				_skills[(int)SkillType.Fighter]	= value;
			}
		}

		public CrewMemberId	Id
		{
			get
			{
				return _id;
			}
		}

		public string Name
		{
			get
			{
				return Strings.CrewMemberNames[(int)_id];
			}
		}

		public int Pilot
		{
			get
			{
				return _skills[(int)SkillType.Pilot];
			}
			set
			{
				_skills[(int)SkillType.Pilot]	= value;
			}
		}

		public int Rate
		{
			get
			{
				return Consts.SpecialCrewMemberIds.Contains(Id) || Id == CrewMemberId.Zeethibal ? 0 :
					(Pilot + Fighter + Trader + Engineer) * 3;
			}
		}

		public int[] Skills
		{
			get
			{
				return _skills;
			}
		}

		public int Trader
		{
			get
			{
				return _skills[(int)SkillType.Trader];
			}
			set
			{
				_skills[(int)SkillType.Trader]	= value;
			}
		}

		#endregion
	}
}