/*

traderAI.js

Priority-based AI for traders

Oolite
Copyright © 2004-2013 Giles C Williams and contributors

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.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301, USA.

*/

"use strict";

this.name = "Oolite Trader AI";
this.version = "1.79";

this.aiStarted = function() {
		var ai = new worldScripts["oolite-libPriorityAI"].AILib(this.ship);

		ai.setParameter("oolite_flag_sendsDistressCalls",true);

		/* Communications currently for debugging purposes. Need to either
		 * be removed or given a much bigger set of phrases to choose from
		 * before 1.79 */
		ai.setCommunication("oolite_selectedStation","Heading for [p1]");
		ai.setCommunication("oolite_selectedWitchspaceDestination","Prepare for witchspace jump to [p1]");
		ai.setCommunication("oolite_agreeingToDumpCargo","Take our cargo but please let us go!");


		ai.setPriorities([
				{
						condition: ai.conditionLosingCombat,
						truebranch: [
								{
										condition: ai.conditionPiratesCanBePaidOff,
										behaviour: ai.behaviourPayOffPirates,
										reconsider: 5
								},
								{
										behaviour: ai.behaviourFleeCombat,
										reconsider: 5
								}
						]
				},
				{ 
						condition: ai.conditionInCombat,
						configuration: ai.configurationAcquireCombatTarget,
						// not required to destroy target, just to get it to leave
						behaviour: ai.behaviourRepelCurrentTarget,
						reconsider: 5
				},
				{
						condition: ai.conditionCargoIsProfitableHere,
						// branch to head for station
						truebranch: [
								{
										condition: ai.conditionHasSelectedStation,
										truebranch: [
												{
														condition: ai.conditionSelectedStationNearby,
														configuration: ai.configurationSetSelectedStationForDocking,
														behaviour: ai.behaviourDockWithStation,
														reconsider: 30
												},
												{
														condition: ai.conditionSelectedStationNearMainPlanet,
														truebranch: [
																{
																		notcondition: ai.conditionMainPlanetNearby,
																		configuration: ai.configurationSetDestinationToMainPlanet,
																		behaviour: ai.behaviourApproachDestination,
																		reconsider: 30
																}
														]
												},
												// either the station isn't near the planet, or we are
												{
														configuration: ai.configurationSetDestinationToSelectedStation,
														behaviour: ai.behaviourApproachDestination,
														reconsider: 30
												}
										],
										falsebranch: [
												{
														configuration: ai.configurationSelectRandomTradeStation,
														behaviour: ai.behaviourReconsider
												}
										]
								}
						],
						// jump to another system if possible, sunskim if not
						falsebranch: [
								{
										condition: ai.conditionCanWitchspaceOut,
										configuration: ai.configurationSelectWitchspaceDestination,
										behaviour: ai.behaviourEnterWitchspace,
										reconsider: 20
								},
								{
										condition: ai.conditionReadyToSunskim,
										configuration: ai.configurationSetDestinationToSunskimEnd,
										behaviour: ai.behaviourSunskim,
										reconsider: 20
								},
								{
										condition: ai.conditionSunskimPossible,
										configuration: ai.configurationSetDestinationToSunskimStart,
										behaviour: ai.behaviourApproachDestination,
										reconsider: 30
								}
						]
				}, // end of cargoprofitable true/false branches
				{
						// if we're here, the cargo isn't profitable, and we can't
						// witchspace out or sunskim
						condition: ai.conditionInInterstellarSpace,
						configuration: ai.configurationSetDestinationToWitchpoint,
						// TODO: behaviour search for wormholes
						behaviour: ai.behaviourApproachDestination
				},
				{
						condition: ai.conditionFriendlyStationNearby,
						configuration: ai.configurationSetNearbyFriendlyStationForDocking,
						behaviour: ai.behaviourDockWithStation,
						reconsider: 30
				},
				{
						condition: ai.conditionFriendlyStationExists,
						configuration: ai.configurationSetDestinationToNearestFriendlyStation,
						behaviour: ai.behaviourApproachDestination,
						reconsider: 30
				},
				{
						// stuck and no friendly stations
						configuration: ai.configurationSetDestinationToWitchpoint,
						// TODO: behaviour search for wormholes
						behaviour: ai.behaviourApproachDestination,
						reconsider: 30
				}
		]);
}