/**********************************************************************

 *
 * Title:        temporary_structure.script
 * Description:  script that handles the temporary player structure

 **********************************************************************/


/***** INCLUDES ********************************************************/
include library.utils;
include library.planetary_map;

/***** CONSTANTS *******************************************************/

const string_id SID_LOCATION_REGISTRATION_CANCELLED = new string_id("travel", "location_registration_cancelled");

/***** TRIGGERS ********************************************************/
trigger OnLostItem(obj_id destContainer, obj_id transferer, obj_id item)
{
	if ( utils.isNestedWithin(destContainer, self) )
		return SCRIPT_CONTINUE;
		
	removeRegistrant(self, item);
 	return SCRIPT_CONTINUE;
}

trigger OnTriggerVolumeExited( string volName, obj_id who )
{
 	if ( who == self )
 		return SCRIPT_CONTINUE;

 	if ( volName.equals("camp_" + self) )
		removeRegistrant(self, who);

 	return SCRIPT_CONTINUE;
}


/***** MESSAGEHANDLERS *************************************************/
messageHandler removeRegistrant()
{
	obj_id objItem = params.getObjId("objItem");
	removeRegistrant(self, objItem);
	return SCRIPT_CONTINUE;
}

/***** COMMANDHANDLERS *************************************************/


/***** FUNCTIONS **************************************************/
void removeRegistrant(obj_id self, obj_id item)
{
	if ( !isIdValid(self) || !isIdValid(item) || !isPlayer(item) )
		return;
		
	resizeable obj_id[] registrants = utils.getResizeableObjIdBatchScriptVar(self, "registrants");
	if ( registrants != null && registrants.length > 0 )
	{
		int idx = utils.getElementPositionInArray(registrants, item);
		if ( idx > -1 )
		{
			registrants = utils.removeElementAt(registrants, idx);
			if ( registrants == null || registrants.length == 0 )
			{
				utils.removeBatchScriptVar(self, "registrants");

				if ( planetary_map.updateFacilityActive(self, false) )
					detachScript(self, "planet_map.active_registered");
			}
			else
			{
				utils.setBatchScriptVar(self, "registrants", registrants);
			}

			if ( item.isLoaded() )
			{
				sendSystemMessage(item, SID_LOCATION_REGISTRATION_CANCELLED);
				utils.removeScriptVar(item, "registerWithLocation");
			}

			return;
		}
	}
}