package net.sourceforge.pain.logic.event.console.command;

import net.sourceforge.pain.logic.event.console.*;
import net.sourceforge.pain.logic.fn.*;
import net.sourceforge.pain.logic.fn.util.*;
import net.sourceforge.pain.data.type.*;

public final class Move extends CommandHandler {

	public boolean isAccessible() {
		return super.isAccessible() && player.is(Mobile.class);
	}

	public void processNotAccessible() {
		MessageOutFn.outln(console, "move? you do not know how to do it");
	}

	public void processCommand() throws Exception {
		Mobile mobile = (Mobile) player.getRole(Mobile.class);
		int currentMoves = mobile.getMoves();
		Located located = mobile.asLocated();
		Space space = located.getLocation();
		//out("ok move:"+console.getActiveCommand().getTag());
		final String directionStr = command.tag;
		int dir = Utils.exitCharToDir(directionStr.charAt(0));
		LinkedSpace link = (LinkedSpace) space.getRole(LinkedSpace.class);
		Exit ex = (link == null) ? null : link.getExit(dir);
		Space targetSpace = (ex == null) ? null : ex.getTargetSpace();
		if (targetSpace == null) {
			MessageOutFn.outln(console, "Alas, you cannot go that way!");
		} else {
			final int moveCost = ex.getMoveCost();
			if (currentMoves < moveCost) {
//TODO:refreshing timer
// 			MessageOutFn.outln(console, "You are too exhausted.");
//			return;
				currentMoves = mobile.getMaxMoves();
			}

			mobile.setMoves(currentMoves - moveCost);
			MessageOutFn.outSpace(located, "$n leaves $T", player, LangUtil.directionName(dir));
			//	Log.debug("setting location from:"+space.getVnum()+" to :"+targetSpace.getVnum());
			RelocateFn.relocate(located, targetSpace);
			ShowFn.showSpace(player.asReceptive(), targetSpace);
			MessageOutFn.outSpace(located, "$n arrives", player);
		}
	}

	public void showHelp() {
		final String dir;
		switch (command.tag.charAt(0)) {
			case 'N':
				dir = "north";
				break;
			case 'E':
				dir = "east";
				break;
			case 'S':
				dir = "south";
				break;
			case 'W':
				dir = "west";
				break;
			case 'U':
				dir = "up";
				break;
			case 'D':
				dir = "down";
				break;
			default:
				throw new RuntimeException("BUG! wrong direction!:" + command.tag);
		}
		MessageOutFn.outln(console, command.name + ": command allows you to move " + dir);
	}

}