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

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

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);
        if (mobile.isAffected(AffectType.AFFECT_IMMOBILE)) {
            MessageOutFn.outln(console, "You can't move!");
            return;
        }
        final String directionStr = command.tag;
        int dir = Utils.exitCharToDir(directionStr.charAt(0));
        try {
            boolean affectMoves = mobile.getMoves() > 5 ;//hack, no refreshing timer still :(
            MessageOutFn.outSpace(mobile, "$n leaves $T", player, LangUtil.directionName(dir));
            MoveFn.move(mobile, dir, affectMoves);
            ShowFn.showSpace(player.asReceptive(), player.asLocated().getLocation());
            MessageOutFn.outSpace(mobile, "$n arrives", player);
        } catch (LogicException e) {
            switch (e.errorCode) {
                case MoveFn.ERR_MOVE_NO_EXITS_FOUND:
                    MessageOutFn.outln(console, "Alas, you cannot go that way!");
                    break;
                case MoveFn.ERR_MOVE_NOT_ENOUGH_MOVE_POINTS:
                    MessageOutFn.outln(console, "You are too exhausted.");
                    break;
                default:
                    MessageOutFn.outln(console, "You failed.");
            }
        }
    }

    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);
    }

}