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.*;

public final class Give extends CommandHandler {

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


	public void processCommand() throws Exception {
		if (commandParams == null || commandParams.length() == 0) {
			MessageOutFn.outln(console, "Give what to whom?");
			return;
		}
		String[] tokens = Utils.WHITESPACE_SPLIT_PATTERN.split(commandParams.toLowerCase());
		if (tokens.length == 1 || (tokens.length == 2 && "to".equals(tokens[1]))) {
			MessageOutFn.outln(console, "Give to whom?");
			return;
		}
		String objName = tokens[0];
		String targetName = tokens.length > 2 && "to".equals(tokens[1]) ? tokens[2] : tokens[1];

		// look for obj
		Equipped equipped = (Equipped) player.getRole(Equipped.class);
		final Located plocated = player.asLocated();
		Interactive iObj = SpaceFindFn.findByPrefix(plocated, equipped.getInventory(), objName);
		Physical physObj = iObj != null ? (Physical) iObj.getRole(Physical.class) : null;
		if (physObj == null) {
			if (iObj != null) {
				MessageOutFn.outln(console, "You failed.");
			} else {
				MessageOutFn.outln(console, "You do not have that item.");
			}
			return;
		}

		// look for target
		Interactive iTarget = SpaceFindFn.findByPrefix(plocated, targetName);
		Equipped eqTarget = iTarget != null ? (Equipped) iTarget.getRole(Equipped.class) : null;
		if (eqTarget == null) {
			if (iTarget != null) {
				MessageOutFn.outln(console, "You failed.");
			} else {
				MessageOutFn.outln(console, "They aren't here.");
			}
			return;
		}
		if (eqTarget.sameObjectAs(player)) {
			MessageOutFn.outln(console, "You failed.");
			return;
		}
		GiveFn.give(equipped, physObj, eqTarget);
	}

	public void showHelp() {
		MessageOutFn.outln(console, command.name + ": use this command to give items to other persons");
	}

}