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

import net.sourceforge.pain.*;
import net.sourceforge.pain.data.prototype.*;
import net.sourceforge.pain.logic.event.console.*;
import net.sourceforge.pain.logic.fn.*;
import net.sourceforge.pain.network.console.*;

import java.util.*;

/**
 * PAiN  Date: 05.06.2003  Time: 1:40:02
 */
public final class BC_Use extends BuilderCommand {

	public void processBuilderCommand(BuilderShell p, String args) throws Exception {
		if (p.activeCommand == null) {
			if (args != null && args.length() > 0) {
				String params[] = new String[2];
				ConsoleInputEvent.parseCommand(args, params);
				params[0] = params[0].toLowerCase();
				if ("vnum".equals(params[0])) {
					switchToVnum(p, params[1]);
				} else if ("role".equals(params[0])) {
					switchToRole(p, params[1]);
				} else if (params[1] == null) {
					switchToProtoInList(p, params[0]);
				} else {
					showUsage(p);
				}
			} else if (p.builder.getEditedRole() == null) {
				showUsage(p);
			} else { //do nothing
				return;
			}
		} else {
			MessageOutFn.outln(p.console, "not implemented not implemented!\n");
			p.setActiveCommand(null);
		}
	}

	private void switchToProtoInList(BuilderShell p, String num) {
		if (num == null) {
			showUsage(p);
		}
		try {
			int n = Integer.parseInt(num);
			java.util.List prototypes = p.builder.getEditedPrototypesList();
			if (n < 0 || n >= prototypes.size()) {
				MessageOutFn.outln(p.console, "No such element in edit list:" + n);
			} else {
				p.builder.setEditedRole((PrototypeInfo) prototypes.get(n));
				MessageOutFn.outln(p.console, "edited prototype changed to " + n + " in list");
			}
		} catch (NumberFormatException e) {
			showUsage(p);
		}

	}

	private void switchToRole(BuilderShell p, String roleName) {
		if (roleName == null) {
			showUsage(p);
		}
		Prototype editedRole = p.builder.getEditedRole();
		if (editedRole == null) {
			MessageOutFn.outln(p.console, "Active prototype not found");
			return;
		}

		Class clazz = null;
		try {
			clazz = Class.forName("net.sourceforge.pain.data.prototype." + roleName);
		} catch (ClassNotFoundException e) {
		}
		Prototype prot;
		if (clazz == null || (prot = (Prototype) editedRole.getRole(clazz)) == null) {
			MessageOutFn.outln(p.console, "No such role:" + roleName);
		} else {
			p.builder.setEditedRole(prot);
			MessageOutFn.outln(p.console, "Edited role setted to:" + roleName);
		}


	}

	private void switchToVnum(BuilderShell p, String vnum) {
		if (vnum == null) {
			showUsage(p);
		}
		PrototypeInfo pi = Core.getWorld().getPrototypesRegistry().getPrototypeByVnum(vnum);
		if (pi == null) {
			MessageOutFn.outln(p.console, "No prototype found with vnum: '" + vnum + "'");
//			Set set = Core.getWorld().getPrototypesRegistry().getPrototypesMap().keySet();
//			for (Iterator it = set.iterator(); it.hasNext();) {
//				Object key = it.next();
//				MessageOutFn.outln(p.console, "'" + key + "' " + key.getClass().getLogin());
//			}
		} else {
			List prototypes = p.builder.getEditedPrototypesList();
			if (!prototypes.contains(pi)) {
				MessageOutFn.outln(p.console, "Adding prototype to edit list, vnum:" + vnum);
				prototypes.add(pi);
			}
			p.builder.setEditedRole(pi);
			MessageOutFn.outln(p.console, "Edited prototype changed to prototype with vnum:" + vnum);
		}
	}

	private void showUsage(BuilderShell p) {
		MessageOutFn.outln(p.console, "Use:Command syntax: \n\t1) vnum <VNUM> \n\t2) role <ROLE_NAME> \n\t3) <NUM>  - number of prototype in list \n\t4) <no params> - nothing \n");
	}

	public void showHelp(Console console) {
		MessageOutFn.outln(console, "Builder command USE changes the edited prototype");
		MessageOutFn.outln(console, "Usage: use vnum <VNUM> - changes edited prototype to VNUM and adds it to edited prototypes list");
		MessageOutFn.outln(console, "Usage: use role <ROLE_NAME> - changes the edited role of current prototype");
		MessageOutFn.outln(console, "Usage: use <NUM> - changes the edited edited prototype to prototype with  NUM index in the edited prototypes list");
	}

}