/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2016, Red Hat, Inc., and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.jboss.as.cli.parsing.operation;

import org.jboss.as.cli.CommandFormatException;
import org.jboss.as.cli.parsing.CharacterHandler;
import org.jboss.as.cli.parsing.DefaultParsingState;
import org.jboss.as.cli.parsing.EnterStateCharacterHandler;
import org.jboss.as.cli.parsing.ExpressionBaseState;
import org.jboss.as.cli.parsing.GlobalCharacterHandlers;
import org.jboss.as.cli.parsing.ParsingContext;
import org.jboss.as.cli.parsing.WordCharacterHandler;


/**
 *
 * @author Alexey Loubyansky
 */
public class PropertyState extends ExpressionBaseState {

    public static final PropertyState INSTANCE = new PropertyState();
    public static final String ID = "PROP";

    PropertyState() {
        this(PropertyValueState.INSTANCE);
    }

    PropertyState(PropertyValueState valueState) {
        this(',', valueState, ')');
    }

    PropertyState(char propSeparator, char... listEnd) {
        this(propSeparator, new PropertyValueState(propSeparator, listEnd), listEnd);
    }

    PropertyState(char propSeparator, PropertyValueState valueState, char...listEnd) {
        super(ID);
        setIgnoreWhitespaces(true);
        setEnterHandler(new CharacterHandler(){
            @Override
            public void handle(ParsingContext ctx) throws CommandFormatException {
                WordCharacterHandler.IGNORE_LB_ESCAPE_OFF.handle(ctx);
            }});
        for(int i = 0; i < listEnd.length; ++i) {
            putHandler(listEnd[i], GlobalCharacterHandlers.LEAVE_STATE_HANDLER);
        }
        enterState('=', new NameValueSeparatorState(valueState));
        // This is required to accept property without a value.
        putHandler(propSeparator, GlobalCharacterHandlers.LEAVE_STATE_HANDLER);
        setDefaultHandler(WordCharacterHandler.IGNORE_LB_ESCAPE_OFF);
        setReturnHandler(GlobalCharacterHandlers.LEAVE_STATE_HANDLER);
    }

    private static class NameValueSeparatorState extends DefaultParsingState {
        NameValueSeparatorState(PropertyValueState valueState) {
            super("NAME_VALUE_SEPARATOR");
            setDefaultHandler(new EnterStateCharacterHandler(valueState));
            setReturnHandler(GlobalCharacterHandlers.LEAVE_STATE_HANDLER);
            setIgnoreWhitespaces(true);
        }
    };
}
