/*
 * Copyright 2000-2013 Vaadin Ltd.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package com.vaadin.sass.internal.tree;

import java.util.ArrayList;

import com.vaadin.sass.internal.ScssStylesheet;
import com.vaadin.sass.internal.util.StringUtil;

/**
 * A simple BlockNode where input text equals output. <b>Note : </b> ignores any
 * possible children so only use it when you are sure no child nodes will be
 * applied.
 * 
 * @author Sebastian Nyholm @ Vaadin Ltd
 * 
 */
public class SimpleNode extends Node implements IVariableNode {

    private String text;

    public SimpleNode(String text) {
        this.text = text;

    }

    @Override
    public String toString() {
        return text;
    }

    @Override
    public void replaceVariables(ArrayList<VariableNode> variables) {
        for (final VariableNode node : variables) {
            if (StringUtil.containsVariable(text, node.getName())) {
                text = StringUtil.replaceVariable(text, node.getName(), node
                        .getExpr().toString());
            }
        }
    }

    @Override
    public void traverse() {
        replaceVariables(ScssStylesheet.getVariables());
    }
}