package org.jsoup.nodes;

import java.io.IOException;

/**
 A data node, for contents of style, script tags etc, where contents should not show in text().

 @author Jonathan Hedley, jonathan@hedley.net */
public class DataNode extends Node{
    private static final String DATA_KEY = "data";

    /**
     Create a new DataNode.
     @param data data contents
     @param baseUri base URI
     */
    public DataNode(String data, String baseUri) {
        super(baseUri);
        attributes.put(DATA_KEY, data);
    }

    public String nodeName() {
        return "#data";
    }

    /**
     Get the data contents of this node. Will be unescaped and with original new lines, space etc.
     @return data
     */
    public String getWholeData() {
        return attributes.get(DATA_KEY);
    }

    /**
     * Set the data contents of this node.
     * @param data unencoded data
     * @return this node, for chaining
     */
    public DataNode setWholeData(String data) {
        attributes.put(DATA_KEY, data);
        return this;
    }

	void outerHtmlHead(Appendable accum, int depth, Document.OutputSettings out) throws IOException {
        accum.append(getWholeData()); // data is not escaped in return from data nodes, so " in script, style is plain
    }

	void outerHtmlTail(Appendable accum, int depth, Document.OutputSettings out) {}

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

    /**
     Create a new DataNode from HTML encoded data.
     @param encodedData encoded data
     @param baseUri bass URI
     @return new DataNode
     */
    public static DataNode createFromEncoded(String encodedData, String baseUri) {
        String data = Entities.unescape(encodedData);
        return new DataNode(data, baseUri);
    }
}
