package org.jivesoftware.smackx.packet;

import org.jivesoftware.smack.packet.PacketExtension;
import org.jivesoftware.smackx.jingle.media.ContentInfo;

/**
 * Jingle content info
 *
 * @author Alvaro Saurin <alvaro.saurin@gmail.com>
 */
public class JingleContentInfo implements PacketExtension {

    protected ContentInfo mediaInfoElement;

    private String namespace;

    /**
     * Empty constructor, with no jmf info.
     */
    public JingleContentInfo() {
        this(null);
    }

    /**
     * Constructor with a jmf info
     *
     * @param mediaInfoElement MediaInfo element
     */
    public JingleContentInfo(final ContentInfo mediaInfoElement) {
        super();
        this.mediaInfoElement = mediaInfoElement;
    }

    /**
     * Get the jmf info element.
     *
     * @return the mediaInfoElement
     */
    public ContentInfo getMediaInfo() {
        return mediaInfoElement;
    }

    /**
     * Get the element name
     */
    public String getElementName() {
        // Media info is supposed to be just a single-word command...
        return getMediaInfo().toString();
    }

    /**
     * Set the name space.
     *
     * @param ns the namespace
     */
    protected void setNamespace(final String ns) {
        namespace = ns;
    }

    /**
     * Get the publilc namespace
     */
    public String getNamespace() {
        return namespace;
    }

    public String toXML() {
        StringBuilder buf = new StringBuilder();
        buf.append("<").append(getElementName()).append(" xmlns=\"");
        buf.append(getNamespace()).append("\" ");
        buf.append("/>");
        return buf.toString();
    }

    /**
     * Transport part of a Jingle packet.
     */
    public static class Audio extends JingleContentInfo {

        public static final String NAMESPACE = "http://jabber.org/protocol/jingle/info/audio";

        public Audio(final ContentInfo mi) {
            super(mi);
            setNamespace(NAMESPACE);
        }

        public String getNamespace() {
            return NAMESPACE;
        }

        // Subclasses: specialize the Audio jmf info...

        /**
         * Busy jmf info.
         */
        public static class Busy extends Audio {
            public Busy() {
                super(ContentInfo.Audio.BUSY);
            }
        }

        /**
         * Hold jmf info.
         */
        public static class Hold extends Audio {
            public Hold() {
                super(ContentInfo.Audio.HOLD);
            }
        }

        /**
         * Mute jmf info.
         */
        public static class Mute extends Audio {
            public Mute() {
                super(ContentInfo.Audio.MUTE);
            }
        }

        /**
         * Queued jmf info.
         */
        public static class Queued extends Audio {
            public Queued() {
                super(ContentInfo.Audio.QUEUED);
            }
        }

        /**
         * Ringing jmf info.
         */
        public static class Ringing extends Audio {
            public Ringing() {
                super(ContentInfo.Audio.RINGING);
			}
		}
	}
}