/*
 * Juick
 * Copyright (C) 2008-2011, Ugnich Anton
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.juick.xmpp.extensions;

import com.juick.Tag;
import com.juick.util.DateFormattersHolder;
import com.juick.xmpp.StanzaChild;
import com.juick.xmpp.utils.XmlUtils;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;

import java.io.IOException;
import java.text.ParseException;

/**
 * @author Ugnich Anton
 */
public class JuickMessage extends com.juick.Message implements StanzaChild {
    public final static String XMLNS = "http://juick.com/message";
    public final static String TagName = "juick";

    public JuickMessage() {
    }

    public JuickMessage(com.juick.Message msg) {
        super(msg);
    }

    @Override
    public String getXMLNS() {
        return XMLNS;
    }

    @Override
    public JuickMessage parse(XmlPullParser parser) throws XmlPullParserException, IOException, ParseException {
        JuickMessage jmsg = new JuickMessage();

        final String sMID = parser.getAttributeValue(null, "mid");
        if (sMID != null) {
            jmsg.setMid(Integer.parseInt(sMID));
        }
        final String sRID = parser.getAttributeValue(null, "rid");
        if (sRID != null) {
            jmsg.setRid(Integer.parseInt(sRID));
        }
        final String sReplyTo = parser.getAttributeValue(null, "replyto");
        if (sReplyTo != null) {
            jmsg.setReplyto(Integer.parseInt(sReplyTo));
        }
        final String sPrivacy = parser.getAttributeValue(null, "privacy");
        if (sPrivacy != null) {
            jmsg.setPrivacy(Integer.parseInt(sPrivacy));
        }
        final String sFriendsOnly = parser.getAttributeValue(null, "friendsonly");
        if (sFriendsOnly != null) {
            jmsg.FriendsOnly = true;
        }
        final String sReadOnly = parser.getAttributeValue(null, "readonly");
        if (sReadOnly != null) {
            jmsg.ReadOnly = true;
        }
        String ts = parser.getAttributeValue(null, "ts");
        if (ts != null) {
            jmsg.setDate(DateFormattersHolder.getMessageFormatterInstance().parse(ts));
        }
        jmsg.setAttachmentType(parser.getAttributeValue(null, "attach"));

        while (parser.next() == XmlPullParser.START_TAG) {
            final String tag = parser.getName();
            final String xmlns = parser.getNamespace();
            if (tag.equals("body")) {
                jmsg.setText(XmlUtils.getTagText(parser));
            } else if (tag.equals(JuickUser.TagName) && xmlns != null && xmlns.equals(JuickUser.XMLNS)) {
                jmsg.setUser(new JuickUser().parse(parser));
            } else if (tag.equals("tag")) {
                jmsg.getTags().add(new Tag(XmlUtils.getTagText(parser)));
            } else {
                XmlUtils.skip(parser);
            }
        }
        return jmsg;
    }

    @Override
    public String toString() {
        StringBuilder builder = new StringBuilder();

        builder.append("<").append(TagName).append(" xmlns=\"").append(XMLNS).append("\"");

        if (getMid() > 0)
            builder.append(" mid=\"").append(getMid()).append("\"");

        if (getRid() > 0)
            builder.append(" rid=\"").append(getRid()).append("\"");

        if (getReplyto() > 0)
            builder.append(" replyto=\"").append(getReplyto()).append("\"");

        builder.append(" privacy=\"").append(getPrivacy()).append("\"");

        if (FriendsOnly)
            builder.append(" friendsonly=\"1\"");

        if (ReadOnly)
            builder.append(" readonly=\"1\"");

        if (getDate() != null)
            builder.append(" ts=\"")
                    .append(DateFormattersHolder.getMessageFormatterInstance().format(getDate()))
                    .append("\"");

        if (getAttachmentType() != null)
            builder.append(" attach=\"").append(getAttachmentType()).append("\"");

        builder.append(">");

        if (getUser() != null)
            builder.append(JuickUser.toString(getUser()));

        if (getText() != null)
            builder.append("<body>").append(XmlUtils.escape(getText())).append("</body>");

        for (com.juick.Tag tag : getTags())
            builder.append("<tag>").append(XmlUtils.escape(tag.getName())).append("</tag>");

        builder.append("</").append(TagName).append(">");

        return builder.toString();
    }

    @Override
    public boolean equals(Object obj) {
        if (obj == this)
            return true;

        if (!(obj instanceof JuickMessage))
            return false;

        JuickMessage jmsg = (JuickMessage) obj;
        return (this.getMid() == jmsg.getMid() && this.getRid() == jmsg.getRid());
    }

    @Override
    public int compareTo(Object obj) throws ClassCastException {
        if (obj == this)
            return 0;

        if (!(obj instanceof JuickMessage))
            throw new ClassCastException();

        JuickMessage jmsg = (JuickMessage) obj;
        int cmp = Integer.compare(jmsg.getMid(), getMid());
        if (cmp == 0)
            cmp = Integer.compare(getRid(), jmsg.getRid());

        return cmp;
    }
}