/*
 * 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.xmpp.StanzaChild;
import com.juick.xmpp.utils.XmlUtils;
import org.apache.commons.lang3.StringUtils;
import org.apache.commons.text.StringEscapeUtils;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;

import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.TimeZone;
/**
 *
 * @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";
    private SimpleDateFormat df;
    public JuickMessage() {
        df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        df.setTimeZone(TimeZone.getTimeZone("UTC"));
    }

    @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;
        }
        jmsg.setTimestamp(df.parse(parser.getAttributeValue(null, "ts")).toInstant());
        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 ret = new StringBuilder("<").append(TagName).append(" xmlns=\"").append(XMLNS).append("\"");
        if (getMid() > 0) {
            ret.append(" mid=\"").append(getMid()).append("\"");
        }
        if (getRid() > 0) {
            ret.append(" rid=\"").append(getRid()).append("\"");
        }
        if (getReplyto() > 0) {
            ret.append(" replyto=\"").append(getReplyto()).append("\"");
        }
        ret.append(" privacy=\"").append(getPrivacy()).append("\"");
        if (FriendsOnly) {
            ret.append(" friendsonly=\"1\"");
        }
        if (ReadOnly) {
            ret.append(" readonly=\"1\"");
        }
        if (getTimestamp() != null) {
            ret.append(" ts=\"").append(df.format(Date.from(getTimestamp()))).append("\"");
        }
        if (getAttachmentType() != null) {
            ret.append(" attach=\"").append(getAttachmentType()).append("\"");
        }
        ret.append(">");
        if (getUser() != null) {
            ret.append(JuickUser.toString(getUser()));
        }
        if (getText() != null) {
            ret.append("<body>").append(StringEscapeUtils.escapeXml10(StringUtils.defaultString(getText()))).append("</body>");
        }
        for (Tag Tag : getTags()) {
            ret.append("<tag>").append(StringEscapeUtils.escapeXml10(Tag.getName())).append("</tag>");
        }
        ret.append("</").append(TagName).append(">");
        return ret.toString();
    }
    @Override
    public boolean equals(Object obj) {
        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 instanceof JuickMessage)) {
            throw new ClassCastException();
        }
        JuickMessage jmsg = (JuickMessage) obj;
        if (this.getMid() != jmsg.getMid()) {
            if (this.getMid() > jmsg.getMid()) {
                return -1;
            } else {
                return 1;
            }
        }
        if (this.getRid() != jmsg.getRid()) {
            if (this.getRid() < jmsg.getRid()) {
                return -1;
            } else {
                return 1;
            }
        }
        return 0;
    }
}