package com.juick.api;

import com.juick.json.MessageSerializer;
import com.juick.server.PMQueries;
import com.juick.server.UserQueries;
import com.juick.xmpp.JID;
import com.juick.xmpp.Message;
import com.juick.xmpp.Stream;
import com.juick.xmpp.extensions.JuickMessage;
import org.springframework.jdbc.core.JdbcTemplate;

import java.io.IOException;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author ugnich
 */
public class PM {

    JdbcTemplate sql;

    MessageSerializer messageSerializer = new MessageSerializer();

    public PM(JdbcTemplate sql) {
        this.sql = sql;
    }

    public void doGetPM(HttpServletRequest request, 
            HttpServletResponse response, int vuid) 
            throws ServletException, IOException {
        String uname = request.getParameter("uname");
        int uid = 0;
        if (uname != null && uname.matches("^[a-zA-Z0-9\\-]{2,16}$")) {
            uid = UserQueries.getUIDbyName(sql, uname);
        }

        if (uid == 0) {
            response.sendError(400);
            return;
        }

        List<com.juick.Message> msgs = PMQueries.getPMMessages(sql, vuid, uid);
        if (msgs != null && !msgs.isEmpty()) {
            String json = messageSerializer.serializeList(msgs);
            Main.replyJSON(request, response, json);
        } else {
            response.sendError(404);
        }
    }

    public void doPostPM(HttpServletRequest request, 
            HttpServletResponse response, Stream xmpp, int vuid) 
            throws ServletException, IOException {
        String uname = request.getParameter("uname");
        int uid = 0;
        if (UserQueries.checkUserNameValid(uname)) {
            uid = UserQueries.getUIDbyName(sql, uname);
        }

        String body = request.getParameter("body");
        if (uid == 0 || body == null || body.length() < 1 || body.length() > 10240) {
            response.sendError(400);
            return;
        }

        if (UserQueries.isInBLAny(sql, uid, vuid)) {
            response.sendError(403);
            return;
        }

        if (PMQueries.createPM(sql, vuid, uid, body)) {
            Message msg = new Message();
            msg.from = new JID("juick", "juick.com", null);
            msg.to = new JID(Integer.toString(uid), "push.juick.com", null);
            JuickMessage jmsg = new JuickMessage();
            jmsg.setUser(UserQueries.getUserByUID(sql, vuid));
            jmsg.setText(body);
            msg.childs.add(jmsg);
            xmpp.send(msg);

            msg.to.Host = "ws.juick.com";
            xmpp.send(msg);

            Main.replyJSON(request, response, messageSerializer.serialize(jmsg).toString());

            String jid = UserQueries.getJIDbyUID(sql, uid);
            if (jid != null) {
                Message mm = new Message();
                mm.to = new JID(jid);
                mm.type = Message.Type.chat;
                if (PMQueries.havePMinRoster(sql, vuid, jid)) {
                    mm.from = new JID(jmsg.getUser().getUName(), "juick.com", "Juick");
                    mm.body = body;
                } else {
                    mm.from = new JID("juick", "juick.com", "Juick");
                    mm.body = "Private message from @" + jmsg.getUser().getUName() + ":\n" + body;
                }
                xmpp.send(mm);
            }

        } else {
            response.sendError(500);
        }
    }
}