package com.juick.api;

import com.juick.json.MessageSerializer;
import com.juick.server.PMQueries;
import com.juick.server.UserQueries;
import com.juick.util.UserUtils;
import org.springframework.jdbc.core.JdbcTemplate;
import rocks.xmpp.addr.Jid;
import rocks.xmpp.core.session.XmppSession;
import rocks.xmpp.core.stanza.model.Message;

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, XmppSession xmpp, int vuid)
            throws ServletException, IOException {
        String uname = request.getParameter("uname");
        int uid = 0;
        if (UserUtils.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.setFrom(Jid.of("juick@juick.com"));
            msg.setTo(Jid.of(String.format("%d@push.juick.com", uid)));
            com.juick.Message jmsg = new com.juick.Message();
            jmsg.setUser(UserQueries.getUserByUID(sql, vuid).get());
            jmsg.setText(body);
            msg.addExtension(jmsg);
            xmpp.send(msg);

            msg.setTo(Jid.of(String.format("%d@ws.juick.com", uid)));
            xmpp.send(msg);

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

            List<String> jids = UserQueries.getJIDsbyUID(sql, uid);
            for (String jid: jids) {
                Message mm = new Message();
                mm.setTo(Jid.of(jid));
                mm.setType(Message.Type.CHAT);
                if (PMQueries.havePMinRoster(sql, vuid, jid)) {
                    mm.setFrom(Jid.of(jmsg.getUser().getName(), "juick.com", "Juick"));
                    mm.setBody(body);
                } else {
                    mm.setFrom(Jid.of("juick", "juick.com", "Juick"));
                    mm.setBody("Private message from @" + jmsg.getUser().getName() + ":\n" + body);
                }
                xmpp.send(mm);
            }

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