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/*
 * 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.www;

import com.juick.server.PMQueries;
import com.juick.server.TagQueries;
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 com.mitchellbosecke.pebble.error.PebbleException;
import com.mitchellbosecke.pebble.template.PebbleTemplate;
import org.springframework.jdbc.core.JdbcTemplate;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 *
 * @author Ugnich Anton
 */
public class PM {
    private static final Logger logger = Logger.getLogger(PM.class.getName());

    protected void doGetInbox(JdbcTemplate sql, HttpServletRequest request, HttpServletResponse response, com.juick.User visitor) throws ServletException, IOException, PebbleException {

        String title = "PM: Inbox";
        List<com.juick.Message> msgs = PMQueries.getLastPMInbox(sql, visitor.getUID());

        response.setContentType("text/html; charset=UTF-8");
        try (PrintWriter out = response.getWriter()) {
            PebbleTemplate template = Utils.getEngine().getTemplate("views/pm_inbox.html");
            Map<String, Object> context = new HashMap<>();
            context.put("title", title);
            context.put("visitor", visitor);
            context.put("msgs", msgs);
            context.put("tags", TagQueries.getPopularTags(sql));
            template.evaluate(out, context);
        }
    }

    protected void doGetSent(JdbcTemplate sql, HttpServletRequest request, HttpServletResponse response, com.juick.User visitor) throws ServletException, IOException {
        /*
        int paramBefore = 0;
        String paramBeforeStr = request.getParameter("before");
        if (paramBeforeStr != null) {
        try {
        paramBefore = Integer.parseInt(paramBeforeStr);
        } catch (NumberFormatException e) {
        }
        }
         */

        String title = "PM: Sent";
        List<com.juick.Message> msgs = PMQueries.getLastPMSent(sql, visitor.getUID());

        String uname = request.getParameter("uname");
        if (!UserQueries.checkUserNameValid(uname)) {
            uname = "";
        }

        response.setContentType("text/html; charset=UTF-8");
        try (PrintWriter out = response.getWriter()) {
            PageTemplates.pageHead(out, visitor, title, null);
            PageTemplates.pageNavigation(out, visitor, null);
            PageTemplates.pageHomeColumn(out, sql, visitor);

            out.println("<section id=\"content\">");

            out.println("<form action=\"/pm/send\" method=\"POST\" enctype=\"multipart/form-data\">");
            out.println("<div class=\"newpm\">");
            out.println("  <div class=\"newpm-to\">To: <input type=\"text\" name=\"uname\" placeholder=\"username\" value=\"" + uname + "\"/></div>");
            out.println("  <div class=\"newpm-body\"><textarea name=\"body\" rows=\"2\"></textarea></div>");
            out.println("  <div class=\"newpm-send\"><input type=\"submit\" value=\"OK\"/></div>");
            out.println("</div>");
            out.println("</form>");

            if (!msgs.isEmpty()) {
                out.println("<ul>");
                for (com.juick.Message msg : msgs) {

                    String txt = Utils.formatMessage(msg.getText());

                    out.println("  <li class=\"msg\">");
                    out.println("    <div class=\"msg-avatar\"><img src=\"//i.juick.com/a/" + visitor.getUID() + ".png\"/></div>");
                    out.println("    <div class=\"msg-cont\">");
                    out.println("      <div class=\"msg-header\">→ <a href=\"/" + msg.getUser().getUName() + "/\">@" + msg.getUser().getUName() + "</a>:</div>");
                    out.println("      <div class=\"msg-ts\"><a href=\"#\" onclick=\"return false\" title=\"" + PageTemplates.sdfSQL.format(msg.getDate()) + " GMT\">" + PageTemplates.formatDate(msg.TimeAgo, msg.getDate()) + "</a></div>");
                    out.println("      <div class=\"msg-txt\">" + txt + "</div>");
                    out.println("    </div>");
                    out.println("  </li>");
                }
                out.println("</ul>");
            }

            /*
            if (msgs.size() >= 20) {
            String nextpage = "?before=" + msgs.get(msgs.size() - 1);
            out.println("<p class=\"page\"><a href=\"" + nextpage + "\">Читать дальше →</a></p>");
            }
             */

            out.println("</section>");

            PageTemplates.pageFooter(request, out, visitor, false);
            PageTemplates.pageEnd(out);
        }
    }

    public void doPostPM(JdbcTemplate sql, HttpServletRequest request, HttpServletResponse response, Stream xmpp, com.juick.User visitor) throws ServletException, IOException {
        String uname = request.getParameter("uname");
        if (uname.startsWith("@")) {
            uname = uname.substring(1);
        }
        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, visitor.getUID())) {
            response.sendError(403);
            return;
        }

        if (PMQueries.createPM(sql, visitor.getUID(), uid, body)) {
            if (xmpp != null) {
                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(visitor);
                jmsg.setText(body);
                msg.childs.add(jmsg);
                xmpp.send(msg);

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

                List<String> jids = UserQueries.getJIDsbyUID(sql, uid);
                for (String jid : jids) {
                    Message mm = new Message();
                    mm.to = new JID(jid);
                    mm.type = Message.Type.chat;
                    if (PMQueries.havePMinRoster(sql, visitor.getUID(), 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 {
                logger.log(Level.WARNING, "XMPP unavailable");
            }

            Utils.sendTemporaryRedirect(response, "/pm/sent");

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