/*
 * Juick
 * Copyright (C) 2008-2013, ugnich
 *
 * 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.Message;
import com.juick.server.MessagesQueries;
import com.juick.util.MessageUtils;
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.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
import java.text.SimpleDateFormat;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

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

    private static final SimpleDateFormat sdfRSS = new SimpleDateFormat("EEE, d MMM yyyy HH:mm:ss Z");

    protected void doGet(JdbcTemplate sql, HttpServletResponse response, int uid) throws ServletException, IOException, PebbleException {
        List<Integer> mids = MessagesQueries.getUserBlog(sql, uid, 0, 0);
        if (mids.isEmpty()) {
            response.sendError(HttpServletResponse.SC_NOT_FOUND);
            return;
        }

        List<Message> msgs = MessagesQueries.getMessages(sql, mids);

        msgs.forEach(m -> MessageUtils.formatMessage(m.getText()));

        response.setContentType("application/rss+xml; charset=UTF-8");
        try (PrintWriter out = response.getWriter()) {
            PebbleTemplate template = Utils.getEngine().getTemplate("layouts/rss.xml");
            Map<String, Object> context = new HashMap<>();
            context.put("user", msgs.stream().findFirst().get().getUser());
            context.put("msgs", msgs);
            context.put("sdfRSS", sdfRSS);
            template.evaluate(out, context);
        }
    }
}