/*
 * Juick
 * Copyright (C) 2008-2013, 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.http.www;

import com.juick.server.Endpoints;
import org.springframework.jdbc.core.JdbcTemplate;

import javax.servlet.ServletException;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;

/**
 *
 * @author Ugnich Anton
 */
public class Settings {

    protected void doGet(JdbcTemplate sql, HttpServletRequest request,
                         HttpServletResponse response) throws ServletException, IOException {
        com.juick.User visitor = Utils.getVisitorUser(sql, request, response);

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

            out.println("<div id=\"topwrapper\">");
            out.println("<div id=\"wrapper\">");
            out.println("<div id=\"content\">");
            out.println("<form action=\"/login\" method=\"post\">");
            out.println("<p>Имя пользователя: <input type=\"text\" name=\"username\"/></p>");
            out.println("<p>Пароль: <input type=\"password\" name=\"password\"/></p>");
            out.println("<p><input type=\"submit\" value=\"    OK    \"/></p>");
            out.println("</form>");
            out.println("</div>");
            out.println("</div>");
            out.println("</div>"); // topwrapper

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

    protected void doPost(JdbcTemplate sql, HttpServletRequest request,
                          HttpServletResponse response) throws ServletException, IOException {
        String username = request.getParameter("username");
        String password = request.getParameter("password");
        if (username == null || password == null || username.length() > 32 || password.isEmpty()) {
            response.sendError(400);
            return;
        }

        int uid = com.juick.server.UserQueries.checkPassword(sql, username, password);
        if (uid > 0) {
            String hash = com.juick.server.UserQueries.getHashByUID(sql, uid);
            Cookie c = new Cookie("hash", hash);
            c.setDomain("." + Endpoints.getWwwJuickComDomain());
            c.setMaxAge(365 * 24 * 60 * 60);
            response.addCookie(c);


            if (uid > 0) {
                sql.update("DELETE FROM logins WHERE user_id=?", uid);
            }

            String referer = request.getHeader("Referer");
            if (referer != null && referer.startsWith("http://"+Endpoints.wwwJuickCom+"/") && !referer.equals("http://"+Endpoints.wwwJuickCom+"/login")) {
                response.sendRedirect(referer);
            } else {
                response.sendRedirect("/");
            }
        } else {
            response.sendError(403);
        }
    }
}