/*
 * UserListRequestHandler.cpp
 *
 * Copyright (C) 2009 Matthias Schiffer <matthias@gamezock.de>
 *
 * This program is free software: you can redistribute it and/or modify it
 * under the terms of the GNU 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#include "UserListRequestHandler.h"
#include "../UserBackend.h"
#include <Common/Exception.h>
#include <Common/Logger.h>
#include <Common/XmlPacket.h>
#include <Net/Connection.h>

namespace Mad {
namespace Core {
namespace RequestHandlers {

void UserListRequestHandler::handlePacket(Net::Connection *con, uint16_t requestId, const Common::XmlPacket &packet) {
  if(packet.getType() != "ListUsers") {
    Common::Logger::log(Common::Logger::ERROR, "Received an unexpected packet.");

    Common::XmlPacket ret;
    ret.setType("Error");
    ret.add("ErrorCode", Common::Exception::UNEXPECTED_PACKET);

    con->send(ret.encode(requestId));

    signalFinished().emit();
    return;
  }

  // TODO Require authentication

  connection = con;
  rid = requestId;

  if(!UserBackend::getUserList(sigc::mem_fun(this, &UserListRequestHandler::userListHandler))) {
    Common::XmlPacket ret;
    ret.setType("Error");
    ret.add("ErrorCode", Common::Exception::NOT_IMPLEMENTED);

    con->send(ret.encode(requestId));
    signalFinished().emit();
  }
}

void UserListRequestHandler::userListHandler(const std::map<unsigned long, Common::UserInfo> &info) {
  Common::XmlPacket ret;
  ret.setType("OK");
  ret.addList("users");

  for(std::map<unsigned long, Common::UserInfo>::const_iterator user = info.begin(); user != info.end(); ++user) {
    ret["users"].addEntry();
    Common::XmlPacket::Entry &entry = ret["users"].back();

    entry.add("uid", user->second.getUid());
    entry.add("gid", user->second.getGid());
    entry.add("username", user->second.getUsername());
    entry.add("fullName", user->second.getFullName());
  }

  connection->send(ret.encode(rid));
  signalFinished().emit();
}

}
}
}