/*
 * Copyright (c) Contributors, http://opensimulator.org/
 * See CONTRIBUTORS.TXT for a full list of copyright holders.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the OpenSim Project nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

using OpenSim.Region.Environment.Interfaces;
using OpenSim.Region.Environment.Modules.Scripting.WorldComm;

namespace OpenSim.Region.ScriptEngine.Common.ScriptEngineBase.AsyncCommandPlugins
{
    public class Listener
    {
        // private static readonly log4net.ILog m_log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);

        public AsyncCommandManager m_CmdManager;

        public Listener(AsyncCommandManager CmdManager)
        {
            m_CmdManager = CmdManager;
        }

        public void CheckListeners()
        {
            if (m_CmdManager.m_ScriptEngine.World == null)
                return;
            IWorldComm comms = m_CmdManager.m_ScriptEngine.World.RequestModuleInterface<IWorldComm>();

            if (comms != null)
            {
                while (comms.HasMessages())
                {
                    ListenerInfo lInfo = comms.GetNextMessage();
                    if (m_CmdManager.m_ScriptEngine.m_ScriptManager.GetScript(
                        lInfo.GetLocalID(), lInfo.GetItemID()) != null)
                    {
                        //Deliver data to prim's listen handler
                        object[] resobj = new object[]
                        {
                        //lInfo.GetChannel(), lInfo.GetName(), lInfo.GetID().ToString(), lInfo.GetMessage()
                            new LSL_Types.LSLInteger(lInfo.GetChannel()), new LSL_Types.LSLString(lInfo.GetName()), new LSL_Types.LSLString(lInfo.GetID().ToString()), new LSL_Types.LSLString(lInfo.GetMessage())
                        };

                        m_CmdManager.m_ScriptEngine.m_EventQueueManager.AddToScriptQueue(
                            lInfo.GetLocalID(), lInfo.GetItemID(), "listen", EventQueueManager.llDetectNull, resobj
                        );
                    }
                    // else
                    //     m_log.Info("[ScriptEngineBase.AsyncCommandPlugins: received a listen event for a (no longer) existing script ("+lInfo.GetLocalID().AsString()+")");
                }
            }
        }
    }
}