IWorldComm.cs

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 */

using System;
using OpenMetaverse;
using OpenSim.Framework;

namespace OpenSim.Region.Framework.Interfaces
{
    public interface IWorldCommListenerInfo
    {
        Object[] GetSerializationData();
        UUID GetItemID();
        UUID GetHostID();
        int GetChannel();
        uint GetLocalID();
        int GetHandle();
        string GetMessage();
        string GetName();
        bool IsActive();
        void Deactivate();
        void Activate();
        UUID GetID();

        /// <summary>
        /// Bitfield indicating which strings should be processed as regex.
        /// 1 corresponds to IWorldCommListenerInfo::GetName()
        /// 2 corresponds to IWorldCommListenerInfo::GetMessage()
        /// </summary>
        int RegexBitfield { get; }
    }

    public interface IWorldComm
    {
        /// <summary>
        /// Total number of listeners
        /// </summary>
        int ListenerCount { get; }

        /// <summary>
        /// Create a listen event callback with the specified filters.
        /// The parameters localID,itemID are needed to uniquely identify
        /// the script during 'peek' time. Parameter hostID is needed to
        /// determine the position of the script.
        /// </summary>
        /// <param name="LocalID">localID of the script engine</param>
        /// <param name="itemID">UUID of the script engine</param>
        /// <param name="hostID">UUID of the SceneObjectPart</param>
        /// <param name="channel">channel to listen on</param>
        /// <param name="name">name to filter on</param>
        /// <param name="id">key to filter on (user given, could be totally faked)</param>
        /// <param name="msg">msg to filter on</param>
        /// <returns>number of the scripts handle</returns>
        int Listen(uint LocalID, UUID itemID, UUID hostID, int channel, string name, UUID id, string msg);

         /// <summary>
        /// Create a listen event callback with the specified filters.
        /// The parameters localID,itemID are needed to uniquely identify
        /// the script during 'peek' time. Parameter hostID is needed to
        /// determine the position of the script.
        /// </summary>
        /// <param name="LocalID">localID of the script engine</param>
        /// <param name="itemID">UUID of the script engine</param>
        /// <param name="hostID">UUID of the SceneObjectPart</param>
        /// <param name="channel">channel to listen on</param>
        /// <param name="name">name to filter on</param>
        /// <param name="id">key to filter on (user given, could be totally faked)</param>
        /// <param name="msg">msg to filter on</param>
        /// <param name="regexBitfield">Bitfield indicating which strings should be processed as regex.</param>
        /// <returns>number of the scripts handle</returns>
        int Listen(uint LocalID, UUID itemID, UUID hostID, int channel, string name, UUID id, string msg, int regexBitfield);

        /// <summary>
        /// This method scans over the objects which registered an interest in listen callbacks.
        /// For everyone it finds, it checks if it fits the given filter. If it does,  then
        /// enqueue the message for delivery to the objects listen event handler.
        /// The enqueued ListenerInfo no longer has filter values, but the actually trigged values.
        /// Objects that do an llSay have their messages delivered here and for nearby avatars,
        /// the OnChatFromClient event is used.
        /// </summary>
        /// <param name="type">type of delvery (whisper,say,shout or regionwide)</param>
        /// <param name="channel">channel to sent on</param>
        /// <param name="name">name of sender (object or avatar)</param>
        /// <param name="id">key of sender (object or avatar)</param>
        /// <param name="msg">msg to sent</param>
        void DeliverMessage(ChatTypeEnum type, int channel, string name, UUID id, string msg);

        /// <summary>
        /// Delivers the message to a specified object in the region.
        /// </summary>
        /// <param name='target'>
        /// Target.
        /// </param>
        /// <param name='channel'>
        /// Channel.
        /// </param>
        /// <param name='name'>
        /// Name.
        /// </param>
        /// <param name='id'>
        /// Identifier.
        /// </param>
        /// <param name='msg'>
        /// Message.
        /// </param>
        void DeliverMessageTo(UUID target, int channel, Vector3 pos, string name, UUID id, string msg);

        /// <summary>
        /// Are there any listen events ready to be dispatched?
        /// </summary>
        /// <returns>boolean indication</returns>
        bool HasMessages();

        /// <summary>
        /// Pop the first availlable listen event from the queue
        /// </summary>
        /// <returns>ListenerInfo with filter filled in</returns>
        IWorldCommListenerInfo GetNextMessage();
        
        void ListenControl(UUID itemID, int handle, int active);
        void ListenRemove(UUID itemID, int handle);
        void DeleteListener(UUID itemID);
        Object[] GetSerializationData(UUID itemID);
        void CreateFromData(uint localID, UUID itemID, UUID hostID,
                            Object[] data);
    }
}