/OpenMetaverse/Modules/GroupManager.cs

/*
 * Copyright (c) 2007-2009, openmetaverse.org
 * All rights reserved.
 *
 * - 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.
 * - Neither the name of the openmetaverse.org 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 COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT OWNER OR 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 System;
using System.Collections.Generic;
using OpenMetaverse.Packets;
using OpenMetaverse.StructuredData;
using OpenMetaverse.Messages.Linden;
using OpenMetaverse.Interfaces;

namespace OpenMetaverse
{
    #region Structs

    /// <summary>
    /// Avatar group management
    /// </summary>
    public struct GroupMember
    {
        /// <summary>Key of Group Member</summary>
        public UUID ID;
        /// <summary>Total land contribution</summary>
        public int Contribution;
        /// <summary>Online status information</summary>
        public string OnlineStatus;
        /// <summary>Abilities that the Group Member has</summary>
        public GroupPowers Powers;
        /// <summary>Current group title</summary>
        public string Title;
        /// <summary>Is a group owner</summary>
        public bool IsOwner;
    }

    /// <summary>
    /// Role manager for a group
    /// </summary>
    public struct GroupRole
    {
        /// <summary>Key of the group</summary>
        public UUID GroupID;
        /// <summary>Key of Role</summary>
        public UUID ID;
        /// <summary>Name of Role</summary>
        public string Name;
        /// <summary>Group Title associated with Role</summary>
        public string Title;
        /// <summary>Description of Role</summary>
        public string Description;
        /// <summary>Abilities Associated with Role</summary>
        public GroupPowers Powers;
        /// <summary>Returns the role's title</summary>
        /// <returns>The role's title</returns>
        public override string ToString()
        {
            return Name;
        }
    }

    /// <summary>
    /// Class to represent Group Title
    /// </summary>
    public struct GroupTitle
    {
        /// <summary>Key of the group</summary>
        public UUID GroupID;
        /// <summary>ID of the role title belongs to</summary>
        public UUID RoleID;
        /// <summary>Group Title</summary>
        public string Title;
        /// <summary>Whether title is Active</summary>
        public bool Selected;
        /// <summary>Returns group title</summary>
        public override string ToString()
        {
            return Title;
        }
    }

    /// <summary>
    /// Represents a group on the grid
    /// </summary>
    public struct Group
    {
        /// <summary>Key of Group</summary>
        public UUID ID;
        /// <summary>Key of Group Insignia</summary>
        public UUID InsigniaID;
        /// <summary>Key of Group Founder</summary>
        public UUID FounderID;
        /// <summary>Key of Group Role for Owners</summary>
        public UUID OwnerRole;
        /// <summary>Name of Group</summary>
        public string Name;
        /// <summary>Text of Group Charter</summary>
        public string Charter;
        /// <summary>Title of "everyone" role</summary>
        public string MemberTitle;
        /// <summary>Is the group open for enrolement to everyone</summary>
        public bool OpenEnrollment;
        /// <summary>Will group show up in search</summary>
        public bool ShowInList;
        /// <summary></summary>
        public GroupPowers Powers;
        /// <summary></summary>
        public bool AcceptNotices;
        /// <summary></summary>
        public bool AllowPublish;
        /// <summary>Is the group Mature</summary>
        public bool MaturePublish;
        /// <summary>Cost of group membership</summary>
        public int MembershipFee;
        /// <summary></summary>
        public int Money;
        /// <summary></summary>
        public int Contribution;
        /// <summary>The total number of current members this group has</summary>
        public int GroupMembershipCount;
        /// <summary>The number of roles this group has configured</summary>
        public int GroupRolesCount;
        /// <summary>Show this group in agent's profile</summary>
        public bool ListInProfile;

        /// <summary>Returns the name of the group</summary>
        /// <returns>A string containing the name of the group</returns>
        public override string ToString()
        {
            return Name;
        }
    }

    /// <summary>
    /// A group Vote
    /// </summary>
    public struct Vote
    {
        /// <summary>Key of Avatar who created Vote</summary>
        public UUID Candidate;
        /// <summary>Text of the Vote proposal</summary>
        public string VoteString;
        /// <summary>Total number of votes</summary>
        public int NumVotes;
    }

    /// <summary>
    /// A group proposal
    /// </summary>
    public struct GroupProposal
    {
        /// <summary>The Text of the proposal</summary>
        public string VoteText;
        /// <summary>The minimum number of members that must vote before proposal passes or failes</summary>
        public int Quorum;
        /// <summary>The required ration of yes/no votes required for vote to pass</summary>
        /// <remarks>The three options are Simple Majority, 2/3 Majority, and Unanimous</remarks>
        /// TODO: this should be an enum
        public float Majority;
        /// <summary>The duration in days votes are accepted</summary>
        public int Duration;
    }

    /// <summary>
    /// 
    /// </summary>
    public struct GroupAccountSummary
    {
        /// <summary></summary>
        public int IntervalDays;
        /// <summary></summary>
        public int CurrentInterval;
        /// <summary></summary>
        public string StartDate;
        /// <summary></summary>
        public int Balance;
        /// <summary></summary>
        public int TotalCredits;
        /// <summary></summary>
        public int TotalDebits;
        /// <summary></summary>
        public int ObjectTaxCurrent;
        /// <summary></summary>
        public int LightTaxCurrent;
        /// <summary></summary>
        public int LandTaxCurrent;
        /// <summary></summary>
        public int GroupTaxCurrent;
        /// <summary></summary>
        public int ParcelDirFeeCurrent;
        /// <summary></summary>
        public int ObjectTaxEstimate;
        /// <summary></summary>
        public int LightTaxEstimate;
        /// <summary></summary>
        public int LandTaxEstimate;
        /// <summary></summary>
        public int GroupTaxEstimate;
        /// <summary></summary>
        public int ParcelDirFeeEstimate;
        /// <summary></summary>
        public int NonExemptMembers;
        /// <summary></summary>
        public string LastTaxDate;
        /// <summary></summary>
        public string TaxDate;
    }

    /// <summary>
    /// Struct representing a group notice
    /// </summary>
    public struct GroupNotice
    {
        /// <summary></summary>
        public string Subject;
        /// <summary></summary>
        public string Message;
        /// <summary></summary>
        public UUID AttachmentID;
        /// <summary></summary>
        public UUID OwnerID;

        /// <summary>
        /// 
        /// </summary>
        /// <returns></returns>
        public byte[] SerializeAttachment()
        {
            if (OwnerID == UUID.Zero || AttachmentID == UUID.Zero)
                return Utils.EmptyBytes;

            OpenMetaverse.StructuredData.OSDMap att = new OpenMetaverse.StructuredData.OSDMap();
            att.Add("item_id", OpenMetaverse.StructuredData.OSD.FromUUID(AttachmentID));
            att.Add("owner_id", OpenMetaverse.StructuredData.OSD.FromUUID(OwnerID));

            return OpenMetaverse.StructuredData.OSDParser.SerializeLLSDXmlBytes(att);

            /*
            //I guess this is how this works, no gaurentees
            string lsd = "<llsd><item_id>" + AttachmentID.ToString() + "</item_id><owner_id>"
                + OwnerID.ToString() + "</owner_id></llsd>";
            return Utils.StringToBytes(lsd);
             */
        }
    }

    /// <summary>
    /// Struct representing a group notice list entry
    /// </summary>
    public struct GroupNoticesListEntry
    {
        /// <summary>Notice ID</summary>
        public UUID NoticeID;
        /// <summary>Creation timestamp of notice</summary>
        public uint Timestamp;
        /// <summary>Agent name who created notice</summary>
        public string FromName;
        /// <summary>Notice subject</summary>
        public string Subject;
        /// <summary>Is there an attachment?</summary>
        public bool HasAttachment;
        /// <summary>Attachment Type</summary>
        public AssetType AssetType;

    }

    /// <summary>
    /// Struct representing a member of a group chat session and their settings
    /// </summary>
    public struct ChatSessionMember
    {
        /// <summary>The <see cref="UUID"/> of the Avatar</summary>
        public UUID AvatarKey;
        /// <summary>True if user has voice chat enabled</summary>
        public bool CanVoiceChat;
        /// <summary>True of Avatar has moderator abilities</summary>
        public bool IsModerator;
        /// <summary>True if a moderator has muted this avatars chat</summary>
        public bool MuteText;
        /// <summary>True if a moderator has muted this avatars voice</summary>
        public bool MuteVoice;
    }

    #endregion Structs

    #region Enums

    /// <summary>
    /// Role update flags
    /// </summary>
    public enum GroupRoleUpdate : uint
    {
        /// <summary></summary>
        NoUpdate,
        /// <summary></summary>
        UpdateData,
        /// <summary></summary>
        UpdatePowers,
        /// <summary></summary>
        UpdateAll,
        /// <summary></summary>
        Create,
        /// <summary></summary>
        Delete
    }

    [Flags]
    public enum GroupPowers : ulong
    {
        /// <summary></summary>
        None = 0,

        // Membership
        /// <summary>Can send invitations to groups default role</summary>
        Invite = 1UL << 1,
        /// <summary>Can eject members from group</summary>
        Eject = 1UL << 2,
        /// <summary>Can toggle 'Open Enrollment' and change 'Signup fee'</summary>
        ChangeOptions = 1UL << 3,
        /// <summary>Member is visible in the public member list</summary>
        MemberVisible = 1UL << 47,

        // Roles
        /// <summary>Can create new roles</summary>
        CreateRole = 1UL << 4,
        /// <summary>Can delete existing roles</summary>
        DeleteRole = 1UL << 5,
        /// <summary>Can change Role names, titles and descriptions</summary>
        RoleProperties = 1UL << 6,
        /// <summary>Can assign other members to assigners role</summary>
        AssignMemberLimited = 1UL << 7,
        /// <summary>Can assign other members to any role</summary>
        AssignMember = 1UL << 8,
        /// <summary>Can remove members from roles</summary>
        RemoveMember = 1UL << 9,
        /// <summary>Can assign and remove abilities in roles</summary>
        ChangeActions = 1UL << 10,

        // Identity
        /// <summary>Can change group Charter, Insignia, 'Publish on the web' and which
        /// members are publicly visible in group member listings</summary>
        ChangeIdentity = 1UL << 11,

        // Parcel management
        /// <summary>Can buy land or deed land to group</summary>
        LandDeed = 1UL << 12,
        /// <summary>Can abandon group owned land to Governor Linden on mainland, or Estate owner for
        /// private estates</summary>
        LandRelease = 1UL << 13,
        /// <summary>Can set land for-sale information on group owned parcels</summary>
        LandSetSale = 1UL << 14,
        /// <summary>Can subdivide and join parcels</summary>
        LandDivideJoin = 1UL << 15,


        // Chat
        /// <summary>Can join group chat sessions</summary>
        JoinChat = 1UL << 16,
        /// <summary>Can use voice chat in Group Chat sessions</summary>
        AllowVoiceChat = 1UL << 27,
        /// <summary>Can moderate group chat sessions</summary>
        ModerateChat = 1UL << 37,

        // Parcel identity
        /// <summary>Can toggle "Show in Find Places" and set search category</summary>
        FindPlaces = 1UL << 17,
        /// <summary>Can change parcel name, description, and 'Publish on web' settings</summary>
        LandChangeIdentity = 1UL << 18,
        /// <summary>Can set the landing point and teleport routing on group land</summary>
        SetLandingPoint = 1UL << 19,

        // Parcel settings
        /// <summary>Can change music and media settings</summary>
        ChangeMedia = 1UL << 20,
        /// <summary>Can toggle 'Edit Terrain' option in Land settings</summary>
        LandEdit = 1UL << 21,
        /// <summary>Can toggle various About Land > Options settings</summary>
        LandOptions = 1UL << 22,

        // Parcel powers
        /// <summary>Can always terraform land, even if parcel settings have it turned off</summary>
        AllowEditLand = 1UL << 23,
        /// <summary>Can always fly while over group owned land</summary>
        AllowFly = 1UL << 24,
        /// <summary>Can always rez objects on group owned land</summary>
        AllowRez = 1UL << 25,
        /// <summary>Can always create landmarks for group owned parcels</summary>
        AllowLandmark = 1UL << 26,
        /// <summary>Can set home location on any group owned parcel</summary>
        AllowSetHome = 1UL << 28,


        // Parcel access
        /// <summary>Can modify public access settings for group owned parcels</summary>
        LandManageAllowed = 1UL << 29,
        /// <summary>Can manager parcel ban lists on group owned land</summary>
        LandManageBanned = 1UL << 30,
        /// <summary>Can manage pass list sales information</summary>
        LandManagePasses = 1UL << 31,
        /// <summary>Can eject and freeze other avatars on group owned land</summary>
        LandEjectAndFreeze = 1UL << 32,

        // Parcel content
        /// <summary>Can return objects set to group</summary>
        ReturnGroupSet = 1UL << 33,
        /// <summary>Can return non-group owned/set objects</summary>
        ReturnNonGroup = 1UL << 34,
        /// <summary>Can return group owned objects</summary>
        ReturnGroupOwned = 1UL << 48,

        /// <summary>Can landscape using Linden plants</summary>
        LandGardening = 1UL << 35,

        // Objects
        /// <summary>Can deed objects to group</summary>
        DeedObject = 1UL << 36,
        /// <summary>Can move group owned objects</summary>
        ObjectManipulate = 1UL << 38,
        /// <summary>Can set group owned objects for-sale</summary>
        ObjectSetForSale = 1UL << 39,

        /// <summary>Pay group liabilities and receive group dividends</summary>
        Accountable = 1UL << 40,

        /// <summary>List and Host group events</summary>
        HostEvent = 1UL << 41,

        // Notices and proposals
        /// <summary>Can send group notices</summary>
        SendNotices = 1UL << 42,
        /// <summary>Can receive group notices</summary>
        ReceiveNotices = 1UL << 43,
        /// <summary>Can create group proposals</summary>
        StartProposal = 1UL << 44,
        /// <summary>Can vote on group proposals</summary>
        VoteOnProposal = 1UL << 45
    }

    #endregion Enums

    /// <summary>
    /// Handles all network traffic related to reading and writing group
    /// information
    /// </summary>
    public class GroupManager
    {
        #region Delegates

        /// <summary>The event subscribers. null if no subcribers</summary>
        private EventHandler<CurrentGroupsEventArgs> m_CurrentGroups;

        /// <summary>Raises the CurrentGroups event</summary>
        /// <param name="e">A CurrentGroupsEventArgs object containing the
        /// data sent from the simulator</param>
        protected virtual void OnCurrentGroups(CurrentGroupsEventArgs e)
        {
            EventHandler<CurrentGroupsEventArgs> handler = m_CurrentGroups;
            if (handler != null)
                handler(this, e);
        }

        /// <summary>Thread sync lock object</summary>
        private readonly object m_CurrentGroupsLock = new object();

        /// <summary>Raised when the simulator sends us data containing
        /// our current group membership</summary>
        public event EventHandler<CurrentGroupsEventArgs> CurrentGroups
        {
            add { lock (m_CurrentGroupsLock) { m_CurrentGroups += value; } }
            remove { lock (m_CurrentGroupsLock) { m_CurrentGroups -= value; } }
        }

        /// <summary>The event subscribers. null if no subcribers</summary>
        private EventHandler<GroupNamesEventArgs> m_GroupNames;

        /// <summary>Raises the GroupNamesReply event</summary>
        /// <param name="e">A GroupNamesEventArgs object containing the
        /// data response from the simulator</param>
        protected virtual void OnGroupNamesReply(GroupNamesEventArgs e)
        {
            EventHandler<GroupNamesEventArgs> handler = m_GroupNames;
            if (handler != null)
                handler(this, e);
        }

        /// <summary>Thread sync lock object</summary>
        private readonly object m_GroupNamesLock = new object();

        /// <summary>Raised when the simulator responds to a RequestGroupName 
        /// or RequestGroupNames request</summary>
        public event EventHandler<GroupNamesEventArgs> GroupNamesReply
        {
            add { lock (m_GroupNamesLock) { m_GroupNames += value; } }
            remove { lock (m_GroupNamesLock) { m_GroupNames -= value; } }
        }

        /// <summary>The event subscribers. null if no subcribers</summary>
        private EventHandler<GroupProfileEventArgs> m_GroupProfile;

        /// <summary>Raises the GroupProfile event</summary>
        /// <param name="e">An GroupProfileEventArgs object containing the
        /// data returned from the simulator</param>
        protected virtual void OnGroupProfile(GroupProfileEventArgs e)
        {
            EventHandler<GroupProfileEventArgs> handler = m_GroupProfile;
            if (handler != null)
                handler(this, e);
        }

        /// <summary>Thread sync lock object</summary>
        private readonly object m_GroupProfileLock = new object();

        /// <summary>Raised when the simulator responds to a <see cref="RequestGroupProfile"/> request</summary>
        public event EventHandler<GroupProfileEventArgs> GroupProfile
        {
            add { lock (m_GroupProfileLock) { m_GroupProfile += value; } }
            remove { lock (m_GroupProfileLock) { m_GroupProfile -= value; } }
        }

        /// <summary>The event subscribers. null if no subcribers</summary>
        private EventHandler<GroupMembersReplyEventArgs> m_GroupMembers;

        /// <summary>Raises the GroupMembers event</summary>
        /// <param name="e">A GroupMembersEventArgs object containing the
        /// data returned from the simulator</param>
        protected virtual void OnGroupMembersReply(GroupMembersReplyEventArgs e)
        {
            EventHandler<GroupMembersReplyEventArgs> handler = m_GroupMembers;
            if (handler != null)
                handler(this, e);
        }

        /// <summary>Thread sync lock object</summary>
        private readonly object m_GroupMembersLock = new object();

        /// <summary>Raised when the simulator responds to a <see cref="RequestGroupMembers"/> request</summary>
        public event EventHandler<GroupMembersReplyEventArgs> GroupMembersReply
        {
            add { lock (m_GroupMembersLock) { m_GroupMembers += value; } }
            remove { lock (m_GroupMembersLock) { m_GroupMembers -= value; } }
        }

        /// <summary>The event subscribers. null if no subcribers</summary>
        private EventHandler<GroupRolesDataReplyEventArgs> m_GroupRoles;

        /// <summary>Raises the GroupRolesDataReply event</summary>
        /// <param name="e">A GroupRolesDataReplyEventArgs object containing the
        /// data returned from the simulator</param>
        protected virtual void OnGroupRoleDataReply(GroupRolesDataReplyEventArgs e)
        {
            EventHandler<GroupRolesDataReplyEventArgs> handler = m_GroupRoles;
            if (handler != null)
                handler(this, e);
        }

        /// <summary>Thread sync lock object</summary>
        private readonly object m_GroupRolesLock = new object();

        /// <summary>Raised when the simulator responds to a <see cref="RequestGroupRoleData"/> request</summary>
        public event EventHandler<GroupRolesDataReplyEventArgs> GroupRoleDataReply
        {
            add { lock (m_GroupRolesLock) { m_GroupRoles += value; } }
            remove { lock (m_GroupRolesLock) { m_GroupRoles -= value; } }
        }

        /// <summary>The event subscribers. null if no subcribers</summary>
        private EventHandler<GroupRolesMembersReplyEventArgs> m_GroupRoleMembers;

        /// <summary>Raises the GroupRoleMembersReply event</summary>
        /// <param name="e">A GroupRolesRoleMembersReplyEventArgs object containing the
        /// data returned from the simulator</param>
        protected virtual void OnGroupRoleMembers(GroupRolesMembersReplyEventArgs e)
        {
            EventHandler<GroupRolesMembersReplyEventArgs> handler = m_GroupRoleMembers;
            if (handler != null)
                handler(this, e);
        }

        /// <summary>Thread sync lock object</summary>
        private readonly object m_GroupRolesMembersLock = new object();

        /// <summary>Raised when the simulator responds to a <see cref="RequestGroupRolesMembers"/> request</summary>
        public event EventHandler<GroupRolesMembersReplyEventArgs> GroupRoleMembersReply
        {
            add { lock (m_GroupRolesMembersLock) { m_GroupRoleMembers += value; } }
            remove { lock (m_GroupRolesMembersLock) { m_GroupRoleMembers -= value; } }
        }

        /// <summary>The event subscribers. null if no subcribers</summary>
        private EventHandler<GroupTitlesReplyEventArgs> m_GroupTitles;


        /// <summary>Raises the GroupTitlesReply event</summary>
        /// <param name="e">A GroupTitlesReplyEventArgs object containing the
        /// data returned from the simulator</param>
        protected virtual void OnGroupTitles(GroupTitlesReplyEventArgs e)
        {
            EventHandler<GroupTitlesReplyEventArgs> handler = m_GroupTitles;
            if (handler != null)
                handler(this, e);
        }

        /// <summary>Thread sync lock object</summary>
        private readonly object m_GroupTitlesLock = new object();

        /// <summary>Raised when the simulator responds to a <see cref="RequestGroupTitles"/> request</summary>
        public event EventHandler<GroupTitlesReplyEventArgs> GroupTitlesReply
        {
            add { lock (m_GroupTitlesLock) { m_GroupTitles += value; } }
            remove { lock (m_GroupTitlesLock) { m_GroupTitles -= value; } }
        }

        /// <summary>The event subscribers. null if no subcribers</summary>
        private EventHandler<GroupAccountSummaryReplyEventArgs> m_GroupAccountSummary;

        /// <summary>Raises the GroupAccountSummary event</summary>
        /// <param name="e">A GroupAccountSummaryReplyEventArgs object containing the
        /// data returned from the simulator</param>
        protected virtual void OnGroupAccountSummaryReply(GroupAccountSummaryReplyEventArgs e)
        {
            EventHandler<GroupAccountSummaryReplyEventArgs> handler = m_GroupAccountSummary;
            if (handler != null)
                handler(this, e);
        }

        /// <summary>Thread sync lock object</summary>
        private readonly object m_GroupAccountSummaryLock = new object();

        /// <summary>Raised when a response to a RequestGroupAccountSummary is returned
        /// by the simulator</summary>
        public event EventHandler<GroupAccountSummaryReplyEventArgs> GroupAccountSummaryReply
        {
            add { lock (m_GroupAccountSummaryLock) { m_GroupAccountSummary += value; } }
            remove { lock (m_GroupAccountSummaryLock) { m_GroupAccountSummary -= value; } }
        }

        /// <summary>The event subscribers. null if no subcribers</summary>
        private EventHandler<GroupCreatedReplyEventArgs> m_GroupCreated;

        /// <summary>Raises the GroupCreated event</summary>
        /// <param name="e">An GroupCreatedEventArgs object containing the
        /// data returned from the simulator</param>
        protected virtual void OnGroupCreatedReply(GroupCreatedReplyEventArgs e)
        {
            EventHandler<GroupCreatedReplyEventArgs> handler = m_GroupCreated;
            if (handler != null)
                handler(this, e);
        }
        /// <summary>Thread sync lock object</summary>
        private readonly object m_GroupCreatedLock = new object();

        /// <summary>Raised when a request to create a group is successful</summary>
        public event EventHandler<GroupCreatedReplyEventArgs> GroupCreatedReply
        {
            add { lock (m_GroupCreatedLock) { m_GroupCreated += value; } }
            remove { lock (m_GroupCreatedLock) { m_GroupCreated -= value; } }
        }

        /// <summary>The event subscribers. null if no subcribers</summary>
        private EventHandler<GroupOperationEventArgs> m_GroupJoined;

        /// <summary>Raises the GroupJoined event</summary>
        /// <param name="e">A GroupOperationEventArgs object containing the
        /// result of the operation returned from the simulator</param>
        protected virtual void OnGroupJoinedReply(GroupOperationEventArgs e)
        {
            EventHandler<GroupOperationEventArgs> handler = m_GroupJoined;
            if (handler != null)
                handler(this, e);
        }
        /// <summary>Thread sync lock object</summary>
        private readonly object m_GroupJoinedLock = new object();

        /// <summary>Raised when a request to join a group either
        /// fails or succeeds</summary>
        public event EventHandler<GroupOperationEventArgs> GroupJoinedReply
        {
            add { lock (m_GroupJoinedLock) { m_GroupJoined += value; } }
            remove { lock (m_GroupJoinedLock) { m_GroupJoined -= value; } }
        }

        /// <summary>The event subscribers. null if no subcribers</summary>
        private EventHandler<GroupOperationEventArgs> m_GroupLeft;

        /// <summary>Raises the GroupLeft event</summary>
        /// <param name="e">A GroupOperationEventArgs object containing the
        /// result of the operation returned from the simulator</param>
        protected virtual void OnGroupLeaveReply(GroupOperationEventArgs e)
        {
            EventHandler<GroupOperationEventArgs> handler = m_GroupLeft;
            if (handler != null)
                handler(this, e);
        }
        /// <summary>Thread sync lock object</summary>
        private readonly object m_GroupLeftLock = new object();

        /// <summary>Raised when a request to leave a group either
        /// fails or succeeds</summary>
        public event EventHandler<GroupOperationEventArgs> GroupLeaveReply
        {
            add { lock (m_GroupLeftLock) { m_GroupLeft += value; } }
            remove { lock (m_GroupLeftLock) { m_GroupLeft -= value; } }
        }

        /// <summary>The event subscribers. null if no subcribers</summary>
        private EventHandler<GroupDroppedEventArgs> m_GroupDropped;

        /// <summary>Raises the GroupDropped event</summary>
        /// <param name="e">An GroupDroppedEventArgs object containing the
        /// the group your agent left</param>
        protected virtual void OnGroupDropped(GroupDroppedEventArgs e)
        {
            EventHandler<GroupDroppedEventArgs> handler = m_GroupDropped;
            if (handler != null)
                handler(this, e);
        }
        /// <summary>Thread sync lock object</summary>
        private readonly object m_GroupDroppedLock = new object();

        /// <summary>Raised when A group is removed from the group server</summary>
        public event EventHandler<GroupDroppedEventArgs> GroupDropped
        {
            add { lock (m_GroupDroppedLock) { m_GroupDropped += value; } }
            remove { lock (m_GroupDroppedLock) { m_GroupDropped -= value; } }
        }

        /// <summary>The event subscribers. null if no subcribers</summary>
        private EventHandler<GroupOperationEventArgs> m_GroupMemberEjected;

        /// <summary>Raises the GroupMemberEjected event</summary>
        /// <param name="e">An GroupMemberEjectedEventArgs object containing the
        /// data returned from the simulator</param>
        protected virtual void OnGroupMemberEjected(GroupOperationEventArgs e)
        {
            EventHandler<GroupOperationEventArgs> handler = m_GroupMemberEjected;
            if (handler != null)
                handler(this, e);
        }
        /// <summary>Thread sync lock object</summary>
        private readonly object m_GroupMemberEjectedLock = new object();

        /// <summary>Raised when a request to eject a member from a group either
        /// fails or succeeds</summary>
        public event EventHandler<GroupOperationEventArgs> GroupMemberEjected
        {
            add { lock (m_GroupMemberEjectedLock) { m_GroupMemberEjected += value; } }
            remove { lock (m_GroupMemberEjectedLock) { m_GroupMemberEjected -= value; } }
        }

        /// <summary>The event subscribers. null if no subcribers</summary>
        private EventHandler<GroupNoticesListReplyEventArgs> m_GroupNoticesListReply;

        /// <summary>Raises the GroupNoticesListReply event</summary>
        /// <param name="e">An GroupNoticesListReplyEventArgs object containing the
        /// data returned from the simulator</param>
        protected virtual void OnGroupNoticesListReply(GroupNoticesListReplyEventArgs e)
        {
            EventHandler<GroupNoticesListReplyEventArgs> handler = m_GroupNoticesListReply;
            if (handler != null)
                handler(this, e);
        }

        /// <summary>Thread sync lock object</summary>
        private readonly object m_GroupNoticesListReplyLock = new object();

        /// <summary>Raised when the simulator sends us group notices</summary>
        /// <seealso cref="RequestGroupNoticesList"/>
        public event EventHandler<GroupNoticesListReplyEventArgs> GroupNoticesListReply
        {
            add { lock (m_GroupNoticesListReplyLock) { m_GroupNoticesListReply += value; } }
            remove { lock (m_GroupNoticesListReplyLock) { m_GroupNoticesListReply -= value; } }
        }

        /// <summary>The event subscribers. null if no subcribers</summary>
        private EventHandler<GroupInvitationEventArgs> m_GroupInvitation;

        /// <summary>Raises the GroupInvitation event</summary>
        /// <param name="e">An GroupInvitationEventArgs object containing the
        /// data returned from the simulator</param>
        protected virtual void OnGroupInvitation(GroupInvitationEventArgs e)
        {
            EventHandler<GroupInvitationEventArgs> handler = m_GroupInvitation;
            if (handler != null)
                handler(this, e);
        }

        /// <summary>Thread sync lock object</summary>
        private readonly object m_GroupInvitationLock = new object();

        /// <summary>Raised when another agent invites our avatar to join a group</summary>
        public event EventHandler<GroupInvitationEventArgs> GroupInvitation
        {
            add { lock (m_GroupInvitationLock) { m_GroupInvitation += value; } }
            remove { lock (m_GroupInvitationLock) { m_GroupInvitation -= value; } }
        }
        #endregion Delegates

        #region Events

        #endregion Events

        /// <summary>A reference to the current <seealso cref="GridClient"/> instance</summary>
        private GridClient Client;
        /// <summary>Currently-active group members requests</summary>
        private List<UUID> GroupMembersRequests;
        /// <summary>Currently-active group roles requests</summary>
        private List<UUID> GroupRolesRequests;
        /// <summary>Currently-active group role-member requests</summary>
        private List<UUID> GroupRolesMembersRequests;
        /// <summary>Dictionary keeping group members while request is in progress</summary>
        private InternalDictionary<UUID, Dictionary<UUID, GroupMember>> TempGroupMembers;
        /// <summary>Dictionary keeping mebmer/role mapping while request is in progress</summary>
        private InternalDictionary<UUID, List<KeyValuePair<UUID, UUID>>> TempGroupRolesMembers;
        /// <summary>Dictionary keeping GroupRole information while request is in progress</summary>
        private InternalDictionary<UUID, Dictionary<UUID, GroupRole>> TempGroupRoles;
        /// <summary>Caches group name lookups</summary>
        public InternalDictionary<UUID, string> GroupName2KeyCache;

        /// <summary>
        /// Construct a new instance of the GroupManager class
        /// </summary>
        /// <param name="client">A reference to the current <seealso cref="GridClient"/> instance</param>
        public GroupManager(GridClient client)
        {
            Client = client;

            TempGroupMembers = new InternalDictionary<UUID, Dictionary<UUID, GroupMember>>();
            GroupMembersRequests = new List<UUID>();
            TempGroupRoles = new InternalDictionary<UUID, Dictionary<UUID, GroupRole>>();
            GroupRolesRequests = new List<UUID>();
            TempGroupRolesMembers = new InternalDictionary<UUID, List<KeyValuePair<UUID, UUID>>>();
            GroupRolesMembersRequests = new List<UUID>();
            GroupName2KeyCache = new InternalDictionary<UUID, string>();

            Client.Self.IM += Self_IM;

            Client.Network.RegisterEventCallback("AgentGroupDataUpdate", new Caps.EventQueueCallback(AgentGroupDataUpdateMessageHandler));            
            // deprecated in simulator v1.27
            Client.Network.RegisterCallback(PacketType.AgentDropGroup, AgentDropGroupHandler);
            Client.Network.RegisterCallback(PacketType.GroupTitlesReply, GroupTitlesReplyHandler);
            Client.Network.RegisterCallback(PacketType.GroupProfileReply, GroupProfileReplyHandler);
            Client.Network.RegisterCallback(PacketType.GroupMembersReply, GroupMembersHandler);
            Client.Network.RegisterCallback(PacketType.GroupRoleDataReply, GroupRoleDataReplyHandler);
            Client.Network.RegisterCallback(PacketType.GroupRoleMembersReply, GroupRoleMembersReplyHandler);
            Client.Network.RegisterCallback(PacketType.GroupActiveProposalItemReply, GroupActiveProposalItemHandler);
            Client.Network.RegisterCallback(PacketType.GroupVoteHistoryItemReply, GroupVoteHistoryItemHandler);
            Client.Network.RegisterCallback(PacketType.GroupAccountSummaryReply, GroupAccountSummaryReplyHandler);
            Client.Network.RegisterCallback(PacketType.CreateGroupReply, CreateGroupReplyHandler);
            Client.Network.RegisterCallback(PacketType.JoinGroupReply, JoinGroupReplyHandler);
            Client.Network.RegisterCallback(PacketType.LeaveGroupReply, LeaveGroupReplyHandler);
            Client.Network.RegisterCallback(PacketType.UUIDGroupNameReply, UUIDGroupNameReplyHandler);
            Client.Network.RegisterCallback(PacketType.EjectGroupMemberReply, EjectGroupMemberReplyHandler);
            Client.Network.RegisterCallback(PacketType.GroupNoticesListReply, GroupNoticesListReplyHandler);            

            Client.Network.RegisterEventCallback("AgentDropGroup", new Caps.EventQueueCallback(AgentDropGroupMessageHandler));
        }

        void Self_IM(object sender, InstantMessageEventArgs e)
        {
            if(m_GroupInvitation != null && e.IM.Dialog == InstantMessageDialog.GroupInvitation)
            {
                GroupInvitationEventArgs args = new GroupInvitationEventArgs(e.Simulator, e.IM.FromAgentID, e.IM.FromAgentName, e.IM.Message);
                OnGroupInvitation(args);

                if (args.Accept)
                {
                    Client.Self.InstantMessage("name", e.IM.FromAgentID, "message", e.IM.IMSessionID, InstantMessageDialog.GroupInvitationAccept,
                         InstantMessageOnline.Online, Client.Self.SimPosition, UUID.Zero, Utils.EmptyBytes);
                }
                else
                {
                    Client.Self.InstantMessage("name", e.IM.FromAgentID, "message", e.IM.IMSessionID, InstantMessageDialog.GroupInvitationDecline,
                         InstantMessageOnline.Online, Client.Self.SimPosition, UUID.Zero, new byte[1] { 0 });
                }            
            }
        }


        #region Public Methods

        /// <summary>
        /// Request a current list of groups the avatar is a member of.
        /// </summary>
        /// <remarks>CAPS Event Queue must be running for this to work since the results
        /// come across CAPS.</remarks>
        public void RequestCurrentGroups()
        {
            AgentDataUpdateRequestPacket request = new AgentDataUpdateRequestPacket();

            request.AgentData.AgentID = Client.Self.AgentID;
            request.AgentData.SessionID = Client.Self.SessionID;

            Client.Network.SendPacket(request);
        }

        /// <summary>
        /// Lookup name of group based on groupID
        /// </summary>
        /// <param name="groupID">groupID of group to lookup name for.</param>
        public void RequestGroupName(UUID groupID)
        {
            // if we already have this in the cache, return from cache instead of making a request
            if (GroupName2KeyCache.ContainsKey(groupID))
            {
                Dictionary<UUID, string> groupNames = new Dictionary<UUID, string>();
                lock (GroupName2KeyCache.Dictionary)
                    groupNames.Add(groupID, GroupName2KeyCache.Dictionary[groupID]);

                if (m_GroupNames != null)
                {
                    OnGroupNamesReply(new GroupNamesEventArgs(groupNames));
                }
            }

            else
            {
                UUIDGroupNameRequestPacket req = new UUIDGroupNameRequestPacket();
                UUIDGroupNameRequestPacket.UUIDNameBlockBlock[] block = new UUIDGroupNameRequestPacket.UUIDNameBlockBlock[1];
                block[0] = new UUIDGroupNameRequestPacket.UUIDNameBlockBlock();
                block[0].ID = groupID;
                req.UUIDNameBlock = block;
                Client.Network.SendPacket(req);
            }
        }

        /// <summary>
        /// Request lookup of multiple group names
        /// </summary>
        /// <param name="groupIDs">List of group IDs to request.</param>
        public void RequestGroupNames(List<UUID> groupIDs)
        {
            Dictionary<UUID, string> groupNames = new Dictionary<UUID, string>();
            lock (GroupName2KeyCache.Dictionary)
            {
                foreach (UUID groupID in groupIDs)
                {
                    if (GroupName2KeyCache.ContainsKey(groupID))
                        groupNames[groupID] = GroupName2KeyCache.Dictionary[groupID];
                }
            }

            if (groupIDs.Count > 0)
            {
                UUIDGroupNameRequestPacket req = new UUIDGroupNameRequestPacket();
                UUIDGroupNameRequestPacket.UUIDNameBlockBlock[] block = new UUIDGroupNameRequestPacket.UUIDNameBlockBlock[groupIDs.Count];

                for (int i = 0; i < groupIDs.Count; i++)
                {
                    block[i] = new UUIDGroupNameRequestPacket.UUIDNameBlockBlock();
                    block[i].ID = groupIDs[i];
                }

                req.UUIDNameBlock = block;
                Client.Network.SendPacket(req);
            }

            // fire handler from cache
            if (groupNames.Count > 0 && m_GroupNames != null)
            {
                OnGroupNamesReply(new GroupNamesEventArgs(groupNames));
            }
        }

        /// <summary>Lookup group profile data such as name, enrollment, founder, logo, etc</summary>
        /// <remarks>Subscribe to <code>OnGroupProfile</code> event to receive the results.</remarks>
        /// <param name="group">group ID (UUID)</param>
        public void RequestGroupProfile(UUID group)
        {
            GroupProfileRequestPacket request = new GroupProfileRequestPacket();

            request.AgentData.AgentID = Client.Self.AgentID;
            request.AgentData.SessionID = Client.Self.SessionID;
            request.GroupData.GroupID = group;

            Client.Network.SendPacket(request);
        }

        /// <summary>Request a list of group members.</summary>
        /// <remarks>Subscribe to <code>OnGroupMembers</code> event to receive the results.</remarks>
        /// <param name="group">group ID (UUID)</param>
        /// <returns>UUID of the request, use to index into cache</returns>
        public UUID RequestGroupMembers(UUID group)
        {
            UUID requestID = UUID.Random();
            lock (GroupMembersRequests) GroupMembersRequests.Add(requestID);

            GroupMembersRequestPacket request = new GroupMembersRequestPacket();

            request.AgentData.AgentID = Client.Self.AgentID;
            request.AgentData.SessionID = Client.Self.SessionID;
            request.GroupData.GroupID = group;
            request.GroupData.RequestID = requestID;

            Client.Network.SendPacket(request);
            return requestID;
        }

        /// <summary>Request group roles</summary>
        /// <remarks>Subscribe to <code>OnGroupRoles</code> event to receive the results.</remarks>
        /// <param name="group">group ID (UUID)</param>
        /// <returns>UUID of the request, use to index into cache</returns>
        public UUID RequestGroupRoles(UUID group)
        {
            UUID requestID = UUID.Random();
            lock (GroupRolesRequests) GroupRolesRequests.Add(requestID);

            GroupRoleDataRequestPacket request = new GroupRoleDataRequestPacket();

            request.AgentData.AgentID = Client.Self.AgentID;
            request.AgentData.SessionID = Client.Self.SessionID;
            request.GroupData.GroupID = group;
            request.GroupData.RequestID = requestID;

            Client.Network.SendPacket(request);
            return requestID;
        }

        /// <summary>Request members (members,role) role mapping for a group.</summary>
        /// <remarks>Subscribe to <code>OnGroupRolesMembers</code> event to receive the results.</remarks>
        /// <param name="group">group ID (UUID)</param>
        /// <returns>UUID of the request, use to index into cache</returns>
        public UUID RequestGroupRolesMembers(UUID group)
        {
            UUID requestID = UUID.Random();
            lock (GroupRolesRequests) GroupRolesMembersRequests.Add(requestID);

            GroupRoleMembersRequestPacket request = new GroupRoleMembersRequestPacket();
            request.AgentData.AgentID = Client.Self.AgentID;
            request.AgentData.SessionID = Client.Self.SessionID;
            request.GroupData.GroupID = group;
            request.GroupData.RequestID = requestID;
            Client.Network.SendPacket(request);
            return requestID;
        }

        /// <summary>Request a groups Titles</summary>
        /// <remarks>Subscribe to <code>OnGroupTitles</code> event to receive the results.</remarks>
        /// <param name="group">group ID (UUID)</param>
        /// <returns>UUID of the request, use to index into cache</returns>
        public UUID RequestGroupTitles(UUID group)
        {
            UUID requestID = UUID.Random();

            GroupTitlesRequestPacket request = new GroupTitlesRequestPacket();

            request.AgentData.AgentID = Client.Self.AgentID;
            request.AgentData.SessionID = Client.Self.SessionID;
            request.AgentData.GroupID = group;
            request.AgentData.RequestID = requestID;

            Client.Network.SendPacket(request);
            return requestID;
        }

        /// <summary>Begin to get the group account summary</summary>
        /// <remarks>Subscribe to the <code>OnGroupAccountSummary</code> event to receive the results.</remarks>
        /// <param name="group">group ID (UUID)</param>
        /// <param name="intervalDays">How long of an interval</param>
        /// <param name="currentInterval">Which interval (0 for current, 1 for last)</param>
        public void RequestGroupAccountSummary(UUID group, int intervalDays, int currentInterval)
        {
            GroupAccountSummaryRequestPacket p = new GroupAccountSummaryRequestPacket();
            p.AgentData.AgentID = Client.Self.AgentID;
            p.AgentData.SessionID = Client.Self.SessionID;
            p.AgentData.GroupID = group;
            p.MoneyData.RequestID = UUID.Random();
            p.MoneyData.CurrentInterval = currentInterval;
            p.MoneyData.IntervalDays = intervalDays;
            Client.Network.SendPacket(p);
        }

        /// <summary>Invites a user to a group</summary>
        /// <param name="group">The group to invite to</param>
        /// <param name="roles">A list of roles to invite a person to</param>
        /// <param name="personkey">Key of person to invite</param>
        public void Invite(UUID group, List<UUID> roles, UUID personkey)
        {
            InviteGroupRequestPacket igp = new InviteGroupRequestPacket();

            igp.AgentData = new InviteGroupRequestPacket.AgentDataBlock();
            igp.AgentData.AgentID = Client.Self.AgentID;
            igp.AgentData.SessionID = Client.Self.SessionID;

            igp.GroupData = new InviteGroupRequestPacket.GroupDataBlock();
            igp.GroupData.GroupID = group;

            igp.InviteData = new InviteGroupRequestPacket.InviteDataBlock[roles.Count];

            for (int i = 0; i < roles.Count; i++)
            {
                igp.InviteData[i] = new InviteGroupRequestPacket.InviteDataBlock();
                igp.InviteData[i].InviteeID = personkey;
                igp.InviteData[i].RoleID = roles[i];
            }

            Client.Network.SendPacket(igp);
        }

        /// <summary>Set a group as the current active group</summary>
        /// <param name="id">group ID (UUID)</param>
        public void ActivateGroup(UUID id)
        {
            ActivateGroupPacket activate = new ActivateGroupPacket();
            activate.AgentData.AgentID = Client.Self.AgentID;
            activate.AgentData.SessionID = Client.Self.SessionID;
            activate.AgentData.GroupID = id;

            Client.Network.SendPacket(activate);
        }

        /// <summary>Change the role that determines your active title</summary>
        /// <param name="group">Group ID to use</param>
        /// <param name="role">Role ID to change to</param>
        public void ActivateTitle(UUID group, UUID role)
        {
            GroupTitleUpdatePacket gtu = new GroupTitleUpdatePacket();
            gtu.AgentData.AgentID = Client.Self.AgentID;
            gtu.AgentData.SessionID = Client.Self.SessionID;
            gtu.AgentData.TitleRoleID = role;
            gtu.AgentData.GroupID = group;

            Client.Network.SendPacket(gtu);
        }

        /// <summary>Set this avatar's tier contribution</summary>
        /// <param name="group">Group ID to change tier in</param>
        /// <param name="contribution">amount of tier to donate</param>
        public void SetGroupContribution(UUID group, int contribution)
        {
            SetGroupContributionPacket sgp = new SetGroupContributionPacket();
            sgp.AgentData.AgentID = Client.Self.AgentID;
            sgp.AgentData.SessionID = Client.Self.SessionID;
            sgp.Data.GroupID = group;
            sgp.Data.Contribution = contribution;

            Client.Network.SendPacket(sgp);
        }

        /// <summary>
        /// Save wheather agent wants to accept group notices and list this group in their profile
        /// </summary>
        /// <param name="groupID">Group <see cref="UUID"/></param>
        /// <param name="acceptNotices">Accept notices from this group</param>
        /// <param name="listInProfile">List this group in the profile</param>
        public void SetGroupAcceptNotices(UUID groupID, bool acceptNotices, bool listInProfile)
        {
            SetGroupAcceptNoticesPacket p = new SetGroupAcceptNoticesPacket();
            p.AgentData.AgentID = Client.Self.AgentID;
            p.AgentData.SessionID = Client.Self.SessionID;
            p.Data.GroupID = groupID;
            p.Data.AcceptNotices = acceptNotices;
            p.NewData.ListInProfile = listInProfile;

            Client.Network.SendPacket(p);
        }

        /// <summary>Request to join a group</summary>
        /// <remarks>Subscribe to <code>OnGroupJoined</code> event for confirmation.</remarks>
        /// <param name="id">group ID (UUID) to join.</param>
        public void RequestJoinGroup(UUID id)
        {
            JoinGroupRequestPacket join = new JoinGroupRequestPacket();
            join.AgentData.AgentID = Client.Self.AgentID;
            join.AgentData.SessionID = Client.Self.SessionID;

            join.GroupData.GroupID = id;

            Client.Network.SendPacket(join);
        }

        /// <summary>
        /// Request to create a new group. If the group is successfully
        /// created, L$100 will automatically be deducted
        /// </summary>
        /// <remarks>Subscribe to <code>OnGroupCreated</code> event to receive confirmation.</remarks>
        /// <param name="group">Group struct containing the new group info</param>
        public void RequestCreateGroup(Group group)
        {
            OpenMetaverse.Packets.CreateGroupRequestPacket cgrp = new CreateGroupRequestPacket();
            cgrp.AgentData = new CreateGroupRequestPacket.AgentDataBlock();
            cgrp.AgentData.AgentID = Client.Self.AgentID;
            cgrp.AgentData.SessionID = Client.Self.SessionID;

            cgrp.GroupData = new CreateGroupRequestPacket.GroupDataBlock();
            cgrp.GroupData.AllowPublish = group.AllowPublish;
            cgrp.GroupData.Charter = Utils.StringToBytes(group.Charter);
            cgrp.GroupData.InsigniaID = group.InsigniaID;
            cgrp.GroupData.MaturePublish = group.MaturePublish;
            cgrp.GroupData.MembershipFee = group.MembershipFee;
            cgrp.GroupData.Name = Utils.StringToBytes(group.Name);
            cgrp.GroupData.OpenEnrollment = group.OpenEnrollment;
            cgrp.GroupData.ShowInList = group.ShowInList;

            Client.Network.SendPacket(cgrp);
        }

        /// <summary>Update a group's profile and other information</summary>
        /// <param name="id">Groups ID (UUID) to update.</param>
        /// <param name="group">Group struct to update.</param>
        public void UpdateGroup(UUID id, Group group)
        {
            OpenMetaverse.Packets.UpdateGroupInfoPacket cgrp = new UpdateGroupInfoPacket();
            cgrp.AgentData = new UpdateGroupInfoPacket.AgentDataBlock();
            cgrp.AgentData.AgentID = Client.Self.AgentID;
            cgrp.AgentData.SessionID = Client.Self.SessionID;

            cgrp.GroupData = new UpdateGroupInfoPacket.GroupDataBlock();
            cgrp.GroupData.GroupID = id;
            cgrp.GroupData.AllowPublish = group.AllowPublish;
            cgrp.GroupData.Charter = Utils.StringToBytes(group.Charter);
            cgrp.GroupData.InsigniaID = group.InsigniaID;
            cgrp.GroupData.MaturePublish = group.MaturePublish;
            cgrp.GroupData.MembershipFee = group.MembershipFee;
            cgrp.GroupData.OpenEnrollment = group.OpenEnrollment;
            cgrp.GroupData.ShowInList = group.ShowInList;

            Client.Network.SendPacket(cgrp);
        }

        /// <summary>Eject a user from a group</summary>
        /// <param name="group">Group ID to eject the user from</param>
        /// <param name="member">Avatar's key to eject</param>
        public void EjectUser(UUID group, UUID member)
        {
            OpenMetaverse.Packets.EjectGroupMemberRequestPacket eject = new EjectGroupMemberRequestPacket();
            eject.AgentData = new EjectGroupMemberRequestPacket.AgentDataBlock();
            eject.AgentData.AgentID = Client.Self.AgentID;
            eject.AgentData.SessionID = Client.Self.SessionID;

            eject.GroupData = new EjectGroupMemberRequestPacket.GroupDataBlock();
            eject.GroupData.GroupID = group;

            eject.EjectData = new EjectGroupMemberRequestPacket.EjectDataBlock[1];
            eject.EjectData[0] = new EjectGroupMemberRequestPacket.EjectDataBlock();
            eject.EjectData[0].EjecteeID = member;

            Client.Network.SendPacket(eject);
        }

        /// <summary>Update role information</summary>
        /// <param name="role">Modified role to be updated</param>
        public void UpdateRole(GroupRole role)
        {
            OpenMetaverse.Packets.GroupRoleUpdatePacket gru = new GroupRoleUpdatePacket();
            gru.AgentData.AgentID = Client.Self.AgentID;
            gru.AgentData.SessionID = Client.Self.SessionID;
            gru.AgentData.GroupID = role.GroupID;
            gru.RoleData = new GroupRoleUpdatePacket.RoleDataBlock[1];
            gru.RoleData[0] = new GroupRoleUpdatePacket.RoleDataBlock();
            gru.RoleData[0].Name = Utils.StringToBytes(role.Name);
            gru.RoleData[0].Description = Utils.StringToBytes(role.Description);
            gru.RoleData[0].Powers = (ulong)role.Powers;
            gru.RoleData[0].RoleID = role.ID;
            gru.RoleData[0].Title = Utils.StringToBytes(role.Title);
            gru.RoleData[0].UpdateType = (byte)GroupRoleUpdate.UpdateAll;
            Client.Network.SendPacket(gru);
        }

        /// <summary>Create a new group role</summary>
        /// <param name="group">Group ID to update</param>
        /// <param name="role">Role to create</param>
        public void CreateRole(UUID group, GroupRole role)
        {
            OpenMetaverse.Packets.GroupRoleUpdatePacket gru = new GroupRoleUpdatePacket();
            gru.AgentData.AgentID = Client.Self.AgentID;
            gru.AgentData.SessionID = Client.Self.SessionID;
            gru.AgentData.GroupID = group;
            gru.RoleData = new GroupRoleUpdatePacket.RoleDataBlock[1];
            gru.RoleData[0] = new GroupRoleUpdatePacket.RoleDataBlock();
            gru.RoleData[0].RoleID = UUID.Random();
            gru.RoleData[0].Name = Utils.StringToBytes(role.Name);
            gru.RoleData[0].Description = Utils.StringToBytes(role.Description);
            gru.RoleData[0].Powers = (ulong)role.Powers;
            gru.RoleData[0].Title = Utils.StringToBytes(role.Title);
            gru.RoleData[0].UpdateType = (byte)GroupRoleUpdate.Create;
            Client.Network.SendPacket(gru);
        }

        /// <summary>Delete a group role</summary>
        /// <param name="group">Group ID to update</param>
        /// <param name="roleID">Role to delete</param>
        public void DeleteRole(UUID group, UUID roleID)
        {
            OpenMetaverse.Packets.GroupRoleUpdatePacket gru = new GroupRoleUpdatePacket();
            gru.AgentData.AgentID = Client.Self.AgentID;
            gru.AgentData.SessionID = Client.Self.SessionID;
            gru.AgentData.GroupID = group;
            gru.RoleData = new GroupRoleUpdatePacket.RoleDataBlock[1];
            gru.RoleData[0] = new GroupRoleUpdatePacket.RoleDataBlock();
            gru.RoleData[0].RoleID = roleID;
            gru.RoleData[0].Name = Utils.StringToBytes(string.Empty);
            gru.RoleData[0].Description = Utils.StringToBytes(string.Empty);
            gru.RoleData[0].Powers = 0u;
            gru.RoleData[0].Title = Utils.StringToBytes(string.Empty);
            gru.RoleData[0].UpdateType = (byte)GroupRoleUpdate.Delete;
            Client.Network.SendPacket(gru);
        }

        /// <summary>Remove an avatar from a role</summary>
        /// <param name="group">Group ID to update</param>
        /// <param name="role">Role ID to be removed from</param>
        /// <param name="member">Avatar's Key to remove</param>
        public void RemoveFromRole(UUID group, UUID role, UUID member)
        {
            OpenMetaverse.Packets.GroupRoleChangesPacket grc = new GroupRoleChangesPacket();
            grc.AgentData.AgentID = Client.Self.AgentID;
            grc.AgentData.SessionID = Client.Self.SessionID;
            grc.AgentData.GroupID = group;
            grc.RoleChange = new GroupRoleChangesPacket.RoleChangeBlock[1];
            grc.RoleChange[0] = new GroupRoleChangesPacket.RoleChangeBlock();
            //Add to members and role
            grc.RoleChange[0].MemberID = member;
            grc.RoleChange[0].RoleID = role;
            //1 = Remove From Role TODO: this should be in an enum
            grc.RoleChange[0].Change = 1;
            Client.Network.SendPacket(grc);
        }

        /// <summary>Assign an avatar to a role</summary>
        /// <param name="group">Group ID to update</param>
        /// <param name="role">Role ID to assign to</param>
        /// <param name="member">Avatar's ID to assign to role</param>
        public void AddToRole(UUID group, UUID role, UUID member)
        {
            OpenMetaverse.Packets.GroupRoleChangesPacket grc = new GroupRoleChangesPacket();
            grc.AgentData.AgentID = Client.Self.AgentID;
            grc.AgentData.SessionID = Client.Self.SessionID;
            grc.AgentData.GroupID = group;
            grc.RoleChange = new GroupRoleChangesPacket.RoleChangeBlock[1];
            grc.RoleChange[0] = new GroupRoleChangesPacket.RoleChangeBlock();
            //Add to members and role
            grc.RoleChange[0].MemberID = member;
            grc.RoleChange[0].RoleID = role;
            //0 = Add to Role TODO: this should be in an enum
            grc.RoleChange[0].Change = 0;
            Client.Network.SendPacket(grc);
        }

        /// <summary>Request the group notices list</summary>
        /// <param name="group">Group ID to fetch notices for</param>
        public void RequestGroupNoticesList(UUID group)
        {
            OpenMetaverse.Packets.GroupNoticesListRequestPacket gnl = new GroupNoticesListRequestPacket();
            gnl.AgentData.AgentID = Client.Self.AgentID;
            gnl.AgentData.SessionID = Client.Self.SessionID;
            gnl.Data.GroupID = group;
            Client.Network.SendPacket(gnl);
        }

        /// <summary>Request a group notice by key</summary>
        /// <param name="noticeID">ID of group notice</param>
        public void RequestGroupNotice(UUID noticeID)
        {
            OpenMetaverse.Packets.GroupNoticeRequestPacket gnr = new GroupNoticeRequestPacket();
            gnr.AgentData.AgentID = Client.Self.AgentID;
            gnr.AgentData.SessionID = Client.Self.SessionID;
            gnr.Data.GroupNoticeID = noticeID;
            Client.Network.SendPacket(gnr);
        }
        
        /// <summary>Send out a group notice</summary>
        /// <param name="group">Group ID to update</param>
        /// <param name="notice"><code>GroupNotice</code> structure containing notice data</param>
        public void SendGroupNotice(UUID group, GroupNotice notice)
        {
            Client.Self.InstantMessage(Client.Self.Name, group, notice.Subject + "|" + notice.Message,
                UUID.Zero, InstantMessageDialog.GroupNotice, InstantMessageOnline.Online,
                Vector3.Zero, UUID.Zero, notice.SerializeAttachment());
        }

        /// <summary>Start a group proposal (vote)</summary>
        /// <param name="group">The Group ID to send proposal to</param>
        /// <param name="prop"><code>GroupProposal</code> structure containing the proposal</param>
        public void StartProposal(UUID group, GroupProposal prop)
        {
            StartGroupProposalPacket p = new StartGroupProposalPacket();
            p.AgentData.AgentID = Client.Self.AgentID;
            p.AgentData.SessionID = Client.Self.SessionID;
            p.ProposalData.GroupID = group;
            p.ProposalData.ProposalText = Utils.StringToBytes(prop.VoteText);
            p.ProposalData.Quorum = prop.Quorum;
            p.ProposalData.Majority = prop.Majority;
            p.ProposalData.Duration = prop.Duration;
            Client.Network.SendPacket(p);
        }

        /// <summary>Request to leave a group</summary>
        /// <remarks>Subscribe to <code>OnGroupLeft</code> event to receive confirmation</remarks>
        /// <param name="groupID">The group to leave</param>
        public void LeaveGroup(UUID groupID)
        {
            LeaveGroupRequestPacket p = new LeaveGroupRequestPacket();
            p.AgentData.AgentID = Client.Self.AgentID;
            p.AgentData.SessionID = Client.Self.SessionID;
            p.GroupData.GroupID = groupID;

            Client.Network.SendPacket(p);
        }
#endregion

        #region Packet Handlers
        
        protected void AgentGroupDataUpdateMessageHandler(string capsKey, IMessage message, Simulator simulator)
        {      
            if (m_CurrentGroups != null)
            {
                AgentGroupDataUpdateMessage msg = (AgentGroupDataUpdateMessage)message;

                Dictionary<UUID, Group> currentGroups = new Dictionary<UUID, Group>();
                for (int i = 0; i < msg.GroupDataBlock.Length; i++)
                {
                    Group group = new Group();
                    group.ID = msg.GroupDataBlock[i].GroupID;
                    group.InsigniaID = msg.GroupDataBlock[i].GroupInsigniaID;
                    group.Name = msg.GroupDataBlock[i].GroupName;
                    group.Contribution = msg.GroupDataBlock[i].Contribution;
                    group.AcceptNotices = msg.GroupDataBlock[i].AcceptNotices;
                    group.Powers = msg.GroupDataBlock[i].GroupPowers;
                    group.ListInProfile = msg.NewGroupDataBlock[i].ListInProfile;

                    currentGroups.Add(group.ID, group);

                    lock (GroupName2KeyCache.Dictionary)
                    {
                        if (!GroupName2KeyCache.Dictionary.ContainsKey(group.ID))
                            GroupName2KeyCache.Dictionary.Add(group.ID, group.Name);
                    }
                }
                OnCurrentGroups(new CurrentGroupsEventArgs(currentGroups));
            }
        }

        /// <summary>Process an incoming packet and raise the appropriate events</summary>
        /// <param name="sender">The sender</param>
        /// <param name="e">The EventArgs object containing the packet data</param>
        protected void AgentDropGroupHandler(object sender, PacketReceivedEventArgs e)
        {
            if (m_GroupDropped != null)
            {
                Packet packet = e.Packet;
                OnGroupDropped(new GroupDroppedEventArgs(((AgentDropGroupPacket)packet).AgentData.GroupID));
            }
        }

        protected void AgentDropGroupMessageHandler(string capsKey, IMessage message, Simulator simulator)
        {
            
            if (m_GroupDropped != null)
            {
                AgentDropGroupMessage msg = (AgentDropGroupMessage)message;
                for (int i = 0; i < msg.AgentDataBlock.Length; i++)
                {
                    OnGroupDropped(new GroupDroppedEventArgs(msg.AgentDataBlock[i].GroupID));
                }
            }
        }

        /// <summary>Process an incoming packet and raise the appropriate events</summary>
        /// <param name="sender">The sender</param>
        /// <param name="e">The EventArgs object containing the packet data</param>
        protected void GroupProfileReplyHandler(object sender, PacketReceivedEventArgs e)
        {            
            if (m_GroupProfile != null)
            {
                Packet packet = e.Packet;
                GroupProfileReplyPacket profile = (GroupProfileReplyPacket)packet;
                Group group = new Group();

                group.ID = profile.GroupData.GroupID;
                group.AllowPublish = profile.GroupData.AllowPublish;
                group.Charter = Utils.BytesToString(profile.GroupData.Charter);
                group.FounderID = profile.GroupData.FounderID;
                group.GroupMembershipCount = profile.GroupData.GroupMembershipCount;
                group.GroupRolesCount = profile.GroupData.GroupRolesCount;
                group.InsigniaID = profile.GroupData.InsigniaID;
                group.MaturePublish = profile.GroupData.MaturePublish;
                group.MembershipFee = profile.GroupData.MembershipFee;
                group.MemberTitle = Utils.BytesToString(profile.GroupData.MemberTitle);
                group.Money = profile.GroupData.Money;
                group.Name = Utils.BytesToString(profile.GroupData.Name);
                group.OpenEnrollment = profile.GroupData.OpenEnrollment;
                group.OwnerRole = profile.GroupData.OwnerRole;
                group.Powers = (GroupPowers)profile.GroupData.PowersMask;
                group.ShowInList = profile.GroupData.ShowInList;

                OnGroupProfile(new GroupProfileEventArgs(group));
            }
        }

        /// <summary>Process an incoming packet and raise the appropriate events</summary>
        /// <param name="sender">The sender</param>
        /// <param name="e">The EventArgs object containing the packet data</param>
        protected void GroupNoticesListReplyHandler(object sender, PacketReceivedEventArgs e)
        {
            if (m_GroupNoticesListReply != null)
            {
                Packet packet = e.Packet;
                GroupNoticesListReplyPacket reply = (GroupNoticesListReplyPacket)packet;

                List<GroupNoticesListEntry> notices = new List<GroupNoticesListEntry>();

                foreach (GroupNoticesListReplyPacket.DataBlock entry in reply.Data)
                {
                    GroupNoticesListEntry notice = new GroupNoticesListEntry();
                    notice.FromName = Utils.BytesToString(entry.FromName);
                    notice.Subject = Utils.BytesToString(entry.Subject);
                    notice.NoticeID = entry.NoticeID;
                    notice.Timestamp = entry.Timestamp;
                    notice.HasAttachment = entry.HasAttachment;
                    notice.AssetType = (AssetType)entry.AssetType;

                    notices.Add(notice);
                }

                OnGroupNoticesListReply(new GroupNoticesListReplyEventArgs(reply.AgentData.GroupID, notices));
            }
        }

        /// <summary>Process an incoming packet and raise the appropriate events</summary>
        /// <param name="sender">The sender</param>
        /// <param name="e">The EventArgs object containing the packet data</param>
        protected void GroupTitlesReplyHandler(object sender, PacketReceivedEventArgs e)
        {
            if (m_GroupTitles != null)
            {
                Packet packet = e.Packet;
                GroupTitlesReplyPacket titles = (GroupTitlesReplyPacket)packet;
                Dictionary<UUID, GroupTitle> groupTitleCache = new Dictionary<UUID, GroupTitle>();

                foreach (GroupTitlesReplyPacket.GroupDataBlock block in titles.GroupData)
                {
                    GroupTitle groupTitle = new GroupTitle();

                    groupTitle.GroupID = titles.AgentData.GroupID;
                    groupTitle.RoleID = block.RoleID;
                    groupTitle.Title = Utils.BytesToString(block.Title);
                    groupTitle.Selected = block.Selected;

                    groupTitleCache[block.RoleID] = groupTitle;
                }
                OnGroupTitles(new GroupTitlesReplyEventArgs(titles.AgentData.RequestID, titles.AgentData.GroupID, groupTitleCache));
            }
        }

        /// <summary>Process an incoming packet and raise the appropriate events</summary>
        /// <param name="sender">The sender</param>
        /// <param name="e">The EventArgs object containing the packet data</param>
        protected void GroupMembersHandler(object sender, PacketReceivedEventArgs e)
        {
            Packet packet = e.Packet;
            GroupMembersReplyPacket members = (GroupMembersReplyPacket)packet;
            Dictionary<UUID, GroupMember> groupMemberCache = null;

            lock (GroupMembersRequests)
            {
                // If nothing is registered to receive this RequestID drop the data
                if (GroupMembersRequests.Contains(members.GroupData.RequestID))
                {
                    lock (TempGroupMembers.Dictionary)
                    {
                        if (!TempGroupMembers.TryGetValue(members.GroupData.RequestID, out groupMemberCache))
                        {
                            groupMemberCache = new Dictionary<UUID, GroupMember>();
                            TempGroupMembers[members.GroupData.RequestID] = groupMemberCache;
                        }

                        foreach (GroupMembersReplyPacket.MemberDataBlock block in members.MemberData)
                        {
                            GroupMember groupMember = new GroupMember();

                            groupMember.ID = block.AgentID;
                            groupMember.Contribution = block.Contribution;
                            groupMember.IsOwner = block.IsOwner;
                            groupMember.OnlineStatus = Utils.BytesToString(block.OnlineStatus);
                            groupMember.Powers = (GroupPowers)block.AgentPowers;
                            groupMember.Title = Utils.BytesToString(block.Title);

                            groupMemberCache[block.AgentID] = groupMember;
                        }

                        if (groupMemberCache.Count >= members.GroupData.MemberCount)
                        {
                            GroupMembersRequests.Remove(members.GroupData.RequestID);
                            TempGroupMembers.Remove(members.GroupData.RequestID);
                        }
                    }
                }
            }

            if (m_GroupMembers != null && groupMemberCache != null && groupMemberCache.Count >= members.GroupData.MemberCount)
            {
                OnGroupMembersReply(new GroupMembersReplyEventArgs(members.GroupData.RequestID, members.GroupData.GroupID, groupMemberCache));
            }
        }

        /// <summary>Process an incoming packet and raise the appropriate events</summary>
        /// <param name="sender">The sender</param>
        /// <param name="e">The EventArgs object containing the packet data</param>
        protected void GroupRoleDataReplyHandler(object sender, PacketReceivedEventArgs e)
        {
            Packet packet = e.Packet;
            GroupRoleDataReplyPacket roles = (GroupRoleDataReplyPacket)packet;
            Dictionary<UUID, GroupRole> groupRoleCache = null;

            lock (GroupRolesRequests)
            {
                // If nothing is registered to receive this RequestID drop the data
                if (GroupRolesRequests.Contains(roles.GroupData.RequestID))
                {
                    GroupRolesRequests.Remove(roles.GroupData.RequestID);

                    lock (TempGroupRoles.Dictionary)
                    {
                        if (!TempGroupRoles.TryGetValue(roles.GroupData.RequestID, out groupRoleCache))
                        {
                            groupRoleCache = new Dictionary<UUID, GroupRole>();
                            TempGroupRoles[roles.GroupData.RequestID] = groupRoleCache;
                        }

                        foreach (GroupRoleDataReplyPacket.RoleDataBlock block in roles.RoleData)
                        {
                            GroupRole groupRole = new GroupRole();

                            groupRole.GroupID = roles.GroupData.GroupID;
                            groupRole.ID = block.RoleID;
                            groupRole.Description = Utils.BytesToString(block.Description);
                            groupRole.Name = Utils.BytesToString(block.Name);
                            groupRole.Powers = (GroupPowers)block.Powers;
                            groupRole.Title = Utils.BytesToString(block.Title);

                            groupRoleCache[block.RoleID] = groupRole;
                        }

                        if (groupRoleCache.Count >= roles.GroupData.RoleCount)
                        {
                            GroupRolesRequests.Remove(roles.GroupData.RequestID);
                            TempGroupRoles.Remove(roles.GroupData.RequestID);
                        }
                    }
                }
            }

            if (m_GroupRoles != null && groupRoleCache != null && groupRoleCache.Count >= roles.GroupData.RoleCount)
            {
                OnGroupRoleDataReply(new GroupRolesDataReplyEventArgs(roles.GroupData.RequestID, roles.GroupData.GroupID, groupRoleCache));
            }
        }

        /// <summary>Process an incoming packet and raise the appropriate events</summary>
        /// <param name="sender">The sender</param>
        /// <param name="e">The EventArgs object containing the packet data</param>
        protected void GroupRoleMembersReplyHandler(object sender, PacketReceivedEventArgs e)
        {
            Packet packet = e.Packet;
            GroupRoleMembersReplyPacket members = (GroupRoleMembersReplyPacket)packet;
            List<KeyValuePair<UUID, UUID>> groupRoleMemberCache = null;

            try
            {
                lock (GroupRolesMembersRequests)
                {
                    // If nothing is registered to receive this RequestID drop the data
                    if (GroupRolesMembersRequests.Contains(members.AgentData.RequestID))
                    {
                        lock (TempGroupRolesMembers.Dictionary)
                        {
                            if (!TempGroupRolesMembers.TryGetValue(members.AgentData.RequestID, out groupRoleMemberCache))
                            {
                                groupRoleMemberCache = new List<KeyValuePair<UUID, UUID>>();
                                TempGroupRolesMembers[members.AgentData.RequestID] = groupRoleMemberCache;
                            }

                            foreach (GroupRoleMembersReplyPacket.MemberDataBlock block in members.MemberData)
                            {
                                KeyValuePair<UUID, UUID> rolemember =
                                    new KeyValuePair<UUID, UUID>(block.RoleID, block.MemberID);

                                groupRoleMemberCache.Add(rolemember);
                            }

                            if (groupRoleMemberCache.Count >= members.AgentData.TotalPairs)
                            {
                                GroupRolesMembersRequests.Remove(members.AgentData.RequestID);
                                TempGroupRolesMembers.Remove(members.AgentData.RequestID);
                            }
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                Logger.Log(ex.Message, Helpers.LogLevel.Error, Client, ex);
            }

            if (m_GroupRoleMembers != null && groupRoleMemberCache != null && groupRoleMemberCache.Count >= members.AgentData.TotalPairs)
            {
                OnGroupRoleMembers(new GroupRolesMembersReplyEventArgs(members.AgentData.RequestID, members.AgentData.GroupID, groupRoleMemberCache));
            }
        }

        /// <summary>Process an incoming packet and raise the appropriate events</summary>
        /// <param name="sender">The sender</param>
        /// <param name="e">The EventArgs object containing the packet data</param>
        protected void GroupActiveProposalItemHandler(object sender, PacketReceivedEventArgs e)
        {
            //GroupActiveProposalItemReplyPacket proposal = (GroupActiveProposalItemReplyPacket)packet;

            // TODO: Create a proposal struct to represent the fields in a proposal item
        }

        /// <summary>Process an incoming packet and raise the appropriate events</summary>
        /// <param name="sender">The sender</param>
        /// <param name="e">The EventArgs object containing the packet data</param>
        protected void GroupVoteHistoryItemHandler(object sender, PacketReceivedEventArgs e)
        {
            //GroupVoteHistoryItemReplyPacket history = (GroupVoteHistoryItemReplyPacket)packet;

            // TODO: This was broken in the official viewer when I was last trying to work  on it
        }

        /// <summary>Process an incoming packet and raise the appropriate events</summary>
        /// <param name="sender">The sender</param>
        /// <param name="e">The EventArgs object containing the packet data</param>
        protected void GroupAccountSummaryReplyHandler(object sender, PacketReceivedEventArgs e)
        {
            if (m_GroupAccountSummary != null)
            {
                Packet packet = e.Packet;
                GroupAccountSummaryReplyPacket summary = (GroupAccountSummaryReplyPacket)packet;
                GroupAccountSummary account = new GroupAccountSummary();

                account.Balance = summary.MoneyData.Balance;
                account.CurrentInterval = summary.MoneyData.CurrentInterval;
                account.GroupTaxCurrent = summary.MoneyData.GroupTaxCurrent;
                account.GroupTaxEstimate = summary.MoneyData.GroupTaxEstimate;
                account.IntervalDays = summary.MoneyData.IntervalDays;
                account.LandTaxCurrent = summary.MoneyData.LandTaxCurrent;
                account.LandTaxEstimate = summary.MoneyData.LandTaxEstimate;
                account.LastTaxDate = Utils.BytesToString(summary.MoneyData.LastTaxDate);
                account.LightTaxCurrent = summary.MoneyData.LightTaxCurrent;
                account.LightTaxEstimate = summary.MoneyData.LightTaxEstimate;
                account.NonExemptMembers = summary.MoneyData.NonExemptMembers;
                account.ObjectTaxCurrent = summary.MoneyData.ObjectTaxCurrent;
                account.ObjectTaxEstimate = summary.MoneyData.ObjectTaxEstimate;
                account.ParcelDirFeeCurrent = summary.MoneyData.ParcelDirFeeCurrent;
                account.ParcelDirFeeEstimate = summary.MoneyData.ParcelDirFeeEstimate;
                account.StartDate = Utils.BytesToString(summary.MoneyData.StartDate);
                account.TaxDate = Utils.BytesToString(summary.MoneyData.TaxDate);
                account.TotalCredits = summary.MoneyData.TotalCredits;
                account.TotalDebits = summary.MoneyData.TotalDebits;

                OnGroupAccountSummaryReply(new GroupAccountSummaryReplyEventArgs(summary.AgentData.GroupID, account));
            }
        }

        /// <summary>Process an incoming packet and raise the appropriate events</summary>
        /// <param name="sender">The sender</param>
        /// <param name="e">The EventArgs object containing the packet data</param>
        protected void CreateGroupReplyHandler(object sender, PacketReceivedEventArgs e)
        {
            if (m_GroupCreated != null)
            {
                Packet packet = e.Packet;
                CreateGroupReplyPacket reply = (CreateGroupReplyPacket)packet;

                string message = Utils.BytesToString(reply.ReplyData.Message);

                OnGroupCreatedReply(new GroupCreatedReplyEventArgs(reply.ReplyData.GroupID, reply.ReplyData.Success, message));
            }
        }

        /// <summary>Process an incoming packet and raise the appropriate events</summary>
        /// <param name="sender">The sender</param>
        /// <param name="e">The EventArgs object containing the packet data</param>
        protected void JoinGroupReplyHandler(object sender, PacketReceivedEventArgs e)
        {
            if (m_GroupJoined != null)
            {
                Packet packet = e.Packet;
                JoinGroupReplyPacket reply = (JoinGroupReplyPacket)packet;

                OnGroupJoinedReply(new GroupOperationEventArgs(reply.GroupData.GroupID, reply.GroupData.Success));
            }
        }

        /// <summary>Process an incoming packet and raise the appropriate events</summary>
        /// <param name="sender">The sender</param>
        /// <param name="e">The EventArgs object containing the packet data</param>
        protected void LeaveGroupReplyHandler(object sender, PacketReceivedEventArgs e)
        {
            if (m_GroupLeft != null)
            {
                Packet packet = e.Packet;
                LeaveGroupReplyPacket reply = (LeaveGroupReplyPacket)packet;

                OnGroupLeaveReply(new GroupOperationEventArgs(reply.GroupData.GroupID, reply.GroupData.Success));
            }
        }

        /// <summary>Process an incoming packet and raise the appropriate events</summary>
        /// <param name="sender">The sender</param>
        /// <param name="e">The EventArgs object containing the packet data</param>
        private void UUIDGroupNameReplyHandler(object sender, PacketReceivedEventArgs e)
        {
            Packet packet = e.Packet;
            UUIDGroupNameReplyPacket reply = (UUIDGroupNameReplyPacket)packet;
            UUIDGroupNameReplyPacket.UUIDNameBlockBlock[] blocks = reply.UUIDNameBlock;

            Dictionary<UUID, string> groupNames = new Dictionary<UUID, string>();

            foreach (UUIDGroupNameReplyPacket.UUIDNameBlockBlock block in blocks)
            {
                groupNames.Add(block.ID, Utils.BytesToString(block.GroupName));
                if (!GroupName2KeyCache.ContainsKey(block.ID))
                    GroupName2KeyCache.Add(block.ID, Utils.BytesToString(block.GroupName));
            }

            if (m_GroupNames != null)
            {
                OnGroupNamesReply(new GroupNamesEventArgs(groupNames));
            }
        }

        /// <summary>Process an incoming packet and raise the appropriate events</summary>
        /// <param name="sender">The sender</param>
        /// <param name="e">The EventArgs object containing the packet data</param>
        protected void EjectGroupMemberReplyHandler(object sender, PacketReceivedEventArgs e)
        {
            Packet packet = e.Packet;
            EjectGroupMemberReplyPacket reply = (EjectGroupMemberReplyPacket)packet;

            // TODO: On Success remove the member from the cache(s)

            if (m_GroupMemberEjected != null)
            {
                OnGroupMemberEjected(new GroupOperationEventArgs(reply.GroupData.GroupID, reply.EjectData.Success));
            }
        }        

        #endregion Packet Handlers
    }

    #region EventArgs
    
    /// <summary>Contains the current groups your agent is a member of</summary>
    public class CurrentGroupsEventArgs : EventArgs
    {
        private readonly Dictionary<UUID, Group> m_Groups;

        /// <summary>Get the current groups your agent is a member of</summary>
        public Dictionary<UUID, Group> Groups { get { return m_Groups; } }

        /// <summary>Construct a new instance of the CurrentGroupsEventArgs class</summary>
        /// <param name="groups">The current groups your agent is a member of</param>
        public CurrentGroupsEventArgs(Dictionary<UUID, Group> groups)
        {
            this.m_Groups = groups;
        }
    }
    
    /// <summary>A Dictionary of group names, where the Key is the groups ID and the value is the groups name</summary>
    public class GroupNamesEventArgs : EventArgs
    {
        private readonly Dictionary<UUID, string> m_GroupNames;

        /// <summary>Get the Group Names dictionary</summary>
        public Dictionary<UUID, string> GroupNames { get { return m_GroupNames; } }

        /// <summary>Construct a new instance of the GroupNamesEventArgs class</summary>
        /// <param name="groupNames">The Group names dictionary</param>
        public GroupNamesEventArgs(Dictionary<UUID, string> groupNames)
        {
            this.m_GroupNames = groupNames;
        }
    }

    /// <summary>Represents the members of a group</summary>
    public class GroupMembersReplyEventArgs : EventArgs
    {
        private readonly UUID m_RequestID;
        private readonly UUID m_GroupID;
        private readonly Dictionary<UUID, GroupMember> m_Members;

        /// <summary>Get the ID as returned by the request to correlate
        /// this result set and the request</summary>
        public UUID RequestID { get { return m_RequestID; } }
        /// <summary>Get the ID of the group</summary>
        public UUID GroupID { get { return m_GroupID; } }
        /// <summary>Get the dictionary of members</summary>
        public Dictionary<UUID, GroupMember> Members { get { return m_Members; } }

        /// <summary>
        /// Construct a new instance of the GroupMembersReplyEventArgs class
        /// </summary>
        /// <param name="requestID">The ID of the request</param>
        /// <param name="groupID">The ID of the group</param>
        /// <param name="members">The membership list of the group</param>
        public GroupMembersReplyEventArgs(UUID requestID, UUID groupID, Dictionary<UUID, GroupMember> members)
        {
            this.m_RequestID = requestID;
            this.m_GroupID = groupID;
            this.m_Members = members;
        }
    }
    
    /// <summary>Represents the roles associated with a group</summary>
    public class GroupRolesDataReplyEventArgs : EventArgs
    {
        private readonly UUID m_RequestID;
        private readonly UUID m_GroupID;
        private readonly Dictionary<UUID, GroupRole> m_Roles;

        /// <summary>Get the ID as returned by the request to correlate
        /// this result set and the request</summary>
        public UUID RequestID { get { return m_RequestID; } }
        /// <summary>Get the ID of the group</summary>
        public UUID GroupID { get { return m_GroupID; } }
        /// <summary>Get the dictionary containing the roles</summary>
        public Dictionary<UUID, GroupRole> Roles { get { return m_Roles; } }

        /// <summary>Construct a new instance of the GroupRolesDataReplyEventArgs class</summary>
        /// <param name="requestID">The ID as returned by the request to correlate
        /// this result set and the request</param>
        /// <param name="groupID">The ID of the group</param>
        /// <param name="roles">The dictionary containing the roles</param>
        public GroupRolesDataReplyEventArgs(UUID requestID, UUID groupID, Dictionary<UUID, GroupRole> roles)
        {
            this.m_RequestID = requestID;
            this.m_GroupID = groupID;
            this.m_Roles = roles;
        }
    }

    /// <summary>Represents the Role to Member mappings for a group</summary>
    public class GroupRolesMembersReplyEventArgs : EventArgs
    {
        private readonly UUID m_RequestID;
        private readonly UUID m_GroupID;
        private readonly List<KeyValuePair<UUID, UUID>> m_RolesMembers;

        /// <summary>Get the ID as returned by the request to correlate
        /// this result set and the request</summary>
        public UUID RequestID { get { return m_RequestID; } }
        /// <summary>Get the ID of the group</summary>
        public UUID GroupID { get { return m_GroupID; } }
        /// <summary>Get the member to roles map</summary>
        public List<KeyValuePair<UUID, UUID>> RolesMembers { get { return m_RolesMembers; } }

        /// <summary>Construct a new instance of the GroupRolesMembersReplyEventArgs class</summary>
        /// <param name="requestID">The ID as returned by the request to correlate
        /// this result set and the request</param>
        /// <param name="groupID">The ID of the group</param>
        /// <param name="rolesMembers">The member to roles map</param>
        public GroupRolesMembersReplyEventArgs(UUID requestID, UUID groupID, List<KeyValuePair<UUID, UUID>> rolesMembers)
        {
            this.m_RequestID = requestID;
            this.m_GroupID = groupID;
            this.m_RolesMembers = rolesMembers;
        }
    }

    /// <summary>Represents the titles for a group</summary>
    public class GroupTitlesReplyEventArgs : EventArgs
    {
        private readonly UUID m_RequestID;
        private readonly UUID m_GroupID;
        private readonly Dictionary<UUID, GroupTitle> m_Titles;

        /// <summary>Get the ID as returned by the request to correlate
        /// this result set and the request</summary>
        public UUID RequestID { get { return m_RequestID; } }
        /// <summary>Get the ID of the group</summary>
        public UUID GroupID { get { return m_GroupID; } }
        /// <summary>Get the titles</summary>
        public Dictionary<UUID, GroupTitle> Titles { get { return m_Titles; } }

        /// <summary>Construct a new instance of the GroupTitlesReplyEventArgs class</summary>
        /// <param name="requestID">The ID as returned by the request to correlate
        /// this result set and the request</param>
        /// <param name="groupID">The ID of the group</param>
        /// <param name="titles">The titles</param>
        public GroupTitlesReplyEventArgs(UUID requestID, UUID groupID, Dictionary<UUID, GroupTitle> titles)
        {
            this.m_RequestID = requestID;
            this.m_GroupID = groupID;
            this.m_Titles = titles;
        }
    }

    /// <summary>Represents the summary data for a group</summary>
    public class GroupAccountSummaryReplyEventArgs : EventArgs
    {
        private readonly UUID m_GroupID;
        private readonly GroupAccountSummary m_Summary;

        /// <summary>Get the ID of the group</summary>
        public UUID GroupID { get { return m_GroupID; } }
        /// <summary>Get the summary data</summary>
        public GroupAccountSummary Summary { get { return m_Summary; } }

        /// <summary>Construct a new instance of the GroupAccountSummaryReplyEventArgs class</summary>
        /// <param name="groupID">The ID of the group</param>
        /// <param name="summary">The summary data</param>
        public GroupAccountSummaryReplyEventArgs(UUID groupID, GroupAccountSummary summary)
        {
            this.m_GroupID = groupID;
            this.m_Summary = summary;
        }
    }
    
    /// <summary>A response to a group create request</summary>
    public class GroupCreatedReplyEventArgs : EventArgs
    {
        private readonly UUID m_GroupID;
        private readonly bool m_Success;
        private readonly string m_Message;

        /// <summary>Get the ID of the group</summary>
        public UUID GroupID { get { return m_GroupID; } }
        /// <summary>true of the  group was created successfully</summary>
        public bool Success { get { return m_Success; } }
        /// <summary>A string containing the message</summary>
        public string Message { get { return m_Message; } }

        /// <summary>Construct a new instance of the GroupCreatedReplyEventArgs class</summary>
        /// <param name="groupID">The ID of the group</param>
        /// <param name="success">the success or faulure of the request</param>
        /// <param name="messsage">A string containing additional information</param>
        public GroupCreatedReplyEventArgs(UUID groupID, bool success, string messsage)
        {
            this.m_GroupID = groupID;
            this.m_Success = success;
            this.m_Message = messsage;
        }
    }
    
    /// <summary>Represents a response to a request</summary>
    public class GroupOperationEventArgs : EventArgs
    {
        private readonly UUID m_GroupID;
        private readonly bool m_Success;

        /// <summary>Get the ID of the group</summary>
        public UUID GroupID { get { return m_GroupID; } }
        /// <summary>true of the request was successful</summary>
        public bool Success { get { return m_Success; } }

        /// <summary>Construct a new instance of the GroupOperationEventArgs class</summary>
        /// <param name="groupID">The ID of the group</param>
        /// <param name="success">true of the request was successful</param>
        public GroupOperationEventArgs(UUID groupID, bool success)
        {
            this.m_GroupID = groupID;
            this.m_Success = success;
        }
    }
    
    /// <summary>Represents your agent leaving a group</summary>
    public class GroupDroppedEventArgs : EventArgs
    {
        private readonly UUID m_GroupID;
        /// <summary>Get the ID of the group</summary>
        public UUID GroupID { get { return m_GroupID; } }

        /// <summary>Construct a new instance of the GroupDroppedEventArgs class</summary>
        /// <param name="groupID">The ID of the group</param>
        public GroupDroppedEventArgs(UUID groupID)
        {
            m_GroupID = groupID;
        }
    }

    /// <summary>Represents a list of active group notices</summary>
    public class GroupNoticesListReplyEventArgs : EventArgs
    {
        private readonly UUID m_GroupID;
        private readonly List<GroupNoticesListEntry> m_Notices;

        /// <summary>Get the ID of the group</summary>
        public UUID GroupID { get { return m_GroupID; } }
        /// <summary>Get the notices list</summary>
        public List<GroupNoticesListEntry> Notices { get { return m_Notices; } }

        /// <summary>Construct a new instance of the GroupNoticesListReplyEventArgs class</summary>
        /// <param name="groupID">The ID of the group</param>
        /// <param name="notices">The list containing active notices</param>
        public GroupNoticesListReplyEventArgs(UUID groupID, List<GroupNoticesListEntry> notices)
        {
            m_GroupID = groupID;
            m_Notices = notices;
        }
    }
    
    /// <summary>Represents the profile of a group</summary>
    public class GroupProfileEventArgs : EventArgs
    {
        private readonly Group m_Group;

        /// <summary>Get the group profile</summary>
        public Group Group { get { return m_Group; } }

        /// <summary>Construct a new instance of the GroupProfileEventArgs class</summary>
        /// <param name="group">The group profile</param>
        public GroupProfileEventArgs(Group group)
        {
            this.m_Group = group;
        }
    }

    /// <summary>
    /// Provides notification of a group invitation request sent by another Avatar
    /// </summary>
    /// <remarks>The <see cref="GroupInvitation"/> invitation is raised when another avatar makes an offer for our avatar
    /// to join a group.</remarks>
    public class GroupInvitationEventArgs : EventArgs
    {
        private readonly UUID m_FromAgentID;
        private readonly string m_FromAgentName;
        private readonly string m_Message;
        private readonly Simulator m_Simulator;
     
        /// <summary>The ID of the Avatar sending the group invitation</summary>
        public UUID AgentID { get { return m_FromAgentID; } }
        /// <summary>The name of the Avatar sending the group invitation</summary>
        public string FromName { get { return m_FromAgentName; } }
        /// <summary>A message containing the request information which includes
        /// the name of the group, the groups charter and the fee to join details</summary>
        public string Message { get { return m_Message; } }
        /// <summary>The Simulator</summary>
        public Simulator Simulator { get { return m_Simulator; } }

        /// <summary>Set to true to accept invitation, false to decline</summary>
        public bool Accept { get; set; }

        public GroupInvitationEventArgs(Simulator simulator, UUID agentID, string agentName, string message)
        {
            this.m_Simulator = simulator;
            this.m_FromAgentID = agentID;
            this.m_FromAgentName = agentName;
            this.m_Message = message;
        }
    }

    #endregion
}