/// <summary>
/// Handles operation <see cref="Chat"/>: Chat from one item and send the chat message to another clients using event <see cref="ItemChat"/>
/// </summary>
/// <param name="peer">The client peer</param>
/// <param name="request">The request</param>
/// <returns>Null or an <see cref="OperationResponse"/>with error code <see cref="ErrorCode.ItemNotFound"/></returns>
public OperationResponse OperationChat(PeerBase peer, OperationRequest request, SendParameters sendParameters)
{
var operation = new Chat(peer.Protocol, request);
if (!operation.IsValid)
{
return new OperationResponse(request.OperationCode) { ReturnCode = (int)ReturnCode.InvalidOperationParameter, DebugMessage = operation.GetErrorMessage() };
}
Item item;
if (false == operation.ItemType.HasValue || string.IsNullOrEmpty(operation.ItemId))
{
item = this.Avatar;
operation.ItemId = item.Id;
operation.ItemType = item.Type;
}
else if (this.TryGetItem(operation.ItemType.Value, operation.ItemId, out item) == false)
{
return operation.GetOperationResponse((int)ReturnCode.ItemNotFound, "ItemNotFound");
}
return this.ItemOperationChat((MmoItem)item, operation, sendParameters);
}
/// <summary>
/// The Chat Operation
/// </summary>
/// <param name="item">The mmo item</param>
/// <param name="operation">The operation</param>
/// <returns>error code OK</returns>
private OperationResponse ItemOperationChat(MmoItem item, Chat operation, SendParameters sendParameters)
{
MethodReturnValue result = this.CheckAccess(item);
if (result)
{
var eventInstance = new ItemChat
{
ItemId = item.Id,
ItemType = item.Type,
Group = operation.Group,
Message = operation.Message
};
EventData eventData = new EventData((byte)EventCode.ItemChat, eventInstance);
sendParameters.ChannelId = Settings.ItemEventChannel;
var message = new ItemEventMessage(item, eventData, sendParameters);
item.EventChannel.Publish(message);
operation.OnComplete();
return null;
}
return operation.GetOperationResponse(result);
}