/// <summary>
/// Updating exist message in Messages database table
/// </summary>
/// <param name="message"><see cref="MessageReceiveModel"/></param>
public MessageResponseModel Update(MessageReceiveModel message)
{
using (var context = new DatabaseContext())
{
if (message.Id.HasValue)
{
var messageDb = context.Messages.FirstOrDefault(m => m.Id == message.Id.Value);
if (messageDb == null)
{
throw new Exception("Сообщение не найдено");
}
messageDb.UserMessage = message.UserMassage ?? messageDb.UserMessage;
messageDb.IsReaded = message.IsReaded;
messageDb.File = message.File?.BinaryForm ?? messageDb.File;
messageDb.FileExtension = message.File?.Extension ?? messageDb.FileExtension;
messageDb.FileName = message.File?.FileName ?? messageDb.FileName;
context.SaveChanges();
}
else
{
throw new Exception("Ошибка передачи данных, у модели не установлено свойство Id");
}
//getting updated message from database
var updatedMessage = context.Messages.FirstOrDefault(m => m.Id == message.Id);
return(new MessageResponseModel()
{
Id = updatedMessage.Id,
UserId = updatedMessage.FromUserId,
IsReaded = updatedMessage.IsReaded,
ChatId = updatedMessage.ChatId,
Date = updatedMessage.Date,
UserMassage = updatedMessage.UserMessage,
File = string.IsNullOrEmpty(updatedMessage.FileName) ? null : new FileModel()
{
FileName = updatedMessage.FileName,
Extension = updatedMessage.FileExtension,
BinaryForm = updatedMessage.File
}
});
}
}
/// <summary>
/// Deleting message from Messages database table by Id
/// </summary>
/// <param name="messageModel"><see cref="MessageReceiveModel"/></param>
public void DeleteMessage(MessageReceiveModel messageModel)
{
using (DatabaseContext context = new DatabaseContext())
{
if (messageModel.Id.HasValue)
{
var mess = context.Messages.FirstOrDefault(m => m.Id == messageModel.Id.Value);
if (mess == null)
{
throw new Exception("Сообщение не найдено");
}
context.Messages.Remove(mess);
context.SaveChanges();
}
else
{
throw new Exception("Ошибка передачи данных, у модели не установлено свойство Id");
}
}
}
/// <summary>
/// Adding a new message to Messages database table
/// </summary>
/// <param name="messageModel"><see cref="MessageReceiveModel"/></param>
/// <returns>?<see cref="MessageResponseModel"/></returns>
public MessageResponseModel AddMessage(MessageReceiveModel messageModel)
{
using (DatabaseContext context = new DatabaseContext())
{
context.Messages.Add(new Message()
{
ChatId = messageModel.ChatId,
FromUserId = messageModel.FromUserId,
Date = messageModel.Date,
UserMessage = messageModel.UserMassage,
IsReaded = false,
FileName = messageModel.File?.FileName,
FileExtension = messageModel.File?.Extension,
File = messageModel.File?.BinaryForm
});
context.SaveChanges();
//getting added message from database
var addedMessage = context.Messages.FirstOrDefault(m => m.ChatId == messageModel.ChatId &&
m.FromUserId == messageModel.FromUserId &&
m.UserMessage.Equals(messageModel.UserMassage) &&
m.Date.Equals(messageModel.Date));
return(new MessageResponseModel()
{
Id = addedMessage.Id,
UserId = addedMessage.FromUserId,
ChatId = addedMessage.ChatId,
Date = addedMessage.Date,
IsReaded = addedMessage.IsReaded,
UserMassage = addedMessage.UserMessage,
File = string.IsNullOrEmpty(addedMessage.FileName) ? null : new FileModel()
{
FileName = addedMessage.FileName,
Extension = addedMessage.FileExtension,
BinaryForm = addedMessage.File
}
});
}
}
public OperationResultInfo DeleteMessage(MessageReceiveModel messageModel)
{
try
{
_messageLogic.DeleteMessage(messageModel);
return(new OperationResultInfo()
{
ErrorInfo = string.Empty,
OperationResult = OperationsResults.Successfully,
ToListener = ListenerType.ChatsMessagesDeleteListener
});
}
catch (Exception ex)
{
return(new OperationResultInfo()
{
ErrorInfo = ex.Message,
OperationResult = OperationsResults.Unsuccessfully,
ToListener = ListenerType.ChatsMessagesDeleteListener
});
}
}
public OperationResultInfo UpdateMessage(MessageReceiveModel messageModel)
{
try
{
var messageResponseModel = _messageLogic.Update(messageModel);
return(new OperationResultInfo()
{
ErrorInfo = string.Empty,
OperationResult = OperationsResults.Successfully,
ToListener = ListenerType.ChatsMessagesListener,
JsonData = messageResponseModel
});
}
catch (Exception ex)
{
return(new OperationResultInfo()
{
ErrorInfo = ex.Message,
OperationResult = OperationsResults.Unsuccessfully,
ToListener = ListenerType.ChatsMessagesListener
});
}
}
/// <summary>
/// Synchronization users deleting messages
/// </summary>
public void SynchronizeChatsDeletingMessages(MessageReceiveModel message)
{
var chatUsers = _mainLogic.GetChatUsers(message.ChatId);
var onlineUsers = _connectedClients.Where(ou => ou.Id != message.FromUserId && chatUsers.FirstOrDefault(u => u.Id == ou.Id) != null);
Parallel.ForEach(onlineUsers, (ou) =>
{
_logger.Info($"Sync deleting chat message {message.Id}: {message.UserMassage} for user {ou.Id} by user {message.FromUserId} from chat {message.ChatId}");
var responseJson = _jsonStringSerializer.Serialize(new OperationResultInfo()
{
ErrorInfo = string.Empty,
ToListener = ListenerType.ChatsMessagesDeleteListener,
OperationResult = OperationsResults.Successfully,
JsonData = _jsonStringSerializer.Serialize(new MessageResponseModel()
{
Id = message.Id.Value,
ChatId = message.ChatId
})
});
ou.SendMessage(_encoder.Encryption(responseJson));
//ou.SendMessage(responseJson);
});
}
