/// <summary>
/// This method will fetch all information about direct messaging entry.
/// </summary>
/// <param name="userId">The id of the requesting user</param>
/// <param name="firstParticipantId">The user id of the first participant</param>
/// <param name="secondParticipantId">The user id of the second participant</param>
/// <returns>An either monad</returns>
public Either <DirectMessaging, Error> Get(long userId, long firstParticipantId, long secondParticipantId)
{
try
{
if (userId != firstParticipantId && userId != secondParticipantId)
{
return(new Failure <DirectMessaging, Error>(DirectMessagingErrors.DirectMessagingNotFound()));
}
var directMessaging = _burstChatContext
.DirectMessaging
.Include(dm => dm.FirstParticipantUser)
.Include(dm => dm.SecondParticipantUser)
.FirstOrDefault(dm => (dm.FirstParticipantUserId == firstParticipantId && dm.SecondParticipantUserId == secondParticipantId) ||
(dm.FirstParticipantUserId == secondParticipantId && dm.SecondParticipantUserId == firstParticipantId));
return(directMessaging is not null
? new Success <DirectMessaging, Error>(directMessaging)
: new Failure <DirectMessaging, Error>(DirectMessagingErrors.DirectMessagesNotFound()));
}
catch (Exception e)
{
_logger.LogError(e.Message);
return(new Failure <DirectMessaging, Error>(SystemErrors.Exception()));
}
}
/// <summary>
/// This method will delete a message from the direct messaging entry.
/// </summary>
/// <param name="userId">The id of the requesting user</param>
/// <param name="directMessagingId">The id of the direct messaging entry</param>
/// <param name="messageId">The id of the message to be deleted</param>
/// <returns>An either monad</returns>
public Either <Message, Error> DeleteMessage(long userId, long directMessagingId, long messageId)
{
try
{
return(Get(userId, directMessagingId).Bind <Message>(_ =>
{
var directMessaging = _burstChatContext
.DirectMessaging
.Include(dm => dm.Messages.Where(m => m.Id == messageId))
.First(dm => dm.Id == directMessagingId);
if (!directMessaging.Messages.Any())
{
return new Failure <Message, Error>(DirectMessagingErrors.DirectMessagesNotFound());
}
var message = directMessaging.Messages.First() !;
directMessaging.Messages.Remove(message);
_burstChatContext.SaveChanges();
return new Success <Message, Error>(message);
}));
}
catch (Exception e)
{
_logger.LogError(e.Message);
return(new Failure <Message, Error>(SystemErrors.Exception()));
}
}
/// <summary>
/// This method will add a new message to a direct messaging entry.
/// </summary>
/// <param name="userId">The id of the requesting user</param>
/// <param name="directMessagingId">The id of the target direct messaging entry</param>
/// <param name="message">The message instance that will be used for the insertion</param>
/// <returns>An either monad</returns>
public Either <Message, Error> InsertMessage(long userId, long directMessagingId, Message message)
{
try
{
return(Get(userId, directMessagingId).Bind <Message>(directMessaging =>
{
var user = _burstChatContext
.Users
.FirstOrDefault(u => u.Id == userId);
if (user is null || message is null)
{
return new Failure <Message, Error>(DirectMessagingErrors.DirectMessagesNotFound());
}
var newMessage = new Message
{
User = user,
Links = message.GetLinksFromContent(),
Content = message.RemoveLinksFromContent(),
Edited = false,
DatePosted = message.DatePosted
};
directMessaging.Messages.Add(newMessage);
_burstChatContext.SaveChanges();
return new Success <Message, Error>(newMessage);
}));
}
catch (Exception e)
{
_logger.LogError(e.Message);
return(new Failure <Message, Error>(SystemErrors.Exception()));
}
}
/// <summary>
/// This method will fetch all information about direct messaging entry.
/// </summary>
/// <param name="userId">The id of the requesting user</param>
/// <param name="directMessagingId">The id of the direct messages</param>
/// <returns>An either monad</returns>
public Either <DirectMessaging, Error> Get(long userId, long directMessagingId)
{
try
{
var directMessaging = _burstChatContext
.DirectMessaging
.FirstOrDefault(dm => dm.Id == directMessagingId &&
(dm.FirstParticipantUserId == userId ||
dm.SecondParticipantUserId == userId));
return(directMessaging is not null
? new Success <DirectMessaging, Error>(directMessaging)
: new Failure <DirectMessaging, Error>(DirectMessagingErrors.DirectMessagesNotFound()));
}
catch (Exception e)
{
_logger.LogError(e.Message);
return(new Failure <DirectMessaging, Error>(SystemErrors.Exception()));
}
}