public async Task <IEnumerable <Subscription> > GetSubscriptionsAsync(ObjectId userID)
{
try
{
await database.Connect();
List <Subscription> subscriptions = new List <Subscription>();
Domain.UserFriends.UserFriends userFriends = (await database.Get(new EqualityFilter <ObjectId>("userID",
userID))).FirstOrDefault();
if (userFriends == null)
{
throw new ArgumentException("User with such id does not exist");
}
foreach (ObjectId subscriptionID in userFriends.SubscriptionsID)
{
UserInfo subUser = await userService.GetAsync(subscriptionID);
subscriptions.Add(new Subscription()
{
BirthDate = subUser.BirthDate,
Name = subUser.Name + " " + subUser.Surname
});
}
return(subscriptions);
}
catch (Exception ex)
{
exceptionLogger.Log(new ApplicationError(ex), LogLevel.Error, logConfiguration);
throw new DatabaseException("Error occured while getting the subscriptions");
}
}
public async Task AddSubscriberAsync(string token, ObjectId subscriberID)
{
try
{
ObjectId userID = ObjectId.Parse(tokenService.GetTokenClaim(token, "ID"));
await database.Connect().ConfigureAwait(false);
Domain.UserFriends.UserFriends userFriends = (await database.Get(new EqualityFilter <ObjectId>("userID",
userID))).FirstOrDefault();
userFriends.SubscribersID.Add(subscriberID);
await database.Update(userFriends, new[] { "SubscribersID" }).ConfigureAwait(false);
}
catch (Exception ex)
{
exceptionLogger.Log(new ApplicationError(ex), LogLevel.Error, logConfiguration);
throw new DatabaseException("Error occured while adding a new subscriber.");
}
}
public async Task CreateUserFriendsRecord(ObjectId userID)
{
try
{
var userFriends = new Domain.UserFriends.UserFriends()
{
ID = ObjectId.GenerateNewId(),
SubscribersID = new List <ObjectId>(),
SubscriptionsID = new List <ObjectId>(),
UserID = userID
};
await database.Connect().ConfigureAwait(false);
await database.Insert(userFriends).ConfigureAwait(false);
}
catch (Exception ex)
{
exceptionLogger.Log(new ApplicationError(ex), LogLevel.Error, logConfiguration);
throw new DatabaseException("The error occured when creating the user friends object", ex);
}
}