public async Task AddPhotoComment(PhotoComment comment)
{
logWriter.LogInformation($"{nameof(AddPhotoComment)}({nameof(comment.PhotoId)} = '{comment.PhotoId}', {nameof(comment.UserId)} = '{comment.UserId}', {nameof(comment.Text)} = '{comment.Text}')");
var photo = await photoRepository.GetPhotoById(comment.PhotoId, Guid.Empty);
var scoreDelta = scoreCalculator.GetCommentScore(comment);
var putItemRequest = new PutItemRequest()
{
TableName = tableName,
Item = Mappers.PhotoComment.ToDbItem(comment)
};
try
{
await dynamoDbCore.PutItem(putItemRequest);
await UpdateCommentCountAndScore(photo, 1, scoreDelta);
}
catch (Exception ex)
{
logWriter.LogError(ex, $"{nameof(AddPhotoComment)}({nameof(comment.PhotoId)} = '{comment.PhotoId}', {nameof(comment.UserId)} = '{comment.UserId}', {nameof(comment.Text)} = '{comment.Text}'):\n{ex.ToString()}");
throw;
}
}
public async Task <PhotoModel> CreatePhoto(PhotoModel photo)
{
photo.Score = scoreCalculator.GetPhotoScore(photo);
logWriter.LogInformation($"{nameof(CreatePhoto)}({nameof(photo.Filename)} = '{photo.Filename}')");
try
{
var item = Mappers.PhotoModel.ToDbItem(photo);
var request = new PutItemRequest(tableName, item);
BatchWriteItemRequest hashtagsRequests = GetHashtagsRequests(photo.RawText, photo.Hashtags, photo, HashtagUpdateMode.CreateOnly);
await dynamoDbCore.PutItem(request);
if (hashtagsRequests != null)
{
await dynamoDbCore.BatchWriteItem(hashtagsRequests);
}
logWriter.LogInformation($"Photo record created for '{photo.Filename}'");
return(photo);
}
catch (Exception ex)
{
logWriter.LogError(ex, $"Error in {nameof(CreatePhoto)}(photo.Id = '{photo.PhotoId}'):\n{ex.ToString()}");
throw new Exception("Error when creating photo.", ex);
}
}
private async Task AddLikeRecord(UserId userId, PhotoId photoId)
{
logWriter.LogInformation($"{nameof(AddLikeRecord)}({nameof(userId)} = '{userId}', {nameof(photoId)} = '{photoId}')");
var photo = await photoRepository.GetPhotoById(photoId, Guid.Empty);
var newLikeCount = photo.LikeCount + 1;
var putItemRequest = new PutItemRequest()
{
TableName = tableName,
Item = Mappers.PhotoLike.ToDbItem(new PhotoLikeRecord
{
UserId = userId,
PhotoId = photoId,
CreatedTime = DateTimeOffset.UtcNow
}),
};
try
{
await dynamoDbCore.PutItem(putItemRequest);
await UpdateLikeCount(photo, newLikeCount);
}
catch (Exception ex)
{
logWriter.LogError(ex, $"Error in {nameof(AddLikeRecord)}({nameof(userId)} = '{userId}', {nameof(photoId)} = '{photoId}'):\n{ex.ToString()}");
throw;
}
}
public Task SetSettings(string settingsDomain, SettingsModel settings)
{
PutItemRequest request = new PutItemRequest
{
TableName = tableName,
Item = Mappers.Settings.ToDbItem(settings)
};
return(dynamoDbCore.PutItem(request));
}
public async Task <UserModel> CreateUser(UserModel user)
{
logWriter.LogInformation($"{nameof(CreateUser)}({nameof(user.Id)} = '{user.Id}', {nameof(user.Name)} = '{user.Name}', {nameof(user.Email)} = '{user.Email}')");
try
{
var item = Mappers.UserModel.ToDbItem(user);
var request = new PutItemRequest(tableName, item);
await dynamoDbCore.PutItem(request);
logWriter.LogInformation($"User record created for '{user.Email}'");
return(user);
}
catch (Exception ex)
{
logWriter.LogError(ex, $"Error in {nameof(CreateUser)}({nameof(user.Email)} = '{user.Email}'):\n{ex.ToString()}");
throw new Exception("Error when creating user.", ex);
}
}
private async Task AddLikeRecord(UserId userId, PhotoId photoId)
{
logWriter.LogInformation($"{nameof(AddLikeRecord)}({nameof(userId)} = '{userId}', {nameof(photoId)} = '{photoId}')");
var photo = await photoRepository.GetPhotoById(photoId, Guid.Empty);
if (photo.PhotoIsLikedByCurrentUser)
{
return;
}
PhotoLikeRecord likeRecord = new PhotoLikeRecord
{
UserId = userId,
PhotoId = photoId,
CreatedTime = DateTimeOffset.UtcNow
};
var scoreDelta = scoreCalculator.GetLikeScore(likeRecord);
var putItemRequest = new PutItemRequest()
{
TableName = tableName,
Item = Mappers.PhotoLike.ToDbItem(likeRecord),
};
try
{
await dynamoDbCore.PutItem(putItemRequest);
await UpdateLikeCountAndScore(photo, 1, scoreDelta);
}
catch (Exception ex)
{
logWriter.LogError(ex, $"Error in {nameof(AddLikeRecord)}({nameof(userId)} = '{userId}', {nameof(photoId)} = '{photoId}'):\n{ex.ToString()}");
throw;
}
}