public async Task <FetchGamePictureResponse> FetchPictureForGameAsync(int id, CancellationToken token)
{
var endpoint = configurationProvider.GetConnectionStringById(connectionStringKey);
endpoint += $"?appId={id}";
var gatewayResponse = await webGateway.GetResponseFromEndpoint <ResponseDao>(endpoint, token);
if (gatewayResponse.ResultCode != WebRequestResponseResultCode.Succeeded)
{
return(FetchGamePictureResponse.FetchFailed(gatewayResponse.ResultMessage));
}
if (!gatewayResponse.Succeeded)
{
return(FetchGamePictureResponse.NoPicture(id));
}
var response = gatewayResponse.Value;
if (response.IsValid)
{
var imageString = response.Image.TrimStart('b', '\'');
imageString = imageString.TrimEnd('\'');
var imageBytes = Convert.FromBase64String(imageString);
return(FetchGamePictureResponse.ContainsPicture(id, imageBytes));
}
return(FetchGamePictureResponse.NoPicture(id));
}
private async Task <FetchGamePictureResponse> FetchAndUpdatePictureCache(int appId, CancellationToken token)
{
var pictureFetchResponse = await pictureFetcher.FetchPictureForGameAsync(appId, token);
if (!pictureFetchResponse.Successful)
{
return(FetchGamePictureResponse.FetchFailed(pictureFetchResponse.Message));
}
var imageAsBase64String = Convert.ToBase64String(pictureFetchResponse.Image);
var cacheGamePicture = CachedGamePicture.Create(imageAsBase64String, appId);
await storageProvider.Update(storageKey, appId.ToString(), cacheGamePicture);
var response = FetchGamePictureResponse.ContainsPicture(appId, pictureFetchResponse.Image);
return(response);
}
public async Task <FetchGamePictureResponse> FetchPictureForGameAsync(int appId, CancellationToken token)
{
var localStorageResponse = await storageProvider.Get(storageKey, appId.ToString());
if (!localStorageResponse.Succeeded)
{
return(await FetchAndUpdatePictureCache(appId, token));
}
var gamePicture = (CachedGamePicture)localStorageResponse.Value;
var localCacheCheck = await cacheChecker.IsCacheOutOfDate(gamePicture.TimeCachedUtc, appId, token);
if (localCacheCheck.IsOutOfDate)
{
return(await FetchAndUpdatePictureCache(appId, token));
}
var pictureAsBytes = Convert.FromBase64String(gamePicture.Base64EncodedImage);
return(FetchGamePictureResponse.ContainsPicture(appId, pictureAsBytes));
}