public Task <object> GeneratePreviewAsync(DocumentDetailDto model, long userId, CancellationToken token)
{
var result = Enumerable.Range(0, model.Pages).Select(i =>
{
var uri = _blobProvider.GetPreviewImageLink(model.Document.Id, i);
var effect = ImageProperties.BlurEffect.None;
if (!model.IsPurchased)
{
effect = ImageProperties.BlurEffect.All;
if (i == 0 || i == 1)
{
effect = ImageProperties.BlurEffect.None;
}
}
var properties = new ImageProperties(uri, effect);
var hash = _binarySerializer.Serialize(properties);
return(_linkGenerator.GetUriByRouteValues(_httpContextAccessor.HttpContext, "imageUrl", new
{
hash = Base64UrlTextEncoder.Encode(hash)
}));
});
return(Task.FromResult <object>(result));
}
public async Task <object> GeneratePreviewAsync(DocumentDetailDto model, long userId, CancellationToken token)
{
string locator;
if (model.IsPurchased)
{
locator = await _videoService.BuildUserStreamingLocatorAsync(model.Document.Id, userId, token);
}
else
{
locator = await _videoService.GetShortStreamingUrlAsync(model.Document.Id, token);
}
var uri = _urlBuilder.BuildDocumentThumbnailEndpoint(model.Document.Id);
return(new { locator, poster = uri });
}
public DocumentPreviewResponse(DocumentDetailDto details, object preview, string content)
{
Details = details;
Content = content;
Preview = preview;
}