public VisionMedia Merge(VisionMedia visionMedia, IVisionResponse response)
{
var tags = visionMedia.Tags;
tags.AddRange(response.Tags);
var categories = visionMedia.Categories;
categories.AddRange(response.Categories);
var descriptions = visionMedia.Descriptions;
descriptions.AddRange(response.Description);
var json = visionMedia.Json + "\r\n" + response.Json;
return(new VisionMedia
{
Tags = tags,
Categories = categories,
Descriptions = descriptions,
NumberOfFaces = Math.Max(visionMedia.NumberOfFaces ?? 0, response.NumberOfFaces ?? 0), // TODO : Strategy for this
PrimaryColour = visionMedia.PrimaryColour ?? response.PrimaryColour,
BackgroundColour = visionMedia.BackgroundColour ?? response.BackgroundColour,
Json = json
});
}
public async void MediaServiceSaved(IMediaService sender, SaveEventArgs <IMedia> e)
{
var service = new IntelligentMediaService();
foreach (var mediaItem in e.SavedEntities)
{
if (!string.IsNullOrEmpty(mediaItem.GetValue <string>("json")))
{
continue;
}
var visionMedia = new VisionMedia();
foreach (var api in service.VisionApis())
{
try
{
var visionResponse = await api.MakeRequest(mediaItem).ConfigureAwait(false);
visionMedia = Merge(visionMedia, visionResponse);
}
catch (Exception) // TODO : Make this better
{
// Ignore for now
}
}
UpdateMediaItem(mediaItem, visionMedia);
}
}
public void UpdateMediaItem(IMedia mediaItem, VisionMedia visionMedia)
{
// TODO : Configurable which are set and whether to override name
mediaItem.Name = visionMedia.Name;
mediaItem.SetValue("tags",
String.Join(",", visionMedia.Tags
.Select(t => t.Tag)
.Distinct()));
mediaItem.SetValue("description",
visionMedia.Descriptions
.OrderByDescending(d => d.Confidence)
.First().Tag);
mediaItem.SetValue("categories",
String.Join(",", visionMedia.Categories
.Select(t => t.Tag.Replace("_", " ").TrimEnd())));
mediaItem.SetValue("numberOfFaces", visionMedia.NumberOfFaces);
mediaItem.SetValue("primaryColour", visionMedia.PrimaryColour);
mediaItem.SetValue("backgroundColour", visionMedia.BackgroundColour);
mediaItem.SetValue("json", visionMedia.Json);
ApplicationContext.Current.Services.MediaService.Save(mediaItem);
}