public async Task <IActionResult> Feed()
{
var user = await _userManager.GetUserAsync(User);
if (user == null)
{
throw new ApplicationException($"Unable to load user with ID '{_userManager.GetUserId(User)}'.");
}
// Subscriptions must be explicitly loaded
_appDbContext.Entry(user).Collection(x => x.Subs).Load();
// Load all global achievements
_appDbContext.GlobalAchievements.ToList();
// Feed for the current user
FeedViewModel model = new FeedViewModel()
{
CurrentUser = user,
FeedItems = new List <FeedItem>()
};
foreach (Subscription sub in user.Subs)
// Get each user
{
ApplicationUser nextUser = _userManager.Users.Where(x => x.Id == sub.SubscribingToUserID).SingleOrDefault();
if (nextUser != null)
// Only generate feed from valid users
{
FeedItem baseFI = new FeedItem();
baseFI.FromUser = nextUser;
// See if their image URL is cached
baseFI.ImageData = _imageCache.GetImageEmbed(nextUser.Id);
if (baseFI.ImageData == null)
// Image isn't cached yet
{
if (nextUser.ProfileImageURL == null)
// Use Task-It logo
{
_imageCache.SetImage(_hostingEnvironment, nextUser.Id, GetBaseUrl() + "/images/logoattempt.png", true);
baseFI.ImageData = _imageCache.GetImageEmbed(nextUser.Id);
}
else
// Use profile image. If it fails, will fall back to task-it logo
{
_imageCache.SetImage(_hostingEnvironment, nextUser.Id, nextUser.ProfileImageURL, true);
baseFI.ImageData = _imageCache.GetImageEmbed(nextUser.Id);
}
}
// Create feed items for all public tasks, achievements, and posts within the last 7 days
// Posts
_appDbContext.Entry(nextUser).Collection(x => x.Posts).Load();
foreach (Post post in nextUser.Posts)
{
FeedItem postFI = new FeedItem(baseFI);
if (post.PostedTime > DateTime.Now.AddDays(-7))
{
// Add this to feed
postFI.Occured = post.PostedTime;
postFI.ItemType = FeedItemType.Post;
postFI.Text = post.Text;
postFI.Postid = post.PostID;
model.FeedItems.Add(postFI);
}
}
_appDbContext.Entry(nextUser).Collection(x => x.Achivements).Load();
foreach (UserAchievement ua in nextUser.Achivements)
{
FeedItem acFI = new FeedItem(baseFI);
if (ua.AchievedTime > DateTime.Now.AddDays(-7))
{
// Add this to feed
acFI.Occured = (DateTime)ua.AchievedTime;
acFI.ItemType = FeedItemType.Achievement;
acFI.Text = ua.GlobalAchievement.Name;
model.FeedItems.Add(acFI);
}
}
_appDbContext.Entry(nextUser).Collection(x => x.Tasks).Load();
foreach (Models.Task task in nextUser.Tasks)
{
FeedItem taskFI = new FeedItem(baseFI);
if (task.CreatedDate > DateTime.Now.AddDays(-7) && task.IsPrivate == false && task.ApplicationUserId != user.Id)
{
// Add this to feed
taskFI.Occured = (DateTime)task.CreatedDate;
taskFI.ItemType = FeedItemType.Task;
taskFI.Text = task.Summary;
taskFI.Taskid = task.ID;
model.FeedItems.Add(taskFI);
}
}
}
}
// Sort feed items by descending date. Quick, dirty, and effective (makes an extra copy in memory)
// model = model.FeedItems.OrderBy(x => x.Occured).ToList();
model.FeedItems = model.FeedItems.OrderByDescending(x => x.Occured).ToList();
return(View(model));
}
