public async Task <Result <IEnumerable <AdDTO> > > GetAds(string userId)
{
var user = await _context.Users.Where(x => x.Id == Guid.Parse(userId))
.Include(x => x.SkillKnns)
.Include("SkillKnns.GlobalString")
.FirstOrDefaultAsync();
if (user == null)
{
return(Result <IEnumerable <AdDTO> > .CreateFailed(
HttpStatusCode.NotFound, "User not found"));
}
var ads = await _context.Ads
.Where(x => x.Owner != user && !x.UserAds.Select(y => y.User).Contains(user))
.Include(x => x.UserAds)
.Include("UserAds.User")
.Include(x => x.AdKnns)
.Include(x => x.Owner)
.Include("AdKnns.GlobalString")
.ToListAsync();
double distance;
var topDistances = new List <Tuple <double, Ad> >();
foreach (var ad in ads)
{
distance = _knnService.GetDistance(ad, user);
if (topDistances.Count < 10)
{
topDistances.Add(new Tuple <double, Ad>(distance, ad));
}
else
{
var max = topDistances.Max(x => x.Item1);
var maxItem = topDistances.Where(x => x.Item1 == max).FirstOrDefault();
if (max > distance)
{
topDistances[topDistances.IndexOf(maxItem)] = new Tuple <double, Ad>(distance, ad);
}
}
}
var result = topDistances.Select(x => x.Item2);
return(Result <IEnumerable <AdDTO> > .CreateSuccessful(AdDTO.ToAdDTOList(result)));
}
public async Task <Result <IEnumerable <AdDTO> > > GetMyAds(string userId)
{
var user = await _context.Users.Where(x => x.Id == Guid.Parse(userId))
.Include(x => x.SkillKnns)
.Include("SkillKnns.GlobalString")
.FirstOrDefaultAsync();
if (user == null)
{
return(Result <IEnumerable <AdDTO> > .CreateFailed(
HttpStatusCode.NotFound, "User not found"));
}
var ads = await _context.Ads
.Where(x => x.Owner == user)
.Include(x => x.UserAds)
.Include("UserAds.User")
.Include(x => x.AdKnns)
.Include(x => x.Owner)
.Include("AdKnns.GlobalString")
.ToListAsync();
return(Result <IEnumerable <AdDTO> > .CreateSuccessful(AdDTO.ToAdDTOList(ads)));
}
