public void SaveBarRating(BarData barToRate, int rating)
{
using (var db = new BarsDatabase())
{
var userInDb = db.Users.FirstOrDefault(user => user.Username == "testUser");//Program.defaultUser.Username);
if (userInDb == null)
{
userInDb = new User {
Username = "******"
}
}
; //Program.defaultUser.Username };
var barInDb = db.Bars.FirstOrDefault(bar => bar.BarId == barToRate.BarId);
if (barInDb != null)
{
var barRating = db.UserRatings.Find(barInDb.BarId, userInDb.Username);
if (barRating != null)
{
barRating.Rating = rating;
}
else
{
db.UserRatings.Add(new UsersRatingToBar(barInDb, userInDb, rating));
}
}
else
{
db.UserRatings.Add(new UsersRatingToBar(barToRate, userInDb, rating));
}
db.SaveChanges();
}
}
public bool UserCanVote(string barId, User currentUser, out TimeSpan cooldown)
{
using (var db = new BarsDatabase())
{
var userInDb = db.Users.FirstOrDefault(user => user.Username == currentUser.Username);
if (userInDb == null || barId == null)
{
cooldown = TimeSpan.Zero;
return(false);
}
var timeNow = DateTime.Now;
if (!TimeSpan.TryParse(ratingCooldownPeriod, out var cooldownTimeSpan))
{
var badCooldown = ratingCooldownPeriod ?? "null";
throw new InvalidOperationException(string.Format("Cofiguration file not present or incorrect value of variable {0} : {1} ",
nameof(ratingCooldownPeriod), badCooldown));
}
var cooldownTime = timeNow.Subtract(cooldownTimeSpan);
var recentRatingByUser = db.UserRatings.FirstOrDefault(x => x.BarId == barId &&
x.Username == currentUser.Username &&
x.RatingDate.CompareTo(cooldownTime) >= 0);
cooldown = recentRatingByUser?.RatingDate.Add(cooldownTimeSpan).Subtract(timeNow) ?? TimeSpan.Zero;
return(recentRatingByUser == null);
}
}
public bool LogIn(User userAttemptingToLogin)
{
using (var db = new BarsDatabase())
{
return(db.Users.FirstOrDefault(user =>
user.Username == userAttemptingToLogin.Username &&
user.Password == userAttemptingToLogin.Password) != null);
}
}
public float GetBarRating(string barId)
{
float rating;
using (var db = new BarsDatabase())
{
rating = db.Bars.FirstOrDefault(dbBar => dbBar.BarId == barId).AvgRating;
}
return(rating);
}
public List <BarData> GetAllBarData(IEnumerable <string> localBarIds)
{
var localBars = new List <BarData>();
using (var db = new BarsDatabase())
{
localBars.AddRange(localBarIds.Select(localBarId => db.Bars.FirstOrDefault(dbBar => dbBar.BarId == localBarId)).Where(localBar => localBar != null));
}
return(localBars);
}
public List <int> GetBarRatings(BarData bar)
{
List <int> list;
using (var db = new BarsDatabase())
{
list = db.UserRatings.Where(x => x.BarId == bar.BarId).Select(x => x.Rating).ToList();
}
return(list);
}
public List <BarData> GetAllBarData(List <BarData> localBars)
{
//if (localBars == null)
//{
// return null;
//}
using (var db = new BarsDatabase())
{
localBars.ForEach(bar => bar.Ratings = db.UserRatings.Where(x => x.BarId == bar.BarId).Select(x => x.Rating).ToList());
}
return(localBars);
}
public bool Register(User currentUser)
{
using (var db = new BarsDatabase())
{
if (db.Database.SqlQuery <int>("SELECT Count(Username) FROM dbo.[User] WHERE Username = @p0", currentUser.Username).FirstOrDefault() > 0)
{
return(false);
}
db.Users.Add(currentUser);
db.SaveChanges();
return(true);
}
}
public void SaveBarRating(string barId, User currentUser, int rating)
{
using (var db = new BarsDatabase())
{
if (!UserCanVote(barId, currentUser, out var cooldown))
{
return;
}
var barInDb = db.Bars.FirstOrDefault(bar => bar.BarId == barId);
if (barInDb == null)
{
Console.Write("This should not happen. Asking to rate non-existent bar");
return;
}
db.UserRatings.Add(new UsersRatingToBar(barInDb, currentUser, rating, DateTime.Now));
db.SaveChanges();
var avgRating = (float)db.UserRatings.Where(x => x.BarId == barInDb.BarId).Select(x => x.Rating)
.DefaultIfEmpty().Average();
barInDb.AvgRating = avgRating;
db.SaveChanges();
}
}
public void SaveBars(List <BarData> barsToSave)
{
using (var db = new BarsDatabase())
{
barsToSave.ForEach(barToSave =>
{
if (barToSave.BarId.Length > 50)
{
barToSave.BarId = new string(barToSave.BarId.Take(50).ToArray());
}
if (barToSave.Title.Length > 50)
{
barToSave.Title = new string(barToSave.Title.Take(50).ToArray());
}
if (db.Bars.FirstOrDefault(barInDb => barInDb.BarId == barToSave.BarId) != null)
{
return;
}
db.Bars.Add(barToSave);
db.SaveChanges();
});
}
}
