public void Post(int gameId, string user, int?age = null)
{
using (var ctx = new QuizBoxContext())
{
var game = ctx.Game
.Include(g => g.Category)
.Include(g => g.GameQuestion)
.ThenInclude(g => g.Answer).First(g => g.Id == gameId);
int totalNrQuestions = game.GameQuestion.Count();
int nrCorrectAnswers = game.GameQuestion.Count(q => q.Answer.IsCorrect);
var scorePercent = ((double)nrCorrectAnswers / (double)totalNrQuestions) * 100;
ctx.Highscore.Add(new Highscore()
{
Category = game.Category,
ScorePercent = scorePercent,
EndTime = DateTime.Now,
TimeElapsedSeconds = (DateTime.Now - game.Start).Seconds,
UserId = user,
Age = age
}
);
ctx.SaveChanges();
}
}
public QuestionDTO GetQuestion(int gameId, int questionNr)
{
using (var ctx = new QuizBoxContext())
{
var game = ctx.Game
.Include(g => g.GameQuestion)
.ThenInclude(g => g.Question)
.ThenInclude(g => g.Category)
.Include(g => g.GameQuestion)
.ThenInclude(g => g.Question)
.ThenInclude(g => g.Answer)
.FirstOrDefault(g => g.Id == gameId);
var question = game.GameQuestion.FirstOrDefault(q => q.Order == questionNr);
if (question == null)
{
return(null);
}
return(new QuestionDTO(question.Id, gameId, question.Question.Text, game.Category.Name, questionNr,
game.GameQuestion.Count(),
question.Question.Answer.Select(
a => new QuestionChoiceDTO(a.Id, a.Text)).ToList()));
}
}
private void InitializeDatabase(DbInitializer initializer)
{
using (var context = new QuizBoxContext())
{
context.Database.Migrate();
}
initializer.Seed();
}
public void SaveAnswer(int gameId, int questionNr, int selectedAnswer)
{
using (var ctx = new QuizBoxContext())
{
var game = ctx.Game.Include(g => g.GameQuestion).ThenInclude(g => g.Answer).First(g => g.Id == gameId);
var question = game.GameQuestion.First(q => q.Order == questionNr);
question.Answer = ctx.Answer.First(a => a.Id == selectedAnswer);
ctx.SaveChanges();
}
}
public IActionResult Get()
{
using (var ctx = new QuizBoxContext())
{
if (ctx.Category.Any())
{
return(StatusCode(200));
}
}
return(StatusCode(500));
}
public IEnumerable <CategoryDTO> Get()
{
using (var ctx = new QuizBoxContext())
{
return(ctx.Category.Select(
c => new CategoryDTO()
{
Id = c.Id,
Name = c.Name,
Description = c.Description
}).ToList());
}
}
public IEnumerable <ScoreDTO> Get()
{
using (var ctx = new QuizBoxContext())
{
return(ctx.Highscore.Select(
c => new ScoreDTO()
{
Id = c.Id,
User = c.UserId,
CategoryName = c.Category.Name,
CategoryId = c.Category.Id,
ScorePercent = c.ScorePercent,
Duration = c.TimeElapsedSeconds
}).OrderByDescending(c => c.ScorePercent).ThenBy(c => c.Duration).Take(10).ToList());
}
}
public GameDTO StartNewGame(string category, int nrQuestions)
{
int gameId;
using (var ctx = new QuizBoxContext())
{
var selectedCategory = ctx.Category.FirstOrDefault(c => c.Name == category);
var newGame = new Game()
{
Category = selectedCategory,
Start = DateTime.Now,
UserId = "1234567890",
};
var questionsInGame = ctx.Question.Include(c => c.Category).Where(q => q.Category.Id == selectedCategory.Id).AsEnumerable().OrderBy(
q => Guid.NewGuid()).Take(5).ToList();
newGame.GameQuestion = new List <GameQuestion>();
for (int i = 1; i <= questionsInGame.Count(); i++)
{
newGame.GameQuestion.Add(
new GameQuestion()
{
Game = newGame,
Question = questionsInGame[i - 1],
Order = i
});
}
ctx.Game.Add(newGame);
ctx.SaveChanges();
gameId = newGame.Id;
}
using (var ctx = new QuizBoxContext())
{
var game = ctx.Game.First(g => g.Id == gameId);
return(new GameDTO
{
Id = game.Id,
Start = game.Start
});
}
}
public GameResultDTO Finish(int gameId)
{
using (var ctx = new QuizBoxContext())
{
var game = ctx.Game.Include(g => g.GameQuestion).ThenInclude(g => g.Answer).First(g => g.Id == gameId);
int totalNrQuestions = game.GameQuestion.Count();
int nrCorrectAnswers = game.GameQuestion.Count(q => q.Answer.IsCorrect);
var result = new GameResultDTO()
{
GameId = gameId,
CategoryId = game.CategoryId,
TotalNrQuestions = totalNrQuestions,
CorrectNrAnswers = nrCorrectAnswers,
StartTime = game.Start
};
result.ScoreMessage = GetScoreMessage((float)result.CorrectNrAnswers / (float)result.TotalNrQuestions);
return(result);
}
}
public IEnumerable <CategoryDTO> Get()
{
using (var context = new QuizBoxContext())
{
context.Database.Migrate();
}
initializer.Seed();
IEnumerable <CategoryDTO> categories = new List <CategoryDTO>();
using (var ctx = new QuizBoxContext())
{
categories = ctx.Category.Select(
c => new CategoryDTO()
{
Id = c.Id,
Name = c.Name,
Description = c.Description
}).ToList();
return(categories);
}
}
public DbInitializer(QuizBoxContext context)
{
_context = context;
}
