private static async Task SeedEvents(VoteDbContext db, IMapper mapper, UserManager <User> userManager, string basePath)
{
string fullPath = Path.Combine(basePath, VoteConstants.JsonEvents);
var jsonEvents = File.ReadAllText(fullPath);
var eventDtos = JsonConvert.DeserializeObject <EventDto[]>(jsonEvents);
var user1Id = (await userManager.FindByNameAsync("pesho")).Id;
var user2Id = (await userManager.FindByNameAsync("gosho")).Id;
for (int i = 0; i < eventDtos.Length / 2; i++)
{
eventDtos[i].CreatorId = user1Id;
}
for (int i = eventDtos.Length / 2; i < eventDtos.Length; i++)
{
eventDtos[i].CreatorId = user2Id;
}
var eventsData = mapper.Map <List <Event> >(eventDtos);
db.Events.AddRange(eventsData);
db.SaveChanges();
}
private static void SeedQuestions(VoteDbContext db, IMapper mapper, string basePath)
{
string fullPath = Path.Combine(basePath, VoteConstants.JsonQuestions);
var jsonQuestions = File.ReadAllText(fullPath);
var questionDtos = JsonConvert.DeserializeObject <QuestionDto[]>(jsonQuestions);
var questionsData = mapper.Map <List <Question> >(questionDtos);
db.Questions.AddRange(questionsData);
db.SaveChanges();
}
private static void SeedReplies(VoteDbContext db, IMapper mapper, string basePath)
{
string fullPath = Path.Combine(basePath, VoteConstants.JsonReplies);
var jsonReplies = File.ReadAllText(fullPath);
var repliesDtos = JsonConvert.DeserializeObject <ReplyDto[]>(jsonReplies);
var repliesData = mapper.Map <List <Reply> >(repliesDtos);
db.Replies.AddRange(repliesData);
db.SaveChanges();
}
public void InitializeTests()
{
this.mapper = MockAutoMapper.GetAutoMapper();
this.db = MockDbContext.GetTestDb();
this.service = new ParticipantRepliesService(this.db, this.mapper);
var testQuestion = new Question()
{
Id = 1, Content = "First test", EventId = 1
};
db.Questions.Add(testQuestion);
db.SaveChanges();
}
public static VoteDbContext GetTestDb()
{
var options = new DbContextOptionsBuilder <VoteDbContext>()
.UseInMemoryDatabase(Guid.NewGuid().ToString())
.Options;
var db = new VoteDbContext(options);
var activities = new List <Event>()
{
new Event()
{
Id = 1,
Code = "001",
Title = "First",
CreatorId = "ABC",
StartDate = DateTime.Now,
EndDate = DateTime.Now.AddDays(3)
},
new Event()
{
Id = 2,
Code = "002",
Title = "Second",
CreatorId = "ABC",
StartDate = DateTime.Now,
EndDate = DateTime.Now.AddDays(3)
},
new Event()
{
Id = 3,
Code = "003",
Title = "Third",
CreatorId = "ABC",
StartDate = DateTime.Now,
EndDate = DateTime.Now.AddDays(3)
}
};
db.AddRange(activities);
db.SaveChanges();
return(db);
}
public bool Save()
{
return(_context.SaveChanges() >= 0);
}
public void InitializeTests()
{
this.mapper = MockAutoMapper.GetAutoMapper();
this.db = MockDbContext.GetTestDb();
this.service = new ManagerPollsService(this.db, this.mapper);
var testPollQuestion = new PollQuestion()
{
Id = 1, Content = "Are you ready?"
};
var testPollAnswers = new List <PollAnswer>()
{
new PollAnswer()
{
Id = 1, Content = "Yes"
},
new PollAnswer()
{
Id = 2, Content = "No"
}
};
var testPoll = new Poll()
{
Id = 99,
EventId = 1,
PollQuestion = testPollQuestion,
PollAnswers = testPollAnswers,
IsDeleted = false,
IsActive = false
};
var testPollQuestion2 = new PollQuestion()
{
Id = 2, Content = "Are you ready again?"
};
var testPollAnswers2 = new List <PollAnswer>()
{
new PollAnswer()
{
Id = 3, Content = "Yes"
},
new PollAnswer()
{
Id = 4, Content = "No"
}
};
var testPoll2 = new Poll()
{
Id = 100,
EventId = 1,
PollQuestion = testPollQuestion2,
PollAnswers = testPollAnswers2,
IsDeleted = false,
IsActive = false
};
db.Polls.AddRange(testPoll, testPoll2);
db.SaveChanges();
}
// POST: api/Vote
public StatusCodeResult Post([FromBody] VotePost v)
{
int ipId = GetIpId();
// Make sure the call isn't malformed
if (!ModelState.IsValid || v.WinId == v.LoseId)
{
//return BadRequest();
return(StatusCode(400));
}
// Check if the player names are valid
if (!_context.Players.Where(x => x.Id == v.WinId).Any() ||
!_context.Players.Where(x => x.Id == v.LoseId).Any())
{
//return BadRequest();
return(StatusCode(400));
}
// Check if the user has made this vote combination before
bool hasUserMadeThisVote = (from votes in _context.Votes
where votes.IpId == ipId &&
votes.WinId == v.WinId &&
votes.LoseId == v.LoseId
select votes).Any();
bool hasUserMadeOppositeVote = (from votes in _context.Votes
where votes.IpId == ipId &&
votes.WinId == v.LoseId &&
votes.LoseId == v.WinId
select votes).Any();
if (hasUserMadeThisVote || hasUserMadeOppositeVote)
{
//return Forbid();
return(StatusCode(403));
}
// Prepare data
Player playerWin = _context.Players.Where(x => x.Id == v.WinId).SingleOrDefault();
Player playerLose = _context.Players.Where(x => x.Id == v.LoseId).SingleOrDefault();
_context.Update(playerWin);
_context.Update(playerLose);
// Update vote counts
playerWin.Wins++;
playerLose.Losses++;
// Calculate change in player rating
int oldWinRating = playerWin.Shitlo;
int oldLoseRating = playerLose.Shitlo;
int ratingDiff = Math.Abs(oldWinRating - oldLoseRating);
const int MIN_CHANGE = 1; // Minimum rating change for a comparison
const int MAX_CHANGE = 50; // Maximum rating change for a comparison
const int EVEN_CHANGE = 15; // Rating change for an even comparison
const double EULERS_NUMBER = 2.71828; // | 1000 beats 1000 -> +/- 15
const double EXPECTED_SCALING = -0.00264; // k value of 15 e^(-k 500) = 4 | 1500 beats 1000 -> +/- 4
const double UNEXPECTED_SCALING = 0.00240; // k value of 15 e^( k 500) = 50 | 1000 beats 1500 -> +/- 50
double CalcRatingChange(double scaling)
{
return(EVEN_CHANGE * Math.Pow(EULERS_NUMBER, scaling * ratingDiff));
} // Ae^(kx), HUGE thanks to Itheory and Eight Bit for the formula & helping me implement it.
int change = Convert.ToInt32((oldWinRating >= oldLoseRating) ? Math.Max(CalcRatingChange(EXPECTED_SCALING), MIN_CHANGE) // Expected result
: Math.Min(CalcRatingChange(UNEXPECTED_SCALING), MAX_CHANGE)); // Unexpected result
playerWin.Shitlo = oldWinRating + change;
playerLose.Shitlo = oldLoseRating - change;
// Save vote to database
Vote vote = new Vote
{
Date = DateTime.Now,
IpId = ipId,
WinId = v.WinId,
LoseId = v.LoseId
};
_context.Votes.Add(vote);
// Send this vote to subscribed clients
_hub.Clients.All.SendAsync("recentvote", new string[] { playerWin.Name, playerLose.Name });
// Commit changes & return success
_context.SaveChanges(); // TODO: return different status code if this fails
//return Ok();
return(StatusCode(201));
}
