public async Task <MatchIds> FindMatchAsync()
{
int max = await Context.Ranks.MaxAsync(a => a.Elo).ConfigureAwait(false);
int min = await Context.Ranks.MinAsync(a => a.Elo).ConfigureAwait(false);
Random seed = new Random();
IList <Rank> superSet = null;
int currentMax = max;
while (currentMax != 0 && (superSet == null || superSet.Count < 2))
{
currentMax = (superSet == null) ? max : max / 2;
FindBoundaries(min, currentMax, seed, out int lowerBound, out int higherBound);
superSet = Context.Ranks.OrderBy(e => e.Elo).Where(e => e.Elo <higherBound && e.Elo> lowerBound).ToList();
}
if (superSet == null || superSet.Count < 2)
{
throw new ServiceException("Couldn't find a match", ResponseCode.MatchDispersion);
}
var ids = new MatchIds()
{
Left = 0, Right = 0
};
ids.Left = seed.Next(0, superSet.Count);
ids.Right = (ids.Left == 0) ? 1 : ids.Left - 1;
return(ids);
}
public async Task ShouldFindMatch_WhenCatsAreAvailable()
{
using (var dbContext = DbContextFixture.GetDbContext())
{
IMatchService service = new MatchService(dbContext, new RankingService(RankingValues.Limit, RankingValues.EvolutionCoef));
ICatService catService = new CatService(new HttpService(), dbContext, IConfigMock.GetCatsMock());
await catService.InjectCats().ConfigureAwait(false); // Prepare cats
MatchIds matchIds = await service.FindMatchAsync().ConfigureAwait(false);
Assert.NotEqual(0, matchIds.Left);
Assert.NotEqual(0, matchIds.Right);
}
}
public async Task <IActionResult> GetMatch()
{
MatchIds matchIds = await MatchService.FindMatchAsync().ConfigureAwait(false);
var options = new RequestOptions()
{
IncludeMatchHistory = false
};
Cat left = await CatService.Get(matchIds.Left, options).ConfigureAwait(false);
Cat right = await CatService.Get(matchIds.Right, options).ConfigureAwait(false);
MatchFoundResponse matchFound = new MatchFoundResponse()
{
Left = left.ToApiModel(), Right = right.ToApiModel()
};
var response = new CommonResponse <MatchFoundResponse>(ResponseCode.Success, "Ok", matchFound);
return(Ok(response));
}
public Matches(MatchListBson bson)
{
MatchIds.AddRange(bson.Matches);
Id = bson.Id;
}
