public async Task <IEnumerable <SkaterStatisticsModel> > Handle(StatisticLeaderQuery request, CancellationToken cancellationToken)
{
var baseQuery = request.StatisticType.Equals(StatisticType.BestAverageSpeed) ?
context.SkateLogEntries.Where(x => x.ApplicationUser.HasPaid && x.AverageSpeedInMph > 0 && x.Duration >= 1800) :
context.SkateLogEntries.Where(x => x.ApplicationUser.HasPaid);
var allSkaterSummaries = await baseQuery.GroupBy(x => x.ApplicationUserId)
.Select(x => new
{
ApplicationUserId = x.Key,
BestAverageSpeed = x.Max(x => x.AverageSpeedInMph),
BestTopSpeed = x.Max(x => x.TopSpeedInMph),
GreatestClimb = x.Max(x => x.ElevationGainInFeet),
SkybornSkater = x.Max(x => x.HighestElevationInFeet),
LongestJourney = x.Max(x => x.DistanceInMiles),
ShortestJourney = x.Min(x => x.DistanceInMiles),
LongestTotalDistance = x.Sum(x => x.DistanceInMiles),
MostJourneys = x.Count()
})
.ToListAsync();
var skaterIds = allSkaterSummaries.Select(x => x.ApplicationUserId).ToList();
var skaters = await context.Users.Where(x => skaterIds.Contains(x.Id)).ToListAsync();
var skaterSummaries = new List <Tuple <string, string> >();
switch (request.StatisticType)
{
case StatisticType.BestAverageSpeed:
skaterSummaries.AddRange(allSkaterSummaries.Where(x => x.BestAverageSpeed > 0)
.OrderByDescending(x => x.BestAverageSpeed)
.Select(x => new Tuple <string, string>(x.ApplicationUserId, $"{x.BestAverageSpeed:F2} MPH")));
break;
case StatisticType.BestTopSpeed:
skaterSummaries.AddRange(allSkaterSummaries.Where(x => x.BestTopSpeed > 0)
.OrderByDescending(x => x.BestTopSpeed)
.Select(x => new Tuple <string, string>(x.ApplicationUserId, $"{x.BestTopSpeed:F2} MPH")));
break;
case StatisticType.LongestDistance:
skaterSummaries.AddRange(allSkaterSummaries.Where(x => x.LongestJourney > 0)
.OrderByDescending(x => x.LongestJourney)
.Select(x => new Tuple <string, string>(x.ApplicationUserId, GetDistanceString(x.LongestJourney))));
break;
case StatisticType.ShortestDistance:
skaterSummaries.AddRange(allSkaterSummaries.Where(x => x.ShortestJourney > 0)
.OrderBy(x => x.ShortestJourney)
.Select(x => new Tuple <string, string>(x.ApplicationUserId, GetDistanceString(x.ShortestJourney))));
break;
case StatisticType.GreatestElevationGain:
skaterSummaries.AddRange(allSkaterSummaries.Where(x => x.GreatestClimb > 0)
.OrderByDescending(x => x.GreatestClimb)
.Select(x => new Tuple <string, string>(x.ApplicationUserId, $"{x.GreatestClimb:F2} Feet")));
break;
case StatisticType.HighestElevation:
skaterSummaries.AddRange(allSkaterSummaries.Where(x => x.SkybornSkater > 0)
.OrderByDescending(x => x.SkybornSkater)
.Select(x => new Tuple <string, string>(x.ApplicationUserId, $"{x.SkybornSkater:F2} Feet")));
break;
case StatisticType.LongestTotalJourney:
skaterSummaries.AddRange(allSkaterSummaries.Where(x => x.LongestTotalDistance > 0)
.OrderByDescending(x => x.LongestTotalDistance)
.Select(x => new Tuple <string, string>(x.ApplicationUserId, GetDistanceString(x.LongestTotalDistance))));
break;
case StatisticType.MostJourneys:
skaterSummaries.AddRange(allSkaterSummaries.Where(x => x.MostJourneys > 0)
.OrderByDescending(x => x.MostJourneys)
.Select(x => new Tuple <string, string>(x.ApplicationUserId, $"{x.MostJourneys:F0} Journeys")));
break;
}
return((from skaterSummary in skaterSummaries
join skater in skaters on skaterSummary.Item1 equals skater.Id
where skater.HasPaid
select new SkaterStatisticsModel
{
SkaterName = skater.SkaterName,
SkaterProfile = GetProfileImage(skater),
Statistic = skaterSummary.Item2
}).ToList());
}
public override async Task <PageViewModel <StatisticLeadersViewModel> > Build()
{
var model = await base.Build();
model.PageTitle = "Event Statistics";
model.DisplayPageTitle = "Event Statistics";
var query = new StatisticLeaderQuery {
StatisticType = statisticType
};
model.Content.Skaters = (await mediator.Send(query)).ToList();
switch (statisticType)
{
case StatisticType.BestAverageSpeed:
model.PageTitle = "Skaters with the Best Average Speed";
model.DisplayPageTitle = "Skaters with the Best Average Speed";
model.IntroductoryText = "Skaters must have submitted a skating work out with a duration of at least 30 minutes in order to qualify for this leaderboard.";
model.Content.StatisticTitle = "Average Speed";
break;
case StatisticType.BestTopSpeed:
model.PageTitle = "Skaters with the Best Top Speed";
model.DisplayPageTitle = "Skaters with the Best Top Speed";
model.Content.StatisticTitle = "Top Speed";
break;
case StatisticType.LongestDistance:
model.PageTitle = "Skaters with the Longest Journeys";
model.DisplayPageTitle = "Skaters with the Longest Journeys";
model.IntroductoryText = "Skaters are shown here with the longest distance achieved in a single skate journey.";
model.Content.StatisticTitle = "Distance";
break;
case StatisticType.ShortestDistance:
model.PageTitle = "Skaters with the Shortest Journeys";
model.DisplayPageTitle = "Skaters with the Shortest Journeys";
model.IntroductoryText = "Skaters are shown here with the shortest distance achieved in a single skate journey.";
model.Content.StatisticTitle = "Distance";
break;
case StatisticType.GreatestElevationGain:
model.PageTitle = "Skaters with the Greatest Elevation Gain";
model.DisplayPageTitle = "Skaters with the Greatest Elevation Gain";
model.IntroductoryText = "Skaters are shown here with the greatest elevation gain achieved in a single skate journey.";
model.Content.StatisticTitle = "Elevation";
break;
case StatisticType.HighestElevation:
model.PageTitle = "Skaters with the Highest Elevation";
model.DisplayPageTitle = "Skaters with the Highest Elevation";
model.IntroductoryText = "Skaters are shown here with the highest elevation visited across all journeys.";
model.Content.StatisticTitle = "Elevation";
break;
case StatisticType.LongestTotalJourney:
model.PageTitle = "Skaters with Longest Total Journey";
model.DisplayPageTitle = "Skaters with Longest Total Journey";
model.IntroductoryText = "Skaters are shown here with the greatest cumulative distance across all their journeys.";
model.Content.StatisticTitle = "Distance";
break;
case StatisticType.MostJourneys:
model.PageTitle = "Skaters with Most Journeys";
model.DisplayPageTitle = "Skaters with Most Journeys";
model.IntroductoryText = "Skaters are shown here with the greatest number of journeys.";
model.Content.StatisticTitle = "Journeys";
break;
default:
throw new NotImplementedException($"{statisticType} is not currently supported");
}
return(model);
}
