public async Task <IActionResult> CreateInitiative(HealthInitiativeDto model)
{
var dbEntity = new HealthInitiative
{
Id = model.Id,
Name = model.Name,
TotalWeightLossGoal = model.TotalWeightLossGoal,
HealthParticipants = model.Participants?.Select(x => new HealthParticipant
{
IndividualWeightLossGoal = x.IndividualWeightLossGoal,
Name = x.Name,
StartingWeight = x.StartingWeight
}).ToList(),
StartDateTime = model.StartDateTime,
EndDateTime = model.EndDateTime
};
await _repo.InsertHealthInitiativeAsync(dbEntity);
return(Ok(dbEntity.Id));
}
private List <LeaderboardParticipantDto> TallyPointsAndMapParticipantsToLeaderboard(HealthInitiative initiative)
{
if (initiative.HealthParticipants != null)
{
var participantLogs = initiative.HealthParticipants
.SelectMany(x => x.ParticipantLogs)
.GroupBy(x => x.ParticipantId)
.ToDictionary(x => x.Key, x => x.ToList());
var leaderboardParticipants = new List <LeaderboardParticipantDto>();
foreach (var participant in initiative.HealthParticipants)
{
if (participant.ParticipantLogs.Any())
{
var lostWeight = 0.0m;
var overallWeightLoss = participantLogs[participant.Id]
.OrderByDescending(x => x.CurrentWeight)
.Select(x => x.CurrentWeight)
.Aggregate(participant.StartingWeight, (total, next) =>
{
lostWeight += total - next;
return(next);
});
var postPoints = participantLogs[participant.Id].Sum(x => x.Points);
var leaderboardParticipantDto = new LeaderboardParticipantDto
{
Name = participant.Name,
Points = postPoints,
PoundsLost = lostWeight,
PercentTowardsGoal = Math.Round((lostWeight / (participant.StartingWeight - participant.IndividualWeightLossGoal)) * 100)
};
leaderboardParticipants.Add(leaderboardParticipantDto);
}
else
{
var leaderboardParticipantDto = new LeaderboardParticipantDto
{
Name = participant.Name,
Points = 0,
PoundsLost = 0,
PercentTowardsGoal = 0
};
leaderboardParticipants.Add(leaderboardParticipantDto);
}
}
return(leaderboardParticipants.OrderByDescending(x => x.Points).Select((item, index) =>
{
item.Place = index + 1;
return item;
}).ToList());
}
return(new List <LeaderboardParticipantDto>());
}
public async Task InsertHealthInitiativeAsync(HealthInitiative initiative)
{
await _db.HealthInitiatives.AddAsync(initiative);
await _db.SaveChangesAsync();
}
