public async Task <Statistics> GetStatistics(string user)
{
List <MonthData> months = await m_DataProvider.GetMany(x => x.Username == user);
var domainMonths = months.Select(x => x.ToDomain());
//need to prune days that are later than the currentdate
var domainWeeks = months.SelectMany(x => x.Weeks);
//to do this we need to extract a ew object for each day, and project the date
//into the new object, because date is only recorded for each week
//the Select with index parameter helps here
var domainDays = domainWeeks.SelectMany(w => w.Days.Select(
(d, i) => new { Date = w.StartingDate.AddDays(i), GoodOrNot = d.GoodOrNot }))
.Where(x => x.Date < DateTime.Now)
.OrderBy(x => x.Date);;
var good = domainDays.Aggregate(
new { Longest = 0, Current = 0 },
(x, y) => y.GoodOrNot > 0
? new { Longest = Math.Max(x.Longest, x.Current + 1), Current = x.Current + 1 }
: new { Longest = x.Longest, Current = 0 });
var bad = domainDays.Aggregate(
new { Longest = 0, Current = 0 },
(x, y) => y.GoodOrNot < 0
? new { Longest = Math.Max(x.Longest, x.Current + 1), Current = x.Current + 1 }
: new { Longest = x.Longest, Current = 0 });
//fetch the data and look for sequences
Statistics statistics = new Statistics
{
CurrentRunOfBadDays = bad.Current,
CurrentRunOfGoodDays = good.Current,
LongestRunOfBadDays = bad.Longest,
LongestRunOfGoodDays = good.Longest
};
return(statistics);
}
public async Task <List <MonthDomain> > GetMonthsByYear(string user, int year)
{
List <MonthData> months = await m_DataProvider.GetMany(x => x.Year == year && x.Username == user);
return(months.ConvertAll <MonthDomain>(month => month?.ToDomain()));
}
