public BooksDelta(DateTime date, DateTime startDate)
{
Date = date;
StartDate = startDate;
TimeSpan ts = date - startDate;
DaysSinceStart = ts.Days;
BooksReadToDate = new List <BookRead>();
OverallTally = new DeltaTally();
LastTenTally = new DeltaTally();
}
public void UpdateTallies()
{
// start with the overall
OverallTally = GetDeltaTallyValues(BooksReadToDate);
// then get the last 10 books in a list
List <BookRead> lastTenBooks = new List <BookRead>();
if (BooksReadToDate.Count <= 10)
{
lastTenBooks = BooksReadToDate;
}
else
{
for (int i = BooksReadToDate.Count - 10; i < BooksReadToDate.Count; i++)
{
lastTenBooks.Add(BooksReadToDate[i]);
}
}
// then update the tally based on that list
LastTenTally = GetDeltaTallyValues(lastTenBooks);
}
private DeltaTally GetDeltaTallyValues(List <BookRead> books)
{
DeltaTally tally = new DeltaTally();
UInt32 totalBooks = 0;
UInt32 totalPagesRead = 0;
UInt32 totalBookFormat = 0;
UInt32 totalComicFormat = 0;
UInt32 totalAudioFormat = 0;
UInt32 totalInEnglish = 0;
int daysInTally;
daysInTally = (books.Last().Date - books.First().Date).Days;
if (daysInTally < 1)
{
daysInTally = 1;
}
Dictionary <string, Tuple <UInt32, UInt32> > languageCounts =
new Dictionary <string, Tuple <UInt32, UInt32> >();
Dictionary <string, Tuple <UInt32, UInt32> > countryCounts =
new Dictionary <string, Tuple <UInt32, UInt32> >();
foreach (var book in books)
{
totalBooks++;
totalPagesRead += book.Pages;
if (book.Format == BookFormat.Book)
{
totalBookFormat++;
}
if (book.Format == BookFormat.Comic)
{
totalComicFormat++;
}
if (book.Format == BookFormat.Audio)
{
totalAudioFormat++;
}
if (book.OriginalLanguage == "English")
{
totalInEnglish++;
}
UpdateLanguageAndCountryCounts(languageCounts, countryCounts, book);
}
double percentageInEnglish = GetAsPercentage(totalBooks, totalInEnglish);
tally.DaysInTally = daysInTally;
tally.TotalPages = totalPagesRead;
tally.TotalBooks = totalBooks;
tally.TotalBookFormat = totalBookFormat;
tally.TotalComicFormat = totalComicFormat;
tally.TotalAudioFormat = totalAudioFormat;
tally.PercentageInEnglish = percentageInEnglish;
foreach (string language in languageCounts.Keys)
{
tally.LanguageTotals.Add(
new Tuple <string, UInt32, double, UInt32, double>(
language, languageCounts[language].Item1,
GetAsPercentage(totalBooks, languageCounts[language].Item1),
languageCounts[language].Item2,
GetAsPercentage(totalPagesRead, languageCounts[language].Item2))
);
}
foreach (string country in countryCounts.Keys)
{
tally.CountryTotals.Add(
new Tuple <string, UInt32, double, UInt32, double>(
country, countryCounts[country].Item1,
GetAsPercentage(totalBooks, countryCounts[country].Item1),
countryCounts[country].Item2,
GetAsPercentage(totalPagesRead, countryCounts[country].Item2))
);
}
return(tally);
}
