public void UpdatePrice(PriceUpdate updateRequest)
{
if (updateRequest.Price == CurrentPrice)
{
return;
}
PriceHistory.Add(updateRequest);
MonthlyPrices.Add(updateRequest);
HistoricalPrices.Last().Price = PriceHistory.Where(pu => pu.Date.Year == updateRequest.Date.Year).Average(value => value.Price);
YearlyPrices.ElementAt(updateRequest.Date.Month - 1).Price = PriceHistory.Where(pu => pu.Date.Year == updateRequest.Date.Year && pu.Date.Month == updateRequest.Date.Month).Average(value => value.Price);
CurrentPrice = updateRequest.Price;
}
public void FillPriceHistory()
{
m_allPriceUpdates = new Dictionary <DateTime, double>();
MonthlyPrices.Clear();
YearlyPrices.Clear();
HistoricalPrices.Clear();
CurrentPrice = PriceHistory.Last().Price;
foreach (PriceUpdate update in PriceHistory)
{
m_allPriceUpdates.Add(update.Date, update.Price);
}
if (m_allPriceUpdates != null && m_allPriceUpdates.Count != 0)
{
List <int> years = new List <int>();
DateTime now = DateTime.Now;
foreach (DateTime newDate in m_allPriceUpdates.Keys)
{
if (!years.Contains(newDate.Year))
{
// fill all yearly avg prices
years.Add(newDate.Year);
if (years.Count == 1)
{
double yearAvgPrice = m_allPriceUpdates.Where(date => date.Key.Year == newDate.Year).Average(value => value.Value);
HistoricalPrices.Add(new PriceUpdate(new DateTime(newDate.Year, 1, 1), yearAvgPrice, "test"));
}
if (years.Count() >= 2)
{
// year is increment by 1
double oldPriceLastYear = m_allPriceUpdates.Where(date => date.Key.Year == years.ElementAt(years.Count - 2)).Last().Value;
Dictionary <DateTime, double> copyAll = new Dictionary <DateTime, double>(m_allPriceUpdates);
copyAll.Add(new DateTime(newDate.Year, 1, 1), oldPriceLastYear);
double yearAvgPrice = copyAll.Where(date => date.Key.Year == newDate.Year).Average(value => value.Value);
HistoricalPrices.Add(new PriceUpdate(new DateTime(newDate.Year, 1, 1), yearAvgPrice, "test"));
// if there is no update for a year
int yearDif = newDate.Year - years.ElementAt(years.Count - 2);
if (yearDif > 1)
{
double oldPrice = m_allPriceUpdates.Where(date => date.Key.Year == years.ElementAt(years.Count - 2)).Last().Value;
for (int i = years.ElementAt(years.Count - 2) + 1; i < newDate.Year; ++i)
{
HistoricalPrices.Add(new PriceUpdate(new DateTime(i, 1, 1), oldPrice, "test"));
}
}
}
// fill all months average prices for current year
if (now.Year == newDate.Year)
{
double monthAvg = 0.0;
for (int i = 1; i <= now.Month; ++i)
{
Dictionary <DateTime, double> copyAll = new Dictionary <DateTime, double>(m_allPriceUpdates);
if (i == 1)
{
double oldPriceLastYear = m_allPriceUpdates.Where(date => date.Key.Year == years.ElementAt(years.Count - 2)).Last().Value;
copyAll.Add(new DateTime(newDate.Year, 1, 1), oldPriceLastYear);
}
else
{
double oldPriceLastMonth = m_allPriceUpdates.Where(date => date.Key.Year == now.Year && date.Key.Month == i - 1).Last().Value;
copyAll.Add(new DateTime(newDate.Year, i, 1), oldPriceLastMonth);
}
var temp = copyAll.Where(date => date.Key.Year == newDate.Year && date.Key.Month == i);
if (temp.Count() > 0)
{
monthAvg = temp.Average(value => value.Value);
YearlyPrices.Add(new PriceUpdate(new DateTime(newDate.Year, i, 1), monthAvg, "test"));
}
else
{
var lastChanges = m_allPriceUpdates.Where(date => date.Key.Year == newDate.Year && date.Key.Month < i);
if (lastChanges.Count() > 0)
{
YearlyPrices.Add(new PriceUpdate(new DateTime(newDate.Year, i, 1), lastChanges.Last().Value, "test"));
}
}
}
// for days in current month
var lastMonthChanges = m_allPriceUpdates.Where(date => date.Key.Year == now.Year && date.Key.Month < now.Month);
if (lastMonthChanges.Count() > 0)
{
MonthlyPrices.Add(new PriceUpdate(new DateTime(now.Year, now.Month, 1), lastMonthChanges.Last().Value, "test"));
}
var currentMonthPrices = m_allPriceUpdates.Where(date => date.Key.Year == now.Year && date.Key.Month == now.Month);
if (currentMonthPrices.Count() > 0)
{
foreach (KeyValuePair <DateTime, double> pair in currentMonthPrices)
{
MonthlyPrices.Add(new PriceUpdate(new DateTime(pair.Key.Year, pair.Key.Month, pair.Key.Day), pair.Value, "test"));
}
}
if (currentMonthPrices.Count() > 0)
{
MonthlyPrices.Add(new PriceUpdate(new DateTime(now.Year, now.Month, now.Day), currentMonthPrices.Last().Value, "test"));
}
}
}
}
}
}
