public Decimal GetTransactionPeriodValue(IList <TransactionData> data)
{
var result = (from item in data.Where(x => x.TransactionType == TransactionType.Sell)
let buyTransaction = (TransactionData)(data.FirstOrDefault(x => x.Id == item.SellTransactionId) ?? _transactionRepository.GetTransactionById(item.SellTransactionId))
let buyCost = _calculatorEngine.CalculateCost(buyTransaction.Shares, buyTransaction.Price, buyTransaction.Commission, buyTransaction.Tax, buyTransaction.Levy)
let sellCost = _calculatorEngine.CalculateCost(item.Shares, item.Price, item.Commission, item.Tax, item.Levy)
select sellCost - buyCost).Sum();
result += (from item in data.Where(x => x.TransactionType == TransactionType.Dividend)
select _calculatorEngine.CalculateEarnings(item.Shares, item.Price, 0, 0, 0)).Sum();
return(result);
}
public HoldingViewModel BuildViewModel(HoldingData data)
{
var viewModel = _autoMapper.Map <HoldingData, HoldingViewModel>(data);
var cost = _calculatorEngine.CalculateCost(viewModel.Shares, viewModel.Price, viewModel.Commission, viewModel.Tax, viewModel.Levy);
viewModel.Cost = cost;
viewModel.BreakEvenPrice = _calculatorEngine.CalculateBreakEvenPrice(viewModel.Shares, viewModel.Price, viewModel.Commission, viewModel.Tax, viewModel.Levy);
var profitPrice = _calculatorEngine.CalculateProfitPrice(viewModel.Shares, viewModel.Price, viewModel.Commission, viewModel.Tax, viewModel.Levy, 1 + (viewModel.Percentage / 100));
viewModel.ProfitPrice = profitPrice;
viewModel.Earnings = _calculatorEngine.CalculateEarnings(viewModel.Shares, profitPrice, viewModel.Commission, cost, viewModel.Levy);
return(viewModel);
}
public IList <DashboardViewModel> BuildViewModels()
{
IList <TransactionData> data;
try
{
data = _transactionRepository.GetCurrentHoldings();
}
catch
{
// Get from latest Json file
data = _transactionFileWrapper.GetCurrentHoldings();
}
var viewModels = new List <DashboardViewModel>();
var currentPrices = _stockPriceRetriever.GetPrices(data);
foreach (var item in data)
{
var viewModel = _autoMapper.Map <TransactionData, DashboardViewModel>(item);
var profitPercentage = _calculatorEngine.CalculatePercentage(item.Percentage);
var cost = _calculatorEngine.CalculateCost(item.Shares, item.Price, item.Commission, item.Tax, item.Levy);
var currentPrice = currentPrices.FirstOrDefault(x => x.Code.Replace(".L", String.Empty) == item.Code);
viewModel.Name = currentPrice.Name;
viewModel.BreakEvenPrice = _calculatorEngine.CalculateBreakEvenPrice(item.Shares, item.Price,
item.Commission, item.Tax, item.Levy);
viewModel.ProfitPrice = _calculatorEngine.CalculateProfitPrice(item.Shares, item.Price, item.Commission,
item.Tax, item.Levy, profitPercentage);
viewModel.CurrentPrice = currentPrice.Ask;
viewModel.PercentageDifference = (viewModel.CurrentPrice - viewModel.BreakEvenPrice) /
viewModel.BreakEvenPrice;
viewModel.Earnings = _calculatorEngine.CalculateEarnings(item.Shares, currentPrice.Ask, item.Commission,
cost, item.Levy);
viewModels.Add(viewModel);
}
return(viewModels);
}
private void CalculateButton_OnClick(object sender, RoutedEventArgs e)
{
var investment = Decimal.Parse(InvestmentTextBox.Text);
var commission = Decimal.Parse(CommissionTextBox.Text);
var tax = Decimal.Parse(TaxTextBox.Text);
var levy = Decimal.Parse(LevyTextBox.Text);
var price = Decimal.Parse(PriceTextBox.Text);
var percentage = 1 + (Decimal.Parse(ProfitTextBox.Text) / 100M);
var shares = _calculatorEngine.CalculateShares(investment, commission, tax, levy, price);
var cost = _calculatorEngine.CalculateCost(shares, price, commission, tax, levy);
var profitPrice = _calculatorEngine.CalculateProfitPrice(shares, price, commission, tax, levy, percentage);
SharesLabel.Content = shares;
CostLabel.Content = cost;
BreakEvenPriceLabel.Content = _calculatorEngine.CalculateBreakEvenPrice(shares, price, commission, tax, levy);
ProfitPriceLabel.Content = profitPrice;
EarningsLabel.Content = _calculatorEngine.CalculateEarnings(shares, profitPrice, commission, cost, levy);
}
public ActionResult Index(CalculatorViewModel viewModel, String calculate)
{
if (String.IsNullOrEmpty(calculate))
{
var transactionViewModel = _autoMapper.Map <CalculatorViewModel, TransactionViewModel>(viewModel);
transactionViewModel.Shares = _calculatorEngine.CalculateShares(viewModel.Investment, viewModel.Commission,
viewModel.Tax,
viewModel.Levy, viewModel.Price);
return(View("../Transactions/Add", transactionViewModel));
}
else
{
viewModel.Shares = _calculatorEngine.CalculateShares(viewModel.Investment, viewModel.Commission,
viewModel.Tax,
viewModel.Levy, viewModel.Price);
viewModel.Cost = _calculatorEngine.CalculateCost(viewModel.Shares, viewModel.Price, viewModel.Commission,
viewModel.Tax, viewModel.Levy);
viewModel.BreakEvenPrice = _calculatorEngine.CalculateBreakEvenPrice(viewModel.Shares, viewModel.Price,
viewModel.Commission, viewModel.Tax, viewModel.Levy);
var profitPercentage = _calculatorEngine.CalculatePercentage(viewModel.Profit);
viewModel.ProfitPrice = _calculatorEngine.CalculateProfitPrice(viewModel.Shares, viewModel.Price,
viewModel.Commission, viewModel.Tax, viewModel.Levy, profitPercentage);
viewModel.Earnings = _calculatorEngine.CalculateEarnings(viewModel.Shares, viewModel.ProfitPrice,
viewModel.Commission, viewModel.Cost, viewModel.Levy);
var viewResult = new ViewResult
{
ViewName = "Index",
ViewData = { Model = viewModel }
};
viewResult.ViewBag.Message = "Investment Calculated";
return(viewResult);
}
}