/// <summary>
/// The Calculate.
/// </summary>
/// <param name="values">The values<see cref="IList{double}"/>.</param>
/// <param name="statisticsMethod">The statisticsOutput<see cref="StatisticsMethod"/>.</param>
/// <param name="digits">The digit<see cref="int"/>.</param>
/// <returns>The <see cref="string"/>.</returns>
public static string Calculate(this IList <double> values, StatisticsMethod statisticsMethod, int digits = 0)
{
double result;
switch (statisticsMethod)
{
case StatisticsMethod.None:
return(null);
case StatisticsMethod.Average:
result = values.GetAverage();
return($"Average: {result.Format(digits)}");
case StatisticsMethod.Percentage:
return("Total: 100%");
case StatisticsMethod.PercentageAverage:
result = values.GetAverage();
return($"Average: {result.Format(digits)}%");
case StatisticsMethod.Total:
result = values.GetTotal();
return($"Total: {result.Format(digits)}");
default:
result = values.GetTotal();
return($"Total: {result.Format(digits)}");
}
}
/// <summary>
/// Статистика по товару
/// </summary>
/// <returns>Логическое значение</returns>
public static bool StatisticsProduct()
{
decimal AverageCostOfGoods = 0;
decimal AverageSellingPrice = 0;
var ProductsInStock = ProductBll.ProductsInStock();
var ProductsInSales = ProductBll.ProductsInSales();
foreach (var item in ProductsInStock)
{
AverageCostOfGoods += item.CostPrice;
}
foreach (var item in ProductsInSales)
{
AverageCostOfGoods += item.CostPrice;
AverageSellingPrice += item.Price;
}
Statistics statistics = new Statistics
{
NumberOfGoodsSold = ProductsInSales.Count(),
QuantityOfGoodsInStock = ProductsInStock.Count(),
AverageCostOfGoods = AverageCostOfGoods,
AverageSellingPrice = AverageSellingPrice,
Date = DateTime.Now
};
return(StatisticsMethod.AddItem(statistics));
}
