private string GetExpenseStatisticText(long userId, DateTime?startDate = null, DateTime?endDate = null)
{
var statisticManager = new StatisticsManager();
List <ExpenseStatistic> expenseStatistics;
decimal totalAmount;
string period;
if (startDate == null || endDate == null)
{
expenseStatistics = statisticManager.GetExpensesStatistic(userId);
totalAmount = statisticManager.GetTotalAmountOfExpenses(userId);
period = "весь час";
}
else
{
expenseStatistics = statisticManager.GetExpensesStatistic(userId, startDate.Value, endDate.Value);
totalAmount = statisticManager.GetTotalAmountOfExpenses(userId, startDate.Value, endDate.Value);
period = startDate.Value.Year < DateTime.Now.Year ? startDate.Value.ToString("MMMM", culture) + " " + startDate.Value.Year
: startDate.Value.ToString("MMMM", culture);
}
var downChart = new Emoji(0x1F4C9);
StringBuilder answer = new StringBuilder($"{downChart} Статистика витрат по категоріям за <b>{period}</b>:\n");
foreach (var row in expenseStatistics)
{
var categoryEmoji = dbContext.GetCategoryEmoji(row.Category, CategoryType.Expense);
answer.Append($"\t\t\t{categoryEmoji} {row.Category} - {row.TotalAmount} ₴ ({row.Percent}%)\n");
}
answer.Append($"Загальна сума витрат: <u><b>{totalAmount} ₴</b></u>");
return(answer.ToString());
}
