public string GetString(MonthExchangeRateReport report)
{
var sb = new StringBuilder();
this.AddHeader(report, sb);
sb.Append("Week periods:");
sb.Append(Environment.NewLine);
sb.Append(Environment.NewLine);
foreach (var week in report.ByWeek)
{
sb.Append($"{week.WeekStart.Day}...{week.WeekEndDate.Day}: ");
foreach (var info in week.Infos)
{
sb.Append($"{info.Code} - max: {info.MaxRate}, min: {info.MinRate}, median: {info.MedianRate}; ");
}
if (!week.Infos.Any())
{
sb.Append("There is no existing data");
}
sb.Append(Environment.NewLine);
sb.Append(Environment.NewLine);
}
return(sb.ToString());
}
public virtual async Task <MonthExchangeRateReport> GetMonthReport(DateTime month)
{
var model = new MonthExchangeRateReport
{
ReportDate = month
};
var weekExchangeRateStatistics = new List <WeekExchangeRateStatistic>();
var startDate = new DateTime(month.Year, month.Month, 1);
var endDate = startDate.AddMonths(1).AddDays(-1);
while (startDate < endDate)
{
var currentEndDate = startDate.AddDays((int)DayOfWeek.Saturday - (int)startDate.DayOfWeek + 1);
if (currentEndDate > endDate)
{
currentEndDate = endDate;
}
// TODO: распараллелить?
weekExchangeRateStatistics.Add(new WeekExchangeRateStatistic
{
WeekStart = startDate,
WeekEndDate = currentEndDate,
Infos = await this.GetInfos(startDate, currentEndDate)
});
startDate = currentEndDate.AddDays(1);
}
model.ByWeek = weekExchangeRateStatistics;
return(model);
}
protected internal virtual void AddHeader(MonthExchangeRateReport report, StringBuilder sb)
{
sb.Append("Year: ");
sb.Append(report.ReportDate.Year);
sb.Append(", month: ");
sb.Append(report.ReportDate.ToString("MMMM"));
sb.Append(Environment.NewLine);
sb.Append(Environment.NewLine);
}
