private async Task <BaseReport> GetBaseReport(ElementType type, DateTime from, DateTime to, int entityId, string groupBy)
{
var periodReport = await _reportService.GetPeriodReportAsync(type, from, to, entityId);
var chart = ChartService.ElementDiffToBarChart(
await _reportService.GroupByDateAsync(periodReport, groupBy));
var entities = new List <KeyValuePair <int, string> >()
{
new KeyValuePair <int, string>(-1, "Все")
};
entities.AddRange(type switch
{
ElementType.Montage => await _montageService.GetListForSelectAsync(),
ElementType.Design => await _designService.GetListForSelectAsync(),
ElementType.Device => await _deviceService.GetListForSelectAsync(),
_ => new List <KeyValuePair <int, string> >(),
});