public static Dictionary <DateElement, int> ToLookbackDictionary(this string lookback)
{
var result = new Dictionary <DateElement, int>();
var matches = ParseLookback(lookback);
if (matches.Count <= 0)
{
throw new ArgumentException("Lookback string is not valid", nameof(lookback));
}
foreach (Match match in matches)
{
var elementDirection = GetDirection(match.Groups[1].Value.Trim());
var elementValueStr = match.Groups[2].Value.Trim();
var elementValueType = match.Groups[3].Value.Trim();
if (!int.TryParse(elementValueStr, out var elementValue))
{
elementValue = 0;
}
if (elementDirection.Equals("-"))
{
elementValue = elementValue * -1;
}
var e = DateElement.Parse(elementValueType);
result.Add(e, elementValue);
}
return(result);
}
public static System.DateTime ApplyOffset(this System.DateTime date, string @type, int amount)
{
return(DateElement.Parse(type).Element.Add(date, amount));
}
