public IEnumerable <Suggestion> GetFirstSuggestion(string searchText, object currentValue)
{
var currentTime = currentValue is DateTime ? (DateTime)currentValue : DateTime.Now;
var newSuggestions = new List <Suggestion>();
// Ignore if first character is + or -
if (searchText.Length >= 1)
{
var firstCharacter = searchText[0];
if (firstCharacter == '+' || firstCharacter == '-')
{
return(newSuggestions);
}
}
// Find the parts in the time.
var dateParts = Regex.Split(searchText.ToLower(),
@"[^a-zA-Z0-9]+").ToList();
// Remove empty parts
foreach (var part in dateParts.ToList())
{
if (string.IsNullOrWhiteSpace(part))
{
dateParts.Remove(part);
}
}
switch (dateParts.Count)
{
default:
return(newSuggestions);
case 1:
var part = new TimePartParser(dateParts[0], 1, currentTime);
GetSinglePartSuggestions(part, newSuggestions, currentTime);
break;
case 2:
{
var firstPart = new TimePartParser(dateParts[0], 1, currentTime);
var secondPart = new TimePartParser(dateParts[1], 2, currentTime);
GetTwoPartSuggestions(firstPart, secondPart, newSuggestions, currentTime);
break;
}
}
return(newSuggestions);
}
private void GetSinglePartSuggestions(TimePartParser part,
List <Suggestion> newSuggestions,
DateTime currentTime)
{
// Check Possible Hour
if ((part.TimeType & (TimeTypeFlags.PossibleHour | TimeTypeFlags.DefiniteHour)) > 0)
{
// Possible or definite hour
var suggestedTime = currentTime.SetHour(part.HourValue);
var probability = part.HourProbability;
if (currentTime != suggestedTime)
{
var s
= new Suggestion
(
"",
suggestedTime.ToShortTimeString(),
"",
probability,
suggestedTime
);
newSuggestions.Add(s);
}
}
// Check Minute
if ((part.TimeType & (TimeTypeFlags.PossibleMinute | TimeTypeFlags.DefinitieMinute)) > 0)
{
// Possible or definite minute
var suggestedTime = currentTime.SetMinute(part.MinuteValue);
var probability = part.MinuteProbability;
if (currentTime != suggestedTime)
{
var s
= new Suggestion
(
"",
suggestedTime.ToShortTimeString(),
"",
probability,
suggestedTime
);
newSuggestions.Add(s);
}
}
}
private void GetTwoPartSuggestions(TimePartParser firstPart,
TimePartParser secondPart,
List <Suggestion> newSuggestions,
DateTime currentTime)
{
// Check Possible Hour and Minute
if ((firstPart.TimeType & (TimeTypeFlags.PossibleHour | TimeTypeFlags.DefiniteHour)) > 0 &&
(secondPart.TimeType & (TimeTypeFlags.PossibleMinute | TimeTypeFlags.DefinitieMinute)) > 0)
{
var suggestedTime = currentTime.SetHour(firstPart.HourValue).SetMinute(secondPart.MinuteValue);
var probability = (firstPart.HourProbability + secondPart.MinuteProbability) / 2;
if (currentTime != suggestedTime)
{
var s
= new Suggestion
(
"",
suggestedTime.ToShortTimeString(),
"",
probability,
suggestedTime
);
newSuggestions.Add(s);
}
}
// Check Possible Minute and Hour (realy?)
if ((firstPart.TimeType & (TimeTypeFlags.PossibleMinute | TimeTypeFlags.DefinitieMinute)) > 0 &&
(secondPart.TimeType & (TimeTypeFlags.PossibleHour | TimeTypeFlags.DefiniteHour)) > 0)
{
var suggestedTime = currentTime.SetHour(secondPart.HourValue).SetMinute(firstPart.MinuteValue);
var probability = (secondPart.HourProbability + firstPart.MinuteProbability) / 2;
if (currentTime != suggestedTime)
{
var s
= new Suggestion
(
"",
suggestedTime.ToShortTimeString(),
"",
probability,
suggestedTime
);
newSuggestions.Add(s);
}
}
}
