public override string Evaluate(RequestProcess process)
{
string value = this.TupleKey?.Evaluate(process);
if (!string.IsNullOrWhiteSpace(value))
{
// Get a value from a tuple.
int index; Tuple tuple;
if (int.TryParse(value, out index) && index >= 0 && index < Tuple.Tuples.Count)
{
tuple = Tuple.Tuples[index];
if (tuple.TryGetValue(this.Key.Evaluate(process), out value))
{
return(value);
}
}
return(process.Bot.Config.DefaultPredicate);
}
// Get a user variable or local variable.
if (this.LocalVar)
{
return(process.GetVariable(this.Key.Evaluate(process)));
}
return(process.User.GetPredicate(this.Key.Evaluate(process)));
}
public li?Pick(RequestProcess process)
{
string value;
foreach (var item in this.items)
{
string?key = item.Key?.Evaluate(process);
string?checkValue = item.Value?.Evaluate(process);
Dictionary <string, string> dictionary;
if (item.LocalVar)
{
dictionary = process.Variables;
}
else
{
dictionary = process.User.Predicates;
}
if (key != null && checkValue != null)
{
if (checkValue == "*")
{
// '*' is a match if the predicate is bound at all.
if (item.LocalVar)
{
if (process.Variables.TryGetValue(key, out value))
{
process.Log(LogLevel.Diagnostic, $"In element <condition>: Local variable {key} matches *.");
return(item);
}
}
else
{
if (process.User.Predicates.TryGetValue(key, out value))
{
process.Log(LogLevel.Diagnostic, $"In element <condition>: Local variable {key} matches *.");
return(item);
}
}
}
else
{
if (item.LocalVar)
{
if (process.Bot.Config.StringComparer.Equals(process.GetVariable(key), checkValue))
{
process.Log(LogLevel.Diagnostic, $"In element <condition>: Local variable {key} matches {checkValue}.");
return(item);
}
}
else
{
if (process.Bot.Config.StringComparer.Equals(checkValue, process.User.GetPredicate(key)))
{
process.Log(LogLevel.Diagnostic, $"In element <condition>: {(item.LocalVar ? "Local variable" : "Predicate")} {key} matches {checkValue}.");
return(item);
}
}
}
// No match; keep looking.
process.Log(LogLevel.Diagnostic, $"In element <condition>: {(item.LocalVar ? "Local variable" : "Predicate")} {key} does not match {checkValue}.");
}
else if (key == null && checkValue == null)
{
// Default case.
return(item);
}
else
{
process.Log(LogLevel.Warning, "In element <condition>: Missing name, var or value attribute in <li>.");
}
}
return(null);
}