public FormPrompt Start(IDialogContext context, T state, FormState form)
{
form.SetPhase(StepPhase.Completed);
var prompt = new Prompter <T>(_promptDefinition, _form, null);
return(prompt.Prompt(state, null));
}
public FormPrompt NotUnderstood(IDialogContext context, T state, FormState form, IMessageActivity input)
{
var template = _field.Template(TemplateUsage.NotUnderstood);
var prompter = new Prompter <T>(template, _field.Form, null);
return(prompter.Prompt(state, _field, MessageActivityHelper.GetSanitizedTextInput(input)));
}
public override string Help(T state, object defaultValue)
{
var prompt = new Prompter <T>(_field.Template(TemplateUsage.DateTimeHelp), _field.Form, null);
var args = HelpArgs(state, defaultValue);
return(prompt.Prompt(state, _field, args.ToArray()).Prompt);
}
public FormPrompt Help(T state, FormState form, string commandHelp)
{
var recognizer = _field.Prompt.Recognizer;
var prompt = new Prompter <T>(_field.Template(TemplateUsage.HelpNavigation), _field.Form, recognizer, _fields);
var help = prompt.Prompt(state, _field, "* " + recognizer.Help(state, null), commandHelp);
return(new FormPrompt {
Prompt = "* " + help.Prompt, Buttons = help.Buttons
});
}
public FormPrompt Help(T state, FormState form, string commandHelp)
{
var template = _field.Template(TemplateUsage.HelpConfirm);
var prompt = new Prompter <T>(template, _field.Form, _field.Prompt.Recognizer);
var help = prompt.Prompt(state, _field, "* " + prompt.Recognizer.Help(state, null), commandHelp);
return(new FormPrompt {
Prompt = "* " + help.Prompt, Buttons = help.Buttons
});
}
public override string Help(T state, object defaultValue)
{
var prompt = new Prompter <T>(_field.Template(TemplateUsage.DoubleHelp), _field.Form, null);
var args = HelpArgs(state, defaultValue);
if (_showLimits)
{
args.Add(_min);
args.Add(_max);
}
return(prompt.Prompt(state, _field, args.ToArray()).Prompt);
}
private FormPrompt ClarifyPrompt(FieldStepState stepState, IRecognize <T> recognizer, T state)
{
var clarify = NeedsClarification(stepState);
FormPrompt prompt = null;
if (clarify != null)
{
var field = ClarifyField(clarify, recognizer);
var prompter = new Prompter <T>(field.Template(TemplateUsage.Clarify), field.Form, new RecognizeEnumeration <T>(field));
prompt = prompter.Prompt(state, field, clarify.Response);
}
return(prompt);
}
protected void DefineRecognizer()
{
if (_recognizer == null)
{
if (_type == null || _type.IsEnum)
{
_recognizer = new RecognizeEnumeration <T>(this);
}
else if (_type == typeof(bool))
{
_recognizer = new RecognizeBool <T>(this);
}
else if (_type == typeof(string))
{
_recognizer = new RecognizeString <T>(this);
}
else if (_type.IsIntegral())
{
_recognizer = new RecognizeNumber <T>(this);
}
else if (_type.IsDouble())
{
_recognizer = new RecognizeDouble <T>(this);
}
else if (_type == typeof(DateTime))
{
_recognizer = new RecognizeDateTime <T>(this);
}
else if (_type.IsIEnumerable())
{
var elt = _type.GetGenericElementType();
if (elt.IsEnum)
{
_recognizer = new RecognizeEnumeration <T>(this);
}
}
_buildPrompts = true;
}
if (_buildPrompts)
{
var template = Template(TemplateUsage.Help);
_help = new Prompter <T>(template, _form, _recognizer);
var prompt = _promptDefinition;
_prompt = new Prompter <T>(_promptDefinition, _form, _recognizer);
_buildPrompts = false;
}
}
public NavigationField(string name, string startField, IForm <T> form, T state, FormState formState, Fields <T> fields)
: base(name, FieldRole.Value)
{
Form = form;
var field = form.Fields.Field(startField);
SetFieldDescription(_form.Configuration.Navigation);
SetOptional();
foreach (var value in formState.Next.Names)
{
var svalue = (string)value;
var sfield = form.Fields.Field(svalue);
var fieldPrompt = sfield.Template(TemplateUsage.NavigationFormat);
var prompter = new Prompter <T>(fieldPrompt, form, sfield.Prompt.Recognizer);
AddDescription(value, prompter.Prompt(state, sfield).Prompt, null, sfield.FieldDescription.Message ?? sfield.FieldDescription.Description);
AddTerms(value, form.Fields.Field(svalue).FieldTerms.ToArray());
}
var template = field.Template(TemplateUsage.Navigation);
SetPrompt(new PromptAttribute(template));
SetRecognizer(new RecognizeEnumeration <T>(this));
_prompt = new Prompter <T>(template, form, _recognizer, fields);
}
public async Task <StepResult> ProcessAsync(IDialogContext context, T state, FormState form, IMessageActivity input, IEnumerable <TermMatch> matches)
{
var inputText = MessageActivityHelper.GetSanitizedTextInput(input);
ValidateResult feedback = new ValidateResult();
feedback.IsValid = true;
feedback.Feedback = null;
feedback.FeedbackCard = null;
feedback.Choices = null;
FormPrompt prompt = null;
FormPrompt feedbackPrompt = null;
var iprompt = _field.Prompt;
var fieldState = (FieldStepState)form.StepState;
object response = null;
if (fieldState.State == FieldStepStates.SentPrompt)
{
// Response to prompt
var firstMatch = matches.FirstOrDefault();
if (matches.Count() == 1)
{
response = firstMatch.Value;
if (_field.AllowsMultiple && response != null &&
(response.GetType() == typeof(string) || !response.GetType().IsIEnumerable()))
{
response = new List <object>()
{
response
};
}
feedback = await SetValueAsync(state, response, form);
if (!feedback.IsValid && feedback.Choices != null)
{
var choices = new Ambiguous(inputText.Substring(firstMatch.Start, firstMatch.Length), feedback.Choices);
fieldState.State = FieldStepStates.SentClarify;
fieldState.Settled = new List <object>();
fieldState.Clarifications = new List <Ambiguous>()
{
choices
};
response = SetValue(state, null);
prompt = ClarifyPrompt((FieldStepState)form.StepState, iprompt.Recognizer, state);
}
}
else if (matches.Count() > 1)
{
// Check multiple matches for ambiguity
var groups = MatchAnalyzer.GroupedMatches(matches);
// 1) Could be multiple match groups like for ingredients.
// 2) Could be overlapping matches like "onion".
// 3) Could be multiple matches where only one is expected.
if (!_field.AllowsMultiple)
{
// Create a single group of all possibilities if only want one value
var mergedGroup = groups.SelectMany((group) => group).ToList();
groups = new List <List <TermMatch> >()
{
mergedGroup
};
}
var ambiguous = new List <Ambiguous>();
var settled = new List <object>();
foreach (var choices in groups)
{
if (choices.Count > 1)
{
var unclearResponses = string.Join(" ", (from choice in choices select inputText.Substring(choice.Start, choice.Length)).Distinct());
var values = from match in choices select match.Value;
ambiguous.Add(new Ambiguous(unclearResponses, values));
}
else
{
var matchValue = choices.First().Value;
if (matchValue != null && matchValue.GetType() != typeof(string) && matchValue.GetType().IsIEnumerable())
{
foreach (var value in (System.Collections.IEnumerable)matchValue)
{
settled.Add(value);
}
}
else
{
settled.Add(choices.First().Value);
}
}
}
if (settled.Count > 1)
{
// Remove no preference if present
settled.Remove(null);
}
if (ambiguous.Count > 0)
{
// Need 1 or more clarifications
fieldState.State = FieldStepStates.SentClarify;
fieldState.Settled = settled;
fieldState.Clarifications = ambiguous;
response = SetValue(state, null);
prompt = ClarifyPrompt((FieldStepState)form.StepState, iprompt.Recognizer, state);
}
else
{
if (_field.AllowsMultiple)
{
response = settled;
feedback = await SetValueAsync(state, response, form);
}
else
{
Debug.Assert(settled.Count == 1);
response = settled.First();
feedback = await SetValueAsync(state, response, form);
}
}
}
var unmatched = MatchAnalyzer.Unmatched(inputText, matches);
var unmatchedWords = string.Join(" ", unmatched);
var nonNoise = Language.NonNoiseWords(Language.WordBreak(unmatchedWords)).ToArray();
fieldState.Unmatched = null;
if (_field.Prompt.Annotation.Feedback == FeedbackOptions.Always)
{
fieldState.Unmatched = string.Join(" ", nonNoise);
}
else if (_field.Prompt.Annotation.Feedback == FeedbackOptions.Auto &&
nonNoise.Any() &&
unmatched.Any())
{
fieldState.Unmatched = string.Join(" ", nonNoise);
}
}
else if (fieldState.State == FieldStepStates.SentClarify)
{
if (matches.Count() == 1)
{
// Clarified ambiguity
var clarify = NeedsClarification(fieldState);
fieldState.Settled.Add(matches.First().Value);
fieldState.Clarifications.Remove(clarify);
if (prompt == null)
{
// No clarification left, so set the field
if (_field.AllowsMultiple)
{
response = fieldState.Settled;
feedback = await SetValueAsync(state, response, form);
}
else
{
Debug.Assert(fieldState.Settled.Count == 1);
response = fieldState.Settled.First();
feedback = await SetValueAsync(state, response, form);
}
form.SetPhase(StepPhase.Completed);
}
}
}
if (form.Phase() == StepPhase.Completed)
{
form.StepState = null;
if (fieldState.Unmatched != null)
{
if (feedback.FeedbackCard != null)
{
feedbackPrompt = feedback.FeedbackCard;
}
else if (feedback.Feedback != null)
{
feedbackPrompt = new FormPrompt {
Prompt = feedback.Feedback
};
}
else
{
if (fieldState.Unmatched != string.Empty)
{
feedbackPrompt = new Prompter <T>(_field.Template(TemplateUsage.Feedback), _field.Form, null).Prompt(state, _field, fieldState.Unmatched);
}
else
{
feedbackPrompt = new Prompter <T>(_field.Template(TemplateUsage.Feedback), _field.Form, null).Prompt(state, _field);
}
}
}
}
var next = _field.Next(response, state);
return(new StepResult(feedback.IsValid, next, feedbackPrompt ?? (feedback.FeedbackCard ?? new FormPrompt {
Prompt = feedback.Feedback
}), prompt));
}
private string ExpandTemplate(string template, string currentChoice, string noValue, T state, IField <T> field, object[] args, ref IList <DescribeAttribute> buttons)
{
bool foundUnspecified = false;
int last = 0;
int numeric;
var response = new StringBuilder();
foreach (Match match in _args.Matches(template))
{
var expr = match.Groups[1].Value.Trim();
var substitute = string.Empty;
if (expr.StartsWith("&"))
{
var name = expr.Substring(1);
if (name == string.Empty && field != null)
{
name = field.Name;
}
var pathField = _fields.Field(name);
substitute = Language.Normalize(pathField == null ? field.Name : pathField.FieldDescription.Description, _annotation.FieldCase);
}
else if (expr == "||")
{
var builder = new StringBuilder();
var values = _recognizer.ValueDescriptions();
var useButtons = !field.AllowsMultiple &&
(_annotation.ChoiceStyle == ChoiceStyleOptions.Auto ||
_annotation.ChoiceStyle == ChoiceStyleOptions.Buttons ||
_annotation.ChoiceStyle == ChoiceStyleOptions.Carousel);
if (values.Any() && _annotation.AllowDefault != BoolDefault.False && field.Optional)
{
values = values.Concat(new DescribeAttribute[] { new DescribeAttribute(Language.Normalize(noValue, _annotation.ChoiceCase)) });
}
string current = null;
if (_annotation.AllowDefault != BoolDefault.False)
{
if (!field.Optional)
{
if (!field.IsUnknown(state))
{
current = ExpandTemplate(currentChoice, null, noValue, state, field, args, ref buttons);
}
}
else
{
current = ExpandTemplate(currentChoice, null, noValue, state, field, args, ref buttons);
}
}
if (values.Any())
{
if (useButtons)
{
foreach (var value in values)
{
buttons.Add(value);
}
}
else
{
// Buttons do not support multiple selection so we fall back to text
if (((_annotation.ChoiceStyle == ChoiceStyleOptions.Auto || _annotation.ChoiceStyle == ChoiceStyleOptions.AutoText) &&
values.Count() < 4) ||
(_annotation.ChoiceStyle == ChoiceStyleOptions.Inline))
{
// Inline choices
if (_annotation.ChoiceParens == BoolDefault.True)
{
builder.Append('(');
}
var choices = new List <string>();
var i = 1;
foreach (var value in values)
{
choices.Add(string.Format(_annotation.ChoiceFormat, i, Language.Normalize(value.Description, _annotation.ChoiceCase)));
++i;
}
builder.Append(Language.BuildList(choices, _annotation.ChoiceSeparator, _annotation.ChoiceLastSeparator));
if (_annotation.ChoiceParens == BoolDefault.True)
{
builder.Append(')');
}
if (current != null)
{
builder.Append(" ");
builder.Append(current);
}
}
else
{
// Separate line choices
if (current != null)
{
builder.Append(current);
builder.Append(" ");
}
var i = 1;
foreach (var value in values)
{
builder.AppendLine();
builder.Append(" ");
if (!_annotation.AllowNumbers)
{
builder.Append("* ");
}
builder.AppendFormat(_annotation.ChoiceFormat, i, Language.Normalize(value.Description, _annotation.ChoiceCase));
++i;
}
}
}
}
else if (current != null)
{
builder.Append(" ");
builder.Append(current);
}
substitute = builder.ToString();
}
else if (expr.StartsWith("*"))
{
// Status display of active results
var filled = expr.ToLower().Trim().EndsWith("filled");
var builder = new StringBuilder();
if (match.Index > 0)
{
builder.AppendLine();
}
foreach (var entry in (from step in _fields where (!filled || !step.IsUnknown(state)) && step.Role == FieldRole.Value && step.Active(state) select step))
{
var format = new Prompter <T>(Template(entry, TemplateUsage.StatusFormat), _form, null);
builder.Append("* ").AppendLine(format.Prompt(state, entry).Prompt);
}
substitute = builder.ToString();
}
else if (expr.StartsWith("[") && expr.EndsWith("]"))
{
// Generate a list from multiple fields
var paths = expr.Substring(1, expr.Length - 2).Split(' ');
var values = new List <Tuple <IField <T>, object, string> >();
foreach (var spec in paths)
{
if (!spec.StartsWith("{") || !spec.EndsWith("}"))
{
throw new ArgumentException("Only {<field>} references are allowed in lists.");
}
var formatArgs = spec.Substring(1, spec.Length - 2).Trim().Split(':');
var name = formatArgs[0];
if (name == string.Empty && field != null)
{
name = field.Name;
}
var format = (formatArgs.Length > 1 ? "0:" + formatArgs[1] : "0");
var eltDesc = _fields.Field(name);
if (!eltDesc.IsUnknown(state))
{
var value = eltDesc.GetValue(state);
if (value.GetType() != typeof(string) && value.GetType().IsIEnumerable())
{
var eltValues = (value as System.Collections.IEnumerable);
foreach (var elt in eltValues)
{
values.Add(Tuple.Create(eltDesc, elt, format));
}
}
else
{
values.Add(Tuple.Create(eltDesc, eltDesc.GetValue(state), format));
}
}
}
if (values.Count() > 0)
{
var elements = (from elt in values
select Language.Normalize(ValueDescription(elt.Item1, elt.Item2, elt.Item3), _annotation.ValueCase)).ToArray();
substitute = Language.BuildList(elements, _annotation.Separator, _annotation.LastSeparator);
}
}
else if (expr.StartsWith("?"))
{
// Conditional template
var subValue = ExpandTemplate(expr.Substring(1), currentChoice, null, state, field, args, ref buttons);
if (subValue == null)
{
substitute = string.Empty;
}
else
{
substitute = subValue;
}
}
else if (TryParseFormat(expr, out numeric))
{
// Process ad hoc arg
if (numeric < args.Length && args[numeric] != null)
{
substitute = string.Format("{" + expr + "}", args);
}
else
{
foundUnspecified = true;
break;
}
}
else
{
var formatArgs = expr.Split(':');
var name = formatArgs[0];
if (name == string.Empty && field != null)
{
name = field.Name;
}
var pathDesc = _fields.Field(name);
if (pathDesc.IsUnknown(state))
{
if (noValue == null)
{
foundUnspecified = true;
break;
}
substitute = noValue;
}
else
{
var value = pathDesc.GetValue(state);
if (value.GetType() != typeof(string) && value.GetType().IsIEnumerable())
{
var values = (value as System.Collections.IEnumerable);
substitute = Language.BuildList(from elt in values.Cast <object>()
select Language.Normalize(ValueDescription(pathDesc, elt, "0"), _annotation.ValueCase),
_annotation.Separator, _annotation.LastSeparator);
}
else
{
var format = (formatArgs.Length > 1 ? "0:" + formatArgs[1] : "0");
substitute = ValueDescription(pathDesc, value, format);
}
}
}
response.Append(template.Substring(last, match.Index - last)).Append(substitute);
last = match.Index + match.Length;
}
return(foundUnspecified ? null : response.Append(template.Substring(last, template.Length - last)).ToString());
}
