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//! ref: composer/vendor/symfony/console/Question/ConfirmationQuestion.php
use crate::symfony::console::question::Question;
use shirabe_php_shim::PhpMixed;
/// Represents a yes/no question.
#[derive(Debug)]
pub struct ConfirmationQuestion {
inner: Question,
true_answer_regex: String,
}
impl ConfirmationQuestion {
/// `$question` The question to ask to the user.
/// `$default` The default answer to return, true or false.
/// `$trueAnswerRegex` A regex to match the "yes" answer.
pub fn new(question: String, default: bool, true_answer_regex: String) -> Self {
let mut this = Self {
inner: Question::new(question, Some(PhpMixed::Bool(default))),
true_answer_regex,
};
let normalizer = this.get_default_normalizer();
this.inner.set_normalizer(normalizer);
this
}
/// Returns the default answer normalizer.
fn get_default_normalizer(&self) -> Box<dyn Fn(PhpMixed) -> PhpMixed> {
let default = self.inner.get_default();
let regex = self.true_answer_regex.clone();
Box::new(move |answer: PhpMixed| {
if let PhpMixed::Bool(_) = answer {
return answer;
}
let answer_is_true = {
let mut matches: Vec<Option<String>> = Vec::new();
shirabe_php_shim::preg_match(
®ex,
&shirabe_php_shim::strval(&answer),
&mut matches,
) != 0
};
// false === $default
if matches!(default, PhpMixed::Bool(false)) {
// $answer && $answerIsTrue
return PhpMixed::Bool(!shirabe_php_shim::empty(&answer) && answer_is_true);
}
// '' === $answer || $answerIsTrue
let answer_is_empty_string = matches!(&answer, PhpMixed::String(s) if s.is_empty());
PhpMixed::Bool(answer_is_empty_string || answer_is_true)
})
}
}
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