1 files changed, 69 insertions, 0 deletions
diff --git a/crates/shirabe/src/question/strict_confirmation_question.rs b/crates/shirabe/src/question/strict_confirmation_question.rs
index ae1b77a..cfa9c36 100644
--- a/crates/shirabe/src/question/strict_confirmation_question.rs
+++ b/crates/shirabe/src/question/strict_confirmation_question.rs
@@ -1 +1,70 @@
 //! ref: composer/src/Composer/Question/StrictConfirmationQuestion.php
+
+use anyhow::Result;
+use shirabe_external_packages::composer::pcre::preg::Preg;
+use shirabe_external_packages::symfony::console::exception::invalid_argument_exception::InvalidArgumentException;
+use shirabe_external_packages::symfony::console::question::question::Question;
+use shirabe_php_shim::{empty, is_bool, PhpMixed};
+
+pub struct StrictConfirmationQuestion {
+    inner: Question,
+    true_answer_regex: String,
+    false_answer_regex: String,
+}
+
+impl StrictConfirmationQuestion {
+    pub fn new(
+        question: String,
+        default: bool,
+        true_answer_regex: String,
+        false_answer_regex: String,
+    ) -> Self {
+        let inner = Question::new(question, PhpMixed::Bool(default));
+        let mut this = Self {
+            inner,
+            true_answer_regex,
+            false_answer_regex,
+        };
+        let normalizer = this.get_default_normalizer();
+        let validator = this.get_default_validator();
+        this.inner.set_normalizer(normalizer);
+        this.inner.set_validator(validator);
+        this
+    }
+
+    fn get_default_normalizer(&self) -> Box<dyn Fn(&PhpMixed) -> PhpMixed> {
+        let default = self.inner.get_default();
+        let true_regex = self.true_answer_regex.clone();
+        let false_regex = self.false_answer_regex.clone();
+
+        Box::new(move |answer: &PhpMixed| {
+            if is_bool(answer) {
+                return answer.clone();
+            }
+            if empty(answer) && !empty(&default) {
+                return default.clone();
+            }
+            if let PhpMixed::String(s) = answer {
+                if Preg::is_match(&true_regex, s) {
+                    return PhpMixed::Bool(true);
+                }
+                if Preg::is_match(&false_regex, s) {
+                    return PhpMixed::Bool(false);
+                }
+            }
+            PhpMixed::Null
+        })
+    }
+
+    fn get_default_validator(&self) -> Box<dyn Fn(&PhpMixed) -> Result<PhpMixed>> {
+        Box::new(|answer: &PhpMixed| {
+            if !is_bool(answer) {
+                return Err(InvalidArgumentException {
+                    message: "Please answer yes, y, no, or n.".to_string(),
+                    code: 0,
+                }.into());
+            }
+            Ok(answer.clone())
+        })
+    }
+}