1 files changed, 86 insertions, 0 deletions
diff --git a/crates/shirabe/src/console/input/input_option.rs b/crates/shirabe/src/console/input/input_option.rs
index 36d7846..069c3f4 100644
--- a/crates/shirabe/src/console/input/input_option.rs
+++ b/crates/shirabe/src/console/input/input_option.rs
@@ -1 +1,87 @@
 //! ref: composer/src/Composer/Console/Input/InputOption.php
+
+use anyhow::Result;
+use shirabe_external_packages::symfony::console::completion::completion_input::CompletionInput;
+use shirabe_external_packages::symfony::console::completion::completion_suggestions::CompletionSuggestions;
+use shirabe_external_packages::symfony::console::completion::suggestion::Suggestion;
+use shirabe_external_packages::symfony::console::input::input_option::InputOption as BaseInputOption;
+use shirabe_php_shim::LogicException;
+use shirabe_php_shim::PhpMixed;
+
+pub enum SuggestedValues {
+    List(Vec<String>),
+    Closure(Box<dyn Fn(&CompletionInput, &mut CompletionSuggestions) -> Vec<StringOrSuggestion>>),
+}
+
+impl std::fmt::Debug for SuggestedValues {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            SuggestedValues::List(list) => write!(f, "SuggestedValues::List({:?})", list),
+            SuggestedValues::Closure(_) => write!(f, "SuggestedValues::Closure(<closure>)"),
+        }
+    }
+}
+
+pub enum StringOrSuggestion {
+    Str(String),
+    Suggestion(Suggestion),
+}
+
+#[derive(Debug)]
+pub struct InputOption {
+    inner: BaseInputOption,
+    suggested_values: SuggestedValues,
+}
+
+impl InputOption {
+    pub fn new(
+        name: &str,
+        shortcut: Option<PhpMixed>,
+        mode: Option<i64>,
+        description: &str,
+        default: Option<PhpMixed>,
+        suggested_values: SuggestedValues,
+    ) -> Result<Self> {
+        let inner = BaseInputOption::new(name, shortcut, mode, description, default)?;
+        let this = Self {
+            inner,
+            suggested_values,
+        };
+
+        if let SuggestedValues::List(ref list) = this.suggested_values {
+            if !list.is_empty() && !this.inner.accept_value() {
+                return Err(LogicException {
+                    message: "Cannot set suggested values if the option does not accept a value.".to_string(),
+                    code: 0,
+                }.into());
+            }
+        } else if let SuggestedValues::Closure(_) = this.suggested_values {
+            if !this.inner.accept_value() {
+                return Err(LogicException {
+                    message: "Cannot set suggested values if the option does not accept a value.".to_string(),
+                    code: 0,
+                }.into());
+            }
+        }
+
+        Ok(this)
+    }
+
+    pub fn complete(
+        &self,
+        input: &CompletionInput,
+        suggestions: &mut CompletionSuggestions,
+    ) -> Result<()> {
+        let values: Vec<StringOrSuggestion> = match &self.suggested_values {
+            SuggestedValues::List(list) => list
+                .iter()
+                .map(|s| StringOrSuggestion::Str(s.clone()))
+                .collect(),
+            SuggestedValues::Closure(closure) => closure(input, suggestions),
+        };
+        if !values.is_empty() {
+            suggestions.suggest_values(values);
+        }
+        Ok(())
+    }
+}