1 files changed, 96 insertions, 0 deletions
diff --git a/crates/shirabe-symfony-console/src/input/input_argument.rs b/crates/shirabe-symfony-console/src/input/input_argument.rs
new file mode 100644
index 00000000..ebc8e223
--- /dev/null
+++ b/crates/shirabe-symfony-console/src/input/input_argument.rs
@@ -0,0 +1,96 @@
+//! ref: composer/vendor/symfony/console/Input/InputArgument.php
+
+use crate::exception::invalid_argument_exception::InvalidArgumentException;
+use crate::exception::logic_exception::LogicException;
+use shirabe_php_shim::PhpMixed;
+
+#[derive(Debug, Clone)]
+pub struct InputArgument {
+    name: String,
+    mode: i64,
+    default: PhpMixed,
+    description: String,
+}
+
+impl InputArgument {
+    pub const REQUIRED: i64 = 1;
+    pub const OPTIONAL: i64 = 2;
+    pub const IS_ARRAY: i64 = 4;
+
+    pub fn new(
+        name: String,
+        mode: Option<i64>,
+        description: String,
+        default: PhpMixed,
+    ) -> anyhow::Result<Self> {
+        let mode = match mode {
+            None => Self::OPTIONAL,
+            Some(m) if !(1..=7).contains(&m) => {
+                return Err(InvalidArgumentException::new(format!(
+                    "Argument mode \"{}\" is not valid.",
+                    m
+                ))
+                .into());
+            }
+            Some(m) => m,
+        };
+
+        let mut argument = InputArgument {
+            name,
+            mode,
+            description,
+            default: PhpMixed::Null,
+        };
+
+        argument.set_default(default)?;
+
+        Ok(argument)
+    }
+
+    pub fn get_name(&self) -> &str {
+        &self.name
+    }
+
+    pub fn is_required(&self) -> bool {
+        Self::REQUIRED == (Self::REQUIRED & self.mode)
+    }
+
+    pub fn is_array(&self) -> bool {
+        Self::IS_ARRAY == (Self::IS_ARRAY & self.mode)
+    }
+
+    pub fn set_default(&mut self, default: PhpMixed) -> anyhow::Result<()> {
+        if self.is_required() && !matches!(default, PhpMixed::Null) {
+            return Err(LogicException::new(
+                "Cannot set a default value except for InputArgument::OPTIONAL mode.".to_string(),
+            )
+            .into());
+        }
+
+        let default = if self.is_array() {
+            match default {
+                PhpMixed::Null => PhpMixed::List(vec![]),
+                PhpMixed::List(_) => default,
+                _ => {
+                    return Err(LogicException::new(
+                        "A default value for an array argument must be an array.".to_string(),
+                    )
+                    .into());
+                }
+            }
+        } else {
+            default
+        };
+
+        self.default = default;
+        Ok(())
+    }
+
+    pub fn get_default(&self) -> &PhpMixed {
+        &self.default
+    }
+
+    pub fn get_description(&self) -> &str {
+        &self.description
+    }
+}