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mod default_impls;
pub mod helpers;
use std::fmt::Debug;
use mopa;

pub trait ValueAsStringByRef {
	fn as_string_ref<'a>(&'a self, storage: &'a mut Vec<String>) -> &'a str;
}

pub trait ValueAsString {
	fn as_string(&self) -> String;
}

impl<T> ValueAsStringByRef for T where T: ValueAsString {
	fn as_string_ref<'a>(&'a self, storage: &'a mut Vec<String>) -> &'a str {
		storage.push(self.as_string());
		storage.last().unwrap()
	}
}

pub trait ValueAsIterator {
	fn get_iterator<'a>(&'a self) -> Option<Box<Iterator<Item=&Value> + 'a>>;
}

pub trait ValueAsObject {
	fn get_property(&self, name: &str) -> Option<&Value>;
}

pub trait ValueAsBool {
	fn as_bool(&self) -> bool;
}

pub trait ValueClone {
    fn clone_box(&self) -> Box<Value>;
}

impl<T> ValueClone for T where T: 'static + Value + Clone {
    fn clone_box(&self) -> Box<Value> {
        Box::new(self.clone())
    }
}

impl Clone for Box<Value> {
    fn clone(&self) -> Box<Value> {
        self.clone_box()
    }
}

// We cannot use Clone trait here because it will cause trait to be not object-safe
pub trait Value: mopa::Any + ValueAsStringByRef + ValueAsIterator + ValueAsObject + ValueAsBool + ValueClone + Debug {}
impl<T> Value for T where T: mopa::Any + ValueAsStringByRef + ValueAsIterator + ValueAsObject + ValueAsBool+ ValueClone + Debug {}
mopafy!(Value);