use rusteval::{Interactive, Methods};

#[derive(Interactive, Debug, Default)]
struct TestStruct {
    a: bool,
}

#[Methods]
impl TestStruct {
    fn try_ping(&self) -> Result<String, ()> {
        Ok("pong".into())
    }
}

#[derive(Interactive, Debug, Default)]
struct ParentStruct {
    child: TestStruct,
}

#[test]
fn test_get_child() {
    let parent_struct = ParentStruct::default();

    parent_struct.eval_field("child", &mut |result| {
        assert_eq!(format!("{:?}", result.unwrap()), "TestStruct { a: false }")
    });
}

#[test]
fn test_get_child_field() {
    let parent_struct = ParentStruct::default();

    let child = parent_struct.get_field("child").unwrap();

    child.eval_field("a", &mut |result| {
        assert_eq!(format!("{:?}", result.unwrap()), "false")
    });
}

#[test]
fn test_call_child_method() {
    let mut parent_struct = ParentStruct::default();

    let child = parent_struct.get_field_mut("child").unwrap();

    child
        .try_as_methods_mut()
        .unwrap()
        .eval_method_mut("try_ping", "", &mut |result| {
            assert_eq!(format!("{:?}", result.unwrap()), "Ok(\"pong\")")
        });
}