use kaptan_config::{Config, ConfigViolation};

#[derive(Config)]
struct Child {
    #[config(id = 1, key = "child.value", unit = "count", range(min = 0, max = 2))]
    value: u32,
}

#[derive(Config)]
#[config(post = Self::validate_complete)]
struct Root {
    child: Child,
}

impl Root {
    fn validate_complete(&self) -> Result<(), ConfigViolation> {
        self.child.validate()
    }
}

fn main() {
    let root = Root {
        child: Child { value: 1 },
    };
    assert_eq!(Root::FIELD_COUNT, 1);
    assert_eq!(root.child.field_value(kaptan_config::FieldId::new(1)), Some(kaptan_config::ConfigValue::U32(1)));
}