use kaptan_config::{ConfigAggregate, ConfigSection, ConfigViolation, ValidateFields};
use kaptan_config_derive::ConfigValidate;

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

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

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

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