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use super::*;

pub trait ServiceExt: super::ResourceBuilder {
    fn new(name: impl ToString) -> Self;
    fn cluster_ip(name: impl ToString) -> Self;
    fn node_port(name: impl ToString) -> Self;
    fn load_balancer(name: impl ToString) -> Self;
    fn external_name(name: impl ToString, external_name: impl ToString) -> Self;
    fn with_labels(
        name: impl ToString,
        labels: impl IntoIterator<Item = (impl ToString, impl ToString)>,
    ) -> Self;

    fn spec(self, spec: corev1::ServiceSpec) -> Self;

    fn selector(
        self,
        match_labels: impl IntoIterator<Item = (impl ToString, impl ToString)>,
    ) -> Self;
}

impl ServiceExt for corev1::Service {
    fn new(name: impl ToString) -> Self {
        let metadata = metadata(name);
        Self {
            metadata,
            // spec: todo!(),
            // status: todo!(),
            ..default()
        }
    }

    fn cluster_ip(name: impl ToString) -> Self {
        Self::with_type(name, "ClusterIP")
    }

    fn node_port(name: impl ToString) -> Self {
        Self::with_type(name, "NodePort")
    }

    fn load_balancer(name: impl ToString) -> Self {
        Self::with_type(name, "LoadBalancer")
    }

    fn external_name(name: impl ToString, external_name: impl ToString) -> Self {
        let service = Self::with_type(name, "ExternalName");
        let mut spec = service.spec.unwrap_or_default();
        spec.external_name = Some(external_name.to_string());
        Self {
            spec: Some(spec),
            ..service
        }
    }

    fn with_labels(
        name: impl ToString,
        labels: impl IntoIterator<Item = (impl ToString, impl ToString)>,
    ) -> Self {
        Self::new(name).labels(labels)
    }

    fn spec(self, spec: corev1::ServiceSpec) -> Self {
        Self {
            spec: Some(spec),
            ..self
        }
    }

    fn selector(self, labels: impl IntoIterator<Item = (impl ToString, impl ToString)>) -> Self {
        let labels = labels
            .into_iter()
            .map(|(key, value)| (key.to_string(), value.to_string()))
            .collect();

        let mut spec = self.spec.unwrap_or_default();
        spec.selector = Some(labels);
        Self {
            spec: Some(spec),
            ..self
        }
    }
}

trait ServiceExtPrivate {
    fn with_type(name: impl ToString, r#type: impl ToString) -> Self;
}

impl ServiceExtPrivate for corev1::Service {
    fn with_type(name: impl ToString, r#type: impl ToString) -> Self {
        let type_ = Some(r#type.to_string());
        let spec = corev1::ServiceSpec {
            type_,
            ..corev1::ServiceSpec::default()
        };
        Self::new(name).spec(spec)
    }
}