//! kubeadm configuration data types
//!
//! The Kubernetes API reference does not include a specification for the
//! `Config` resource, and as such there is no model for it in [`k8s_openapi`].
//! Since *dynk8s* needs to read and write objects of this type, to provide
//! configuration for `kubeadm` on dynamic nodes, a subset of the required
//! model is defined here.
use serde::{Deserialize, Serialize};

/// Cluster information
#[derive(Clone, Debug, Deserialize, Serialize)]
#[serde(rename_all = "kebab-case")]
pub struct ClusterInfo {
    /// X.509 certificate of the Kubernetes certificate authority
    pub certificate_authority_data: String,
    /// URL of the Kubernetes API server
    pub server: String,
}

/// Cluster definition
#[derive(Clone, Debug, Deserialize, Serialize)]
pub struct Cluster {
    /// Cluster information
    pub cluster: ClusterInfo,
    /// Cluster name
    pub name: String,
}

/// kubeconfig context information
#[derive(Clone, Debug, Deserialize, Serialize)]
pub struct ContextInfo {
    /// The cluster to use
    pub cluster: String,
    /// The user to use
    pub user: String,
}

/// kubeconfig context definition
#[derive(Clone, Debug, Deserialize, Serialize)]
pub struct Context {
    /// Context information
    pub context: ContextInfo,
    /// Context name
    pub name: String,
}

/// User information
#[derive(Clone, Debug, Deserialize, Serialize)]
pub struct UserInfo {
    /// Bootstrap token for authentication
    pub token: String,
}

/// User definition
#[derive(Clone, Debug, Deserialize, Serialize)]
pub struct User {
    /// User name
    pub name: String,
    /// User information
    pub user: UserInfo,
}

/// kubeconfig
#[derive(Clone, Debug, Deserialize, Serialize)]
pub struct KubeConfig {
    #[serde(rename = "apiVersion")]
    pub api_version: String,
    pub kind: String,
    /// List of defined clusters
    pub clusters: Vec<Cluster>,
    /// List of defined contexts (user–cluster associations)
    pub contexts: Option<Vec<Context>>,
    #[serde(rename = "current-context")]
    /// Current context
    pub current_context: String,
    /// List of defined users
    pub users: Option<Vec<User>>,
}

impl Default for KubeConfig {
    fn default() -> Self {
        Self {
            api_version: "v1".into(),
            kind: "Config".into(),
            clusters: vec![],
            contexts: None,
            current_context: "".into(),
            users: None,
        }
    }
}