package meta

import "fmt"

// Much of this file was originally forked from github.com/fluxcd/pkg/meta to
// avoid the dependency tangle-ups that can occur in a large K8s Golang repository,
// in the view that it is better to fork and iterate on a small bit of code to
// avoid depending on a large bit of code.

// LocalObjectReference contains enough information to locate the referenced
// Kubernetes resource object.
type LocalObjectReference struct {
	// Name of the referent.
	// +kubebuilder:validation:MinLength=1
	// +kubebuilder:validation:MaxLength=253
	// +required
	Name string `json:"name"`
}

// NamespacedObjectReference contains enough information to locate the referenced
// Kubernetes resource object in any namespace.
type NamespacedObjectReference struct {
	// Name of the referent.
	// +kubebuilder:validation:MinLength=1
	// +kubebuilder:validation:MaxLength=253
	// +required
	Name string `json:"name"`

	// Namespace of the referent, when not specified it acts as LocalObjectReference.
	// +kubebuilder:validation:MinLength=1
	// +kubebuilder:validation:MaxLength=253
	// +optional
	Namespace string `json:"namespace,omitempty"`
}

// String implements Stringer for NamespacedObjectReference so it can be passed
// directly to string templates
func (nor NamespacedObjectReference) String() string {
	if nor.Namespace == "" {
		return nor.Name
	}
	return fmt.Sprintf("%s/%s", nor.Namespace, nor.Name)
}

// NamespacedObjectKindReference contains enough information to locate the typed
// referenced Kubernetes resource object in any namespace.
type NamespacedObjectKindReference struct {
	// API version of the referent, if not specified the Kubernetes preferred version will be used.
	// +optional
	APIVersion string `json:"apiVersion,omitempty"`

	// Kind of the referent.
	// +required
	Kind string `json:"kind"`

	// Name of the referent.
	// +kubebuilder:validation:MinLength=1
	// +kubebuilder:validation:MaxLength=253
	// +required
	Name string `json:"name"`

	// Namespace of the referent, when not specified it acts as LocalObjectReference.
	// +kubebuilder:validation:MinLength=1
	// +kubebuilder:validation:MaxLength=253
	// +optional
	Namespace string `json:"namespace,omitempty"`
}