v1alpha1

type CronHorizontalPodAutoscaler struct {
	metav1.TypeMeta   `json:",inline"`
	metav1.ObjectMeta `json:"metadata,omitempty"`

	Spec   CronHorizontalPodAutoscalerSpec   `json:"spec,omitempty"`
	Status CronHorizontalPodAutoscalerStatus `json:"status,omitempty"`
}

type CronHorizontalPodAutoscalerList struct {
	metav1.TypeMeta `json:",inline"`
	metav1.ListMeta `json:"metadata,omitempty"`
	Items           []CronHorizontalPodAutoscaler `json:"items"`
}

type CronHorizontalPodAutoscalerScheduledPatch struct {
	// Name is the name of this schedule.
	// +kubebuilder:validation:MaxLength=16
	// +kubebuilder:validation:MinLength=1
	// +kubebuilder:validation:Pattern=[a-zA-Z0-9\-]+
	Name string `json:"name"`
	// Schedule is a schedule to apply the HPA in the cron format like `0 */2 * * *`.
	// See https://pkgo.dev/github.com/robfig/cron
	Schedule string `json:"schedule"`
	// Timezone is a timezone of the schedule
	Timezone string `json:"timezone"`
	// Patch is a patch to apply to the template at the schedule.
	Patch *HPAPatch `json:"patch,omitempty"`
}

type CronHorizontalPodAutoscalerSpec struct {
	// Template is the template of HPA.
	Template HPATemplate `json:"template"`
	// schedules contain the specifications of HPA with a schedule.
	ScheduledPatches []CronHorizontalPodAutoscalerScheduledPatch `json:"scheduledPatches"`
}

type CronHorizontalPodAutoscalerStatus struct {
	// LastCronTimestamp is the time of last cron job.
	LastCronTimestamp *metav1.Time `json:"lastCronTimestamp,omitempty"`
	// LastScheduledPatchName is the last patch name applied to the HPA.
	LastScheduledPatchName string `json:"lastScheduledPatchName,omitempty"`
}

type HPAPatch struct {
	// minReplicas is the lower limit for the number of replicas to which the autoscaler
	// can scale down.  It defaults to 1 pod.  minReplicas is allowed to be 0 if the
	// alpha feature gate HPAScaleToZero is enabled and at least one Object or External
	// metric is configured.  Scaling is active as long as at least one metric value is
	// available.
	// +optional
	MinReplicas *int32 `json:"minReplicas,omitempty"`
	// maxReplicas is the upper limit for the number of replicas to which the autoscaler can scale up.
	// It cannot be less that minReplicas.
	// +optional
	MaxReplicas *int32 `json:"maxReplicas,omitempty"`
	// metrics contains the specifications for which to use to calculate the
	// desired replica count (the maximum replica count across all metrics will
	// be used).  The desired replica count is calculated multiplying the
	// ratio between the target value and the current value by the current
	// number of pods.  Ergo, metrics used must decrease as the pod count is
	// increased, and vice-versa.  See the individual metric source types for
	// more information about how each type of metric must respond.
	// +optional
	Metrics []autoscalingv2.MetricSpec `json:"metrics,omitempty"`
}

type HPATemplate struct {
	Metadata *TemplateMetadata                         `json:"metadata,omitempty"`
	Spec     autoscalingv2.HorizontalPodAutoscalerSpec `json:"spec"`
}

type TemplateMetadata struct {
	// Map of string keys and values that can be used to organize and categorize
	// (scope and select) objects. May match selectors of replication controllers
	// and services.
	// More info: http://kubernetes.io/docs/user-guide/labels
	// +optional
	Labels map[string]string `json:"labels,omitempty"`
	// Annotations is an unstructured key value map stored with a resource that may be
	// set by external tools to store and retrieve arbitrary metadata. They are not
	// queryable and should be preserved when modifying objects.
	// More info: http://kubernetes.io/docs/user-guide/annotations
	// +optional
	Annotations map[string]string `json:"annotations,omitempty"`
}