v1alpha1

type Node struct {
	// StorageClassName references a storage class to allocate volume from
	StorageClassName string `json:"storageClassName"`

	// AccessMode allows for overriding implicit ReadWriteOnce accessmode
	AccessMode corev1.PersistentVolumeAccessMode `json:"accessMode,omitempty"`

	// Tags for Node
	Tags NodeTags `json:"tags,omitempty"`
}

type NodeTags struct {
	// NoSync If set to true the node will never be selected as a synchronous replica.
	NoSync bool `json:"nosync,omitempty"`

	// NoFailover controls whether this node is allowed to participate in the leader
	// race and become a leader. Defaults to false, meaning this node _can_
	// participate in leader races.
	NoFailover bool `json:"nofailover,omitempty"`
}

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

	Spec   PatroniPostgresSpec   `json:"spec,omitempty"`
	Status PatroniPostgresStatus `json:"status,omitempty"`
}

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

type PatroniPostgresSpec struct {
	// Ignore marks this instance to be ignored by the operator
	Ignore bool `json:"ignore,omitempty"`

	// +kubebuilder:validation:Enum:=13;15
	Version int `json:"version"`

	// Nodes holds nodes's desired configuration.
	// Thus it implicitly defines the number of PostgreSQL nodes (replicas).
	// +kubebuilder:validation:MinItems:=1
	Nodes []Node `json:"nodes"`

	// VolumeSize sets size for volumes
	VolumeSize resource.Quantity `json:"volumeSize"`

	// ServiceType defines primary service type
	// +kubebuilder:validation:Enum:=ClusterIP;NodePort;LoadBalancer
	// +kubebuilder:default:=ClusterIP
	ServiceType corev1.ServiceType `json:"serviceType,omitempty"`

	// Annotations will be added to PODs
	Annotations map[string]string `json:"annotations,omitempty"`

	// PodAntiAffinityTopologyKey defines topology key used for PodAntiAffinity
	// empty means no PodAntiAffinity
	// +optional
	PodAntiAffinityTopologyKey string `json:"podAntiAffinityTopologyKey,omitempty"`

	// ImagePullSecrets is an optional list of references to secrets in the same namespace to use for pulling any of the images used by this PodSpec.
	// If specified, these secrets will be passed to individual puller implementations for them to use.
	// More info: https://kubernetes.io/docs/concepts/containers/images#specifying-imagepullsecrets-on-a-pod
	// +optional
	// +patchMergeKey=name
	// +patchStrategy=merge
	ImagePullSecrets []corev1.LocalObjectReference `json:"imagePullSecrets,omitempty"`

	// NodeSelector is a selector which must be true for the pod to fit on a node.
	// Selector which must match a node's labels for the pod to be scheduled on that node.
	// More info: https://kubernetes.io/docs/concepts/configuration/assign-pod-node/
	// +optional
	// +mapType=atomic
	NodeSelector map[string]string `json:"nodeSelector,omitempty"`

	// If specified, the pod's scheduling constraints
	// +optional
	Affinity *corev1.Affinity `json:"affinity,omitempty"`

	// If specified, the pod's tolerations.
	// +optional
	Tolerations []corev1.Toleration `json:"tolerations,omitempty"`

	// Compute Resources required by postgres and upgrade containers.
	// More info: https://kubernetes.io/docs/concepts/configuration/manage-resources-containers/
	// +optional
	Resources corev1.ResourceRequirements `json:"resources,omitempty"`

	// ExtraContainers lists extra containers added to pods
	// +optional
	ExtraContainers []corev1.Container `json:"extraContainers,omitempty"`
}

type PatroniPostgresState string

type PatroniPostgresStatus struct {
	// VolumeStatuses holds status for each allocated volume
	VolumeStatuses []VolumeStatus `json:"volumeStatuses"`

	// Ready replicas are ready
	Ready int32 `json:"ready"`

	// Version represents current cluster version
	Version int `json:"version"`

	// State represents cluster state
	State PatroniPostgresState `json:"state"`

	// UpgradeVersion represents upgrade target version
	UpgradeVersion int `json:"upgradeVersion,omitempty"`
}

type VolumeStatus struct {
	// ClaimName holds PersistentVolumeClaim's name
	ClaimName string `json:"claimName"`

	// Phase mirrors PersistentVolumeClaimStatus.Phase
	Phase corev1.PersistentVolumeClaimPhase `json:"phase,omitempty"`

	// Capacity mirrors PersistentVolumeClaimStatus.Capacity[ResourceStorage]
	Capacity resource.Quantity `json:"capacity,omitempty"`
}