/*
Copyright 2021 The Kubernetes Authors.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package v1beta1

import (
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
	clusterv1 "sigs.k8s.io/cluster-api/api/v1beta1"
)

const (
	// ClusterFinalizer allows ReconcileAzureCluster to clean up Azure resources associated with AzureCluster before
	// removing it from the apiserver.
	ClusterFinalizer = "azurecluster.infrastructure.cluster.x-k8s.io"

	// ClusterLabelNamespace indicates the namespace of the cluster.
	ClusterLabelNamespace = "azurecluster.infrastructure.cluster.x-k8s.io/cluster-namespace"
)

// AzureClusterSpec defines the desired state of AzureCluster.
type AzureClusterSpec struct {
	AzureClusterClassSpec `json:",inline"`

	// NetworkSpec encapsulates all things related to Azure network.
	// +optional
	NetworkSpec NetworkSpec `json:"networkSpec,omitempty"`

	// +optional
	ResourceGroup string `json:"resourceGroup,omitempty"`

	// BastionSpec encapsulates all things related to the Bastions in the cluster.
	// +optional
	BastionSpec BastionSpec `json:"bastionSpec,omitempty"`

	// ControlPlaneEndpoint represents the endpoint used to communicate with the control plane. It is not recommended to set
	// this when creating an AzureCluster as CAPZ will set this for you. However, if it is set, CAPZ will not change it.
	// +optional
	ControlPlaneEndpoint clusterv1.APIEndpoint `json:"controlPlaneEndpoint,omitempty"`
}

// AzureClusterStatus defines the observed state of AzureCluster.
type AzureClusterStatus struct {
	// FailureDomains specifies the list of unique failure domains for the location/region of the cluster.
	// A FailureDomain maps to Availability Zone with an Azure Region (if the region support them). An
	// Availability Zone is a separate data center within a region and they can be used to ensure
	// the cluster is more resilient to failure.
	// See: https://learn.microsoft.com/azure/reliability/availability-zones-overview
	// This list will be used by Cluster API to try and spread the machines across the failure domains.
	// +optional
	FailureDomains clusterv1.FailureDomains `json:"failureDomains,omitempty"`

	// Ready is true when the provider resource is ready.
	// +optional
	Ready bool `json:"ready"`

	// Conditions defines current service state of the AzureCluster.
	// +optional
	Conditions clusterv1.Conditions `json:"conditions,omitempty"`

	// LongRunningOperationStates saves the states for Azure long-running operations so they can be continued on the
	// next reconciliation loop.
	// +optional
	LongRunningOperationStates Futures `json:"longRunningOperationStates,omitempty"`
}

// +kubebuilder:object:root=true
// +kubebuilder:printcolumn:name="Cluster",type="string",JSONPath=".metadata.labels.cluster\\.x-k8s\\.io/cluster-name",description="Cluster to which this AzureCluster belongs"
// +kubebuilder:printcolumn:name="Ready",type="string",JSONPath=".status.conditions[?(@.type=='Ready')].status"
// +kubebuilder:printcolumn:name="Reason",type="string",JSONPath=".status.conditions[?(@.type=='Ready')].reason"
// +kubebuilder:printcolumn:name="Message",type="string",priority=1,JSONPath=".status.conditions[?(@.type=='Ready')].message"
// +kubebuilder:printcolumn:name="Resource Group",type="string",priority=1,JSONPath=".spec.resourceGroup"
// +kubebuilder:printcolumn:name="SubscriptionID",type="string",priority=1,JSONPath=".spec.subscriptionID"
// +kubebuilder:printcolumn:name="Location",type="string",priority=1,JSONPath=".spec.location"
// +kubebuilder:printcolumn:name="Endpoint",type="string",priority=1,JSONPath=".spec.controlPlaneEndpoint.host",description="Control Plane Endpoint"
// +kubebuilder:printcolumn:name="Age",type="date",JSONPath=".metadata.creationTimestamp",description="Time duration since creation of this AzureCluster"
// +kubebuilder:resource:path=azureclusters,scope=Namespaced,categories=cluster-api
// +kubebuilder:storageversion
// +kubebuilder:subresource:status

// AzureCluster is the Schema for the azureclusters API.
type AzureCluster struct {
	metav1.TypeMeta   `json:",inline"`
	metav1.ObjectMeta `json:"metadata,omitempty"`

	Spec   AzureClusterSpec   `json:"spec,omitempty"`
	Status AzureClusterStatus `json:"status,omitempty"`
}

// +kubebuilder:object:root=true

// AzureClusterList contains a list of AzureClusters.
type AzureClusterList struct {
	metav1.TypeMeta `json:",inline"`
	metav1.ListMeta `json:"metadata,omitempty"`
	Items           []AzureCluster `json:"items"`
}

// GetConditions returns the list of conditions for an AzureCluster API object.
func (c *AzureCluster) GetConditions() clusterv1.Conditions {
	return c.Status.Conditions
}

// SetConditions will set the given conditions on an AzureCluster object.
func (c *AzureCluster) SetConditions(conditions clusterv1.Conditions) {
	c.Status.Conditions = conditions
}

// GetFutures returns the list of long running operation states for an AzureCluster API object.
func (c *AzureCluster) GetFutures() Futures {
	return c.Status.LongRunningOperationStates
}

// SetFutures will set the given long running operation states on an AzureCluster object.
func (c *AzureCluster) SetFutures(futures Futures) {
	c.Status.LongRunningOperationStates = futures
}

func init() {
	SchemeBuilder.Register(&AzureCluster{}, &AzureClusterList{})
}
