v1alpha1

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

	Spec   BatchReleaseSpec   `json:"spec,omitempty"`
	Status BatchReleaseStatus `json:"status,omitempty"`
}

type BatchReleaseBatchStateType string

type BatchReleaseCanaryStatus struct {
	// CurrentBatchState indicates the release state of the current batch.
	CurrentBatchState BatchReleaseBatchStateType `json:"batchState,omitempty"`
	// The current batch the rollout is working on/blocked, it starts from 0
	CurrentBatch int32 `json:"currentBatch"`
	// BatchReadyTime is the ready timestamp of the current batch or the last batch.
	// This field is updated once a batch ready, and the batches[x].pausedSeconds
	// relies on this field to calculate the real-time duration.
	BatchReadyTime *metav1.Time `json:"batchReadyTime,omitempty"`
	// UpdatedReplicas is the number of upgraded Pods.
	UpdatedReplicas int32 `json:"updatedReplicas,omitempty"`
	// UpdatedReadyReplicas is the number upgraded Pods that have a Ready Condition.
	UpdatedReadyReplicas int32 `json:"updatedReadyReplicas,omitempty"`
}

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

type BatchReleaseSpec struct {
	// TargetRef contains the GVK and name of the workload that we need to upgrade to.
	TargetRef ObjectRef `json:"targetReference"`
	// ReleasePlan is the details on how to rollout the resources
	ReleasePlan ReleasePlan `json:"releasePlan"`
}

type BatchReleaseStatus struct {
	// Conditions represents the observed process state of each phase during executing the release plan.
	Conditions []RolloutCondition `json:"conditions,omitempty"`
	// CanaryStatus describes the state of the canary rollout.
	CanaryStatus BatchReleaseCanaryStatus `json:"canaryStatus,omitempty"`
	// StableRevision is the pod-template-hash of stable revision pod template.
	StableRevision string `json:"stableRevision,omitempty"`
	// UpdateRevision is the pod-template-hash of update revision pod template.
	UpdateRevision string `json:"updateRevision,omitempty"`
	// ObservedGeneration is the most recent generation observed for this BatchRelease.
	// It corresponds to this BatchRelease's generation, which is updated on mutation
	// by the API Server, and only if BatchRelease Spec was changed, its generation will increase 1.
	ObservedGeneration int64 `json:"observedGeneration,omitempty"`
	// ObservedWorkloadReplicas is observed replicas of target referenced workload.
	// This field is designed to deal with scaling event during rollout, if this field changed,
	// it means that the workload is scaling during rollout.
	ObservedWorkloadReplicas int32 `json:"observedWorkloadReplicas,omitempty"`
	// Count of hash collisions for creating canary Deployment. The controller uses this
	// field as a collision avoidance mechanism when it needs to create the name for the
	// newest canary Deployment.
	// +optional
	CollisionCount *int32 `json:"collisionCount,omitempty"`
	// ObservedReleasePlanHash is a hash code of observed itself releasePlan.Batches.
	ObservedReleasePlanHash string `json:"observedReleasePlanHash,omitempty"`
	// Phase is the release plan phase, which indicates the current state of release
	// plan state machine in BatchRelease controller.
	Phase RolloutPhase `json:"phase,omitempty"`
}

type CanaryStatus struct {
	// observedWorkloadGeneration is the most recent generation observed for this Rollout ref workload generation.
	ObservedWorkloadGeneration int64 `json:"observedWorkloadGeneration,omitempty"`
	// RolloutHash from rollout.spec object
	RolloutHash string `json:"rolloutHash,omitempty"`
	// CanaryService holds the name of a service which selects pods with canary version and don't select any pods with stable version.
	CanaryService string `json:"canaryService"`
	// CanaryRevision is calculated by rollout based on podTemplateHash, and the internal logic flow uses
	// It may be different from rs podTemplateHash in different k8s versions, so it cannot be used as service selector label
	// +optional
	CanaryRevision string `json:"canaryRevision"`
	// pod template hash is used as service selector label
	PodTemplateHash string `json:"podTemplateHash"`
	// CanaryReplicas the numbers of canary revision pods
	CanaryReplicas int32 `json:"canaryReplicas"`
	// CanaryReadyReplicas the numbers of ready canary revision pods
	CanaryReadyReplicas int32 `json:"canaryReadyReplicas"`
	// CurrentStepIndex defines the current step of the rollout is on. If the current step index is null, the
	// controller will execute the rollout.
	// +optional
	CurrentStepIndex int32           `json:"currentStepIndex"`
	CurrentStepState CanaryStepState `json:"currentStepState"`
	Message          string          `json:"message,omitempty"`
	// The last time this step pods is ready.
	LastUpdateTime *metav1.Time `json:"lastReadyTime,omitempty"`
}

type CanaryStep struct {
	// SetWeight sets what percentage of the canary pods should receive
	Weight int32 `json:"weight,omitempty"`
	// Replicas is the number of expected canary pods in this batch
	// it can be an absolute number (ex: 5) or a percentage of total pods.
	Replicas *intstr.IntOrString `json:"replicas,omitempty"`
	// Pause defines a pause stage for a rollout, manual or auto
	// +optional
	Pause RolloutPause `json:"pause,omitempty"`
}

type CanaryStepState string

type CanaryStrategy struct {
	// Steps define the order of phases to execute release in batches(20%, 40%, 60%, 80%, 100%)
	// +optional
	Steps []CanaryStep `json:"steps,omitempty"`
	// TrafficRoutings hosts all the supported service meshes supported to enable more fine-grained traffic routing
	// todo current only support one
	TrafficRoutings []*TrafficRouting `json:"trafficRoutings,omitempty"`
}

type DeploymentReleaseStrategyType string

type IngressTrafficRouting struct {
	// Name refers to the name of an `Ingress` resource in the same namespace as the `Rollout`
	Name string `json:"name"`
}

type ObjectRef struct {
	// WorkloadRef contains enough information to let you identify a workload for Rollout
	// Batch release of the bypass
	WorkloadRef *WorkloadRef `json:"workloadRef,omitempty"`
}

type ObjectRefType string

type ReleaseBatch struct {
	// CanaryReplicas is the number of upgraded pods that should have in this batch.
	// it can be an absolute number (ex: 5) or a percentage of workload replicas.
	// batches[i].canaryReplicas should less than or equal to batches[j].canaryReplicas if i < j.
	CanaryReplicas intstr.IntOrString `json:"canaryReplicas"`
	// The wait time, in seconds, between instances batches, default = 0
	// +optional
	PauseSeconds int64 `json:"pauseSeconds,omitempty"`
}

type ReleasePlan struct {
	// Batches is the details on each batch of the ReleasePlan.
	//Users can specify their batch plan in this field, such as:
	// batches:
	// - canaryReplicas: 1  # batches 0
	// - canaryReplicas: 2  # batches 1
	// - canaryReplicas: 5  # batches 2
	// Not that these canaryReplicas should be a non-decreasing sequence.
	// +optional
	Batches []ReleaseBatch `json:"batches"`
	// All pods in the batches up to the batchPartition (included) will have
	// the target resource specification while the rest still is the stable revision.
	// This is designed for the operators to manually rollout
	// Default is nil, which means no partition and will release all batches.
	// BatchPartition start from 0.
	// +optional
	BatchPartition *int32 `json:"batchPartition,omitempty"`
	// Paused the rollout, the release progress will be paused util paused is false.
	// default is false
	// +optional
	Paused bool `json:"paused,omitempty"`
}

type ReleaseStrategyType string

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

	Spec   RolloutSpec   `json:"spec,omitempty"`
	Status RolloutStatus `json:"status,omitempty"`
}

type RolloutCondition struct {
	// Type of rollout condition.
	Type RolloutConditionType `json:"type"`
	// Phase of the condition, one of True, False, Unknown.
	Status corev1.ConditionStatus `json:"status"`
	// The last time this condition was updated.
	LastUpdateTime metav1.Time `json:"lastUpdateTime,omitempty"`
	// Last time the condition transitioned from one status to another.
	LastTransitionTime metav1.Time `json:"lastTransitionTime,omitempty"`
	// The reason for the condition's last transition.
	Reason string `json:"reason"`
	// A human readable message indicating details about the transition.
	Message string `json:"message"`
}

type RolloutConditionType string

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

type RolloutPause struct {
	// Duration the amount of time to wait before moving to the next step.
	// +optional
	Duration *int32 `json:"duration,omitempty"`
}

type RolloutPhase string

type RolloutSpec struct {
	// INSERT ADDITIONAL SPEC FIELDS - desired state of cluster
	// Important: Run "make" to regenerate code after modifying this file
	// ObjectRef indicates workload
	ObjectRef ObjectRef `json:"objectRef"`
	// rollout strategy
	Strategy RolloutStrategy `json:"strategy"`
}

type RolloutStatus struct {

	// observedGeneration is the most recent generation observed for this Rollout.
	ObservedGeneration int64 `json:"observedGeneration,omitempty"`
	// CanaryRevision the hash of the canary pod template
	// +optional
	//CanaryRevision string `json:"canaryRevision,omitempty"`
	// StableRevision indicates the revision pods that has successfully rolled out
	StableRevision string `json:"stableRevision,omitempty"`
	// Conditions a list of conditions a rollout can have.
	// +optional
	Conditions []RolloutCondition `json:"conditions,omitempty"`
	// Canary describes the state of the canary rollout
	// +optional
	CanaryStatus *CanaryStatus `json:"canaryStatus,omitempty"`
	// +optional
	//BlueGreenStatus *BlueGreenStatus `json:"blueGreenStatus,omitempty"`
	// Phase is the rollout phase.
	Phase RolloutPhase `json:"phase,omitempty"`
	// Message provides details on why the rollout is in its current phase
	Message string `json:"message,omitempty"`
}

type RolloutStrategy struct {
	// Paused indicates that the Rollout is paused.
	// Default value is false
	Paused bool `json:"paused,omitempty"`
	// +optional
	Canary *CanaryStrategy `json:"canary,omitempty"`
}

type RolloutStrategyType string

type TrafficRouting struct {
	// Service holds the name of a service which selects pods with stable version and don't select any pods with canary version.
	Service string `json:"service"`
	// Optional duration in seconds the traffic provider(e.g. nginx ingress controller) consumes the service, ingress configuration changes gracefully.
	GracePeriodSeconds int32 `json:"gracePeriodSeconds,omitempty"`
	// nginx, alb, istio etc.
	Type string `json:"type"`
	// Ingress holds Ingress specific configuration to route traffic, e.g. Nginx, Alb.
	Ingress *IngressTrafficRouting `json:"ingress,omitempty"`
}

type WorkloadRef struct {
	// API Version of the referent
	APIVersion string `json:"apiVersion"`
	// Kind of the referent
	Kind string `json:"kind"`
	// Name of the referent
	Name string `json:"name"`
}