v1alpha1

type CommandArgsOverrider struct {
	// The name of container
	// +required
	ContainerName string `json:"containerName"`

	// Operator represents the operator which will apply on the command/args.
	// +kubebuilder:validation:Enum=add;remove
	// +required
	Operator OverriderOperator `json:"operator"`

	// Value to be applied to command/args.
	// Items in Value which will be appended after command/args when Operator is 'add'.
	// Items in Value which match in command/args will be deleted when Operator is 'remove'.
	// If Value is empty, then the command/args will remain the same.
	// +optional
	Value []string `json:"value,omitempty"`
}

type ImageComponent string

type ImageOverrider struct {
	// Predicate filters images before applying the rule.
	//
	// Defaults to nil, in that case, the system will automatically detect image fields if the resource type is
	// Pod, ReplicaSet, Deployment or StatefulSet by following rule:
	//   - Pod: spec/containers/<N>/image
	//   - ReplicaSet: spec/template/spec/containers/<N>/image
	//   - Deployment: spec/template/spec/containers/<N>/image
	//   - StatefulSet: spec/template/spec/containers/<N>/image
	// In addition, all images will be processed if the resource object has more than one containers.
	//
	// If not nil, only images matches the filters will be processed.
	// +optional
	Predicate *ImagePredicate `json:"predicate,omitempty"`

	// Component is part of image name.
	// Basically we presume an image can be made of '[registry/]repository[:tag]'.
	// The registry could be:
	// - k8s.gcr.io
	// - fictional.registry.example:10443
	// The repository could be:
	// - kube-apiserver
	// - fictional/nginx
	// The tag cloud be:
	// - latest
	// - v1.19.1
	// - @sha256:dbcc1c35ac38df41fd2f5e4130b32ffdb93ebae8b3dbe638c23575912276fc9c
	//
	// +kubebuilder:validation:Enum=Registry;Repository;Tag
	// +required
	Component ImageComponent `json:"component"`

	// Operator represents the operator which will apply on the image.
	// +kubebuilder:validation:Enum=add;remove;replace
	// +required
	Operator OverriderOperator `json:"operator"`

	// Value to be applied to image.
	// Must not be empty when operator is 'add' or 'replace'.
	// Defaults to empty and ignored when operator is 'remove'.
	// +optional
	Value string `json:"value,omitempty"`
}

type ImagePredicate struct {
	// Path indicates the path of target field
	// +required
	Path string `json:"path"`
}

type NodeGroupPreferences struct {
	// StaticWeightList defines the static nodegroup weight.
	// +required
	StaticWeightList []StaticNodeGroupWeight `json:"staticWeightList"`
}

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

	// Spec represents the desired behavior of OverridePolicy.
	Spec OverrideSpec `json:"spec"`
}

type OverridePolicyList struct {
	metav1.TypeMeta `json:",inline"`
	metav1.ListMeta `json:"metadata,omitempty"`

	// Items holds a list of OverridePolicy.
	Items []OverridePolicy `json:"items"`
}

type OverrideSpec struct {
	// ResourceSelectors restricts resource types that this override policy applies to.
	// nil means matching all resources.
	// +optional
	ResourceSelectors []ResourceSelector `json:"resourceSelectors,omitempty"`

	// OverrideRules defines a collection of override rules on target nodegroups.
	// +optional
	OverrideRules []RuleWithNodeGroup `json:"overrideRules,omitempty"`
}

type OverriderOperator string

type Overriders struct {
	// Plaintext represents override rules defined with plaintext overriders.
	// +optional
	Plaintext []PlaintextOverrider `json:"plaintext,omitempty"`

	// ImageOverrider represents the rules dedicated to handling image overrides.
	// +optional
	ImageOverrider []ImageOverrider `json:"imageOverrider,omitempty"`

	// CommandOverrider represents the rules dedicated to handling container command
	// +optional
	CommandOverrider []CommandArgsOverrider `json:"commandOverrider,omitempty"`

	// ArgsOverrider represents the rules dedicated to handling container args
	// +optional
	ArgsOverrider []CommandArgsOverrider `json:"argsOverrider,omitempty"`
}

type PlaintextOverrider struct {
	// Path indicates the path of target field
	Path string `json:"path"`
	// Operator indicates the operation on target field.
	// Available operators are: add, update and remove.
	// +kubebuilder:validation:Enum=add;remove;replace
	Operator OverriderOperator `json:"operator"`
	// Value to be applied to target field.
	// Must be empty when operator is Remove.
	// +optional
	Value apiextensionsv1.JSON `json:"value,omitempty"`
}

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

	// Spec represents the desired behavior of PropagationPolicy.
	// +required
	Spec PropagationPolicySpec `json:"spec"`
}

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

type PropagationPolicySpec struct {
	// ResourceSelectors used to select resources.
	// +required
	ResourceSelectors []ResourceSelector `json:"resourceSelectors"`

	// Placement represents the rule for select nodegroups to propagate resources.
	// +optional
	Placement NodeGroupPreferences `json:"placement,omitempty"`
}

type PropagationPolicyStatus struct {
}

type ResourceSelector struct {
	// APIVersion represents the API version of the target resources.
	// +required
	APIVersion string `json:"apiVersion"`

	// Kind represents the Kind of the target resources.
	// +required
	Kind string `json:"kind"`

	// Namespace of the target resource.
	// Default is empty, which means inherit from the parent object scope.
	// +optional
	Namespace string `json:"namespace,omitempty"`

	// Name of the target resource.
	// Default is empty, which means selecting all resources.
	// +optional
	Name string `json:"name,omitempty"`

	// A label query over a set of resources.
	// If name is not empty, labelSelector will be ignored.
	// +optional
	LabelSelector *metav1.LabelSelector `json:"labelSelector,omitempty"`
}

type RuleWithNodeGroup struct {
	// TargetNodeGroup defines restrictions on this override policy
	// that only applies to resources propagated to the matching nodegroups.
	// nil means matching all nodegroups.
	// +optional
	TargetNodeGroup []string `json:"targetNodeGroup,omitempty"`

	// Overriders represents the override rules that would apply on resources
	// +required
	Overriders Overriders `json:"overriders"`
}

type StaticNodeGroupWeight struct {
	// NodeGroupNames specifies nodegroups with names.
	// +required
	NodeGroupNames []string `json:"nodeGroupNames"`

	// Weight expressing the preference to the nodegroup(s) specified by 'TargetNodeGroup'.
	// +kubebuilder:validation:Minimum=1
	// +required
	Weight int64 `json:"weight"`
}