v1beta1

type AutoTrigger struct {
	// The name of the process.
	//
	// +optional
	ProcessName string `json:"processName,omitempty"`
}

type CfgFileFormat string

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

	Spec   ConfigConstraintSpec   `json:"spec,omitempty"`
	Status ConfigConstraintStatus `json:"status,omitempty"`
}

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

type ConfigConstraintPhase string

type ConfigConstraintSpec struct {
	// Specifies the dynamic reload (dynamic reconfiguration) actions supported by the engine.
	// When set, the controller executes the scripts defined in these actions to handle dynamic parameter updates.
	//
	// Dynamic reloading is triggered only if both of the following conditions are met:
	//
	// 1. The modified parameters are listed in the `dynamicParameters` field.
	//    If `dynamicParameterSelectedPolicy` is set to "all", modifications to `staticParameters`
	//    can also trigger a reload.
	// 2. `reloadAction` is set.
	//
	// If `reloadAction` is not set or the modified parameters are not listed in `dynamicParameters`,
	// dynamic reloading will not be triggered.
	//
	// Example:
	// “`yaml
	// dynamicReloadAction:
	//  tplScriptTrigger:
	//    namespace: kb-system
	//    scriptConfigMapRef: mysql-reload-script
	//    sync: true
	// “`
	//
	// +optional
	ReloadAction *ReloadAction `json:"reloadAction,omitempty"`

	// Indicates whether to consolidate dynamic reload and restart actions into a single restart.
	//
	// - If true, updates requiring both actions will result in only a restart, merging the actions.
	// - If false, updates will trigger both actions executed sequentially: first dynamic reload, then restart.
	//
	// This flag allows for more efficient handling of configuration changes by potentially eliminating
	// an unnecessary reload step.
	//
	// +optional
	MergeReloadAndRestart *bool `json:"mergeReloadAndRestart,omitempty"`

	// Configures whether the dynamic reload specified in `reloadAction` applies only to dynamic parameters or
	// to all parameters (including static parameters).
	//
	// - false (default): Only modifications to the dynamic parameters listed in `dynamicParameters`
	//   will trigger a dynamic reload.
	// - true: Modifications to both dynamic parameters listed in `dynamicParameters` and static parameters
	//   listed in `staticParameters` will trigger a dynamic reload.
	//   The "all" option is for certain engines that require static parameters to be set
	//   via SQL statements before they can take effect on restart.
	//
	// +optional
	ReloadStaticParamsBeforeRestart *bool `json:"reloadStaticParamsBeforeRestart,omitempty"`

	// TODO: migrate DownwardAPITriggeredActions to ComponentDefinition.spec.lifecycleActions
	// Specifies a list of actions to execute specified commands based on Pod labels.
	//
	// It utilizes the K8s Downward API to mount label information as a volume into the pod.
	// The 'config-manager' sidecar container watches for changes in the role label and dynamically invoke
	// registered commands (usually execute some SQL statements) when a change is detected.
	//
	// It is designed for scenarios where:
	//
	// - Replicas with different roles have different configurations, such as Redis primary & secondary replicas.
	// - After a role switch (e.g., from secondary to primary), some changes in configuration are needed
	//   to reflect the new role.
	//
	// +optional
	DownwardAPIChangeTriggeredActions []DownwardAPIChangeTriggeredAction `json:"downwardAPIChangeTriggeredActions,omitempty"`

	// Defines a list of parameters including their names, default values, descriptions,
	// types, and constraints (permissible values or the range of valid values).
	//
	// +optional
	ParametersSchema *ParametersSchema `json:"parametersSchema,omitempty"`

	// List static parameters.
	// Modifications to any of these parameters require a restart of the process to take effect.
	//
	// +listType=set
	// +optional
	StaticParameters []string `json:"staticParameters,omitempty"`

	// List dynamic parameters.
	// Modifications to these parameters trigger a configuration reload without requiring a process restart.
	//
	// +listType=set
	// +optional
	DynamicParameters []string `json:"dynamicParameters,omitempty"`

	// Lists the parameters that cannot be modified once set.
	// Attempting to change any of these parameters will be ignored.
	//
	// +listType=set
	// +optional
	ImmutableParameters []string `json:"immutableParameters,omitempty"`

	// Specifies the format of the configuration file and any associated parameters that are specific to the chosen format.
	// Supported formats include `ini`, `xml`, `yaml`, `json`, `hcl`, `dotenv`, `properties`, and `toml`.
	//
	// Each format may have its own set of parameters that can be configured.
	// For instance, when using the `ini` format, you can specify the section name.
	//
	// Example:
	// “`
	// fileFormatConfig:
	//  format: ini
	//  iniConfig:
	//    sectionName: mysqld
	// “`
	//
	// +kubebuilder:validation:Required
	FileFormatConfig *FileFormatConfig `json:"fileFormatConfig"`
}

type ConfigConstraintStatus struct {

	// Specifies the status of the configuration template.
	// When set to CCAvailablePhase, the ConfigConstraint can be referenced by ClusterDefinition or ClusterVersion.
	//
	// +optional
	Phase ConfigConstraintPhase `json:"phase,omitempty"`

	// Provides descriptions for abnormal states.
	//
	// +optional
	Message string `json:"message,omitempty"`

	// Refers to the most recent generation observed for this ConfigConstraint. This value is updated by the API Server.
	//
	// +optional
	ObservedGeneration int64 `json:"observedGeneration,omitempty"`
}

type DownwardAPIChangeTriggeredAction struct {
	// Specifies the name of the field. It must be a string of maximum length 63.
	// The name should match the regex pattern `^[a-z0-9]([a-z0-9\.\-]*[a-z0-9])?$`.
	//
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:MaxLength=63
	// +kubebuilder:validation:Pattern:=`^[a-z0-9]([a-z0-9\.\-]*[a-z0-9])?$`
	Name string `json:"name"`

	// Specifies the mount point of the Downward API volume.
	//
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:MaxLength=128
	MountPoint string `json:"mountPoint"`

	// Represents a list of files under the Downward API volume.
	//
	// +kubebuilder:validation:Required
	Items []corev1.DownwardAPIVolumeFile `json:"items"`

	// Specifies the command to be triggered when changes are detected in Downward API volume files.
	// It relies on the inotify mechanism in the config-manager sidecar to monitor file changes.
	//
	// +optional
	Command []string `json:"command,omitempty"`

	// ScriptConfig object specifies a ConfigMap that contains script files that should be mounted inside the pod.
	// The scripts are mounted as volumes and can be referenced and executed by the DownwardAction to perform specific tasks or configurations.
	//
	// +optional
	ScriptConfig *ScriptConfig `json:"scriptConfig,omitempty"`
}

type DynamicParameterSelectedPolicy string

type DynamicReloadType string

type FileFormatConfig struct {
	// Each format may have its own set of parameters that can be configured.
	// For instance, when using the `ini` format, you can specify the section name.
	//
	// +optional
	FormatterAction `json:",inline"`

	// The config file format. Valid values are `ini`, `xml`, `yaml`, `json`,
	// `hcl`, `dotenv`, `properties` and `toml`. Each format has its own characteristics and use cases.
	//
	// - ini: is a text-based content with a structure and syntax comprising key–value pairs for properties, reference wiki: https://en.wikipedia.org/wiki/INI_file
	// - xml: refers to wiki: https://en.wikipedia.org/wiki/XML
	// - yaml: supports for complex data types and structures.
	// - json: refers to wiki: https://en.wikipedia.org/wiki/JSON
	// - hcl: The HashiCorp Configuration Language (HCL) is a configuration language authored by HashiCorp, reference url: https://www.linode.com/docs/guides/introduction-to-hcl/
	// - dotenv: is a plain text file with simple key–value pairs, reference wiki: https://en.wikipedia.org/wiki/Configuration_file#MS-DOS
	// - properties: a file extension mainly used in Java, reference wiki: https://en.wikipedia.org/wiki/.properties
	// - toml: refers to wiki: https://en.wikipedia.org/wiki/TOML
	// - props-plus: a file extension mainly used in Java, supports CamelCase(e.g: brokerMaxConnectionsPerIp)
	//
	// +kubebuilder:validation:Required
	Format CfgFileFormat `json:"format"`
}

type FormatterAction struct {
	// Holds options specific to the 'ini' file format.
	//
	// +optional
	IniConfig *IniConfig `json:"iniConfig,omitempty"`
}

type IniConfig struct {
	// A string that describes the name of the ini section.
	//
	// +optional
	SectionName string `json:"sectionName,omitempty"`
}

type ParametersSchema struct {
	// Specifies the top-level key in the 'configSchema.cue' that organizes the validation rules for parameters.
	// This key must exist within the CUE script defined in 'configSchema.cue'.
	//
	// +optional
	TopLevelKey string `json:"topLevelKey,omitempty"`

	// Hold a string that contains a script written in CUE language that defines a list of configuration items.
	// Each item is detailed with its name, default value, description, type (e.g. string, integer, float),
	// and constraints (permissible values or the valid range of values).
	//
	// CUE (Configure, Unify, Execute) is a declarative language designed for defining and validating
	// complex data configurations.
	// It is particularly useful in environments like K8s where complex configurations and validation rules are common.
	//
	// This script functions as a validator for user-provided configurations, ensuring compliance with
	// the established specifications and constraints.
	//
	// +optional
	CUE string `json:"cue,omitempty"`

	// Generated from the 'cue' field and transformed into a JSON format.
	//
	// +kubebuilder:validation:Schemaless
	// +kubebuilder:validation:ComponentDefRef=object
	// +kubebuilder:pruning:PreserveUnknownFields
	SchemaInJSON *apiext.JSONSchemaProps `json:"schemaInJSON,omitempty"`
}

type ReloadAction struct {
	// Used to trigger a reload by sending a specific Unix signal to the process.
	//
	// +optional
	UnixSignalTrigger *UnixSignalTrigger `json:"unixSignalTrigger,omitempty"`

	// Allows to execute a custom shell script to reload the process.
	//
	// +optional
	ShellTrigger *ShellTrigger `json:"shellTrigger,omitempty"`

	// Enables reloading process using a Go template script.
	//
	// +optional
	TPLScriptTrigger *TPLScriptTrigger `json:"tplScriptTrigger"`

	// Automatically perform the reload when specified conditions are met.
	//
	// +optional
	AutoTrigger *AutoTrigger `json:"autoTrigger,omitempty"`

	// Used to match labels on the pod to determine whether a dynamic reload should be performed.
	//
	// In some scenarios, only specific pods (e.g., primary replicas) need to undergo a dynamic reload.
	// The `reloadedPodSelector` allows you to specify label selectors to target the desired pods for the reload process.
	//
	// If the `reloadedPodSelector` is not specified or is nil, all pods managed by the workload will be considered for the dynamic
	// reload.
	//
	// +optional
	TargetPodSelector *metav1.LabelSelector `json:"targetPodSelector,omitempty"`
}

type ScriptConfig struct {
	// Specifies the reference to the ConfigMap containing the scripts.
	//
	// +kubebuilder:validation:Required
	ScriptConfigMapRef string `json:"scriptConfigMapRef"`

	// Specifies the namespace for the ConfigMap.
	// If not specified, it defaults to the "default" namespace.
	//
	// +kubebuilder:validation:MaxLength=63
	// +kubebuilder:default="default"
	// +kubebuilder:validation:Pattern:=`^[a-z0-9]([a-z0-9\-]*[a-z0-9])?$`
	// +optional
	Namespace string `json:"namespace,omitempty"`
}

type ShellTrigger struct {
	// Specifies the command to execute in order to reload the process. It should be a valid shell command.
	//
	// +kubebuilder:validation:Required
	Command []string `json:"command"`

	// Determines the synchronization mode of parameter updates with "config-manager".
	//
	// - 'True': Executes reload actions synchronously, pausing until completion.
	// - 'False': Executes reload actions asynchronously, without waiting for completion.
	//
	// +optional
	Sync *bool `json:"sync,omitempty"`

	// Controls whether parameter updates are processed individually or collectively in a batch:
	//
	// - 'True': Processes all changes in one batch reload.
	// - 'False': Processes each change individually.
	//
	// Defaults to 'False' if unspecified.
	//
	// +optional
	BatchReload *bool `json:"batchReload,omitempty"`

	// Specifies a Go template string for formatting batch input data.
	// It's used when `batchReload` is 'True' to format data passed into STDIN of the script.
	// The template accesses key-value pairs of updated parameters via the '$' variable.
	// This allows for custom formatting of the input data.
	//
	// Example template:
	//
	// “`yaml
	// batchParamsFormatterTemplate: |-
	// {{- range $pKey, $pValue := $ }}
	// {{ printf "%s:%s" $pKey $pValue }}
	// {{- end }}
	// “`
	//
	// This example generates batch input data in a key:value format, sorted by keys.
	// “`
	// key1:value1
	// key2:value2
	// key3:value3
	// “`
	//
	// If not specified, the default format is key=value, sorted by keys, for each updated parameter.
	// “`
	// key1=value1
	// key2=value2
	// key3=value3
	// “`
	//
	// +optional
	BatchParamsFormatterTemplate string `json:"batchParamsFormatterTemplate,omitempty"`

	// Specifies the tools container image used by ShellTrigger for dynamic reload.
	// If the dynamic reload action is triggered by a ShellTrigger, this field is required.
	// This image must contain all necessary tools for executing the ShellTrigger scripts.
	//
	// Usually the specified image is referenced by the init container,
	// which is then responsible for copy the tools from the image to a bin volume.
	// This ensures that the tools are available to the 'config-manager' sidecar.
	//
	// +optional
	ToolsSetup *ToolsSetup `json:"toolsSetup,omitempty"`

	// ScriptConfig object specifies a ConfigMap that contains script files that should be mounted inside the pod.
	// The scripts are mounted as volumes and can be referenced and executed by the dynamic reload.
	//
	// +optional
	ScriptConfig *ScriptConfig `json:"scriptConfig,omitempty"`
}

type SignalType string

type TPLScriptTrigger struct {
	// Specifies the ConfigMap that contains the script to be executed for reload.
	//
	ScriptConfig `json:",inline"`

	// Determines whether parameter updates should be synchronized with the "config-manager".
	// Specifies the controller's reload strategy:
	//
	// - If set to 'True', the controller executes the reload action in synchronous mode,
	//   pausing execution until the reload completes.
	// - If set to 'False', the controller executes the reload action in asynchronous mode,
	//   updating the ConfigMap without waiting for the reload process to finish.
	//
	// +optional
	Sync *bool `json:"sync,omitempty"`
}

type ToolConfig struct {
	// Specifies the name of the init container.
	//
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:MaxLength=63
	// +kubebuilder:validation:Pattern:=`^[a-z]([a-z0-9\-]*[a-z0-9])?$`
	Name string `json:"name,omitempty"`

	// Indicates whether the tool image should be used as the container image for a sidecar.
	// This is useful for large tool images, such as those for C++ tools, which may depend on
	// numerous libraries (e.g., *.so files).
	//
	// If enabled, the tool image is deployed as a sidecar container image.
	//
	// Examples:
	// “`yaml
	//  toolsSetup::
	//    mountPoint: /kb_tools
	//    toolConfigs:
	//      - name: kb-tools
	//        asContainerImage: true
	//        image:  apecloud/oceanbase:4.2.0.0-100010032023083021
	// “`
	//
	// generated containers:
	// “`yaml
	// initContainers:
	//  - name: install-config-manager-tool
	//    image: apecloud/kubeblocks-tools:${version}
	//    command:
	//    - cp
	//    - /bin/config_render
	//    - /opt/tools
	//    volumemounts:
	//    - name: kb-tools
	//      mountpath: /opt/tools
	//
	// containers:
	//  - name: config-manager
	//    image: apecloud/oceanbase:4.2.0.0-100010032023083021
	//    imagePullPolicy: IfNotPresent
	// 	  command:
	//    - /opt/tools/reloader
	//    - --log-level
	//    - info
	//    - --operator-update-enable
	//    - --tcp
	//    - "9901"
	//    - --config
	//    - /opt/config-manager/config-manager.yaml
	//    volumemounts:
	//    - name: kb-tools
	//      mountpath: /opt/tools
	// “`
	//
	// +optional
	AsContainerImage *bool `json:"asContainerImage,omitempty"`

	// Specifies the tool container image.
	//
	// +optional
	Image string `json:"image,omitempty"`

	// Specifies the command to be executed by the init container.
	//
	// +optional
	Command []string `json:"command,omitempty"`
}

type ToolsSetup struct {

	// Specifies the directory path in the container where the tools-related files are to be copied.
	// This field is typically used with an emptyDir volume to ensure a temporary, empty directory is provided at pod creation.
	//
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:MaxLength=128
	MountPoint string `json:"mountPoint"`

	// Specifies a list of settings of init containers that prepare tools for dynamic reload.
	//
	// +optional
	ToolConfigs []ToolConfig `json:"toolConfigs,omitempty"`
}

type UnixSignalTrigger struct {
	// Specifies a valid Unix signal to be sent.
	// For a comprehensive list of all Unix signals, see: ../../pkg/configuration/configmap/handler.go:allUnixSignals
	//
	// +kubebuilder:validation:Required
	Signal SignalType `json:"signal"`

	// Identifies the name of the process to which the Unix signal will be sent.
	//
	// +kubebuilder:validation:Required
	ProcessName string `json:"processName"`
}