package awsapplicationautoscaling

import (
	"github.com/aws/aws-cdk-go/awscdk/v2"
	"github.com/aws/aws-cdk-go/awscdk/v2/awscloudwatch"
)

// Properties for a Target Tracking policy that include the metric but exclude the target.
//
// Example:
//   import "github.com/aws/aws-cdk-go/awscdk"
//
//   var code code
//
//
//   handler := lambda.NewFunction(this, jsii.String("MyFunction"), &FunctionProps{
//   	Runtime: lambda.Runtime_PYTHON_3_7(),
//   	Handler: jsii.String("index.handler"),
//   	Code: Code,
//
//   	ReservedConcurrentExecutions: jsii.Number(2),
//   })
//
//   fnVer := handler.currentVersion
//
//   target := appscaling.NewScalableTarget(this, jsii.String("ScalableTarget"), &ScalableTargetProps{
//   	ServiceNamespace: appscaling.ServiceNamespace_LAMBDA,
//   	MaxCapacity: jsii.Number(100),
//   	MinCapacity: jsii.Number(10),
//   	ResourceId: fmt.Sprintf("function:%v:%v", handler.FunctionName, fnVer.Version),
//   	ScalableDimension: jsii.String("lambda:function:ProvisionedConcurrency"),
//   })
//
//   target.ScaleToTrackMetric(jsii.String("PceTracking"), &BasicTargetTrackingScalingPolicyProps{
//   	TargetValue: jsii.Number(0.9),
//   	PredefinedMetric: appscaling.PredefinedMetric_LAMBDA_PROVISIONED_CONCURRENCY_UTILIZATION,
//   })
//
type BasicTargetTrackingScalingPolicyProps struct {
	// Indicates whether scale in by the target tracking policy is disabled.
	//
	// If the value is true, scale in is disabled and the target tracking policy
	// won't remove capacity from the scalable resource. Otherwise, scale in is
	// enabled and the target tracking policy can remove capacity from the
	// scalable resource.
	DisableScaleIn *bool `field:"optional" json:"disableScaleIn" yaml:"disableScaleIn"`
	// A name for the scaling policy.
	PolicyName *string `field:"optional" json:"policyName" yaml:"policyName"`
	// Period after a scale in activity completes before another scale in activity can start.
	ScaleInCooldown awscdk.Duration `field:"optional" json:"scaleInCooldown" yaml:"scaleInCooldown"`
	// Period after a scale out activity completes before another scale out activity can start.
	ScaleOutCooldown awscdk.Duration `field:"optional" json:"scaleOutCooldown" yaml:"scaleOutCooldown"`
	// The target value for the metric.
	TargetValue *float64 `field:"required" json:"targetValue" yaml:"targetValue"`
	// A custom metric for application autoscaling.
	//
	// The metric must track utilization. Scaling out will happen if the metric is higher than
	// the target value, scaling in will happen in the metric is lower than the target value.
	//
	// Exactly one of customMetric or predefinedMetric must be specified.
	CustomMetric awscloudwatch.IMetric `field:"optional" json:"customMetric" yaml:"customMetric"`
	// A predefined metric for application autoscaling.
	//
	// The metric must track utilization. Scaling out will happen if the metric is higher than
	// the target value, scaling in will happen in the metric is lower than the target value.
	//
	// Exactly one of customMetric or predefinedMetric must be specified.
	PredefinedMetric PredefinedMetric `field:"optional" json:"predefinedMetric" yaml:"predefinedMetric"`
	// Identify the resource associated with the metric type.
	//
	// Only used for predefined metric ALBRequestCountPerTarget.
	//
	// Example value: `app/<load-balancer-name>/<load-balancer-id>/targetgroup/<target-group-name>/<target-group-id>`.
	ResourceLabel *string `field:"optional" json:"resourceLabel" yaml:"resourceLabel"`
}