// Code generated by smithy-go-codegen DO NOT EDIT.

package autoscaling

import (
	"context"
	"fmt"
	awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
	"github.com/aws/aws-sdk-go-v2/service/autoscaling/types"
	"github.com/aws/smithy-go/middleware"
	smithyhttp "github.com/aws/smithy-go/transport/http"
	"time"
)

// Retrieves the forecast data for a predictive scaling policy.
//
// Load forecasts are predictions of the hourly load values using historical load
// data from CloudWatch and an analysis of historical trends. Capacity forecasts
// are represented as predicted values for the minimum capacity that is needed on
// an hourly basis, based on the hourly load forecast.
//
// A minimum of 24 hours of data is required to create the initial forecasts.
// However, having a full 14 days of historical data results in more accurate
// forecasts.
//
// For more information, see [Predictive scaling for Amazon EC2 Auto Scaling] in the Amazon EC2 Auto Scaling User Guide.
//
// [Predictive scaling for Amazon EC2 Auto Scaling]: https://docs.aws.amazon.com/autoscaling/ec2/userguide/ec2-auto-scaling-predictive-scaling.html
func (c *Client) GetPredictiveScalingForecast(ctx context.Context, params *GetPredictiveScalingForecastInput, optFns ...func(*Options)) (*GetPredictiveScalingForecastOutput, error) {
	if params == nil {
		params = &GetPredictiveScalingForecastInput{}
	}

	result, metadata, err := c.invokeOperation(ctx, "GetPredictiveScalingForecast", params, optFns, c.addOperationGetPredictiveScalingForecastMiddlewares)
	if err != nil {
		return nil, err
	}

	out := result.(*GetPredictiveScalingForecastOutput)
	out.ResultMetadata = metadata
	return out, nil
}

type GetPredictiveScalingForecastInput struct {

	// The name of the Auto Scaling group.
	//
	// This member is required.
	AutoScalingGroupName *string

	// The exclusive end time of the time range for the forecast data to get. The
	// maximum time duration between the start and end time is 30 days.
	//
	// Although this parameter can accept a date and time that is more than two days
	// in the future, the availability of forecast data has limits. Amazon EC2 Auto
	// Scaling only issues forecasts for periods of two days in advance.
	//
	// This member is required.
	EndTime *time.Time

	// The name of the policy.
	//
	// This member is required.
	PolicyName *string

	// The inclusive start time of the time range for the forecast data to get. At
	// most, the date and time can be one year before the current date and time.
	//
	// This member is required.
	StartTime *time.Time

	noSmithyDocumentSerde
}

type GetPredictiveScalingForecastOutput struct {

	// The capacity forecast.
	//
	// This member is required.
	CapacityForecast *types.CapacityForecast

	// The load forecast.
	//
	// This member is required.
	LoadForecast []types.LoadForecast

	// The time the forecast was made.
	//
	// This member is required.
	UpdateTime *time.Time

	// Metadata pertaining to the operation's result.
	ResultMetadata middleware.Metadata

	noSmithyDocumentSerde
}

func (c *Client) addOperationGetPredictiveScalingForecastMiddlewares(stack *middleware.Stack, options Options) (err error) {
	if err := stack.Serialize.Add(&setOperationInputMiddleware{}, middleware.After); err != nil {
		return err
	}
	err = stack.Serialize.Add(&awsAwsquery_serializeOpGetPredictiveScalingForecast{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsAwsquery_deserializeOpGetPredictiveScalingForecast{}, middleware.After)
	if err != nil {
		return err
	}
	if err := addProtocolFinalizerMiddlewares(stack, options, "GetPredictiveScalingForecast"); err != nil {
		return fmt.Errorf("add protocol finalizers: %v", err)
	}

	if err = addlegacyEndpointContextSetter(stack, options); err != nil {
		return err
	}
	if err = addSetLoggerMiddleware(stack, options); err != nil {
		return err
	}
	if err = addClientRequestID(stack); err != nil {
		return err
	}
	if err = addComputeContentLength(stack); err != nil {
		return err
	}
	if err = addResolveEndpointMiddleware(stack, options); err != nil {
		return err
	}
	if err = addComputePayloadSHA256(stack); err != nil {
		return err
	}
	if err = addRetry(stack, options); err != nil {
		return err
	}
	if err = addRawResponseToMetadata(stack); err != nil {
		return err
	}
	if err = addRecordResponseTiming(stack); err != nil {
		return err
	}
	if err = addSpanRetryLoop(stack, options); err != nil {
		return err
	}
	if err = addClientUserAgent(stack, options); err != nil {
		return err
	}
	if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil {
		return err
	}
	if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil {
		return err
	}
	if err = addSetLegacyContextSigningOptionsMiddleware(stack); err != nil {
		return err
	}
	if err = addTimeOffsetBuild(stack, c); err != nil {
		return err
	}
	if err = addUserAgentRetryMode(stack, options); err != nil {
		return err
	}
	if err = addCredentialSource(stack, options); err != nil {
		return err
	}
	if err = addOpGetPredictiveScalingForecastValidationMiddleware(stack); err != nil {
		return err
	}
	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opGetPredictiveScalingForecast(options.Region), middleware.Before); err != nil {
		return err
	}
	if err = addRecursionDetection(stack); err != nil {
		return err
	}
	if err = addRequestIDRetrieverMiddleware(stack); err != nil {
		return err
	}
	if err = addResponseErrorMiddleware(stack); err != nil {
		return err
	}
	if err = addRequestResponseLogging(stack, options); err != nil {
		return err
	}
	if err = addDisableHTTPSMiddleware(stack, options); err != nil {
		return err
	}
	if err = addInterceptBeforeRetryLoop(stack, options); err != nil {
		return err
	}
	if err = addInterceptAttempt(stack, options); err != nil {
		return err
	}
	if err = addInterceptors(stack, options); err != nil {
		return err
	}
	return nil
}

func newServiceMetadataMiddleware_opGetPredictiveScalingForecast(region string) *awsmiddleware.RegisterServiceMetadata {
	return &awsmiddleware.RegisterServiceMetadata{
		Region:        region,
		ServiceID:     ServiceID,
		OperationName: "GetPredictiveScalingForecast",
	}
}
