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

package lightsail

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

// Returns the data points of the specified metric for a database in Amazon
// Lightsail.
//
// Metrics report the utilization of your resources, and the error counts
// generated by them. Monitor and collect metric data regularly to maintain the
// reliability, availability, and performance of your resources.
func (c *Client) GetRelationalDatabaseMetricData(ctx context.Context, params *GetRelationalDatabaseMetricDataInput, optFns ...func(*Options)) (*GetRelationalDatabaseMetricDataOutput, error) {
	if params == nil {
		params = &GetRelationalDatabaseMetricDataInput{}
	}

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

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

type GetRelationalDatabaseMetricDataInput struct {

	// The end of the time interval from which to get metric data.
	//
	// Constraints:
	//
	//   - Specified in Coordinated Universal Time (UTC).
	//
	//   - Specified in the Unix time format.
	//
	// For example, if you wish to use an end time of October 1, 2018, at 8 PM UTC,
	//   then you input 1538424000 as the end time.
	//
	// This member is required.
	EndTime *time.Time

	// The metric for which you want to return information.
	//
	// Valid relational database metric names are listed below, along with the most
	// useful statistics to include in your request, and the published unit value. All
	// relational database metric data is available in 1-minute (60 seconds)
	// granularity.
	//
	//   - CPUUtilization - The percentage of CPU utilization currently in use on the
	//   database.
	//
	// Statistics : The most useful statistics are Maximum and Average .
	//
	// Unit : The published unit is Percent .
	//
	//   - DatabaseConnections - The number of database connections in use.
	//
	// Statistics : The most useful statistics are Maximum and Sum .
	//
	// Unit : The published unit is Count .
	//
	//   - DiskQueueDepth - The number of outstanding IOs (read/write requests) that
	//   are waiting to access the disk.
	//
	// Statistics : The most useful statistic is Sum .
	//
	// Unit : The published unit is Count .
	//
	//   - FreeStorageSpace - The amount of available storage space.
	//
	// Statistics : The most useful statistic is Sum .
	//
	// Unit : The published unit is Bytes .
	//
	//   - NetworkReceiveThroughput - The incoming (Receive) network traffic on the
	//   database, including both customer database traffic and AWS traffic used for
	//   monitoring and replication.
	//
	// Statistics : The most useful statistic is Average .
	//
	// Unit : The published unit is Bytes/Second .
	//
	//   - NetworkTransmitThroughput - The outgoing (Transmit) network traffic on the
	//   database, including both customer database traffic and AWS traffic used for
	//   monitoring and replication.
	//
	// Statistics : The most useful statistic is Average .
	//
	// Unit : The published unit is Bytes/Second .
	//
	// This member is required.
	MetricName types.RelationalDatabaseMetricName

	// The granularity, in seconds, of the returned data points.
	//
	// All relational database metric data is available in 1-minute (60 seconds)
	// granularity.
	//
	// This member is required.
	Period *int32

	// The name of your database from which to get metric data.
	//
	// This member is required.
	RelationalDatabaseName *string

	// The start of the time interval from which to get metric data.
	//
	// Constraints:
	//
	//   - Specified in Coordinated Universal Time (UTC).
	//
	//   - Specified in the Unix time format.
	//
	// For example, if you wish to use a start time of October 1, 2018, at 8 PM UTC,
	//   then you input 1538424000 as the start time.
	//
	// This member is required.
	StartTime *time.Time

	// The statistic for the metric.
	//
	// The following statistics are available:
	//
	//   - Minimum - The lowest value observed during the specified period. Use this
	//   value to determine low volumes of activity for your application.
	//
	//   - Maximum - The highest value observed during the specified period. Use this
	//   value to determine high volumes of activity for your application.
	//
	//   - Sum - All values submitted for the matching metric added together. You can
	//   use this statistic to determine the total volume of a metric.
	//
	//   - Average - The value of Sum / SampleCount during the specified period. By
	//   comparing this statistic with the Minimum and Maximum values, you can determine
	//   the full scope of a metric and how close the average use is to the Minimum and
	//   Maximum values. This comparison helps you to know when to increase or decrease
	//   your resources.
	//
	//   - SampleCount - The count, or number, of data points used for the statistical
	//   calculation.
	//
	// This member is required.
	Statistics []types.MetricStatistic

	// The unit for the metric data request. Valid units depend on the metric data
	// being requested. For the valid units with each available metric, see the
	// metricName parameter.
	//
	// This member is required.
	Unit types.MetricUnit

	noSmithyDocumentSerde
}

type GetRelationalDatabaseMetricDataOutput struct {

	// An array of objects that describe the metric data returned.
	MetricData []types.MetricDatapoint

	// The name of the metric returned.
	MetricName types.RelationalDatabaseMetricName

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

	noSmithyDocumentSerde
}

func (c *Client) addOperationGetRelationalDatabaseMetricDataMiddlewares(stack *middleware.Stack, options Options) (err error) {
	if err := stack.Serialize.Add(&setOperationInputMiddleware{}, middleware.After); err != nil {
		return err
	}
	err = stack.Serialize.Add(&awsAwsjson11_serializeOpGetRelationalDatabaseMetricData{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsAwsjson11_deserializeOpGetRelationalDatabaseMetricData{}, middleware.After)
	if err != nil {
		return err
	}
	if err := addProtocolFinalizerMiddlewares(stack, options, "GetRelationalDatabaseMetricData"); 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, c); 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 = addUserAgentRetryMode(stack, options); err != nil {
		return err
	}
	if err = addCredentialSource(stack, options); err != nil {
		return err
	}
	if err = addOpGetRelationalDatabaseMetricDataValidationMiddleware(stack); err != nil {
		return err
	}
	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opGetRelationalDatabaseMetricData(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_opGetRelationalDatabaseMetricData(region string) *awsmiddleware.RegisterServiceMetadata {
	return &awsmiddleware.RegisterServiceMetadata{
		Region:        region,
		ServiceID:     ServiceID,
		OperationName: "GetRelationalDatabaseMetricData",
	}
}