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

package appconfig

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

// (Deprecated) Retrieves the latest deployed configuration.
//
// Note the following important information.
//
//   - This API action is deprecated. Calls to receive configuration data should
//     use the [StartConfigurationSession]and [GetLatestConfiguration]APIs instead.
//
// GetConfiguration
//   - is a priced call. For more information, see [Pricing].
//
// Deprecated: This API has been deprecated in favor of the GetLatestConfiguration
// API used in conjunction with StartConfigurationSession.
//
// [GetLatestConfiguration]: https://docs.aws.amazon.com/appconfig/2019-10-09/APIReference/API_appconfigdata_GetLatestConfiguration.html
// [StartConfigurationSession]: https://docs.aws.amazon.com/appconfig/2019-10-09/APIReference/API_appconfigdata_StartConfigurationSession.html
// [Pricing]: https://aws.amazon.com/systems-manager/pricing/
func (c *Client) GetConfiguration(ctx context.Context, params *GetConfigurationInput, optFns ...func(*Options)) (*GetConfigurationOutput, error) {
	if params == nil {
		params = &GetConfigurationInput{}
	}

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

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

type GetConfigurationInput struct {

	// The application to get. Specify either the application name or the application
	// ID.
	//
	// This member is required.
	Application *string

	// The clientId parameter in the following command is a unique, user-specified ID
	// to identify the client for the configuration. This ID enables AppConfig to
	// deploy the configuration in intervals, as defined in the deployment strategy.
	//
	// This member is required.
	ClientId *string

	// The configuration to get. Specify either the configuration name or the
	// configuration ID.
	//
	// This member is required.
	Configuration *string

	// The environment to get. Specify either the environment name or the environment
	// ID.
	//
	// This member is required.
	Environment *string

	// The configuration version returned in the most recent GetConfiguration response.
	//
	// AppConfig uses the value of the ClientConfigurationVersion parameter to
	// identify the configuration version on your clients. If you don’t send
	// ClientConfigurationVersion with each call to GetConfiguration, your clients receive the current
	// configuration. You are charged each time your clients receive a configuration.
	//
	// To avoid excess charges, we recommend you use the [StartConfigurationSession] and [GetLatestConfiguration] APIs, which track the
	// client configuration version on your behalf. If you choose to continue using GetConfiguration,
	// we recommend that you include the ClientConfigurationVersion value with every
	// call to GetConfiguration. The value to use for ClientConfigurationVersion comes from the
	// ConfigurationVersion attribute returned by GetConfiguration when there is new or updated data,
	// and should be saved for subsequent calls to GetConfiguration.
	//
	// For more information about working with configurations, see [Retrieving feature flags and configuration data in AppConfig] in the AppConfig
	// User Guide.
	//
	// [GetLatestConfiguration]: https://docs.aws.amazon.com/appconfig/2019-10-09/APIReference/GetLatestConfiguration.html
	// [Retrieving feature flags and configuration data in AppConfig]: http://docs.aws.amazon.com/appconfig/latest/userguide/retrieving-feature-flags.html
	// [StartConfigurationSession]: https://docs.aws.amazon.com/appconfig/2019-10-09/APIReference/StartConfigurationSession.html
	ClientConfigurationVersion *string

	noSmithyDocumentSerde
}

type GetConfigurationOutput struct {

	// The configuration version.
	ConfigurationVersion *string

	// The content of the configuration or the configuration data.
	//
	// The Content attribute only contains data if the system finds new or updated
	// configuration data. If there is no new or updated data and
	// ClientConfigurationVersion matches the version of the current configuration,
	// AppConfig returns a 204 No Content HTTP response code and the Content value
	// will be empty.
	Content []byte

	// A standard MIME type describing the format of the configuration content. For
	// more information, see [Content-Type].
	//
	// [Content-Type]: http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.17
	ContentType *string

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

	noSmithyDocumentSerde
}

func (c *Client) addOperationGetConfigurationMiddlewares(stack *middleware.Stack, options Options) (err error) {
	if err := stack.Serialize.Add(&setOperationInputMiddleware{}, middleware.After); err != nil {
		return err
	}
	err = stack.Serialize.Add(&awsRestjson1_serializeOpGetConfiguration{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsRestjson1_deserializeOpGetConfiguration{}, middleware.After)
	if err != nil {
		return err
	}
	if err := addProtocolFinalizerMiddlewares(stack, options, "GetConfiguration"); 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 = addOpGetConfigurationValidationMiddleware(stack); err != nil {
		return err
	}
	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opGetConfiguration(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_opGetConfiguration(region string) *awsmiddleware.RegisterServiceMetadata {
	return &awsmiddleware.RegisterServiceMetadata{
		Region:        region,
		ServiceID:     ServiceID,
		OperationName: "GetConfiguration",
	}
}
