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

package mediapackagev2

import (
	"context"
	"fmt"
	awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
	"github.com/aws/aws-sdk-go-v2/aws/signer/v4"
	"github.com/aws/aws-sdk-go-v2/service/mediapackagev2/types"
	"github.com/aws/smithy-go/middleware"
	smithyhttp "github.com/aws/smithy-go/transport/http"
	"time"
)

// Create a channel to start receiving content streams. The channel represents the
// input to MediaPackage for incoming live content from an encoder such as AWS
// Elemental MediaLive. The channel receives content, and after packaging it,
// outputs it through an origin endpoint to downstream devices (such as video
// players or CDNs) that request the content. You can create only one channel with
// each request. We recommend that you spread out channels between channel groups,
// such as putting redundant channels in the same AWS Region in different channel
// groups.
func (c *Client) CreateChannel(ctx context.Context, params *CreateChannelInput, optFns ...func(*Options)) (*CreateChannelOutput, error) {
	if params == nil {
		params = &CreateChannelInput{}
	}

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

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

type CreateChannelInput struct {

	// The name that describes the channel group. The name is the primary identifier
	// for the channel group, and must be unique for your account in the AWS Region.
	//
	// This member is required.
	ChannelGroupName *string

	// The name that describes the channel. The name is the primary identifier for the
	// channel, and must be unique for your account in the AWS Region and channel
	// group. You can't change the name after you create the channel.
	//
	// This member is required.
	ChannelName *string

	// A unique, case-sensitive token that you provide to ensure the idempotency of
	// the request.
	ClientToken *string

	// Enter any descriptive text that helps you to identify the channel.
	Description *string

	// A comma-separated list of tag key:value pairs that you define. For example:
	// "Key1": "Value1",
	//     "Key2": "Value2"
	Tags map[string]string

	noSmithyDocumentSerde
}

type CreateChannelOutput struct {

	// The Amazon Resource Name (ARN) associated with the resource.
	//
	// This member is required.
	Arn *string

	// The name that describes the channel group. The name is the primary identifier
	// for the channel group, and must be unique for your account in the AWS Region.
	//
	// This member is required.
	ChannelGroupName *string

	// The name that describes the channel. The name is the primary identifier for the
	// channel, and must be unique for your account in the AWS Region and channel
	// group.
	//
	// This member is required.
	ChannelName *string

	// The date and time the channel was created.
	//
	// This member is required.
	CreatedAt *time.Time

	// The date and time the channel was modified.
	//
	// This member is required.
	ModifiedAt *time.Time

	// The description for your channel.
	Description *string

	// The list of ingest endpoints.
	IngestEndpoints []types.IngestEndpoint

	// The comma-separated list of tag key:value pairs assigned to the channel.
	Tags map[string]string

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

	noSmithyDocumentSerde
}

func (c *Client) addOperationCreateChannelMiddlewares(stack *middleware.Stack, options Options) (err error) {
	err = stack.Serialize.Add(&awsRestjson1_serializeOpCreateChannel{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsRestjson1_deserializeOpCreateChannel{}, middleware.After)
	if err != nil {
		return err
	}
	if err = addSetLoggerMiddleware(stack, options); err != nil {
		return err
	}
	if err = awsmiddleware.AddClientRequestIDMiddleware(stack); err != nil {
		return err
	}
	if err = smithyhttp.AddComputeContentLengthMiddleware(stack); err != nil {
		return err
	}
	if err = addResolveEndpointMiddleware(stack, options); err != nil {
		return err
	}
	if err = v4.AddComputePayloadSHA256Middleware(stack); err != nil {
		return err
	}
	if err = addRetryMiddlewares(stack, options); err != nil {
		return err
	}
	if err = addHTTPSignerV4Middleware(stack, options); err != nil {
		return err
	}
	if err = awsmiddleware.AddRawResponseToMetadata(stack); err != nil {
		return err
	}
	if err = awsmiddleware.AddRecordResponseTiming(stack); 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 = addIdempotencyToken_opCreateChannelMiddleware(stack, options); err != nil {
		return err
	}
	if err = addOpCreateChannelValidationMiddleware(stack); err != nil {
		return err
	}
	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opCreateChannel(options.Region), middleware.Before); err != nil {
		return err
	}
	if err = awsmiddleware.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
	}
	return nil
}

type idempotencyToken_initializeOpCreateChannel struct {
	tokenProvider IdempotencyTokenProvider
}

func (*idempotencyToken_initializeOpCreateChannel) ID() string {
	return "OperationIdempotencyTokenAutoFill"
}

func (m *idempotencyToken_initializeOpCreateChannel) HandleInitialize(ctx context.Context, in middleware.InitializeInput, next middleware.InitializeHandler) (
	out middleware.InitializeOutput, metadata middleware.Metadata, err error,
) {
	if m.tokenProvider == nil {
		return next.HandleInitialize(ctx, in)
	}

	input, ok := in.Parameters.(*CreateChannelInput)
	if !ok {
		return out, metadata, fmt.Errorf("expected middleware input to be of type *CreateChannelInput ")
	}

	if input.ClientToken == nil {
		t, err := m.tokenProvider.GetIdempotencyToken()
		if err != nil {
			return out, metadata, err
		}
		input.ClientToken = &t
	}
	return next.HandleInitialize(ctx, in)
}
func addIdempotencyToken_opCreateChannelMiddleware(stack *middleware.Stack, cfg Options) error {
	return stack.Initialize.Add(&idempotencyToken_initializeOpCreateChannel{tokenProvider: cfg.IdempotencyTokenProvider}, middleware.Before)
}

func newServiceMetadataMiddleware_opCreateChannel(region string) *awsmiddleware.RegisterServiceMetadata {
	return &awsmiddleware.RegisterServiceMetadata{
		Region:        region,
		ServiceID:     ServiceID,
		SigningName:   "mediapackagev2",
		OperationName: "CreateChannel",
	}
}