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

package ec2

import (
	"context"
	"fmt"
	awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
	"github.com/aws/aws-sdk-go-v2/service/ec2/types"
	"github.com/aws/smithy-go/middleware"
	smithyhttp "github.com/aws/smithy-go/transport/http"
)

// Describes the status of the specified volumes. Volume status provides the
// result of the checks performed on your volumes to determine events that can
// impair the performance of your volumes. The performance of a volume can be
// affected if an issue occurs on the volume's underlying host. If the volume's
// underlying host experiences a power outage or system issue, after the system is
// restored, there could be data inconsistencies on the volume. Volume events
// notify you if this occurs. Volume actions notify you if any action needs to be
// taken in response to the event.
//
// The DescribeVolumeStatus operation provides the following information about the
// specified volumes:
//
// Status: Reflects the current status of the volume. The possible values are ok ,
// impaired , warning , or insufficient-data . If all checks pass, the overall
// status of the volume is ok . If the check fails, the overall status is impaired
// . If the status is insufficient-data , then the checks might still be taking
// place on your volume at the time. We recommend that you retry the request. For
// more information about volume status, see [Monitor the status of your volumes]in the Amazon EBS User Guide.
//
// Events: Reflect the cause of a volume status and might require you to take
// action. For example, if your volume returns an impaired status, then the volume
// event might be potential-data-inconsistency . This means that your volume has
// been affected by an issue with the underlying host, has all I/O operations
// disabled, and might have inconsistent data.
//
// Actions: Reflect the actions you might have to take in response to an event.
// For example, if the status of the volume is impaired and the volume event shows
// potential-data-inconsistency , then the action shows enable-volume-io . This
// means that you may want to enable the I/O operations for the volume by calling
// the EnableVolumeIOaction and then check the volume for data consistency.
//
// Volume status is based on the volume status checks, and does not reflect the
// volume state. Therefore, volume status does not indicate volumes in the error
// state (for example, when a volume is incapable of accepting I/O.)
//
// The order of the elements in the response, including those within nested
// structures, might vary. Applications should not assume the elements appear in a
// particular order.
//
// [Monitor the status of your volumes]: https://docs.aws.amazon.com/ebs/latest/userguide/monitoring-volume-status.html
func (c *Client) DescribeVolumeStatus(ctx context.Context, params *DescribeVolumeStatusInput, optFns ...func(*Options)) (*DescribeVolumeStatusOutput, error) {
	if params == nil {
		params = &DescribeVolumeStatusInput{}
	}

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

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

type DescribeVolumeStatusInput struct {

	// Checks whether you have the required permissions for the action, without
	// actually making the request, and provides an error response. If you have the
	// required permissions, the error response is DryRunOperation . Otherwise, it is
	// UnauthorizedOperation .
	DryRun *bool

	// The filters.
	//
	//   - action.code - The action code for the event (for example, enable-volume-io ).
	//
	//   - action.description - A description of the action.
	//
	//   - action.event-id - The event ID associated with the action.
	//
	//   - availability-zone - The Availability Zone of the instance.
	//
	//   - event.description - A description of the event.
	//
	//   - event.event-id - The event ID.
	//
	//   - event.event-type - The event type (for io-enabled : passed | failed ; for
	//   io-performance : io-performance:degraded | io-performance:severely-degraded |
	//   io-performance:stalled ).
	//
	//   - event.not-after - The latest end time for the event.
	//
	//   - event.not-before - The earliest start time for the event.
	//
	//   - volume-status.details-name - The cause for volume-status.status ( io-enabled
	//   | io-performance ).
	//
	//   - volume-status.details-status - The status of volume-status.details-name (for
	//   io-enabled : passed | failed ; for io-performance : normal | degraded |
	//   severely-degraded | stalled ).
	//
	//   - volume-status.status - The status of the volume ( ok | impaired | warning |
	//   insufficient-data ).
	Filters []types.Filter

	// The maximum number of items to return for this request. To get the next page of
	// items, make another request with the token returned in the output. For more
	// information, see [Pagination].
	//
	// [Pagination]: https://docs.aws.amazon.com/AWSEC2/latest/APIReference/Query-Requests.html#api-pagination
	MaxResults *int32

	// The token returned from a previous paginated request. Pagination continues from
	// the end of the items returned by the previous request.
	NextToken *string

	// The IDs of the volumes.
	//
	// Default: Describes all your volumes.
	VolumeIds []string

	noSmithyDocumentSerde
}

type DescribeVolumeStatusOutput struct {

	// The token to include in another request to get the next page of items. This
	// value is null when there are no more items to return.
	NextToken *string

	// Information about the status of the volumes.
	VolumeStatuses []types.VolumeStatusItem

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

	noSmithyDocumentSerde
}

func (c *Client) addOperationDescribeVolumeStatusMiddlewares(stack *middleware.Stack, options Options) (err error) {
	if err := stack.Serialize.Add(&setOperationInputMiddleware{}, middleware.After); err != nil {
		return err
	}
	err = stack.Serialize.Add(&awsEc2query_serializeOpDescribeVolumeStatus{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsEc2query_deserializeOpDescribeVolumeStatus{}, middleware.After)
	if err != nil {
		return err
	}
	if err := addProtocolFinalizerMiddlewares(stack, options, "DescribeVolumeStatus"); 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 = stack.Initialize.Add(newServiceMetadataMiddleware_opDescribeVolumeStatus(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 = addSpanInitializeStart(stack); err != nil {
		return err
	}
	if err = addSpanInitializeEnd(stack); err != nil {
		return err
	}
	if err = addSpanBuildRequestStart(stack); err != nil {
		return err
	}
	if err = addSpanBuildRequestEnd(stack); err != nil {
		return err
	}
	return nil
}

// DescribeVolumeStatusPaginatorOptions is the paginator options for
// DescribeVolumeStatus
type DescribeVolumeStatusPaginatorOptions struct {
	// The maximum number of items to return for this request. To get the next page of
	// items, make another request with the token returned in the output. For more
	// information, see [Pagination].
	//
	// [Pagination]: https://docs.aws.amazon.com/AWSEC2/latest/APIReference/Query-Requests.html#api-pagination
	Limit int32

	// Set to true if pagination should stop if the service returns a pagination token
	// that matches the most recent token provided to the service.
	StopOnDuplicateToken bool
}

// DescribeVolumeStatusPaginator is a paginator for DescribeVolumeStatus
type DescribeVolumeStatusPaginator struct {
	options   DescribeVolumeStatusPaginatorOptions
	client    DescribeVolumeStatusAPIClient
	params    *DescribeVolumeStatusInput
	nextToken *string
	firstPage bool
}

// NewDescribeVolumeStatusPaginator returns a new DescribeVolumeStatusPaginator
func NewDescribeVolumeStatusPaginator(client DescribeVolumeStatusAPIClient, params *DescribeVolumeStatusInput, optFns ...func(*DescribeVolumeStatusPaginatorOptions)) *DescribeVolumeStatusPaginator {
	if params == nil {
		params = &DescribeVolumeStatusInput{}
	}

	options := DescribeVolumeStatusPaginatorOptions{}
	if params.MaxResults != nil {
		options.Limit = *params.MaxResults
	}

	for _, fn := range optFns {
		fn(&options)
	}

	return &DescribeVolumeStatusPaginator{
		options:   options,
		client:    client,
		params:    params,
		firstPage: true,
		nextToken: params.NextToken,
	}
}

// HasMorePages returns a boolean indicating whether more pages are available
func (p *DescribeVolumeStatusPaginator) HasMorePages() bool {
	return p.firstPage || (p.nextToken != nil && len(*p.nextToken) != 0)
}

// NextPage retrieves the next DescribeVolumeStatus page.
func (p *DescribeVolumeStatusPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*DescribeVolumeStatusOutput, error) {
	if !p.HasMorePages() {
		return nil, fmt.Errorf("no more pages available")
	}

	params := *p.params
	params.NextToken = p.nextToken

	var limit *int32
	if p.options.Limit > 0 {
		limit = &p.options.Limit
	}
	params.MaxResults = limit

	optFns = append([]func(*Options){
		addIsPaginatorUserAgent,
	}, optFns...)
	result, err := p.client.DescribeVolumeStatus(ctx, &params, optFns...)
	if err != nil {
		return nil, err
	}
	p.firstPage = false

	prevToken := p.nextToken
	p.nextToken = result.NextToken

	if p.options.StopOnDuplicateToken &&
		prevToken != nil &&
		p.nextToken != nil &&
		*prevToken == *p.nextToken {
		p.nextToken = nil
	}

	return result, nil
}

// DescribeVolumeStatusAPIClient is a client that implements the
// DescribeVolumeStatus operation.
type DescribeVolumeStatusAPIClient interface {
	DescribeVolumeStatus(context.Context, *DescribeVolumeStatusInput, ...func(*Options)) (*DescribeVolumeStatusOutput, error)
}

var _ DescribeVolumeStatusAPIClient = (*Client)(nil)

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