1// Code generated by smithy-go-codegen DO NOT EDIT.
2
3package mediaconvert
4
5import (
6	"context"
7	"fmt"
8	awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
9	"github.com/aws/aws-sdk-go-v2/aws/signer/v4"
10	"github.com/aws/aws-sdk-go-v2/service/mediaconvert/types"
11	"github.com/aws/smithy-go/middleware"
12	smithyhttp "github.com/aws/smithy-go/transport/http"
13)
14
15// Retrieve a JSON array of up to twenty of your presets. This will return the
16// presets themselves, not just a list of them. To retrieve the next twenty
17// presets, use the nextToken string returned with the array.
18func (c *Client) ListPresets(ctx context.Context, params *ListPresetsInput, optFns ...func(*Options)) (*ListPresetsOutput, error) {
19	if params == nil {
20		params = &ListPresetsInput{}
21	}
22
23	result, metadata, err := c.invokeOperation(ctx, "ListPresets", params, optFns, addOperationListPresetsMiddlewares)
24	if err != nil {
25		return nil, err
26	}
27
28	out := result.(*ListPresetsOutput)
29	out.ResultMetadata = metadata
30	return out, nil
31}
32
33type ListPresetsInput struct {
34
35	// Optionally, specify a preset category to limit responses to only presets from
36	// that category.
37	Category *string
38
39	// Optional. When you request a list of presets, you can choose to list them
40	// alphabetically by NAME or chronologically by CREATION_DATE. If you don't
41	// specify, the service will list them by name.
42	ListBy types.PresetListBy
43
44	// Optional. Number of presets, up to twenty, that will be returned at one time
45	MaxResults int32
46
47	// Use this string, provided with the response to a previous request, to request
48	// the next batch of presets.
49	NextToken *string
50
51	// Optional. When you request lists of resources, you can specify whether they are
52	// sorted in ASCENDING or DESCENDING order. Default varies by resource.
53	Order types.Order
54}
55
56type ListPresetsOutput struct {
57
58	// Use this string to request the next batch of presets.
59	NextToken *string
60
61	// List of presets
62	Presets []types.Preset
63
64	// Metadata pertaining to the operation's result.
65	ResultMetadata middleware.Metadata
66}
67
68func addOperationListPresetsMiddlewares(stack *middleware.Stack, options Options) (err error) {
69	err = stack.Serialize.Add(&awsRestjson1_serializeOpListPresets{}, middleware.After)
70	if err != nil {
71		return err
72	}
73	err = stack.Deserialize.Add(&awsRestjson1_deserializeOpListPresets{}, middleware.After)
74	if err != nil {
75		return err
76	}
77	if err = addSetLoggerMiddleware(stack, options); err != nil {
78		return err
79	}
80	if err = awsmiddleware.AddClientRequestIDMiddleware(stack); err != nil {
81		return err
82	}
83	if err = smithyhttp.AddComputeContentLengthMiddleware(stack); err != nil {
84		return err
85	}
86	if err = addResolveEndpointMiddleware(stack, options); err != nil {
87		return err
88	}
89	if err = v4.AddComputePayloadSHA256Middleware(stack); err != nil {
90		return err
91	}
92	if err = addRetryMiddlewares(stack, options); err != nil {
93		return err
94	}
95	if err = addHTTPSignerV4Middleware(stack, options); err != nil {
96		return err
97	}
98	if err = awsmiddleware.AddRawResponseToMetadata(stack); err != nil {
99		return err
100	}
101	if err = awsmiddleware.AddRecordResponseTiming(stack); err != nil {
102		return err
103	}
104	if err = addClientUserAgent(stack); err != nil {
105		return err
106	}
107	if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil {
108		return err
109	}
110	if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil {
111		return err
112	}
113	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opListPresets(options.Region), middleware.Before); err != nil {
114		return err
115	}
116	if err = addRequestIDRetrieverMiddleware(stack); err != nil {
117		return err
118	}
119	if err = addResponseErrorMiddleware(stack); err != nil {
120		return err
121	}
122	if err = addRequestResponseLogging(stack, options); err != nil {
123		return err
124	}
125	return nil
126}
127
128// ListPresetsAPIClient is a client that implements the ListPresets operation.
129type ListPresetsAPIClient interface {
130	ListPresets(context.Context, *ListPresetsInput, ...func(*Options)) (*ListPresetsOutput, error)
131}
132
133var _ ListPresetsAPIClient = (*Client)(nil)
134
135// ListPresetsPaginatorOptions is the paginator options for ListPresets
136type ListPresetsPaginatorOptions struct {
137	// Optional. Number of presets, up to twenty, that will be returned at one time
138	Limit int32
139
140	// Set to true if pagination should stop if the service returns a pagination token
141	// that matches the most recent token provided to the service.
142	StopOnDuplicateToken bool
143}
144
145// ListPresetsPaginator is a paginator for ListPresets
146type ListPresetsPaginator struct {
147	options   ListPresetsPaginatorOptions
148	client    ListPresetsAPIClient
149	params    *ListPresetsInput
150	nextToken *string
151	firstPage bool
152}
153
154// NewListPresetsPaginator returns a new ListPresetsPaginator
155func NewListPresetsPaginator(client ListPresetsAPIClient, params *ListPresetsInput, optFns ...func(*ListPresetsPaginatorOptions)) *ListPresetsPaginator {
156	if params == nil {
157		params = &ListPresetsInput{}
158	}
159
160	options := ListPresetsPaginatorOptions{}
161	if params.MaxResults != 0 {
162		options.Limit = params.MaxResults
163	}
164
165	for _, fn := range optFns {
166		fn(&options)
167	}
168
169	return &ListPresetsPaginator{
170		options:   options,
171		client:    client,
172		params:    params,
173		firstPage: true,
174	}
175}
176
177// HasMorePages returns a boolean indicating whether more pages are available
178func (p *ListPresetsPaginator) HasMorePages() bool {
179	return p.firstPage || p.nextToken != nil
180}
181
182// NextPage retrieves the next ListPresets page.
183func (p *ListPresetsPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*ListPresetsOutput, error) {
184	if !p.HasMorePages() {
185		return nil, fmt.Errorf("no more pages available")
186	}
187
188	params := *p.params
189	params.NextToken = p.nextToken
190
191	params.MaxResults = p.options.Limit
192
193	result, err := p.client.ListPresets(ctx, &params, optFns...)
194	if err != nil {
195		return nil, err
196	}
197	p.firstPage = false
198
199	prevToken := p.nextToken
200	p.nextToken = result.NextToken
201
202	if p.options.StopOnDuplicateToken && prevToken != nil && p.nextToken != nil && *prevToken == *p.nextToken {
203		p.nextToken = nil
204	}
205
206	return result, nil
207}
208
209func newServiceMetadataMiddleware_opListPresets(region string) *awsmiddleware.RegisterServiceMetadata {
210	return &awsmiddleware.RegisterServiceMetadata{
211		Region:        region,
212		ServiceID:     ServiceID,
213		SigningName:   "mediaconvert",
214		OperationName: "ListPresets",
215	}
216}
217