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, c.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	noSmithyDocumentSerde
56}
57
58type ListPresetsOutput struct {
59
60	// Use this string to request the next batch of presets.
61	NextToken *string
62
63	// List of presets
64	Presets []types.Preset
65
66	// Metadata pertaining to the operation's result.
67	ResultMetadata middleware.Metadata
68
69	noSmithyDocumentSerde
70}
71
72func (c *Client) addOperationListPresetsMiddlewares(stack *middleware.Stack, options Options) (err error) {
73	err = stack.Serialize.Add(&awsRestjson1_serializeOpListPresets{}, middleware.After)
74	if err != nil {
75		return err
76	}
77	err = stack.Deserialize.Add(&awsRestjson1_deserializeOpListPresets{}, middleware.After)
78	if err != nil {
79		return err
80	}
81	if err = addSetLoggerMiddleware(stack, options); err != nil {
82		return err
83	}
84	if err = awsmiddleware.AddClientRequestIDMiddleware(stack); err != nil {
85		return err
86	}
87	if err = smithyhttp.AddComputeContentLengthMiddleware(stack); err != nil {
88		return err
89	}
90	if err = addResolveEndpointMiddleware(stack, options); err != nil {
91		return err
92	}
93	if err = v4.AddComputePayloadSHA256Middleware(stack); err != nil {
94		return err
95	}
96	if err = addRetryMiddlewares(stack, options); err != nil {
97		return err
98	}
99	if err = addHTTPSignerV4Middleware(stack, options); err != nil {
100		return err
101	}
102	if err = awsmiddleware.AddRawResponseToMetadata(stack); err != nil {
103		return err
104	}
105	if err = awsmiddleware.AddRecordResponseTiming(stack); err != nil {
106		return err
107	}
108	if err = addClientUserAgent(stack); err != nil {
109		return err
110	}
111	if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil {
112		return err
113	}
114	if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil {
115		return err
116	}
117	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opListPresets(options.Region), middleware.Before); err != nil {
118		return err
119	}
120	if err = addRequestIDRetrieverMiddleware(stack); err != nil {
121		return err
122	}
123	if err = addResponseErrorMiddleware(stack); err != nil {
124		return err
125	}
126	if err = addRequestResponseLogging(stack, options); err != nil {
127		return err
128	}
129	return nil
130}
131
132// ListPresetsAPIClient is a client that implements the ListPresets operation.
133type ListPresetsAPIClient interface {
134	ListPresets(context.Context, *ListPresetsInput, ...func(*Options)) (*ListPresetsOutput, error)
135}
136
137var _ ListPresetsAPIClient = (*Client)(nil)
138
139// ListPresetsPaginatorOptions is the paginator options for ListPresets
140type ListPresetsPaginatorOptions struct {
141	// Optional. Number of presets, up to twenty, that will be returned at one time
142	Limit int32
143
144	// Set to true if pagination should stop if the service returns a pagination token
145	// that matches the most recent token provided to the service.
146	StopOnDuplicateToken bool
147}
148
149// ListPresetsPaginator is a paginator for ListPresets
150type ListPresetsPaginator struct {
151	options   ListPresetsPaginatorOptions
152	client    ListPresetsAPIClient
153	params    *ListPresetsInput
154	nextToken *string
155	firstPage bool
156}
157
158// NewListPresetsPaginator returns a new ListPresetsPaginator
159func NewListPresetsPaginator(client ListPresetsAPIClient, params *ListPresetsInput, optFns ...func(*ListPresetsPaginatorOptions)) *ListPresetsPaginator {
160	if params == nil {
161		params = &ListPresetsInput{}
162	}
163
164	options := ListPresetsPaginatorOptions{}
165	if params.MaxResults != 0 {
166		options.Limit = params.MaxResults
167	}
168
169	for _, fn := range optFns {
170		fn(&options)
171	}
172
173	return &ListPresetsPaginator{
174		options:   options,
175		client:    client,
176		params:    params,
177		firstPage: true,
178	}
179}
180
181// HasMorePages returns a boolean indicating whether more pages are available
182func (p *ListPresetsPaginator) HasMorePages() bool {
183	return p.firstPage || p.nextToken != nil
184}
185
186// NextPage retrieves the next ListPresets page.
187func (p *ListPresetsPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*ListPresetsOutput, error) {
188	if !p.HasMorePages() {
189		return nil, fmt.Errorf("no more pages available")
190	}
191
192	params := *p.params
193	params.NextToken = p.nextToken
194
195	params.MaxResults = p.options.Limit
196
197	result, err := p.client.ListPresets(ctx, &params, optFns...)
198	if err != nil {
199		return nil, err
200	}
201	p.firstPage = false
202
203	prevToken := p.nextToken
204	p.nextToken = result.NextToken
205
206	if p.options.StopOnDuplicateToken && prevToken != nil && p.nextToken != nil && *prevToken == *p.nextToken {
207		p.nextToken = nil
208	}
209
210	return result, nil
211}
212
213func newServiceMetadataMiddleware_opListPresets(region string) *awsmiddleware.RegisterServiceMetadata {
214	return &awsmiddleware.RegisterServiceMetadata{
215		Region:        region,
216		ServiceID:     ServiceID,
217		SigningName:   "mediaconvert",
218		OperationName: "ListPresets",
219	}
220}
221