1// Copyright 2020 Google LLC
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     https://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15// Code generated by protoc-gen-go_gapic. DO NOT EDIT.
16
17package cx
18
19import (
20	"context"
21	"fmt"
22	"math"
23	"net/url"
24	"time"
25
26	"github.com/golang/protobuf/proto"
27	gax "github.com/googleapis/gax-go/v2"
28	"google.golang.org/api/iterator"
29	"google.golang.org/api/option"
30	gtransport "google.golang.org/api/transport/grpc"
31	cxpb "google.golang.org/genproto/googleapis/cloud/dialogflow/cx/v3beta1"
32	"google.golang.org/grpc"
33	"google.golang.org/grpc/codes"
34	"google.golang.org/grpc/metadata"
35)
36
37var newWebhooksClientHook clientHook
38
39// WebhooksCallOptions contains the retry settings for each method of WebhooksClient.
40type WebhooksCallOptions struct {
41	ListWebhooks  []gax.CallOption
42	GetWebhook    []gax.CallOption
43	CreateWebhook []gax.CallOption
44	UpdateWebhook []gax.CallOption
45	DeleteWebhook []gax.CallOption
46}
47
48func defaultWebhooksClientOptions() []option.ClientOption {
49	return []option.ClientOption{
50		option.WithEndpoint("dialogflow.googleapis.com:443"),
51		option.WithGRPCDialOption(grpc.WithDisableServiceConfig()),
52		option.WithScopes(DefaultAuthScopes()...),
53		option.WithGRPCDialOption(grpc.WithDefaultCallOptions(
54			grpc.MaxCallRecvMsgSize(math.MaxInt32))),
55	}
56}
57
58func defaultWebhooksCallOptions() *WebhooksCallOptions {
59	return &WebhooksCallOptions{
60		ListWebhooks: []gax.CallOption{
61			gax.WithRetry(func() gax.Retryer {
62				return gax.OnCodes([]codes.Code{
63					codes.Unavailable,
64				}, gax.Backoff{
65					Initial:    100 * time.Millisecond,
66					Max:        60000 * time.Millisecond,
67					Multiplier: 1.30,
68				})
69			}),
70		},
71		GetWebhook: []gax.CallOption{
72			gax.WithRetry(func() gax.Retryer {
73				return gax.OnCodes([]codes.Code{
74					codes.Unavailable,
75				}, gax.Backoff{
76					Initial:    100 * time.Millisecond,
77					Max:        60000 * time.Millisecond,
78					Multiplier: 1.30,
79				})
80			}),
81		},
82		CreateWebhook: []gax.CallOption{
83			gax.WithRetry(func() gax.Retryer {
84				return gax.OnCodes([]codes.Code{
85					codes.Unavailable,
86				}, gax.Backoff{
87					Initial:    100 * time.Millisecond,
88					Max:        60000 * time.Millisecond,
89					Multiplier: 1.30,
90				})
91			}),
92		},
93		UpdateWebhook: []gax.CallOption{
94			gax.WithRetry(func() gax.Retryer {
95				return gax.OnCodes([]codes.Code{
96					codes.Unavailable,
97				}, gax.Backoff{
98					Initial:    100 * time.Millisecond,
99					Max:        60000 * time.Millisecond,
100					Multiplier: 1.30,
101				})
102			}),
103		},
104		DeleteWebhook: []gax.CallOption{
105			gax.WithRetry(func() gax.Retryer {
106				return gax.OnCodes([]codes.Code{
107					codes.Unavailable,
108				}, gax.Backoff{
109					Initial:    100 * time.Millisecond,
110					Max:        60000 * time.Millisecond,
111					Multiplier: 1.30,
112				})
113			}),
114		},
115	}
116}
117
118// WebhooksClient is a client for interacting with Dialogflow API.
119//
120// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
121type WebhooksClient struct {
122	// Connection pool of gRPC connections to the service.
123	connPool gtransport.ConnPool
124
125	// flag to opt out of default deadlines via GOOGLE_API_GO_EXPERIMENTAL_DISABLE_DEFAULT_DEADLINE
126	disableDeadlines bool
127
128	// The gRPC API client.
129	webhooksClient cxpb.WebhooksClient
130
131	// The call options for this service.
132	CallOptions *WebhooksCallOptions
133
134	// The x-goog-* metadata to be sent with each request.
135	xGoogMetadata metadata.MD
136}
137
138// NewWebhooksClient creates a new webhooks client.
139//
140// Service for managing Webhooks.
141func NewWebhooksClient(ctx context.Context, opts ...option.ClientOption) (*WebhooksClient, error) {
142	clientOpts := defaultWebhooksClientOptions()
143
144	if newWebhooksClientHook != nil {
145		hookOpts, err := newWebhooksClientHook(ctx, clientHookParams{})
146		if err != nil {
147			return nil, err
148		}
149		clientOpts = append(clientOpts, hookOpts...)
150	}
151
152	disableDeadlines, err := checkDisableDeadlines()
153	if err != nil {
154		return nil, err
155	}
156
157	connPool, err := gtransport.DialPool(ctx, append(clientOpts, opts...)...)
158	if err != nil {
159		return nil, err
160	}
161	c := &WebhooksClient{
162		connPool:         connPool,
163		disableDeadlines: disableDeadlines,
164		CallOptions:      defaultWebhooksCallOptions(),
165
166		webhooksClient: cxpb.NewWebhooksClient(connPool),
167	}
168	c.setGoogleClientInfo()
169
170	return c, nil
171}
172
173// Connection returns a connection to the API service.
174//
175// Deprecated.
176func (c *WebhooksClient) Connection() *grpc.ClientConn {
177	return c.connPool.Conn()
178}
179
180// Close closes the connection to the API service. The user should invoke this when
181// the client is no longer required.
182func (c *WebhooksClient) Close() error {
183	return c.connPool.Close()
184}
185
186// setGoogleClientInfo sets the name and version of the application in
187// the `x-goog-api-client` header passed on each request. Intended for
188// use by Google-written clients.
189func (c *WebhooksClient) setGoogleClientInfo(keyval ...string) {
190	kv := append([]string{"gl-go", versionGo()}, keyval...)
191	kv = append(kv, "gapic", versionClient, "gax", gax.Version, "grpc", grpc.Version)
192	c.xGoogMetadata = metadata.Pairs("x-goog-api-client", gax.XGoogHeader(kv...))
193}
194
195// ListWebhooks returns the list of all webhooks in the specified agent.
196func (c *WebhooksClient) ListWebhooks(ctx context.Context, req *cxpb.ListWebhooksRequest, opts ...gax.CallOption) *WebhookIterator {
197	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent())))
198	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
199	opts = append(c.CallOptions.ListWebhooks[0:len(c.CallOptions.ListWebhooks):len(c.CallOptions.ListWebhooks)], opts...)
200	it := &WebhookIterator{}
201	req = proto.Clone(req).(*cxpb.ListWebhooksRequest)
202	it.InternalFetch = func(pageSize int, pageToken string) ([]*cxpb.Webhook, string, error) {
203		var resp *cxpb.ListWebhooksResponse
204		req.PageToken = pageToken
205		if pageSize > math.MaxInt32 {
206			req.PageSize = math.MaxInt32
207		} else {
208			req.PageSize = int32(pageSize)
209		}
210		err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
211			var err error
212			resp, err = c.webhooksClient.ListWebhooks(ctx, req, settings.GRPC...)
213			return err
214		}, opts...)
215		if err != nil {
216			return nil, "", err
217		}
218
219		it.Response = resp
220		return resp.GetWebhooks(), resp.GetNextPageToken(), nil
221	}
222	fetch := func(pageSize int, pageToken string) (string, error) {
223		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
224		if err != nil {
225			return "", err
226		}
227		it.items = append(it.items, items...)
228		return nextPageToken, nil
229	}
230	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
231	it.pageInfo.MaxSize = int(req.GetPageSize())
232	it.pageInfo.Token = req.GetPageToken()
233	return it
234}
235
236// GetWebhook retrieves the specified webhook.
237func (c *WebhooksClient) GetWebhook(ctx context.Context, req *cxpb.GetWebhookRequest, opts ...gax.CallOption) (*cxpb.Webhook, error) {
238	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
239		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
240		defer cancel()
241		ctx = cctx
242	}
243	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))
244	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
245	opts = append(c.CallOptions.GetWebhook[0:len(c.CallOptions.GetWebhook):len(c.CallOptions.GetWebhook)], opts...)
246	var resp *cxpb.Webhook
247	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
248		var err error
249		resp, err = c.webhooksClient.GetWebhook(ctx, req, settings.GRPC...)
250		return err
251	}, opts...)
252	if err != nil {
253		return nil, err
254	}
255	return resp, nil
256}
257
258// CreateWebhook creates a webhook in the specified agent.
259func (c *WebhooksClient) CreateWebhook(ctx context.Context, req *cxpb.CreateWebhookRequest, opts ...gax.CallOption) (*cxpb.Webhook, error) {
260	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
261		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
262		defer cancel()
263		ctx = cctx
264	}
265	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent())))
266	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
267	opts = append(c.CallOptions.CreateWebhook[0:len(c.CallOptions.CreateWebhook):len(c.CallOptions.CreateWebhook)], opts...)
268	var resp *cxpb.Webhook
269	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
270		var err error
271		resp, err = c.webhooksClient.CreateWebhook(ctx, req, settings.GRPC...)
272		return err
273	}, opts...)
274	if err != nil {
275		return nil, err
276	}
277	return resp, nil
278}
279
280// UpdateWebhook updates the specified webhook.
281func (c *WebhooksClient) UpdateWebhook(ctx context.Context, req *cxpb.UpdateWebhookRequest, opts ...gax.CallOption) (*cxpb.Webhook, error) {
282	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
283		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
284		defer cancel()
285		ctx = cctx
286	}
287	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "webhook.name", url.QueryEscape(req.GetWebhook().GetName())))
288	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
289	opts = append(c.CallOptions.UpdateWebhook[0:len(c.CallOptions.UpdateWebhook):len(c.CallOptions.UpdateWebhook)], opts...)
290	var resp *cxpb.Webhook
291	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
292		var err error
293		resp, err = c.webhooksClient.UpdateWebhook(ctx, req, settings.GRPC...)
294		return err
295	}, opts...)
296	if err != nil {
297		return nil, err
298	}
299	return resp, nil
300}
301
302// DeleteWebhook deletes the specified webhook.
303func (c *WebhooksClient) DeleteWebhook(ctx context.Context, req *cxpb.DeleteWebhookRequest, opts ...gax.CallOption) error {
304	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
305		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
306		defer cancel()
307		ctx = cctx
308	}
309	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))
310	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
311	opts = append(c.CallOptions.DeleteWebhook[0:len(c.CallOptions.DeleteWebhook):len(c.CallOptions.DeleteWebhook)], opts...)
312	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
313		var err error
314		_, err = c.webhooksClient.DeleteWebhook(ctx, req, settings.GRPC...)
315		return err
316	}, opts...)
317	return err
318}
319
320// WebhookIterator manages a stream of *cxpb.Webhook.
321type WebhookIterator struct {
322	items    []*cxpb.Webhook
323	pageInfo *iterator.PageInfo
324	nextFunc func() error
325
326	// Response is the raw response for the current page.
327	// It must be cast to the RPC response type.
328	// Calling Next() or InternalFetch() updates this value.
329	Response interface{}
330
331	// InternalFetch is for use by the Google Cloud Libraries only.
332	// It is not part of the stable interface of this package.
333	//
334	// InternalFetch returns results from a single call to the underlying RPC.
335	// The number of results is no greater than pageSize.
336	// If there are no more results, nextPageToken is empty and err is nil.
337	InternalFetch func(pageSize int, pageToken string) (results []*cxpb.Webhook, nextPageToken string, err error)
338}
339
340// PageInfo supports pagination. See the google.golang.org/api/iterator package for details.
341func (it *WebhookIterator) PageInfo() *iterator.PageInfo {
342	return it.pageInfo
343}
344
345// Next returns the next result. Its second return value is iterator.Done if there are no more
346// results. Once Next returns Done, all subsequent calls will return Done.
347func (it *WebhookIterator) Next() (*cxpb.Webhook, error) {
348	var item *cxpb.Webhook
349	if err := it.nextFunc(); err != nil {
350		return item, err
351	}
352	item = it.items[0]
353	it.items = it.items[1:]
354	return item, nil
355}
356
357func (it *WebhookIterator) bufLen() int {
358	return len(it.items)
359}
360
361func (it *WebhookIterator) takeBuf() interface{} {
362	b := it.items
363	it.items = nil
364	return b
365}
366