// Copyright 2019 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License. 
// You may obtain a copy of the License at
//
//     https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
// See the License for the specific language governing permissions and
// limitations under the License. 

// Code generated by gapic-generator.  DO NOT EDIT. 

package talent

import (
	"context"
	"math"
	"time"

	"github.com/golang/protobuf/proto"
	gax "github.com/googleapis/gax-go/v2"
	"google.golang.org/api/iterator"
	"google.golang.org/api/option"
	"google.golang.org/api/transport"
	talentpb "google.golang.org/genproto/googleapis/cloud/talent/v4beta1"
	"google.golang.org/grpc"
	"google.golang.org/grpc/codes"
	"google.golang.org/grpc/metadata"
)

// ProfileCallOptions contains the retry settings for each method of ProfileClient. 
type ProfileCallOptions struct {
	ListProfiles   []gax. CallOption
	CreateProfile  []gax. CallOption
	GetProfile     []gax. CallOption
	UpdateProfile  []gax. CallOption
	DeleteProfile  []gax. CallOption
	SearchProfiles []gax. CallOption
}

func defaultProfileClientOptions() []option. ClientOption {
	return []option. ClientOption{
		option. WithEndpoint("jobs.googleapis.com:443"),
		option. WithScopes(DefaultAuthScopes()...),
	}
}

func defaultProfileCallOptions() *ProfileCallOptions {
	retry := map[[2]string][]gax. CallOption{
		{"default", "idempotent"}: {
			gax. WithRetry(func() gax. Retryer {
				return gax. OnCodes([]codes. Code{
					codes. DeadlineExceeded,
					codes. Unavailable,
				}, gax. Backoff{
					Initial:    100 * time. Millisecond,
					Max:        60000 * time. Millisecond,
					Multiplier: 1.3,
				})
			}),
		},
	}
	return &ProfileCallOptions{
		ListProfiles:   retry[[2]string{"default", "idempotent"}],
		CreateProfile:  retry[[2]string{"default", "non_idempotent"}],
		GetProfile:     retry[[2]string{"default", "idempotent"}],
		UpdateProfile:  retry[[2]string{"default", "non_idempotent"}],
		DeleteProfile:  retry[[2]string{"default", "idempotent"}],
		SearchProfiles: retry[[2]string{"default", "non_idempotent"}],
	}
}

// ProfileClient is a client for interacting with Cloud Talent Solution API. 
//
// Methods, except Close, may be called concurrently.  However, fields must not be modified concurrently with method calls. 
type ProfileClient struct {
	// The connection to the service. 
	conn *grpc. ClientConn

	// The gRPC API client. 
	profileClient talentpb. ProfileServiceClient

	// The call options for this service. 
	CallOptions *ProfileCallOptions

	// The x-goog-* metadata to be sent with each request. 
	xGoogMetadata metadata. MD
}

// NewProfileClient creates a new profile service client. 
//
// A service that handles profile management, including profile CRUD,
// enumeration and search. 
func NewProfileClient(ctx context. Context, opts ...option. ClientOption) (*ProfileClient, error) {
	conn, err := transport. DialGRPC(ctx, append(defaultProfileClientOptions(), opts...)...)
	if err ! = nil {
		return nil, err
	}
	c := &ProfileClient{
		conn:        conn,
		CallOptions: defaultProfileCallOptions(),

		profileClient: talentpb. NewProfileServiceClient(conn),
	}
	c.setGoogleClientInfo()
	return c, nil
}

// Connection returns the client's connection to the API service. 
func (c *ProfileClient) Connection() *grpc. ClientConn {
	return c.conn
}

// Close closes the connection to the API service.  The user should invoke this when
// the client is no longer required. 
func (c *ProfileClient) Close() error {
	return c.conn. Close()
}

// setGoogleClientInfo sets the name and version of the application in
// the `x-goog-api-client` header passed on each request.  Intended for
// use by Google-written clients. 
func (c *ProfileClient) setGoogleClientInfo(keyval ...string) {
	kv := append([]string{"gl-go", versionGo()}, keyval...)
	kv = append(kv, "gapic", versionClient, "gax", gax. Version, "grpc", grpc. Version)
	c.xGoogMetadata = metadata. Pairs("x-goog-api-client", gax. XGoogHeader(kv...))
}

// ListProfiles lists profiles by filter.  The order is unspecified. 
func (c *ProfileClient) ListProfiles(ctx context. Context, req *talentpb. ListProfilesRequest, opts ...gax. CallOption) *ProfileIterator {
	ctx = insertMetadata(ctx, c.xGoogMetadata)
	opts = append(c. CallOptions. ListProfiles[0:len(c. CallOptions. ListProfiles):len(c. CallOptions. ListProfiles)], opts...)
	it := &ProfileIterator{}
	req = proto. Clone(req).(*talentpb. ListProfilesRequest)
	it. InternalFetch = func(pageSize int, pageToken string) ([]*talentpb. Profile, string, error) {
		var resp *talentpb. ListProfilesResponse
		req. PageToken = pageToken
		if pageSize > math. MaxInt32 {
			req. PageSize = math. MaxInt32
		} else {
			req. PageSize = int32(pageSize)
		}
		err := gax. Invoke(ctx, func(ctx context. Context, settings gax. CallSettings) error {
			var err error
			resp, err = c.profileClient. ListProfiles(ctx, req, settings. GRPC...)
			return err
		}, opts...)
		if err ! = nil {
			return nil, "", err
		}
		return resp. Profiles, resp. NextPageToken, nil
	}
	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it. InternalFetch(pageSize, pageToken)
		if err ! = nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}
	it.pageInfo, it.nextFunc = iterator. NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo. MaxSize = int(req. PageSize)
	return it
}

// CreateProfile creates and returns a new profile. 
func (c *ProfileClient) CreateProfile(ctx context. Context, req *talentpb. CreateProfileRequest, opts ...gax. CallOption) (*talentpb. Profile, error) {
	ctx = insertMetadata(ctx, c.xGoogMetadata)
	opts = append(c. CallOptions. CreateProfile[0:len(c. CallOptions. CreateProfile):len(c. CallOptions. CreateProfile)], opts...)
	var resp *talentpb. Profile
	err := gax. Invoke(ctx, func(ctx context. Context, settings gax. CallSettings) error {
		var err error
		resp, err = c.profileClient. CreateProfile(ctx, req, settings. GRPC...)
		return err
	}, opts...)
	if err ! = nil {
		return nil, err
	}
	return resp, nil
}

// GetProfile gets the specified profile. 
func (c *ProfileClient) GetProfile(ctx context. Context, req *talentpb. GetProfileRequest, opts ...gax. CallOption) (*talentpb. Profile, error) {
	ctx = insertMetadata(ctx, c.xGoogMetadata)
	opts = append(c. CallOptions. GetProfile[0:len(c. CallOptions. GetProfile):len(c. CallOptions. GetProfile)], opts...)
	var resp *talentpb. Profile
	err := gax. Invoke(ctx, func(ctx context. Context, settings gax. CallSettings) error {
		var err error
		resp, err = c.profileClient. GetProfile(ctx, req, settings. GRPC...)
		return err
	}, opts...)
	if err ! = nil {
		return nil, err
	}
	return resp, nil
}

// UpdateProfile updates the specified profile and returns the updated result. 
func (c *ProfileClient) UpdateProfile(ctx context. Context, req *talentpb. UpdateProfileRequest, opts ...gax. CallOption) (*talentpb. Profile, error) {
	ctx = insertMetadata(ctx, c.xGoogMetadata)
	opts = append(c. CallOptions. UpdateProfile[0:len(c. CallOptions. UpdateProfile):len(c. CallOptions. UpdateProfile)], opts...)
	var resp *talentpb. Profile
	err := gax. Invoke(ctx, func(ctx context. Context, settings gax. CallSettings) error {
		var err error
		resp, err = c.profileClient. UpdateProfile(ctx, req, settings. GRPC...)
		return err
	}, opts...)
	if err ! = nil {
		return nil, err
	}
	return resp, nil
}

// DeleteProfile deletes the specified profile. 
func (c *ProfileClient) DeleteProfile(ctx context. Context, req *talentpb. DeleteProfileRequest, opts ...gax. CallOption) error {
	ctx = insertMetadata(ctx, c.xGoogMetadata)
	opts = append(c. CallOptions. DeleteProfile[0:len(c. CallOptions. DeleteProfile):len(c. CallOptions. DeleteProfile)], opts...)
	err := gax. Invoke(ctx, func(ctx context. Context, settings gax. CallSettings) error {
		var err error
		_, err = c.profileClient. DeleteProfile(ctx, req, settings. GRPC...)
		return err
	}, opts...)
	return err
}

// SearchProfiles searches for profiles within a tenant. 
//
// For example, search by raw queries "software engineer in Mountain View" or
// search by structured filters (location filter, education filter, etc.). 
//
// See
// [SearchProfilesRequest][google.cloud.talent.v4beta1.SearchProfilesRequest]
// for more information. 
func (c *ProfileClient) SearchProfiles(ctx context. Context, req *talentpb. SearchProfilesRequest, opts ...gax. CallOption) *HistogramQueryResultIterator {
	ctx = insertMetadata(ctx, c.xGoogMetadata)
	opts = append(c. CallOptions. SearchProfiles[0:len(c. CallOptions. SearchProfiles):len(c. CallOptions. SearchProfiles)], opts...)
	it := &HistogramQueryResultIterator{}
	req = proto. Clone(req).(*talentpb. SearchProfilesRequest)
	it. InternalFetch = func(pageSize int, pageToken string) ([]*talentpb. HistogramQueryResult, string, error) {
		var resp *talentpb. SearchProfilesResponse
		req. PageToken = pageToken
		if pageSize > math. MaxInt32 {
			req. PageSize = math. MaxInt32
		} else {
			req. PageSize = int32(pageSize)
		}
		err := gax. Invoke(ctx, func(ctx context. Context, settings gax. CallSettings) error {
			var err error
			resp, err = c.profileClient. SearchProfiles(ctx, req, settings. GRPC...)
			return err
		}, opts...)
		if err ! = nil {
			return nil, "", err
		}
		return resp. HistogramQueryResults, resp. NextPageToken, nil
	}
	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it. InternalFetch(pageSize, pageToken)
		if err ! = nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}
	it.pageInfo, it.nextFunc = iterator. NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo. MaxSize = int(req. PageSize)
	return it
}

// HistogramQueryResultIterator manages a stream of *talentpb. HistogramQueryResult. 
type HistogramQueryResultIterator struct {
	items    []*talentpb. HistogramQueryResult
	pageInfo *iterator. PageInfo
	nextFunc func() error

	// InternalFetch is for use by the Google Cloud Libraries only. 
	// It is not part of the stable interface of this package. 
	//
	// InternalFetch returns results from a single call to the underlying RPC. 
	// The number of results is no greater than pageSize. 
	// If there are no more results, nextPageToken is empty and err is nil. 
	InternalFetch func(pageSize int, pageToken string) (results []*talentpb. HistogramQueryResult, nextPageToken string, err error)
}

// PageInfo supports pagination.  See the google.golang.org/api/iterator package for details. 
func (it *HistogramQueryResultIterator) PageInfo() *iterator. PageInfo {
	return it.pageInfo
}

// Next returns the next result.  Its second return value is iterator. Done if there are no more
// results.  Once Next returns Done, all subsequent calls will return Done. 
func (it *HistogramQueryResultIterator) Next() (*talentpb. HistogramQueryResult, error) {
	var item *talentpb. HistogramQueryResult
	if err := it.nextFunc(); err ! = nil {
		return item, err
	}
	item = it.items[0]
	it.items = it.items[1:]
	return item, nil
}

func (it *HistogramQueryResultIterator) bufLen() int {
	return len(it.items)
}

func (it *HistogramQueryResultIterator) takeBuf() interface{} {
	b := it.items
	it.items = nil
	return b
}

// ProfileIterator manages a stream of *talentpb. Profile. 
type ProfileIterator struct {
	items    []*talentpb. Profile
	pageInfo *iterator. PageInfo
	nextFunc func() error

	// InternalFetch is for use by the Google Cloud Libraries only. 
	// It is not part of the stable interface of this package. 
	//
	// InternalFetch returns results from a single call to the underlying RPC. 
	// The number of results is no greater than pageSize. 
	// If there are no more results, nextPageToken is empty and err is nil. 
	InternalFetch func(pageSize int, pageToken string) (results []*talentpb. Profile, nextPageToken string, err error)
}

// PageInfo supports pagination.  See the google.golang.org/api/iterator package for details. 
func (it *ProfileIterator) PageInfo() *iterator. PageInfo {
	return it.pageInfo
}

// Next returns the next result.  Its second return value is iterator. Done if there are no more
// results.  Once Next returns Done, all subsequent calls will return Done. 
func (it *ProfileIterator) Next() (*talentpb. Profile, error) {
	var item *talentpb. Profile
	if err := it.nextFunc(); err ! = nil {
		return item, err
	}
	item = it.items[0]
	it.items = it.items[1:]
	return item, nil
}

func (it *ProfileIterator) bufLen() int {
	return len(it.items)
}

func (it *ProfileIterator) takeBuf() interface{} {
	b := it.items
	it.items = nil
	return b
}
