// Copyright 2026 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 protoc-gen-go_gapic. DO NOT EDIT.

package datatransfer

import (
	datatransferpb "cloud.google.com/go/bigquery/datatransfer/apiv1/datatransferpb"
	"google.golang.org/api/iterator"
	locationpb "google.golang.org/genproto/googleapis/cloud/location"
)

// DataSourceIterator manages a stream of *datatransferpb.DataSource.
type DataSourceIterator struct {
	items    []*datatransferpb.DataSource
	pageInfo *iterator.PageInfo
	nextFunc func() error

	// Response is the raw response for the current page.
	// It must be cast to the RPC response type.
	// Calling Next() or InternalFetch() updates this value.
	Response interface{}

	// 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 []*datatransferpb.DataSource, nextPageToken string, err error)
}

// PageInfo supports pagination. See the [google.golang.org/api/iterator] package for details.
func (it *DataSourceIterator) 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 *DataSourceIterator) Next() (*datatransferpb.DataSource, error) {
	var item *datatransferpb.DataSource
	if err := it.nextFunc(); err != nil {
		return item, err
	}
	item = it.items[0]
	it.items = it.items[1:]
	return item, nil
}

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

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

// LocationIterator manages a stream of *locationpb.Location.
type LocationIterator struct {
	items    []*locationpb.Location
	pageInfo *iterator.PageInfo
	nextFunc func() error

	// Response is the raw response for the current page.
	// It must be cast to the RPC response type.
	// Calling Next() or InternalFetch() updates this value.
	Response interface{}

	// 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 []*locationpb.Location, nextPageToken string, err error)
}

// PageInfo supports pagination. See the [google.golang.org/api/iterator] package for details.
func (it *LocationIterator) 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 *LocationIterator) Next() (*locationpb.Location, error) {
	var item *locationpb.Location
	if err := it.nextFunc(); err != nil {
		return item, err
	}
	item = it.items[0]
	it.items = it.items[1:]
	return item, nil
}

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

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

// TransferConfigIterator manages a stream of *datatransferpb.TransferConfig.
type TransferConfigIterator struct {
	items    []*datatransferpb.TransferConfig
	pageInfo *iterator.PageInfo
	nextFunc func() error

	// Response is the raw response for the current page.
	// It must be cast to the RPC response type.
	// Calling Next() or InternalFetch() updates this value.
	Response interface{}

	// 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 []*datatransferpb.TransferConfig, nextPageToken string, err error)
}

// PageInfo supports pagination. See the [google.golang.org/api/iterator] package for details.
func (it *TransferConfigIterator) 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 *TransferConfigIterator) Next() (*datatransferpb.TransferConfig, error) {
	var item *datatransferpb.TransferConfig
	if err := it.nextFunc(); err != nil {
		return item, err
	}
	item = it.items[0]
	it.items = it.items[1:]
	return item, nil
}

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

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

// TransferMessageIterator manages a stream of *datatransferpb.TransferMessage.
type TransferMessageIterator struct {
	items    []*datatransferpb.TransferMessage
	pageInfo *iterator.PageInfo
	nextFunc func() error

	// Response is the raw response for the current page.
	// It must be cast to the RPC response type.
	// Calling Next() or InternalFetch() updates this value.
	Response interface{}

	// 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 []*datatransferpb.TransferMessage, nextPageToken string, err error)
}

// PageInfo supports pagination. See the [google.golang.org/api/iterator] package for details.
func (it *TransferMessageIterator) 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 *TransferMessageIterator) Next() (*datatransferpb.TransferMessage, error) {
	var item *datatransferpb.TransferMessage
	if err := it.nextFunc(); err != nil {
		return item, err
	}
	item = it.items[0]
	it.items = it.items[1:]
	return item, nil
}

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

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

// TransferRunIterator manages a stream of *datatransferpb.TransferRun.
type TransferRunIterator struct {
	items    []*datatransferpb.TransferRun
	pageInfo *iterator.PageInfo
	nextFunc func() error

	// Response is the raw response for the current page.
	// It must be cast to the RPC response type.
	// Calling Next() or InternalFetch() updates this value.
	Response interface{}

	// 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 []*datatransferpb.TransferRun, nextPageToken string, err error)
}

// PageInfo supports pagination. See the [google.golang.org/api/iterator] package for details.
func (it *TransferRunIterator) 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 *TransferRunIterator) Next() (*datatransferpb.TransferRun, error) {
	var item *datatransferpb.TransferRun
	if err := it.nextFunc(); err != nil {
		return item, err
	}
	item = it.items[0]
	it.items = it.items[1:]
	return item, nil
}

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

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