// Code generated by sdkgen. DO NOT EDIT.

// nolint
package k8s

import (
	"context"

	"google.golang.org/grpc"

	k8s "github.com/yandex-cloud/go-genproto/yandex/cloud/k8s/v1"
	"github.com/yandex-cloud/go-genproto/yandex/cloud/operation"
)

//revive:disable

// ClusterServiceClient is a k8s.ClusterServiceClient with
// lazy GRPC connection initialization.
type ClusterServiceClient struct {
	getConn func(ctx context.Context) (*grpc.ClientConn, error)
}

// Create implements k8s.ClusterServiceClient
func (c *ClusterServiceClient) Create(ctx context.Context, in *k8s.CreateClusterRequest, opts ...grpc.CallOption) (*operation.Operation, error) {
	conn, err := c.getConn(ctx)
	if err != nil {
		return nil, err
	}
	return k8s.NewClusterServiceClient(conn).Create(ctx, in, opts...)
}

// Delete implements k8s.ClusterServiceClient
func (c *ClusterServiceClient) Delete(ctx context.Context, in *k8s.DeleteClusterRequest, opts ...grpc.CallOption) (*operation.Operation, error) {
	conn, err := c.getConn(ctx)
	if err != nil {
		return nil, err
	}
	return k8s.NewClusterServiceClient(conn).Delete(ctx, in, opts...)
}

// Get implements k8s.ClusterServiceClient
func (c *ClusterServiceClient) Get(ctx context.Context, in *k8s.GetClusterRequest, opts ...grpc.CallOption) (*k8s.Cluster, error) {
	conn, err := c.getConn(ctx)
	if err != nil {
		return nil, err
	}
	return k8s.NewClusterServiceClient(conn).Get(ctx, in, opts...)
}

// List implements k8s.ClusterServiceClient
func (c *ClusterServiceClient) List(ctx context.Context, in *k8s.ListClustersRequest, opts ...grpc.CallOption) (*k8s.ListClustersResponse, error) {
	conn, err := c.getConn(ctx)
	if err != nil {
		return nil, err
	}
	return k8s.NewClusterServiceClient(conn).List(ctx, in, opts...)
}

type ClusterIterator struct {
	ctx  context.Context
	opts []grpc.CallOption

	err           error
	started       bool
	requestedSize int64
	pageSize      int64

	client  *ClusterServiceClient
	request *k8s.ListClustersRequest

	items []*k8s.Cluster
}

func (c *ClusterServiceClient) ClusterIterator(ctx context.Context, req *k8s.ListClustersRequest, opts ...grpc.CallOption) *ClusterIterator {
	var pageSize int64
	const defaultPageSize = 1000
	pageSize = req.PageSize
	if pageSize == 0 {
		pageSize = defaultPageSize
	}
	return &ClusterIterator{
		ctx:      ctx,
		opts:     opts,
		client:   c,
		request:  req,
		pageSize: pageSize,
	}
}

func (it *ClusterIterator) Next() bool {
	if it.err != nil {
		return false
	}
	if len(it.items) > 1 {
		it.items[0] = nil
		it.items = it.items[1:]
		return true
	}
	it.items = nil // consume last item, if any

	if it.started && it.request.PageToken == "" {
		return false
	}
	it.started = true

	if it.requestedSize == 0 || it.requestedSize > it.pageSize {
		it.request.PageSize = it.pageSize
	} else {
		it.request.PageSize = it.requestedSize
	}

	response, err := it.client.List(it.ctx, it.request, it.opts...)
	it.err = err
	if err != nil {
		return false
	}

	it.items = response.Clusters
	it.request.PageToken = response.NextPageToken
	return len(it.items) > 0
}

func (it *ClusterIterator) Take(size int64) ([]*k8s.Cluster, error) {
	if it.err != nil {
		return nil, it.err
	}

	if size == 0 {
		size = 1 << 32 // something insanely large
	}
	it.requestedSize = size
	defer func() {
		// reset iterator for future calls.
		it.requestedSize = 0
	}()

	var result []*k8s.Cluster

	for it.requestedSize > 0 && it.Next() {
		it.requestedSize--
		result = append(result, it.Value())
	}

	if it.err != nil {
		return nil, it.err
	}

	return result, nil
}

func (it *ClusterIterator) TakeAll() ([]*k8s.Cluster, error) {
	return it.Take(0)
}

func (it *ClusterIterator) Value() *k8s.Cluster {
	if len(it.items) == 0 {
		panic("calling Value on empty iterator")
	}
	return it.items[0]
}

func (it *ClusterIterator) Error() error {
	return it.err
}

// ListNodeGroups implements k8s.ClusterServiceClient
func (c *ClusterServiceClient) ListNodeGroups(ctx context.Context, in *k8s.ListClusterNodeGroupsRequest, opts ...grpc.CallOption) (*k8s.ListClusterNodeGroupsResponse, error) {
	conn, err := c.getConn(ctx)
	if err != nil {
		return nil, err
	}
	return k8s.NewClusterServiceClient(conn).ListNodeGroups(ctx, in, opts...)
}

type ClusterNodeGroupsIterator struct {
	ctx  context.Context
	opts []grpc.CallOption

	err           error
	started       bool
	requestedSize int64
	pageSize      int64

	client  *ClusterServiceClient
	request *k8s.ListClusterNodeGroupsRequest

	items []*k8s.NodeGroup
}

func (c *ClusterServiceClient) ClusterNodeGroupsIterator(ctx context.Context, req *k8s.ListClusterNodeGroupsRequest, opts ...grpc.CallOption) *ClusterNodeGroupsIterator {
	var pageSize int64
	const defaultPageSize = 1000
	pageSize = req.PageSize
	if pageSize == 0 {
		pageSize = defaultPageSize
	}
	return &ClusterNodeGroupsIterator{
		ctx:      ctx,
		opts:     opts,
		client:   c,
		request:  req,
		pageSize: pageSize,
	}
}

func (it *ClusterNodeGroupsIterator) Next() bool {
	if it.err != nil {
		return false
	}
	if len(it.items) > 1 {
		it.items[0] = nil
		it.items = it.items[1:]
		return true
	}
	it.items = nil // consume last item, if any

	if it.started && it.request.PageToken == "" {
		return false
	}
	it.started = true

	if it.requestedSize == 0 || it.requestedSize > it.pageSize {
		it.request.PageSize = it.pageSize
	} else {
		it.request.PageSize = it.requestedSize
	}

	response, err := it.client.ListNodeGroups(it.ctx, it.request, it.opts...)
	it.err = err
	if err != nil {
		return false
	}

	it.items = response.NodeGroups
	it.request.PageToken = response.NextPageToken
	return len(it.items) > 0
}

func (it *ClusterNodeGroupsIterator) Take(size int64) ([]*k8s.NodeGroup, error) {
	if it.err != nil {
		return nil, it.err
	}

	if size == 0 {
		size = 1 << 32 // something insanely large
	}
	it.requestedSize = size
	defer func() {
		// reset iterator for future calls.
		it.requestedSize = 0
	}()

	var result []*k8s.NodeGroup

	for it.requestedSize > 0 && it.Next() {
		it.requestedSize--
		result = append(result, it.Value())
	}

	if it.err != nil {
		return nil, it.err
	}

	return result, nil
}

func (it *ClusterNodeGroupsIterator) TakeAll() ([]*k8s.NodeGroup, error) {
	return it.Take(0)
}

func (it *ClusterNodeGroupsIterator) Value() *k8s.NodeGroup {
	if len(it.items) == 0 {
		panic("calling Value on empty iterator")
	}
	return it.items[0]
}

func (it *ClusterNodeGroupsIterator) Error() error {
	return it.err
}

// ListNodes implements k8s.ClusterServiceClient
func (c *ClusterServiceClient) ListNodes(ctx context.Context, in *k8s.ListClusterNodesRequest, opts ...grpc.CallOption) (*k8s.ListClusterNodesResponse, error) {
	conn, err := c.getConn(ctx)
	if err != nil {
		return nil, err
	}
	return k8s.NewClusterServiceClient(conn).ListNodes(ctx, in, opts...)
}

type ClusterNodesIterator struct {
	ctx  context.Context
	opts []grpc.CallOption

	err           error
	started       bool
	requestedSize int64
	pageSize      int64

	client  *ClusterServiceClient
	request *k8s.ListClusterNodesRequest

	items []*k8s.Node
}

func (c *ClusterServiceClient) ClusterNodesIterator(ctx context.Context, req *k8s.ListClusterNodesRequest, opts ...grpc.CallOption) *ClusterNodesIterator {
	var pageSize int64
	const defaultPageSize = 1000
	pageSize = req.PageSize
	if pageSize == 0 {
		pageSize = defaultPageSize
	}
	return &ClusterNodesIterator{
		ctx:      ctx,
		opts:     opts,
		client:   c,
		request:  req,
		pageSize: pageSize,
	}
}

func (it *ClusterNodesIterator) Next() bool {
	if it.err != nil {
		return false
	}
	if len(it.items) > 1 {
		it.items[0] = nil
		it.items = it.items[1:]
		return true
	}
	it.items = nil // consume last item, if any

	if it.started && it.request.PageToken == "" {
		return false
	}
	it.started = true

	if it.requestedSize == 0 || it.requestedSize > it.pageSize {
		it.request.PageSize = it.pageSize
	} else {
		it.request.PageSize = it.requestedSize
	}

	response, err := it.client.ListNodes(it.ctx, it.request, it.opts...)
	it.err = err
	if err != nil {
		return false
	}

	it.items = response.Nodes
	it.request.PageToken = response.NextPageToken
	return len(it.items) > 0
}

func (it *ClusterNodesIterator) Take(size int64) ([]*k8s.Node, error) {
	if it.err != nil {
		return nil, it.err
	}

	if size == 0 {
		size = 1 << 32 // something insanely large
	}
	it.requestedSize = size
	defer func() {
		// reset iterator for future calls.
		it.requestedSize = 0
	}()

	var result []*k8s.Node

	for it.requestedSize > 0 && it.Next() {
		it.requestedSize--
		result = append(result, it.Value())
	}

	if it.err != nil {
		return nil, it.err
	}

	return result, nil
}

func (it *ClusterNodesIterator) TakeAll() ([]*k8s.Node, error) {
	return it.Take(0)
}

func (it *ClusterNodesIterator) Value() *k8s.Node {
	if len(it.items) == 0 {
		panic("calling Value on empty iterator")
	}
	return it.items[0]
}

func (it *ClusterNodesIterator) Error() error {
	return it.err
}

// ListOperations implements k8s.ClusterServiceClient
func (c *ClusterServiceClient) ListOperations(ctx context.Context, in *k8s.ListClusterOperationsRequest, opts ...grpc.CallOption) (*k8s.ListClusterOperationsResponse, error) {
	conn, err := c.getConn(ctx)
	if err != nil {
		return nil, err
	}
	return k8s.NewClusterServiceClient(conn).ListOperations(ctx, in, opts...)
}

type ClusterOperationsIterator struct {
	ctx  context.Context
	opts []grpc.CallOption

	err           error
	started       bool
	requestedSize int64
	pageSize      int64

	client  *ClusterServiceClient
	request *k8s.ListClusterOperationsRequest

	items []*operation.Operation
}

func (c *ClusterServiceClient) ClusterOperationsIterator(ctx context.Context, req *k8s.ListClusterOperationsRequest, opts ...grpc.CallOption) *ClusterOperationsIterator {
	var pageSize int64
	const defaultPageSize = 1000
	pageSize = req.PageSize
	if pageSize == 0 {
		pageSize = defaultPageSize
	}
	return &ClusterOperationsIterator{
		ctx:      ctx,
		opts:     opts,
		client:   c,
		request:  req,
		pageSize: pageSize,
	}
}

func (it *ClusterOperationsIterator) Next() bool {
	if it.err != nil {
		return false
	}
	if len(it.items) > 1 {
		it.items[0] = nil
		it.items = it.items[1:]
		return true
	}
	it.items = nil // consume last item, if any

	if it.started && it.request.PageToken == "" {
		return false
	}
	it.started = true

	if it.requestedSize == 0 || it.requestedSize > it.pageSize {
		it.request.PageSize = it.pageSize
	} else {
		it.request.PageSize = it.requestedSize
	}

	response, err := it.client.ListOperations(it.ctx, it.request, it.opts...)
	it.err = err
	if err != nil {
		return false
	}

	it.items = response.Operations
	it.request.PageToken = response.NextPageToken
	return len(it.items) > 0
}

func (it *ClusterOperationsIterator) Take(size int64) ([]*operation.Operation, error) {
	if it.err != nil {
		return nil, it.err
	}

	if size == 0 {
		size = 1 << 32 // something insanely large
	}
	it.requestedSize = size
	defer func() {
		// reset iterator for future calls.
		it.requestedSize = 0
	}()

	var result []*operation.Operation

	for it.requestedSize > 0 && it.Next() {
		it.requestedSize--
		result = append(result, it.Value())
	}

	if it.err != nil {
		return nil, it.err
	}

	return result, nil
}

func (it *ClusterOperationsIterator) TakeAll() ([]*operation.Operation, error) {
	return it.Take(0)
}

func (it *ClusterOperationsIterator) Value() *operation.Operation {
	if len(it.items) == 0 {
		panic("calling Value on empty iterator")
	}
	return it.items[0]
}

func (it *ClusterOperationsIterator) Error() error {
	return it.err
}

// Start implements k8s.ClusterServiceClient
func (c *ClusterServiceClient) Start(ctx context.Context, in *k8s.StartClusterRequest, opts ...grpc.CallOption) (*operation.Operation, error) {
	conn, err := c.getConn(ctx)
	if err != nil {
		return nil, err
	}
	return k8s.NewClusterServiceClient(conn).Start(ctx, in, opts...)
}

// Stop implements k8s.ClusterServiceClient
func (c *ClusterServiceClient) Stop(ctx context.Context, in *k8s.StopClusterRequest, opts ...grpc.CallOption) (*operation.Operation, error) {
	conn, err := c.getConn(ctx)
	if err != nil {
		return nil, err
	}
	return k8s.NewClusterServiceClient(conn).Stop(ctx, in, opts...)
}

// Update implements k8s.ClusterServiceClient
func (c *ClusterServiceClient) Update(ctx context.Context, in *k8s.UpdateClusterRequest, opts ...grpc.CallOption) (*operation.Operation, error) {
	conn, err := c.getConn(ctx)
	if err != nil {
		return nil, err
	}
	return k8s.NewClusterServiceClient(conn).Update(ctx, in, opts...)
}
