// Copyright 2018 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 containeranalysis

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"
	containeranalysispb "google.golang.org/genproto/googleapis/devtools/containeranalysis/v1beta1"
	iampb "google.golang.org/genproto/googleapis/iam/v1"
	"google.golang.org/grpc"
	"google.golang.org/grpc/codes"
	"google.golang.org/grpc/metadata"
)

// ContainerAnalysisV1Beta1CallOptions contains the retry settings for each method of ContainerAnalysisV1Beta1Client.
type ContainerAnalysisV1Beta1CallOptions struct {
	SetIamPolicy       []gax.CallOption
	GetIamPolicy       []gax.CallOption
	TestIamPermissions []gax.CallOption
	GetScanConfig      []gax.CallOption
	ListScanConfigs    []gax.CallOption
	UpdateScanConfig   []gax.CallOption
}

func defaultContainerAnalysisV1Beta1ClientOptions() []option.ClientOption {
	return []option.ClientOption{
		option.WithEndpoint("containeranalysis.googleapis.com:443"),
		option.WithScopes(DefaultAuthScopes()...),
	}
}

func defaultContainerAnalysisV1Beta1CallOptions() *ContainerAnalysisV1Beta1CallOptions {
	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 &ContainerAnalysisV1Beta1CallOptions{
		SetIamPolicy:       retry[[2]string{"default", "non_idempotent"}],
		GetIamPolicy:       retry[[2]string{"default", "non_idempotent"}],
		TestIamPermissions: retry[[2]string{"default", "non_idempotent"}],
		GetScanConfig:      retry[[2]string{"default", "idempotent"}],
		ListScanConfigs:    retry[[2]string{"default", "idempotent"}],
		UpdateScanConfig:   retry[[2]string{"default", "non_idempotent"}],
	}
}

// ContainerAnalysisV1Beta1Client is a client for interacting with Container Analysis API.
//
// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
type ContainerAnalysisV1Beta1Client struct {
	// The connection to the service.
	conn *grpc.ClientConn

	// The gRPC API client.
	containerAnalysisV1Beta1Client containeranalysispb.ContainerAnalysisV1Beta1Client

	// The call options for this service.
	CallOptions *ContainerAnalysisV1Beta1CallOptions

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

// NewContainerAnalysisV1Beta1Client creates a new container analysis v1 beta1 client.
//
// Retrieves analysis results of Cloud components such as Docker container
// images. The Container Analysis API is an implementation of the
// Grafeas (at grafeas.io) API.
//
// Analysis results are stored as a series of occurrences. An Occurrence
// contains information about a specific analysis instance on a resource. An
// occurrence refers to a Note. A note contains details describing the
// analysis and is generally stored in a separate project, called a Provider.
// Multiple occurrences can refer to the same note.
//
// For example, an SSL vulnerability could affect multiple images. In this case,
// there would be one note for the vulnerability and an occurrence for each
// image with the vulnerability referring to that note.
func NewContainerAnalysisV1Beta1Client(ctx context.Context, opts ...option.ClientOption) (*ContainerAnalysisV1Beta1Client, error) {
	conn, err := transport.DialGRPC(ctx, append(defaultContainerAnalysisV1Beta1ClientOptions(), opts...)...)
	if err != nil {
		return nil, err
	}
	c := &ContainerAnalysisV1Beta1Client{
		conn:        conn,
		CallOptions: defaultContainerAnalysisV1Beta1CallOptions(),

		containerAnalysisV1Beta1Client: containeranalysispb.NewContainerAnalysisV1Beta1Client(conn),
	}
	c.setGoogleClientInfo()
	return c, nil
}

// Connection returns the client's connection to the API service.
func (c *ContainerAnalysisV1Beta1Client) 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 *ContainerAnalysisV1Beta1Client) 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 *ContainerAnalysisV1Beta1Client) 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...))
}

// SetIamPolicy sets the access control policy on the specified note or occurrence.
// Requires containeranalysis.notes.setIamPolicy or
// containeranalysis.occurrences.setIamPolicy permission if the resource is
// a note or an occurrence, respectively.
//
// The resource takes the format projects/[PROJECT_ID]/notes/[NOTE_ID] for
// notes and projects/[PROJECT_ID]/occurrences/[OCCURRENCE_ID] for
// occurrences.
func (c *ContainerAnalysisV1Beta1Client) SetIamPolicy(ctx context.Context, req *iampb.SetIamPolicyRequest, opts ...gax.CallOption) (*iampb.Policy, error) {
	ctx = insertMetadata(ctx, c.xGoogMetadata)
	opts = append(c.CallOptions.SetIamPolicy[0:len(c.CallOptions.SetIamPolicy):len(c.CallOptions.SetIamPolicy)], opts...)
	var resp *iampb.Policy
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.containerAnalysisV1Beta1Client.SetIamPolicy(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

// GetIamPolicy gets the access control policy for a note or an occurrence resource.
// Requires containeranalysis.notes.setIamPolicy or
// containeranalysis.occurrences.setIamPolicy permission if the resource is
// a note or occurrence, respectively.
//
// The resource takes the format projects/[PROJECT_ID]/notes/[NOTE_ID] for
// notes and projects/[PROJECT_ID]/occurrences/[OCCURRENCE_ID] for
// occurrences.
func (c *ContainerAnalysisV1Beta1Client) GetIamPolicy(ctx context.Context, req *iampb.GetIamPolicyRequest, opts ...gax.CallOption) (*iampb.Policy, error) {
	ctx = insertMetadata(ctx, c.xGoogMetadata)
	opts = append(c.CallOptions.GetIamPolicy[0:len(c.CallOptions.GetIamPolicy):len(c.CallOptions.GetIamPolicy)], opts...)
	var resp *iampb.Policy
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.containerAnalysisV1Beta1Client.GetIamPolicy(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

// TestIamPermissions returns the permissions that a caller has on the specified note or
// occurrence. Requires list permission on the project (for example,
// containeranalysis.notes.list).
//
// The resource takes the format projects/[PROJECT_ID]/notes/[NOTE_ID] for
// notes and projects/[PROJECT_ID]/occurrences/[OCCURRENCE_ID] for
// occurrences.
func (c *ContainerAnalysisV1Beta1Client) TestIamPermissions(ctx context.Context, req *iampb.TestIamPermissionsRequest, opts ...gax.CallOption) (*iampb.TestIamPermissionsResponse, error) {
	ctx = insertMetadata(ctx, c.xGoogMetadata)
	opts = append(c.CallOptions.TestIamPermissions[0:len(c.CallOptions.TestIamPermissions):len(c.CallOptions.TestIamPermissions)], opts...)
	var resp *iampb.TestIamPermissionsResponse
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.containerAnalysisV1Beta1Client.TestIamPermissions(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

// GetScanConfig gets the specified scan configuration.
func (c *ContainerAnalysisV1Beta1Client) GetScanConfig(ctx context.Context, req *containeranalysispb.GetScanConfigRequest, opts ...gax.CallOption) (*containeranalysispb.ScanConfig, error) {
	ctx = insertMetadata(ctx, c.xGoogMetadata)
	opts = append(c.CallOptions.GetScanConfig[0:len(c.CallOptions.GetScanConfig):len(c.CallOptions.GetScanConfig)], opts...)
	var resp *containeranalysispb.ScanConfig
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.containerAnalysisV1Beta1Client.GetScanConfig(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

// ListScanConfigs lists scan configurations for the specified project.
func (c *ContainerAnalysisV1Beta1Client) ListScanConfigs(ctx context.Context, req *containeranalysispb.ListScanConfigsRequest, opts ...gax.CallOption) *ScanConfigIterator {
	ctx = insertMetadata(ctx, c.xGoogMetadata)
	opts = append(c.CallOptions.ListScanConfigs[0:len(c.CallOptions.ListScanConfigs):len(c.CallOptions.ListScanConfigs)], opts...)
	it := &ScanConfigIterator{}
	req = proto.Clone(req).(*containeranalysispb.ListScanConfigsRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*containeranalysispb.ScanConfig, string, error) {
		var resp *containeranalysispb.ListScanConfigsResponse
		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.containerAnalysisV1Beta1Client.ListScanConfigs(ctx, req, settings.GRPC...)
			return err
		}, opts...)
		if err != nil {
			return nil, "", err
		}
		return resp.ScanConfigs, 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
}

// UpdateScanConfig updates the specified scan configuration.
func (c *ContainerAnalysisV1Beta1Client) UpdateScanConfig(ctx context.Context, req *containeranalysispb.UpdateScanConfigRequest, opts ...gax.CallOption) (*containeranalysispb.ScanConfig, error) {
	ctx = insertMetadata(ctx, c.xGoogMetadata)
	opts = append(c.CallOptions.UpdateScanConfig[0:len(c.CallOptions.UpdateScanConfig):len(c.CallOptions.UpdateScanConfig)], opts...)
	var resp *containeranalysispb.ScanConfig
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.containerAnalysisV1Beta1Client.UpdateScanConfig(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

// ScanConfigIterator manages a stream of *containeranalysispb.ScanConfig.
type ScanConfigIterator struct {
	items    []*containeranalysispb.ScanConfig
	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 []*containeranalysispb.ScanConfig, nextPageToken string, err error)
}

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

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

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