// Copyright 2021 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 dataqna

import (
	"context"
	"fmt"
	"math"
	"net/url"
	"time"

	gax "github.com/googleapis/gax-go/v2"
	"google.golang.org/api/option"
	"google.golang.org/api/option/internaloption"
	gtransport "google.golang.org/api/transport/grpc"
	dataqnapb "google.golang.org/genproto/googleapis/cloud/dataqna/v1alpha"
	"google.golang.org/grpc"
	"google.golang.org/grpc/codes"
	"google.golang.org/grpc/metadata"
)

var newQuestionClientHook clientHook

// QuestionCallOptions contains the retry settings for each method of QuestionClient.
type QuestionCallOptions struct {
	GetQuestion        []gax.CallOption
	CreateQuestion     []gax.CallOption
	ExecuteQuestion    []gax.CallOption
	GetUserFeedback    []gax.CallOption
	UpdateUserFeedback []gax.CallOption
}

func defaultQuestionClientOptions() []option.ClientOption {
	return []option.ClientOption{
		internaloption.WithDefaultEndpoint("dataqna.googleapis.com:443"),
		internaloption.WithDefaultMTLSEndpoint("dataqna.mtls.googleapis.com:443"),
		internaloption.WithDefaultAudience("https://dataqna.googleapis.com/"),
		internaloption.WithDefaultScopes(DefaultAuthScopes()...),
		option.WithGRPCDialOption(grpc.WithDisableServiceConfig()),
		option.WithGRPCDialOption(grpc.WithDefaultCallOptions(
			grpc.MaxCallRecvMsgSize(math.MaxInt32))),
	}
}

func defaultQuestionCallOptions() *QuestionCallOptions {
	return &QuestionCallOptions{
		GetQuestion: []gax.CallOption{
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    1000 * time.Millisecond,
					Max:        10000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		CreateQuestion:  []gax.CallOption{},
		ExecuteQuestion: []gax.CallOption{},
		GetUserFeedback: []gax.CallOption{
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    1000 * time.Millisecond,
					Max:        10000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		UpdateUserFeedback: []gax.CallOption{},
	}
}

// QuestionClient is a client for interacting with Data QnA API.
//
// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
type QuestionClient struct {
	// Connection pool of gRPC connections to the service.
	connPool gtransport.ConnPool

	// flag to opt out of default deadlines via GOOGLE_API_GO_EXPERIMENTAL_DISABLE_DEFAULT_DEADLINE
	disableDeadlines bool

	// The gRPC API client.
	questionClient dataqnapb.QuestionServiceClient

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

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

// NewQuestionClient creates a new question service client.
//
// Service to interpret natural language queries.
// The service allows to create Question resources that are interpreted and
// are filled with one or more interpretations if the question could be
// interpreted. Once a Question resource is created and has at least one
// interpretation, an interpretation can be chosen for execution, which
// triggers a query to the backend (for BigQuery, it will create a job).
// Upon successful execution of that interpretation, backend specific
// information will be returned so that the client can retrieve the results
// from the backend.
//
// The Question resources are named projects/*/locations/*/questions/*.
//
// The Question resource has a singletion sub-resource UserFeedback named
// projects/*/locations/*/questions/*/userFeedback, which allows access to
// user feedback.
func NewQuestionClient(ctx context.Context, opts ...option.ClientOption) (*QuestionClient, error) {
	clientOpts := defaultQuestionClientOptions()

	if newQuestionClientHook != nil {
		hookOpts, err := newQuestionClientHook(ctx, clientHookParams{})
		if err != nil {
			return nil, err
		}
		clientOpts = append(clientOpts, hookOpts...)
	}

	disableDeadlines, err := checkDisableDeadlines()
	if err != nil {
		return nil, err
	}

	connPool, err := gtransport.DialPool(ctx, append(clientOpts, opts...)...)
	if err != nil {
		return nil, err
	}
	c := &QuestionClient{
		connPool:         connPool,
		disableDeadlines: disableDeadlines,
		CallOptions:      defaultQuestionCallOptions(),

		questionClient: dataqnapb.NewQuestionServiceClient(connPool),
	}
	c.setGoogleClientInfo()

	return c, nil
}

// Connection returns a connection to the API service.
//
// Deprecated.
func (c *QuestionClient) Connection() *grpc.ClientConn {
	return c.connPool.Conn()
}

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

// GetQuestion gets a previously created question.
func (c *QuestionClient) GetQuestion(ctx context.Context, req *dataqnapb.GetQuestionRequest, opts ...gax.CallOption) (*dataqnapb.Question, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))
	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append(c.CallOptions.GetQuestion[0:len(c.CallOptions.GetQuestion):len(c.CallOptions.GetQuestion)], opts...)
	var resp *dataqnapb.Question
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.questionClient.GetQuestion(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

// CreateQuestion creates a question.
func (c *QuestionClient) CreateQuestion(ctx context.Context, req *dataqnapb.CreateQuestionRequest, opts ...gax.CallOption) (*dataqnapb.Question, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent())))
	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append(c.CallOptions.CreateQuestion[0:len(c.CallOptions.CreateQuestion):len(c.CallOptions.CreateQuestion)], opts...)
	var resp *dataqnapb.Question
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.questionClient.CreateQuestion(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

// ExecuteQuestion executes an interpretation.
func (c *QuestionClient) ExecuteQuestion(ctx context.Context, req *dataqnapb.ExecuteQuestionRequest, opts ...gax.CallOption) (*dataqnapb.Question, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))
	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append(c.CallOptions.ExecuteQuestion[0:len(c.CallOptions.ExecuteQuestion):len(c.CallOptions.ExecuteQuestion)], opts...)
	var resp *dataqnapb.Question
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.questionClient.ExecuteQuestion(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

// GetUserFeedback gets previously created user feedback.
func (c *QuestionClient) GetUserFeedback(ctx context.Context, req *dataqnapb.GetUserFeedbackRequest, opts ...gax.CallOption) (*dataqnapb.UserFeedback, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))
	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append(c.CallOptions.GetUserFeedback[0:len(c.CallOptions.GetUserFeedback):len(c.CallOptions.GetUserFeedback)], opts...)
	var resp *dataqnapb.UserFeedback
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.questionClient.GetUserFeedback(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

// UpdateUserFeedback updates user feedback. This creates user feedback if there was none before
// (upsert).
func (c *QuestionClient) UpdateUserFeedback(ctx context.Context, req *dataqnapb.UpdateUserFeedbackRequest, opts ...gax.CallOption) (*dataqnapb.UserFeedback, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "user_feedback.name", url.QueryEscape(req.GetUserFeedback().GetName())))
	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append(c.CallOptions.UpdateUserFeedback[0:len(c.CallOptions.UpdateUserFeedback):len(c.CallOptions.UpdateUserFeedback)], opts...)
	var resp *dataqnapb.UserFeedback
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.questionClient.UpdateUserFeedback(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}