// 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 compute

import (
	"bytes"
	"context"
	"fmt"
	"log/slog"
	"net/http"
	"net/url"
	"time"

	computepb "cloud.google.com/go/compute/apiv1beta/computepb"
	gax "github.com/googleapis/gax-go/v2"
	"google.golang.org/api/option"
	"google.golang.org/api/option/internaloption"
	httptransport "google.golang.org/api/transport/http"
	"google.golang.org/grpc"
	"google.golang.org/protobuf/encoding/protojson"
)

var newAdviceClientHook clientHook

// AdviceCallOptions contains the retry settings for each method of AdviceClient.
type AdviceCallOptions struct {
	CalendarMode []gax.CallOption
}

func defaultAdviceRESTCallOptions() *AdviceCallOptions {
	return &AdviceCallOptions{
		CalendarMode: []gax.CallOption{
			gax.WithTimeout(600000 * time.Millisecond),
		},
	}
}

// internalAdviceClient is an interface that defines the methods available from Google Compute Engine API.
type internalAdviceClient interface {
	Close() error
	setGoogleClientInfo(...string)
	Connection() *grpc.ClientConn
	CalendarMode(context.Context, *computepb.CalendarModeAdviceRpcRequest, ...gax.CallOption) (*computepb.CalendarModeAdviceResponse, error)
}

// AdviceClient is a client for interacting with Google Compute Engine API.
// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
//
// The Advice API.
type AdviceClient struct {
	// The internal transport-dependent client.
	internalClient internalAdviceClient

	// The call options for this service.
	CallOptions *AdviceCallOptions
}

// Wrapper methods routed to the internal client.

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

// Connection returns a connection to the API service.
//
// Deprecated: Connections are now pooled so this method does not always
// return the same resource.
func (c *AdviceClient) Connection() *grpc.ClientConn {
	return c.internalClient.Connection()
}

// CalendarMode advise how, where and when to create the requested amount of instances
// with specified accelerators, within the specified time and location limits.
// The method recommends creating future reservations for the requested
// resources.
func (c *AdviceClient) CalendarMode(ctx context.Context, req *computepb.CalendarModeAdviceRpcRequest, opts ...gax.CallOption) (*computepb.CalendarModeAdviceResponse, error) {
	return c.internalClient.CalendarMode(ctx, req, opts...)
}

// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
type adviceRESTClient struct {
	// The http endpoint to connect to.
	endpoint string

	// The http client.
	httpClient *http.Client

	// The x-goog-* headers to be sent with each request.
	xGoogHeaders []string

	// Points back to the CallOptions field of the containing AdviceClient
	CallOptions **AdviceCallOptions

	logger *slog.Logger
}

// NewAdviceRESTClient creates a new advice rest client.
//
// The Advice API.
func NewAdviceRESTClient(ctx context.Context, opts ...option.ClientOption) (*AdviceClient, error) {
	clientOpts := append(defaultAdviceRESTClientOptions(), opts...)
	httpClient, endpoint, err := httptransport.NewClient(ctx, clientOpts...)
	if err != nil {
		return nil, err
	}

	callOpts := defaultAdviceRESTCallOptions()
	c := &adviceRESTClient{
		endpoint:    endpoint,
		httpClient:  httpClient,
		CallOptions: &callOpts,
		logger:      internaloption.GetLogger(opts),
	}
	c.setGoogleClientInfo()

	return &AdviceClient{internalClient: c, CallOptions: callOpts}, nil
}

func defaultAdviceRESTClientOptions() []option.ClientOption {
	return []option.ClientOption{
		internaloption.WithDefaultEndpoint("https://compute.googleapis.com"),
		internaloption.WithDefaultEndpointTemplate("https://compute.UNIVERSE_DOMAIN"),
		internaloption.WithDefaultMTLSEndpoint("https://compute.mtls.googleapis.com"),
		internaloption.WithDefaultUniverseDomain("googleapis.com"),
		internaloption.WithDefaultAudience("https://compute.googleapis.com/"),
		internaloption.WithDefaultScopes(DefaultAuthScopes()...),
		internaloption.EnableNewAuthLibrary(),
	}
}

// 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 *adviceRESTClient) setGoogleClientInfo(keyval ...string) {
	kv := append([]string{"gl-go", gax.GoVersion}, keyval...)
	kv = append(kv, "gapic", getVersionClient(), "gax", gax.Version, "rest", "UNKNOWN", "pb", protoVersion)
	c.xGoogHeaders = []string{
		"x-goog-api-client", gax.XGoogHeader(kv...),
	}
}

// Close closes the connection to the API service. The user should invoke this when
// the client is no longer required.
func (c *adviceRESTClient) Close() error {
	// Replace httpClient with nil to force cleanup.
	c.httpClient = nil
	return nil
}

// Connection returns a connection to the API service.
//
// Deprecated: This method always returns nil.
func (c *adviceRESTClient) Connection() *grpc.ClientConn {
	return nil
}

// CalendarMode advise how, where and when to create the requested amount of instances
// with specified accelerators, within the specified time and location limits.
// The method recommends creating future reservations for the requested
// resources.
func (c *adviceRESTClient) CalendarMode(ctx context.Context, req *computepb.CalendarModeAdviceRpcRequest, opts ...gax.CallOption) (*computepb.CalendarModeAdviceResponse, error) {
	m := protojson.MarshalOptions{AllowPartial: true}
	body := req.GetCalendarModeAdviceRequestResource()
	jsonReq, err := m.Marshal(body)
	if err != nil {
		return nil, err
	}

	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/compute/beta/projects/%v/regions/%v/advice/calendarMode", req.GetProject(), req.GetRegion())

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v&%s=%v", "project", url.QueryEscape(req.GetProject()), "region", url.QueryEscape(req.GetRegion()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	opts = append((*c.CallOptions).CalendarMode[0:len((*c.CallOptions).CalendarMode):len((*c.CallOptions).CalendarMode)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &computepb.CalendarModeAdviceResponse{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("POST", baseUrl.String(), bytes.NewReader(jsonReq))
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		buf, err := executeHTTPRequest(ctx, c.httpClient, httpReq, c.logger, jsonReq, "CalendarMode")
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return err
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	return resp, nil
}
