// Copyright 2025 Google LLC.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Code generated file. DO NOT EDIT.

// Package travelimpactmodel provides access to the Travel Impact Model API.
//
// For product documentation, see: https://developers.google.com/travel/impact-model
//
// # Library status
//
// These client libraries are officially supported by Google. However, this
// library is considered complete and is in maintenance mode. This means
// that we will address critical bugs and security issues but will not add
// any new features.
//
// When possible, we recommend using our newer
// [Cloud Client Libraries for Go](https://pkg.go.dev/cloud.google.com/go)
// that are still actively being worked and iterated on.
//
// # Creating a client
//
// Usage example:
//
//	import "google.golang.org/api/travelimpactmodel/v1"
//	...
//	ctx := context.Background()
//	travelimpactmodelService, err := travelimpactmodel.NewService(ctx)
//
// In this example, Google Application Default Credentials are used for
// authentication. For information on how to create and obtain Application
// Default Credentials, see https://developers.google.com/identity/protocols/application-default-credentials.
//
// # Other authentication options
//
// To use an API key for authentication (note: some APIs do not support API
// keys), use [google.golang.org/api/option.WithAPIKey]:
//
//	travelimpactmodelService, err := travelimpactmodel.NewService(ctx, option.WithAPIKey("AIza..."))
//
// To use an OAuth token (e.g., a user token obtained via a three-legged OAuth
// flow, use [google.golang.org/api/option.WithTokenSource]:
//
//	config := &oauth2.Config{...}
//	// ...
//	token, err := config.Exchange(ctx, ...)
//	travelimpactmodelService, err := travelimpactmodel.NewService(ctx, option.WithTokenSource(config.TokenSource(ctx, token)))
//
// See [google.golang.org/api/option.ClientOption] for details on options.
package travelimpactmodel // import "google.golang.org/api/travelimpactmodel/v1"

import (
	"bytes"
	"context"
	"encoding/json"
	"errors"
	"fmt"
	"io"
	"log/slog"
	"net/http"
	"net/url"
	"strconv"
	"strings"

	"github.com/googleapis/gax-go/v2/internallog"
	googleapi "google.golang.org/api/googleapi"
	internal "google.golang.org/api/internal"
	gensupport "google.golang.org/api/internal/gensupport"
	option "google.golang.org/api/option"
	internaloption "google.golang.org/api/option/internaloption"
	htransport "google.golang.org/api/transport/http"
)

// Always reference these packages, just in case the auto-generated code
// below doesn't.
var _ = bytes.NewBuffer
var _ = strconv.Itoa
var _ = fmt.Sprintf
var _ = json.NewDecoder
var _ = io.Copy
var _ = url.Parse
var _ = gensupport.MarshalJSON
var _ = googleapi.Version
var _ = errors.New
var _ = strings.Replace
var _ = context.Canceled
var _ = internaloption.WithDefaultEndpoint
var _ = internal.Version
var _ = internallog.New

const apiId = "travelimpactmodel:v1"
const apiName = "travelimpactmodel"
const apiVersion = "v1"
const basePath = "https://travelimpactmodel.googleapis.com/"
const basePathTemplate = "https://travelimpactmodel.UNIVERSE_DOMAIN/"
const mtlsBasePath = "https://travelimpactmodel.mtls.googleapis.com/"

// NewService creates a new Service.
func NewService(ctx context.Context, opts ...option.ClientOption) (*Service, error) {
	opts = append(opts, internaloption.WithDefaultEndpoint(basePath))
	opts = append(opts, internaloption.WithDefaultEndpointTemplate(basePathTemplate))
	opts = append(opts, internaloption.WithDefaultMTLSEndpoint(mtlsBasePath))
	opts = append(opts, internaloption.EnableNewAuthLibrary())
	client, endpoint, err := htransport.NewClient(ctx, opts...)
	if err != nil {
		return nil, err
	}
	s := &Service{client: client, BasePath: basePath, logger: internaloption.GetLogger(opts)}
	s.Flights = NewFlightsService(s)
	if endpoint != "" {
		s.BasePath = endpoint
	}
	return s, nil
}

// New creates a new Service. It uses the provided http.Client for requests.
//
// Deprecated: please use NewService instead.
// To provide a custom HTTP client, use option.WithHTTPClient.
// If you are using google.golang.org/api/googleapis/transport.APIKey, use option.WithAPIKey with NewService instead.
func New(client *http.Client) (*Service, error) {
	if client == nil {
		return nil, errors.New("client is nil")
	}
	return NewService(context.TODO(), option.WithHTTPClient(client))
}

type Service struct {
	client    *http.Client
	logger    *slog.Logger
	BasePath  string // API endpoint base URL
	UserAgent string // optional additional User-Agent fragment

	Flights *FlightsService
}

func (s *Service) userAgent() string {
	if s.UserAgent == "" {
		return googleapi.UserAgent
	}
	return googleapi.UserAgent + " " + s.UserAgent
}

func NewFlightsService(s *Service) *FlightsService {
	rs := &FlightsService{s: s}
	return rs
}

type FlightsService struct {
	s *Service
}

// ComputeFlightEmissionsRequest: Input definition for the
// ComputeFlightEmissions request.
type ComputeFlightEmissionsRequest struct {
	// Flights: Required. Direct flights to return emission estimates for.
	Flights []*Flight `json:"flights,omitempty"`
	// ForceSendFields is a list of field names (e.g. "Flights") to unconditionally
	// include in API requests. By default, fields with empty or default values are
	// omitted from API requests. See
	// https://pkg.go.dev/google.golang.org/api#hdr-ForceSendFields for more
	// details.
	ForceSendFields []string `json:"-"`
	// NullFields is a list of field names (e.g. "Flights") to include in API
	// requests with the JSON null value. By default, fields with empty values are
	// omitted from API requests. See
	// https://pkg.go.dev/google.golang.org/api#hdr-NullFields for more details.
	NullFields []string `json:"-"`
}

func (s ComputeFlightEmissionsRequest) MarshalJSON() ([]byte, error) {
	type NoMethod ComputeFlightEmissionsRequest
	return gensupport.MarshalJSON(NoMethod(s), s.ForceSendFields, s.NullFields)
}

// ComputeFlightEmissionsResponse: Output definition for the
// ComputeFlightEmissions response.
type ComputeFlightEmissionsResponse struct {
	// FlightEmissions: List of flight legs with emission estimates.
	FlightEmissions []*FlightWithEmissions `json:"flightEmissions,omitempty"`
	// ModelVersion: The model version under which emission estimates for all
	// flights in this response were computed.
	ModelVersion *ModelVersion `json:"modelVersion,omitempty"`

	// ServerResponse contains the HTTP response code and headers from the server.
	googleapi.ServerResponse `json:"-"`
	// ForceSendFields is a list of field names (e.g. "FlightEmissions") to
	// unconditionally include in API requests. By default, fields with empty or
	// default values are omitted from API requests. See
	// https://pkg.go.dev/google.golang.org/api#hdr-ForceSendFields for more
	// details.
	ForceSendFields []string `json:"-"`
	// NullFields is a list of field names (e.g. "FlightEmissions") to include in
	// API requests with the JSON null value. By default, fields with empty values
	// are omitted from API requests. See
	// https://pkg.go.dev/google.golang.org/api#hdr-NullFields for more details.
	NullFields []string `json:"-"`
}

func (s ComputeFlightEmissionsResponse) MarshalJSON() ([]byte, error) {
	type NoMethod ComputeFlightEmissionsResponse
	return gensupport.MarshalJSON(NoMethod(s), s.ForceSendFields, s.NullFields)
}

// Date: Represents a whole or partial calendar date, such as a birthday. The
// time of day and time zone are either specified elsewhere or are
// insignificant. The date is relative to the Gregorian Calendar. This can
// represent one of the following: * A full date, with non-zero year, month,
// and day values. * A month and day, with a zero year (for example, an
// anniversary). * A year on its own, with a zero month and a zero day. * A
// year and month, with a zero day (for example, a credit card expiration
// date). Related types: * google.type.TimeOfDay * google.type.DateTime *
// google.protobuf.Timestamp
type Date struct {
	// Day: Day of a month. Must be from 1 to 31 and valid for the year and month,
	// or 0 to specify a year by itself or a year and month where the day isn't
	// significant.
	Day int64 `json:"day,omitempty"`
	// Month: Month of a year. Must be from 1 to 12, or 0 to specify a year without
	// a month and day.
	Month int64 `json:"month,omitempty"`
	// Year: Year of the date. Must be from 1 to 9999, or 0 to specify a date
	// without a year.
	Year int64 `json:"year,omitempty"`
	// ForceSendFields is a list of field names (e.g. "Day") to unconditionally
	// include in API requests. By default, fields with empty or default values are
	// omitted from API requests. See
	// https://pkg.go.dev/google.golang.org/api#hdr-ForceSendFields for more
	// details.
	ForceSendFields []string `json:"-"`
	// NullFields is a list of field names (e.g. "Day") to include in API requests
	// with the JSON null value. By default, fields with empty values are omitted
	// from API requests. See
	// https://pkg.go.dev/google.golang.org/api#hdr-NullFields for more details.
	NullFields []string `json:"-"`
}

func (s Date) MarshalJSON() ([]byte, error) {
	type NoMethod Date
	return gensupport.MarshalJSON(NoMethod(s), s.ForceSendFields, s.NullFields)
}

// EmissionsGramsPerPax: Grouped emissions per seating class results.
type EmissionsGramsPerPax struct {
	// Business: Emissions for one passenger in business class in grams. This field
	// is always computed and populated, regardless of whether the aircraft has
	// business class seats or not.
	Business int64 `json:"business,omitempty"`
	// Economy: Emissions for one passenger in economy class in grams. This field
	// is always computed and populated, regardless of whether the aircraft has
	// economy class seats or not.
	Economy int64 `json:"economy,omitempty"`
	// First: Emissions for one passenger in first class in grams. This field is
	// always computed and populated, regardless of whether the aircraft has first
	// class seats or not.
	First int64 `json:"first,omitempty"`
	// PremiumEconomy: Emissions for one passenger in premium economy class in
	// grams. This field is always computed and populated, regardless of whether
	// the aircraft has premium economy class seats or not.
	PremiumEconomy int64 `json:"premiumEconomy,omitempty"`
	// ForceSendFields is a list of field names (e.g. "Business") to
	// unconditionally include in API requests. By default, fields with empty or
	// default values are omitted from API requests. See
	// https://pkg.go.dev/google.golang.org/api#hdr-ForceSendFields for more
	// details.
	ForceSendFields []string `json:"-"`
	// NullFields is a list of field names (e.g. "Business") to include in API
	// requests with the JSON null value. By default, fields with empty values are
	// omitted from API requests. See
	// https://pkg.go.dev/google.golang.org/api#hdr-NullFields for more details.
	NullFields []string `json:"-"`
}

func (s EmissionsGramsPerPax) MarshalJSON() ([]byte, error) {
	type NoMethod EmissionsGramsPerPax
	return gensupport.MarshalJSON(NoMethod(s), s.ForceSendFields, s.NullFields)
}

// Flight: All details related to a single request item for a direct flight
// emission estimates.
type Flight struct {
	// DepartureDate: Required. Date of the flight in the time zone of the origin
	// airport. Must be a date in the present or future.
	DepartureDate *Date `json:"departureDate,omitempty"`
	// Destination: Required. IATA airport code for flight destination, e.g. "JFK".
	Destination string `json:"destination,omitempty"`
	// FlightNumber: Required. Flight number, e.g. 324.
	FlightNumber int64 `json:"flightNumber,omitempty"`
	// OperatingCarrierCode: Required. IATA carrier code, e.g. "AA".
	OperatingCarrierCode string `json:"operatingCarrierCode,omitempty"`
	// Origin: Required. IATA airport code for flight origin, e.g. "LHR".
	Origin string `json:"origin,omitempty"`
	// ForceSendFields is a list of field names (e.g. "DepartureDate") to
	// unconditionally include in API requests. By default, fields with empty or
	// default values are omitted from API requests. See
	// https://pkg.go.dev/google.golang.org/api#hdr-ForceSendFields for more
	// details.
	ForceSendFields []string `json:"-"`
	// NullFields is a list of field names (e.g. "DepartureDate") to include in API
	// requests with the JSON null value. By default, fields with empty values are
	// omitted from API requests. See
	// https://pkg.go.dev/google.golang.org/api#hdr-NullFields for more details.
	NullFields []string `json:"-"`
}

func (s Flight) MarshalJSON() ([]byte, error) {
	type NoMethod Flight
	return gensupport.MarshalJSON(NoMethod(s), s.ForceSendFields, s.NullFields)
}

// FlightWithEmissions: Direct flight with emission estimates.
type FlightWithEmissions struct {
	// EmissionsGramsPerPax: Optional. Per-passenger emission estimate numbers.
	// Will not be present if emissions could not be computed. For the list of
	// reasons why emissions could not be computed, see ComputeFlightEmissions.
	// This field uses wtw emissions aka ttw_emissions_grams_per_pax +
	// wtt_emissions_grams_per_pax.
	EmissionsGramsPerPax *EmissionsGramsPerPax `json:"emissionsGramsPerPax,omitempty"`
	// Flight: Required. Matches the flight identifiers in the request. Note: all
	// IATA codes are capitalized.
	Flight *Flight `json:"flight,omitempty"`
	// ForceSendFields is a list of field names (e.g. "EmissionsGramsPerPax") to
	// unconditionally include in API requests. By default, fields with empty or
	// default values are omitted from API requests. See
	// https://pkg.go.dev/google.golang.org/api#hdr-ForceSendFields for more
	// details.
	ForceSendFields []string `json:"-"`
	// NullFields is a list of field names (e.g. "EmissionsGramsPerPax") to include
	// in API requests with the JSON null value. By default, fields with empty
	// values are omitted from API requests. See
	// https://pkg.go.dev/google.golang.org/api#hdr-NullFields for more details.
	NullFields []string `json:"-"`
}

func (s FlightWithEmissions) MarshalJSON() ([]byte, error) {
	type NoMethod FlightWithEmissions
	return gensupport.MarshalJSON(NoMethod(s), s.ForceSendFields, s.NullFields)
}

// ModelVersion: Travel Impact Model version. For more information about the
// model versioning see
// https://github.com/google/travel-impact-model/#versioning.
type ModelVersion struct {
	// Dated: Dated versions: Model datasets are recreated with refreshed input
	// data but no change to the algorithms regularly.
	Dated string `json:"dated,omitempty"`
	// Major: Major versions: Major changes to methodology (e.g. adding new data
	// sources to the model that lead to major output changes). Such changes will
	// be infrequent and announced well in advance. Might involve API version
	// changes, which will respect guidelines in
	// https://cloud.google.com/endpoints/docs/openapi/versioning-an-api#backwards-incompatible
	Major int64 `json:"major,omitempty"`
	// Minor: Minor versions: Changes to the model that, while being consistent
	// across schema versions, change the model parameters or implementation.
	Minor int64 `json:"minor,omitempty"`
	// Patch: Patch versions: Implementation changes meant to address bugs or
	// inaccuracies in the model implementation.
	Patch int64 `json:"patch,omitempty"`
	// ForceSendFields is a list of field names (e.g. "Dated") to unconditionally
	// include in API requests. By default, fields with empty or default values are
	// omitted from API requests. See
	// https://pkg.go.dev/google.golang.org/api#hdr-ForceSendFields for more
	// details.
	ForceSendFields []string `json:"-"`
	// NullFields is a list of field names (e.g. "Dated") to include in API
	// requests with the JSON null value. By default, fields with empty values are
	// omitted from API requests. See
	// https://pkg.go.dev/google.golang.org/api#hdr-NullFields for more details.
	NullFields []string `json:"-"`
}

func (s ModelVersion) MarshalJSON() ([]byte, error) {
	type NoMethod ModelVersion
	return gensupport.MarshalJSON(NoMethod(s), s.ForceSendFields, s.NullFields)
}

type FlightsComputeFlightEmissionsCall struct {
	s                             *Service
	computeflightemissionsrequest *ComputeFlightEmissionsRequest
	urlParams_                    gensupport.URLParams
	ctx_                          context.Context
	header_                       http.Header
}

// ComputeFlightEmissions: Stateless method to retrieve emission estimates.
// Details on how emission estimates are computed:
// https://github.com/google/travel-impact-model The response will contain all
// entries that match the input flight legs, in the same order. If there are no
// estimates available for a certain flight leg, the response will return the
// flight leg object with empty emission fields. The request will still be
// considered successful. Reasons for missing emission estimates include: * The
// flight is unknown to the server. * The input flight leg is missing one or
// more identifiers. * The flight date is in the past. * The aircraft type is
// not supported by the model. * Missing seat configuration. The request can
// contain up to 1000 flight legs. If the request has more than 1000 direct
// flights, if will fail with an INVALID_ARGUMENT error.
func (r *FlightsService) ComputeFlightEmissions(computeflightemissionsrequest *ComputeFlightEmissionsRequest) *FlightsComputeFlightEmissionsCall {
	c := &FlightsComputeFlightEmissionsCall{s: r.s, urlParams_: make(gensupport.URLParams)}
	c.computeflightemissionsrequest = computeflightemissionsrequest
	return c
}

// Fields allows partial responses to be retrieved. See
// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse for more
// details.
func (c *FlightsComputeFlightEmissionsCall) Fields(s ...googleapi.Field) *FlightsComputeFlightEmissionsCall {
	c.urlParams_.Set("fields", googleapi.CombineFields(s))
	return c
}

// Context sets the context to be used in this call's Do method.
func (c *FlightsComputeFlightEmissionsCall) Context(ctx context.Context) *FlightsComputeFlightEmissionsCall {
	c.ctx_ = ctx
	return c
}

// Header returns a http.Header that can be modified by the caller to add
// headers to the request.
func (c *FlightsComputeFlightEmissionsCall) Header() http.Header {
	if c.header_ == nil {
		c.header_ = make(http.Header)
	}
	return c.header_
}

func (c *FlightsComputeFlightEmissionsCall) doRequest(alt string) (*http.Response, error) {
	reqHeaders := gensupport.SetHeaders(c.s.userAgent(), "application/json", c.header_)
	body, err := googleapi.WithoutDataWrapper.JSONBuffer(c.computeflightemissionsrequest)
	if err != nil {
		return nil, err
	}
	c.urlParams_.Set("alt", alt)
	c.urlParams_.Set("prettyPrint", "false")
	urls := googleapi.ResolveRelative(c.s.BasePath, "v1/flights:computeFlightEmissions")
	urls += "?" + c.urlParams_.Encode()
	req, err := http.NewRequest("POST", urls, body)
	if err != nil {
		return nil, err
	}
	req.Header = reqHeaders
	c.s.logger.DebugContext(c.ctx_, "api request", "serviceName", apiName, "rpcName", "travelimpactmodel.flights.computeFlightEmissions", "request", internallog.HTTPRequest(req, body.Bytes()))
	return gensupport.SendRequest(c.ctx_, c.s.client, req)
}

// Do executes the "travelimpactmodel.flights.computeFlightEmissions" call.
// Any non-2xx status code is an error. Response headers are in either
// *ComputeFlightEmissionsResponse.ServerResponse.Header or (if a response was
// returned at all) in error.(*googleapi.Error).Header. Use
// googleapi.IsNotModified to check whether the returned error was because
// http.StatusNotModified was returned.
func (c *FlightsComputeFlightEmissionsCall) Do(opts ...googleapi.CallOption) (*ComputeFlightEmissionsResponse, error) {
	gensupport.SetOptions(c.urlParams_, opts...)
	res, err := c.doRequest("json")
	if res != nil && res.StatusCode == http.StatusNotModified {
		if res.Body != nil {
			res.Body.Close()
		}
		return nil, gensupport.WrapError(&googleapi.Error{
			Code:   res.StatusCode,
			Header: res.Header,
		})
	}
	if err != nil {
		return nil, err
	}
	defer googleapi.CloseBody(res)
	if err := googleapi.CheckResponse(res); err != nil {
		return nil, gensupport.WrapError(err)
	}
	ret := &ComputeFlightEmissionsResponse{
		ServerResponse: googleapi.ServerResponse{
			Header:         res.Header,
			HTTPStatusCode: res.StatusCode,
		},
	}
	target := &ret
	b, err := gensupport.DecodeResponseBytes(target, res)
	if err != nil {
		return nil, err
	}
	c.s.logger.DebugContext(c.ctx_, "api response", "serviceName", apiName, "rpcName", "travelimpactmodel.flights.computeFlightEmissions", "response", internallog.HTTPResponse(res, b))
	return ret, nil
}
