image.go

// File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.

package openai

import (
	"bytes"
	"context"
	"encoding/json"
	"io"
	"mime/multipart"
	"net/http"
	"slices"

	"github.com/openai/openai-go/v3/internal/apiform"
	"github.com/openai/openai-go/v3/internal/apijson"
	"github.com/openai/openai-go/v3/internal/requestconfig"
	"github.com/openai/openai-go/v3/option"
	"github.com/openai/openai-go/v3/packages/param"
	"github.com/openai/openai-go/v3/packages/respjson"
	"github.com/openai/openai-go/v3/packages/ssestream"
	"github.com/openai/openai-go/v3/shared/constant"
)

// ImageService contains methods and other services that help with interacting with
// the openai API.
//
// Note, unlike clients, this service does not read variables from the environment
// automatically. You should not instantiate this service directly, and instead use
// the [NewImageService] method instead.
type ImageService struct {
	Options []option.RequestOption
}

// NewImageService generates a new service that applies the given options to each
// request. These options are applied after the parent client's options (if there
// is one), and before any request-specific options.
func NewImageService(opts ...option.RequestOption) (r ImageService) {
	r = ImageService{}
	r.Options = opts
	return
}

// Creates a variation of a given image. This endpoint only supports `dall-e-2`.
func (r *ImageService) NewVariation(ctx context.Context, body ImageNewVariationParams, opts ...option.RequestOption) (res *ImagesResponse, err error) {
	opts = slices.Concat(r.Options, opts)
	path := "images/variations"
	err = requestconfig.ExecuteNewRequest(ctx, http.MethodPost, path, body, &res, opts...)
	return
}

// Creates an edited or extended image given one or more source images and a
// prompt. This endpoint supports GPT Image models (`gpt-image-1.5`, `gpt-image-1`,
// and `gpt-image-1-mini`) and `dall-e-2`.
func (r *ImageService) Edit(ctx context.Context, body ImageEditParams, opts ...option.RequestOption) (res *ImagesResponse, err error) {
	opts = slices.Concat(r.Options, opts)
	path := "images/edits"
	err = requestconfig.ExecuteNewRequest(ctx, http.MethodPost, path, body, &res, opts...)
	return
}

// Creates an edited or extended image given one or more source images and a
// prompt. This endpoint supports GPT Image models (`gpt-image-1.5`, `gpt-image-1`,
// and `gpt-image-1-mini`) and `dall-e-2`.
func (r *ImageService) EditStreaming(ctx context.Context, body ImageEditParams, opts ...option.RequestOption) (stream *ssestream.Stream[ImageEditStreamEventUnion]) {
	var (
		raw *http.Response
		err error
	)
	opts = slices.Concat(r.Options, opts)
	body.SetExtraFields(map[string]any{
		"stream": "true",
	})
	path := "images/edits"
	err = requestconfig.ExecuteNewRequest(ctx, http.MethodPost, path, body, &raw, opts...)
	return ssestream.NewStream[ImageEditStreamEventUnion](ssestream.NewDecoder(raw), err)
}

// Creates an image given a prompt.
// [Learn more](https://platform.openai.com/docs/guides/images).
func (r *ImageService) Generate(ctx context.Context, body ImageGenerateParams, opts ...option.RequestOption) (res *ImagesResponse, err error) {
	opts = slices.Concat(r.Options, opts)
	path := "images/generations"
	err = requestconfig.ExecuteNewRequest(ctx, http.MethodPost, path, body, &res, opts...)
	return
}

// Creates an image given a prompt.
// [Learn more](https://platform.openai.com/docs/guides/images).
func (r *ImageService) GenerateStreaming(ctx context.Context, body ImageGenerateParams, opts ...option.RequestOption) (stream *ssestream.Stream[ImageGenStreamEventUnion]) {
	var (
		raw *http.Response
		err error
	)
	opts = slices.Concat(r.Options, opts)
	opts = append([]option.RequestOption{option.WithJSONSet("stream", true)}, opts...)
	path := "images/generations"
	err = requestconfig.ExecuteNewRequest(ctx, http.MethodPost, path, body, &raw, opts...)
	return ssestream.NewStream[ImageGenStreamEventUnion](ssestream.NewDecoder(raw), err)
}

// Represents the content or the URL of an image generated by the OpenAI API.
type Image struct {
	// The base64-encoded JSON of the generated image. Returned by default for the GPT
	// image models, and only present if `response_format` is set to `b64_json` for
	// `dall-e-2` and `dall-e-3`.
	B64JSON string `json:"b64_json"`
	// For `dall-e-3` only, the revised prompt that was used to generate the image.
	RevisedPrompt string `json:"revised_prompt"`
	// When using `dall-e-2` or `dall-e-3`, the URL of the generated image if
	// `response_format` is set to `url` (default value). Unsupported for the GPT image
	// models.
	URL string `json:"url"`
	// JSON contains metadata for fields, check presence with [respjson.Field.Valid].
	JSON struct {
		B64JSON       respjson.Field
		RevisedPrompt respjson.Field
		URL           respjson.Field
		ExtraFields   map[string]respjson.Field
		raw           string
	} `json:"-"`
}

// Returns the unmodified JSON received from the API
func (r Image) RawJSON() string { return r.JSON.raw }
func (r *Image) UnmarshalJSON(data []byte) error {
	return apijson.UnmarshalRoot(data, r)
}

// Emitted when image editing has completed and the final image is available.
type ImageEditCompletedEvent struct {
	// Base64-encoded final edited image data, suitable for rendering as an image.
	B64JSON string `json:"b64_json,required"`
	// The background setting for the edited image.
	//
	// Any of "transparent", "opaque", "auto".
	Background ImageEditCompletedEventBackground `json:"background,required"`
	// The Unix timestamp when the event was created.
	CreatedAt int64 `json:"created_at,required"`
	// The output format for the edited image.
	//
	// Any of "png", "webp", "jpeg".
	OutputFormat ImageEditCompletedEventOutputFormat `json:"output_format,required"`
	// The quality setting for the edited image.
	//
	// Any of "low", "medium", "high", "auto".
	Quality ImageEditCompletedEventQuality `json:"quality,required"`
	// The size of the edited image.
	//
	// Any of "1024x1024", "1024x1536", "1536x1024", "auto".
	Size ImageEditCompletedEventSize `json:"size,required"`
	// The type of the event. Always `image_edit.completed`.
	Type constant.ImageEditCompleted `json:"type,required"`
	// For the GPT image models only, the token usage information for the image
	// generation.
	Usage ImageEditCompletedEventUsage `json:"usage,required"`
	// JSON contains metadata for fields, check presence with [respjson.Field.Valid].
	JSON struct {
		B64JSON      respjson.Field
		Background   respjson.Field
		CreatedAt    respjson.Field
		OutputFormat respjson.Field
		Quality      respjson.Field
		Size         respjson.Field
		Type         respjson.Field
		Usage        respjson.Field
		ExtraFields  map[string]respjson.Field
		raw          string
	} `json:"-"`
}

// Returns the unmodified JSON received from the API
func (r ImageEditCompletedEvent) RawJSON() string { return r.JSON.raw }
func (r *ImageEditCompletedEvent) UnmarshalJSON(data []byte) error {
	return apijson.UnmarshalRoot(data, r)
}

// The background setting for the edited image.
type ImageEditCompletedEventBackground string

const (
	ImageEditCompletedEventBackgroundTransparent ImageEditCompletedEventBackground = "transparent"
	ImageEditCompletedEventBackgroundOpaque      ImageEditCompletedEventBackground = "opaque"
	ImageEditCompletedEventBackgroundAuto        ImageEditCompletedEventBackground = "auto"
)

// The output format for the edited image.
type ImageEditCompletedEventOutputFormat string

const (
	ImageEditCompletedEventOutputFormatPNG  ImageEditCompletedEventOutputFormat = "png"
	ImageEditCompletedEventOutputFormatWebP ImageEditCompletedEventOutputFormat = "webp"
	ImageEditCompletedEventOutputFormatJPEG ImageEditCompletedEventOutputFormat = "jpeg"
)

// The quality setting for the edited image.
type ImageEditCompletedEventQuality string

const (
	ImageEditCompletedEventQualityLow    ImageEditCompletedEventQuality = "low"
	ImageEditCompletedEventQualityMedium ImageEditCompletedEventQuality = "medium"
	ImageEditCompletedEventQualityHigh   ImageEditCompletedEventQuality = "high"
	ImageEditCompletedEventQualityAuto   ImageEditCompletedEventQuality = "auto"
)

// The size of the edited image.
type ImageEditCompletedEventSize string

const (
	ImageEditCompletedEventSize1024x1024 ImageEditCompletedEventSize = "1024x1024"
	ImageEditCompletedEventSize1024x1536 ImageEditCompletedEventSize = "1024x1536"
	ImageEditCompletedEventSize1536x1024 ImageEditCompletedEventSize = "1536x1024"
	ImageEditCompletedEventSizeAuto      ImageEditCompletedEventSize = "auto"
)

// For the GPT image models only, the token usage information for the image
// generation.
type ImageEditCompletedEventUsage struct {
	// The number of tokens (images and text) in the input prompt.
	InputTokens int64 `json:"input_tokens,required"`
	// The input tokens detailed information for the image generation.
	InputTokensDetails ImageEditCompletedEventUsageInputTokensDetails `json:"input_tokens_details,required"`
	// The number of image tokens in the output image.
	OutputTokens int64 `json:"output_tokens,required"`
	// The total number of tokens (images and text) used for the image generation.
	TotalTokens int64 `json:"total_tokens,required"`
	// JSON contains metadata for fields, check presence with [respjson.Field.Valid].
	JSON struct {
		InputTokens        respjson.Field
		InputTokensDetails respjson.Field
		OutputTokens       respjson.Field
		TotalTokens        respjson.Field
		ExtraFields        map[string]respjson.Field
		raw                string
	} `json:"-"`
}

// Returns the unmodified JSON received from the API
func (r ImageEditCompletedEventUsage) RawJSON() string { return r.JSON.raw }
func (r *ImageEditCompletedEventUsage) UnmarshalJSON(data []byte) error {
	return apijson.UnmarshalRoot(data, r)
}

// The input tokens detailed information for the image generation.
type ImageEditCompletedEventUsageInputTokensDetails struct {
	// The number of image tokens in the input prompt.
	ImageTokens int64 `json:"image_tokens,required"`
	// The number of text tokens in the input prompt.
	TextTokens int64 `json:"text_tokens,required"`
	// JSON contains metadata for fields, check presence with [respjson.Field.Valid].
	JSON struct {
		ImageTokens respjson.Field
		TextTokens  respjson.Field
		ExtraFields map[string]respjson.Field
		raw         string
	} `json:"-"`
}

// Returns the unmodified JSON received from the API
func (r ImageEditCompletedEventUsageInputTokensDetails) RawJSON() string { return r.JSON.raw }
func (r *ImageEditCompletedEventUsageInputTokensDetails) UnmarshalJSON(data []byte) error {
	return apijson.UnmarshalRoot(data, r)
}

// Emitted when a partial image is available during image editing streaming.
type ImageEditPartialImageEvent struct {
	// Base64-encoded partial image data, suitable for rendering as an image.
	B64JSON string `json:"b64_json,required"`
	// The background setting for the requested edited image.
	//
	// Any of "transparent", "opaque", "auto".
	Background ImageEditPartialImageEventBackground `json:"background,required"`
	// The Unix timestamp when the event was created.
	CreatedAt int64 `json:"created_at,required"`
	// The output format for the requested edited image.
	//
	// Any of "png", "webp", "jpeg".
	OutputFormat ImageEditPartialImageEventOutputFormat `json:"output_format,required"`
	// 0-based index for the partial image (streaming).
	PartialImageIndex int64 `json:"partial_image_index,required"`
	// The quality setting for the requested edited image.
	//
	// Any of "low", "medium", "high", "auto".
	Quality ImageEditPartialImageEventQuality `json:"quality,required"`
	// The size of the requested edited image.
	//
	// Any of "1024x1024", "1024x1536", "1536x1024", "auto".
	Size ImageEditPartialImageEventSize `json:"size,required"`
	// The type of the event. Always `image_edit.partial_image`.
	Type constant.ImageEditPartialImage `json:"type,required"`
	// JSON contains metadata for fields, check presence with [respjson.Field.Valid].
	JSON struct {
		B64JSON           respjson.Field
		Background        respjson.Field
		CreatedAt         respjson.Field
		OutputFormat      respjson.Field
		PartialImageIndex respjson.Field
		Quality           respjson.Field
		Size              respjson.Field
		Type              respjson.Field
		ExtraFields       map[string]respjson.Field
		raw               string
	} `json:"-"`
}

// Returns the unmodified JSON received from the API
func (r ImageEditPartialImageEvent) RawJSON() string { return r.JSON.raw }
func (r *ImageEditPartialImageEvent) UnmarshalJSON(data []byte) error {
	return apijson.UnmarshalRoot(data, r)
}

// The background setting for the requested edited image.
type ImageEditPartialImageEventBackground string

const (
	ImageEditPartialImageEventBackgroundTransparent ImageEditPartialImageEventBackground = "transparent"
	ImageEditPartialImageEventBackgroundOpaque      ImageEditPartialImageEventBackground = "opaque"
	ImageEditPartialImageEventBackgroundAuto        ImageEditPartialImageEventBackground = "auto"
)

// The output format for the requested edited image.
type ImageEditPartialImageEventOutputFormat string

const (
	ImageEditPartialImageEventOutputFormatPNG  ImageEditPartialImageEventOutputFormat = "png"
	ImageEditPartialImageEventOutputFormatWebP ImageEditPartialImageEventOutputFormat = "webp"
	ImageEditPartialImageEventOutputFormatJPEG ImageEditPartialImageEventOutputFormat = "jpeg"
)

// The quality setting for the requested edited image.
type ImageEditPartialImageEventQuality string

const (
	ImageEditPartialImageEventQualityLow    ImageEditPartialImageEventQuality = "low"
	ImageEditPartialImageEventQualityMedium ImageEditPartialImageEventQuality = "medium"
	ImageEditPartialImageEventQualityHigh   ImageEditPartialImageEventQuality = "high"
	ImageEditPartialImageEventQualityAuto   ImageEditPartialImageEventQuality = "auto"
)

// The size of the requested edited image.
type ImageEditPartialImageEventSize string

const (
	ImageEditPartialImageEventSize1024x1024 ImageEditPartialImageEventSize = "1024x1024"
	ImageEditPartialImageEventSize1024x1536 ImageEditPartialImageEventSize = "1024x1536"
	ImageEditPartialImageEventSize1536x1024 ImageEditPartialImageEventSize = "1536x1024"
	ImageEditPartialImageEventSizeAuto      ImageEditPartialImageEventSize = "auto"
)

// ImageEditStreamEventUnion contains all possible properties and values from
// [ImageEditPartialImageEvent], [ImageEditCompletedEvent].
//
// Use the [ImageEditStreamEventUnion.AsAny] method to switch on the variant.
//
// Use the methods beginning with 'As' to cast the union to one of its variants.
type ImageEditStreamEventUnion struct {
	B64JSON      string `json:"b64_json"`
	Background   string `json:"background"`
	CreatedAt    int64  `json:"created_at"`
	OutputFormat string `json:"output_format"`
	// This field is from variant [ImageEditPartialImageEvent].
	PartialImageIndex int64  `json:"partial_image_index"`
	Quality           string `json:"quality"`
	Size              string `json:"size"`
	// Any of "image_edit.partial_image", "image_edit.completed".
	Type string `json:"type"`
	// This field is from variant [ImageEditCompletedEvent].
	Usage ImageEditCompletedEventUsage `json:"usage"`
	JSON  struct {
		B64JSON           respjson.Field
		Background        respjson.Field
		CreatedAt         respjson.Field
		OutputFormat      respjson.Field
		PartialImageIndex respjson.Field
		Quality           respjson.Field
		Size              respjson.Field
		Type              respjson.Field
		Usage             respjson.Field
		raw               string
	} `json:"-"`
}

// anyImageEditStreamEvent is implemented by each variant of
// [ImageEditStreamEventUnion] to add type safety for the return type of
// [ImageEditStreamEventUnion.AsAny]
type anyImageEditStreamEvent interface {
	implImageEditStreamEventUnion()
}

func (ImageEditPartialImageEvent) implImageEditStreamEventUnion() {}
func (ImageEditCompletedEvent) implImageEditStreamEventUnion()    {}

// Use the following switch statement to find the correct variant
//
//	switch variant := ImageEditStreamEventUnion.AsAny().(type) {
//	case openai.ImageEditPartialImageEvent:
//	case openai.ImageEditCompletedEvent:
//	default:
//	  fmt.Errorf("no variant present")
//	}
func (u ImageEditStreamEventUnion) AsAny() anyImageEditStreamEvent {
	switch u.Type {
	case "image_edit.partial_image":
		return u.AsImageEditPartialImage()
	case "image_edit.completed":
		return u.AsImageEditCompleted()
	}
	return nil
}

func (u ImageEditStreamEventUnion) AsImageEditPartialImage() (v ImageEditPartialImageEvent) {
	apijson.UnmarshalRoot(json.RawMessage(u.JSON.raw), &v)
	return
}

func (u ImageEditStreamEventUnion) AsImageEditCompleted() (v ImageEditCompletedEvent) {
	apijson.UnmarshalRoot(json.RawMessage(u.JSON.raw), &v)
	return
}

// Returns the unmodified JSON received from the API
func (u ImageEditStreamEventUnion) RawJSON() string { return u.JSON.raw }

func (r *ImageEditStreamEventUnion) UnmarshalJSON(data []byte) error {
	return apijson.UnmarshalRoot(data, r)
}

// Emitted when image generation has completed and the final image is available.
type ImageGenCompletedEvent struct {
	// Base64-encoded image data, suitable for rendering as an image.
	B64JSON string `json:"b64_json,required"`
	// The background setting for the generated image.
	//
	// Any of "transparent", "opaque", "auto".
	Background ImageGenCompletedEventBackground `json:"background,required"`
	// The Unix timestamp when the event was created.
	CreatedAt int64 `json:"created_at,required"`
	// The output format for the generated image.
	//
	// Any of "png", "webp", "jpeg".
	OutputFormat ImageGenCompletedEventOutputFormat `json:"output_format,required"`
	// The quality setting for the generated image.
	//
	// Any of "low", "medium", "high", "auto".
	Quality ImageGenCompletedEventQuality `json:"quality,required"`
	// The size of the generated image.
	//
	// Any of "1024x1024", "1024x1536", "1536x1024", "auto".
	Size ImageGenCompletedEventSize `json:"size,required"`
	// The type of the event. Always `image_generation.completed`.
	Type constant.ImageGenerationCompleted `json:"type,required"`
	// For the GPT image models only, the token usage information for the image
	// generation.
	Usage ImageGenCompletedEventUsage `json:"usage,required"`
	// JSON contains metadata for fields, check presence with [respjson.Field.Valid].
	JSON struct {
		B64JSON      respjson.Field
		Background   respjson.Field
		CreatedAt    respjson.Field
		OutputFormat respjson.Field
		Quality      respjson.Field
		Size         respjson.Field
		Type         respjson.Field
		Usage        respjson.Field
		ExtraFields  map[string]respjson.Field
		raw          string
	} `json:"-"`
}

// Returns the unmodified JSON received from the API
func (r ImageGenCompletedEvent) RawJSON() string { return r.JSON.raw }
func (r *ImageGenCompletedEvent) UnmarshalJSON(data []byte) error {
	return apijson.UnmarshalRoot(data, r)
}

// The background setting for the generated image.
type ImageGenCompletedEventBackground string

const (
	ImageGenCompletedEventBackgroundTransparent ImageGenCompletedEventBackground = "transparent"
	ImageGenCompletedEventBackgroundOpaque      ImageGenCompletedEventBackground = "opaque"
	ImageGenCompletedEventBackgroundAuto        ImageGenCompletedEventBackground = "auto"
)

// The output format for the generated image.
type ImageGenCompletedEventOutputFormat string

const (
	ImageGenCompletedEventOutputFormatPNG  ImageGenCompletedEventOutputFormat = "png"
	ImageGenCompletedEventOutputFormatWebP ImageGenCompletedEventOutputFormat = "webp"
	ImageGenCompletedEventOutputFormatJPEG ImageGenCompletedEventOutputFormat = "jpeg"
)

// The quality setting for the generated image.
type ImageGenCompletedEventQuality string

const (
	ImageGenCompletedEventQualityLow    ImageGenCompletedEventQuality = "low"
	ImageGenCompletedEventQualityMedium ImageGenCompletedEventQuality = "medium"
	ImageGenCompletedEventQualityHigh   ImageGenCompletedEventQuality = "high"
	ImageGenCompletedEventQualityAuto   ImageGenCompletedEventQuality = "auto"
)

// The size of the generated image.
type ImageGenCompletedEventSize string

const (
	ImageGenCompletedEventSize1024x1024 ImageGenCompletedEventSize = "1024x1024"
	ImageGenCompletedEventSize1024x1536 ImageGenCompletedEventSize = "1024x1536"
	ImageGenCompletedEventSize1536x1024 ImageGenCompletedEventSize = "1536x1024"
	ImageGenCompletedEventSizeAuto      ImageGenCompletedEventSize = "auto"
)

// For the GPT image models only, the token usage information for the image
// generation.
type ImageGenCompletedEventUsage struct {
	// The number of tokens (images and text) in the input prompt.
	InputTokens int64 `json:"input_tokens,required"`
	// The input tokens detailed information for the image generation.
	InputTokensDetails ImageGenCompletedEventUsageInputTokensDetails `json:"input_tokens_details,required"`
	// The number of image tokens in the output image.
	OutputTokens int64 `json:"output_tokens,required"`
	// The total number of tokens (images and text) used for the image generation.
	TotalTokens int64 `json:"total_tokens,required"`
	// JSON contains metadata for fields, check presence with [respjson.Field.Valid].
	JSON struct {
		InputTokens        respjson.Field
		InputTokensDetails respjson.Field
		OutputTokens       respjson.Field
		TotalTokens        respjson.Field
		ExtraFields        map[string]respjson.Field
		raw                string
	} `json:"-"`
}

// Returns the unmodified JSON received from the API
func (r ImageGenCompletedEventUsage) RawJSON() string { return r.JSON.raw }
func (r *ImageGenCompletedEventUsage) UnmarshalJSON(data []byte) error {
	return apijson.UnmarshalRoot(data, r)
}

// The input tokens detailed information for the image generation.
type ImageGenCompletedEventUsageInputTokensDetails struct {
	// The number of image tokens in the input prompt.
	ImageTokens int64 `json:"image_tokens,required"`
	// The number of text tokens in the input prompt.
	TextTokens int64 `json:"text_tokens,required"`
	// JSON contains metadata for fields, check presence with [respjson.Field.Valid].
	JSON struct {
		ImageTokens respjson.Field
		TextTokens  respjson.Field
		ExtraFields map[string]respjson.Field
		raw         string
	} `json:"-"`
}

// Returns the unmodified JSON received from the API
func (r ImageGenCompletedEventUsageInputTokensDetails) RawJSON() string { return r.JSON.raw }
func (r *ImageGenCompletedEventUsageInputTokensDetails) UnmarshalJSON(data []byte) error {
	return apijson.UnmarshalRoot(data, r)
}

// Emitted when a partial image is available during image generation streaming.
type ImageGenPartialImageEvent struct {
	// Base64-encoded partial image data, suitable for rendering as an image.
	B64JSON string `json:"b64_json,required"`
	// The background setting for the requested image.
	//
	// Any of "transparent", "opaque", "auto".
	Background ImageGenPartialImageEventBackground `json:"background,required"`
	// The Unix timestamp when the event was created.
	CreatedAt int64 `json:"created_at,required"`
	// The output format for the requested image.
	//
	// Any of "png", "webp", "jpeg".
	OutputFormat ImageGenPartialImageEventOutputFormat `json:"output_format,required"`
	// 0-based index for the partial image (streaming).
	PartialImageIndex int64 `json:"partial_image_index,required"`
	// The quality setting for the requested image.
	//
	// Any of "low", "medium", "high", "auto".
	Quality ImageGenPartialImageEventQuality `json:"quality,required"`
	// The size of the requested image.
	//
	// Any of "1024x1024", "1024x1536", "1536x1024", "auto".
	Size ImageGenPartialImageEventSize `json:"size,required"`
	// The type of the event. Always `image_generation.partial_image`.
	Type constant.ImageGenerationPartialImage `json:"type,required"`
	// JSON contains metadata for fields, check presence with [respjson.Field.Valid].
	JSON struct {
		B64JSON           respjson.Field
		Background        respjson.Field
		CreatedAt         respjson.Field
		OutputFormat      respjson.Field
		PartialImageIndex respjson.Field
		Quality           respjson.Field
		Size              respjson.Field
		Type              respjson.Field
		ExtraFields       map[string]respjson.Field
		raw               string
	} `json:"-"`
}

// Returns the unmodified JSON received from the API
func (r ImageGenPartialImageEvent) RawJSON() string { return r.JSON.raw }
func (r *ImageGenPartialImageEvent) UnmarshalJSON(data []byte) error {
	return apijson.UnmarshalRoot(data, r)
}

// The background setting for the requested image.
type ImageGenPartialImageEventBackground string

const (
	ImageGenPartialImageEventBackgroundTransparent ImageGenPartialImageEventBackground = "transparent"
	ImageGenPartialImageEventBackgroundOpaque      ImageGenPartialImageEventBackground = "opaque"
	ImageGenPartialImageEventBackgroundAuto        ImageGenPartialImageEventBackground = "auto"
)

// The output format for the requested image.
type ImageGenPartialImageEventOutputFormat string

const (
	ImageGenPartialImageEventOutputFormatPNG  ImageGenPartialImageEventOutputFormat = "png"
	ImageGenPartialImageEventOutputFormatWebP ImageGenPartialImageEventOutputFormat = "webp"
	ImageGenPartialImageEventOutputFormatJPEG ImageGenPartialImageEventOutputFormat = "jpeg"
)

// The quality setting for the requested image.
type ImageGenPartialImageEventQuality string

const (
	ImageGenPartialImageEventQualityLow    ImageGenPartialImageEventQuality = "low"
	ImageGenPartialImageEventQualityMedium ImageGenPartialImageEventQuality = "medium"
	ImageGenPartialImageEventQualityHigh   ImageGenPartialImageEventQuality = "high"
	ImageGenPartialImageEventQualityAuto   ImageGenPartialImageEventQuality = "auto"
)

// The size of the requested image.
type ImageGenPartialImageEventSize string

const (
	ImageGenPartialImageEventSize1024x1024 ImageGenPartialImageEventSize = "1024x1024"
	ImageGenPartialImageEventSize1024x1536 ImageGenPartialImageEventSize = "1024x1536"
	ImageGenPartialImageEventSize1536x1024 ImageGenPartialImageEventSize = "1536x1024"
	ImageGenPartialImageEventSizeAuto      ImageGenPartialImageEventSize = "auto"
)

// ImageGenStreamEventUnion contains all possible properties and values from
// [ImageGenPartialImageEvent], [ImageGenCompletedEvent].
//
// Use the [ImageGenStreamEventUnion.AsAny] method to switch on the variant.
//
// Use the methods beginning with 'As' to cast the union to one of its variants.
type ImageGenStreamEventUnion struct {
	B64JSON      string `json:"b64_json"`
	Background   string `json:"background"`
	CreatedAt    int64  `json:"created_at"`
	OutputFormat string `json:"output_format"`
	// This field is from variant [ImageGenPartialImageEvent].
	PartialImageIndex int64  `json:"partial_image_index"`
	Quality           string `json:"quality"`
	Size              string `json:"size"`
	// Any of "image_generation.partial_image", "image_generation.completed".
	Type string `json:"type"`
	// This field is from variant [ImageGenCompletedEvent].
	Usage ImageGenCompletedEventUsage `json:"usage"`
	JSON  struct {
		B64JSON           respjson.Field
		Background        respjson.Field
		CreatedAt         respjson.Field
		OutputFormat      respjson.Field
		PartialImageIndex respjson.Field
		Quality           respjson.Field
		Size              respjson.Field
		Type              respjson.Field
		Usage             respjson.Field
		raw               string
	} `json:"-"`
}

// anyImageGenStreamEvent is implemented by each variant of
// [ImageGenStreamEventUnion] to add type safety for the return type of
// [ImageGenStreamEventUnion.AsAny]
type anyImageGenStreamEvent interface {
	implImageGenStreamEventUnion()
}

func (ImageGenPartialImageEvent) implImageGenStreamEventUnion() {}
func (ImageGenCompletedEvent) implImageGenStreamEventUnion()    {}

// Use the following switch statement to find the correct variant
//
//	switch variant := ImageGenStreamEventUnion.AsAny().(type) {
//	case openai.ImageGenPartialImageEvent:
//	case openai.ImageGenCompletedEvent:
//	default:
//	  fmt.Errorf("no variant present")
//	}
func (u ImageGenStreamEventUnion) AsAny() anyImageGenStreamEvent {
	switch u.Type {
	case "image_generation.partial_image":
		return u.AsImageGenerationPartialImage()
	case "image_generation.completed":
		return u.AsImageGenerationCompleted()
	}
	return nil
}

func (u ImageGenStreamEventUnion) AsImageGenerationPartialImage() (v ImageGenPartialImageEvent) {
	apijson.UnmarshalRoot(json.RawMessage(u.JSON.raw), &v)
	return
}

func (u ImageGenStreamEventUnion) AsImageGenerationCompleted() (v ImageGenCompletedEvent) {
	apijson.UnmarshalRoot(json.RawMessage(u.JSON.raw), &v)
	return
}

// Returns the unmodified JSON received from the API
func (u ImageGenStreamEventUnion) RawJSON() string { return u.JSON.raw }

func (r *ImageGenStreamEventUnion) UnmarshalJSON(data []byte) error {
	return apijson.UnmarshalRoot(data, r)
}

type ImageModel = string

const (
	ImageModelGPTImage1_5   ImageModel = "gpt-image-1.5"
	ImageModelDallE2        ImageModel = "dall-e-2"
	ImageModelDallE3        ImageModel = "dall-e-3"
	ImageModelGPTImage1     ImageModel = "gpt-image-1"
	ImageModelGPTImage1Mini ImageModel = "gpt-image-1-mini"
)

// The response from the image generation endpoint.
type ImagesResponse struct {
	// The Unix timestamp (in seconds) of when the image was created.
	Created int64 `json:"created,required"`
	// The background parameter used for the image generation. Either `transparent` or
	// `opaque`.
	//
	// Any of "transparent", "opaque".
	Background ImagesResponseBackground `json:"background"`
	// The list of generated images.
	Data []Image `json:"data"`
	// The output format of the image generation. Either `png`, `webp`, or `jpeg`.
	//
	// Any of "png", "webp", "jpeg".
	OutputFormat ImagesResponseOutputFormat `json:"output_format"`
	// The quality of the image generated. Either `low`, `medium`, or `high`.
	//
	// Any of "low", "medium", "high".
	Quality ImagesResponseQuality `json:"quality"`
	// The size of the image generated. Either `1024x1024`, `1024x1536`, or
	// `1536x1024`.
	//
	// Any of "1024x1024", "1024x1536", "1536x1024".
	Size ImagesResponseSize `json:"size"`
	// For `gpt-image-1` only, the token usage information for the image generation.
	Usage ImagesResponseUsage `json:"usage"`
	// JSON contains metadata for fields, check presence with [respjson.Field.Valid].
	JSON struct {
		Created      respjson.Field
		Background   respjson.Field
		Data         respjson.Field
		OutputFormat respjson.Field
		Quality      respjson.Field
		Size         respjson.Field
		Usage        respjson.Field
		ExtraFields  map[string]respjson.Field
		raw          string
	} `json:"-"`
}

// Returns the unmodified JSON received from the API
func (r ImagesResponse) RawJSON() string { return r.JSON.raw }
func (r *ImagesResponse) UnmarshalJSON(data []byte) error {
	return apijson.UnmarshalRoot(data, r)
}

// The background parameter used for the image generation. Either `transparent` or
// `opaque`.
type ImagesResponseBackground string

const (
	ImagesResponseBackgroundTransparent ImagesResponseBackground = "transparent"
	ImagesResponseBackgroundOpaque      ImagesResponseBackground = "opaque"
)

// The output format of the image generation. Either `png`, `webp`, or `jpeg`.
type ImagesResponseOutputFormat string

const (
	ImagesResponseOutputFormatPNG  ImagesResponseOutputFormat = "png"
	ImagesResponseOutputFormatWebP ImagesResponseOutputFormat = "webp"
	ImagesResponseOutputFormatJPEG ImagesResponseOutputFormat = "jpeg"
)

// The quality of the image generated. Either `low`, `medium`, or `high`.
type ImagesResponseQuality string

const (
	ImagesResponseQualityLow    ImagesResponseQuality = "low"
	ImagesResponseQualityMedium ImagesResponseQuality = "medium"
	ImagesResponseQualityHigh   ImagesResponseQuality = "high"
)

// The size of the image generated. Either `1024x1024`, `1024x1536`, or
// `1536x1024`.
type ImagesResponseSize string

const (
	ImagesResponseSize1024x1024 ImagesResponseSize = "1024x1024"
	ImagesResponseSize1024x1536 ImagesResponseSize = "1024x1536"
	ImagesResponseSize1536x1024 ImagesResponseSize = "1536x1024"
)

// For `gpt-image-1` only, the token usage information for the image generation.
type ImagesResponseUsage struct {
	// The number of tokens (images and text) in the input prompt.
	InputTokens int64 `json:"input_tokens,required"`
	// The input tokens detailed information for the image generation.
	InputTokensDetails ImagesResponseUsageInputTokensDetails `json:"input_tokens_details,required"`
	// The number of output tokens generated by the model.
	OutputTokens int64 `json:"output_tokens,required"`
	// The total number of tokens (images and text) used for the image generation.
	TotalTokens int64 `json:"total_tokens,required"`
	// The output token details for the image generation.
	OutputTokensDetails ImagesResponseUsageOutputTokensDetails `json:"output_tokens_details"`
	// JSON contains metadata for fields, check presence with [respjson.Field.Valid].
	JSON struct {
		InputTokens         respjson.Field
		InputTokensDetails  respjson.Field
		OutputTokens        respjson.Field
		TotalTokens         respjson.Field
		OutputTokensDetails respjson.Field
		ExtraFields         map[string]respjson.Field
		raw                 string
	} `json:"-"`
}

// Returns the unmodified JSON received from the API
func (r ImagesResponseUsage) RawJSON() string { return r.JSON.raw }
func (r *ImagesResponseUsage) UnmarshalJSON(data []byte) error {
	return apijson.UnmarshalRoot(data, r)
}

// The input tokens detailed information for the image generation.
type ImagesResponseUsageInputTokensDetails struct {
	// The number of image tokens in the input prompt.
	ImageTokens int64 `json:"image_tokens,required"`
	// The number of text tokens in the input prompt.
	TextTokens int64 `json:"text_tokens,required"`
	// JSON contains metadata for fields, check presence with [respjson.Field.Valid].
	JSON struct {
		ImageTokens respjson.Field
		TextTokens  respjson.Field
		ExtraFields map[string]respjson.Field
		raw         string
	} `json:"-"`
}

// Returns the unmodified JSON received from the API
func (r ImagesResponseUsageInputTokensDetails) RawJSON() string { return r.JSON.raw }
func (r *ImagesResponseUsageInputTokensDetails) UnmarshalJSON(data []byte) error {
	return apijson.UnmarshalRoot(data, r)
}

// The output token details for the image generation.
type ImagesResponseUsageOutputTokensDetails struct {
	// The number of image output tokens generated by the model.
	ImageTokens int64 `json:"image_tokens,required"`
	// The number of text output tokens generated by the model.
	TextTokens int64 `json:"text_tokens,required"`
	// JSON contains metadata for fields, check presence with [respjson.Field.Valid].
	JSON struct {
		ImageTokens respjson.Field
		TextTokens  respjson.Field
		ExtraFields map[string]respjson.Field
		raw         string
	} `json:"-"`
}

// Returns the unmodified JSON received from the API
func (r ImagesResponseUsageOutputTokensDetails) RawJSON() string { return r.JSON.raw }
func (r *ImagesResponseUsageOutputTokensDetails) UnmarshalJSON(data []byte) error {
	return apijson.UnmarshalRoot(data, r)
}

type ImageNewVariationParams struct {
	// The image to use as the basis for the variation(s). Must be a valid PNG file,
	// less than 4MB, and square.
	Image io.Reader `json:"image,omitzero,required" format:"binary"`
	// The number of images to generate. Must be between 1 and 10.
	N param.Opt[int64] `json:"n,omitzero"`
	// A unique identifier representing your end-user, which can help OpenAI to monitor
	// and detect abuse.
	// [Learn more](https://platform.openai.com/docs/guides/safety-best-practices#end-user-ids).
	User param.Opt[string] `json:"user,omitzero"`
	// The model to use for image generation. Only `dall-e-2` is supported at this
	// time.
	Model ImageModel `json:"model,omitzero"`
	// The format in which the generated images are returned. Must be one of `url` or
	// `b64_json`. URLs are only valid for 60 minutes after the image has been
	// generated.
	//
	// Any of "url", "b64_json".
	ResponseFormat ImageNewVariationParamsResponseFormat `json:"response_format,omitzero"`
	// The size of the generated images. Must be one of `256x256`, `512x512`, or
	// `1024x1024`.
	//
	// Any of "256x256", "512x512", "1024x1024".
	Size ImageNewVariationParamsSize `json:"size,omitzero"`
	paramObj
}

func (r ImageNewVariationParams) MarshalMultipart() (data []byte, contentType string, err error) {
	buf := bytes.NewBuffer(nil)
	writer := multipart.NewWriter(buf)
	err = apiform.MarshalRoot(r, writer)
	if err == nil {
		err = apiform.WriteExtras(writer, r.ExtraFields())
	}
	if err != nil {
		writer.Close()
		return nil, "", err
	}
	err = writer.Close()
	if err != nil {
		return nil, "", err
	}
	return buf.Bytes(), writer.FormDataContentType(), nil
}

// The format in which the generated images are returned. Must be one of `url` or
// `b64_json`. URLs are only valid for 60 minutes after the image has been
// generated.
type ImageNewVariationParamsResponseFormat string

const (
	ImageNewVariationParamsResponseFormatURL     ImageNewVariationParamsResponseFormat = "url"
	ImageNewVariationParamsResponseFormatB64JSON ImageNewVariationParamsResponseFormat = "b64_json"
)

// The size of the generated images. Must be one of `256x256`, `512x512`, or
// `1024x1024`.
type ImageNewVariationParamsSize string

const (
	ImageNewVariationParamsSize256x256   ImageNewVariationParamsSize = "256x256"
	ImageNewVariationParamsSize512x512   ImageNewVariationParamsSize = "512x512"
	ImageNewVariationParamsSize1024x1024 ImageNewVariationParamsSize = "1024x1024"
)

type ImageEditParams struct {
	// The image(s) to edit. Must be a supported image file or an array of images.
	//
	// For the GPT image models (`gpt-image-1`, `gpt-image-1-mini`, and
	// `gpt-image-1.5`), each image should be a `png`, `webp`, or `jpg` file less than
	// 50MB. You can provide up to 16 images.
	//
	// For `dall-e-2`, you can only provide one image, and it should be a square `png`
	// file less than 4MB.
	Image ImageEditParamsImageUnion `json:"image,omitzero,required" format:"binary"`
	// A text description of the desired image(s). The maximum length is 1000
	// characters for `dall-e-2`, and 32000 characters for the GPT image models.
	Prompt string `json:"prompt,required"`
	// The number of images to generate. Must be between 1 and 10.
	N param.Opt[int64] `json:"n,omitzero"`
	// The compression level (0-100%) for the generated images. This parameter is only
	// supported for the GPT image models with the `webp` or `jpeg` output formats, and
	// defaults to 100.
	OutputCompression param.Opt[int64] `json:"output_compression,omitzero"`
	// The number of partial images to generate. This parameter is used for streaming
	// responses that return partial images. Value must be between 0 and 3. When set to
	// 0, the response will be a single image sent in one streaming event.
	//
	// Note that the final image may be sent before the full number of partial images
	// are generated if the full image is generated more quickly.
	PartialImages param.Opt[int64] `json:"partial_images,omitzero"`
	// A unique identifier representing your end-user, which can help OpenAI to monitor
	// and detect abuse.
	// [Learn more](https://platform.openai.com/docs/guides/safety-best-practices#end-user-ids).
	User param.Opt[string] `json:"user,omitzero"`
	// Allows to set transparency for the background of the generated image(s). This
	// parameter is only supported for the GPT image models. Must be one of
	// `transparent`, `opaque` or `auto` (default value). When `auto` is used, the
	// model will automatically determine the best background for the image.
	//
	// If `transparent`, the output format needs to support transparency, so it should
	// be set to either `png` (default value) or `webp`.
	//
	// Any of "transparent", "opaque", "auto".
	Background ImageEditParamsBackground `json:"background,omitzero"`
	// Control how much effort the model will exert to match the style and features,
	// especially facial features, of input images. This parameter is only supported
	// for `gpt-image-1`. Unsupported for `gpt-image-1-mini`. Supports `high` and
	// `low`. Defaults to `low`.
	//
	// Any of "high", "low".
	InputFidelity ImageEditParamsInputFidelity `json:"input_fidelity,omitzero"`
	// The model to use for image generation. Only `dall-e-2` and the GPT image models
	// are supported. Defaults to `dall-e-2` unless a parameter specific to the GPT
	// image models is used.
	Model ImageModel `json:"model,omitzero"`
	// The format in which the generated images are returned. This parameter is only
	// supported for the GPT image models. Must be one of `png`, `jpeg`, or `webp`. The
	// default value is `png`.
	//
	// Any of "png", "jpeg", "webp".
	OutputFormat ImageEditParamsOutputFormat `json:"output_format,omitzero"`
	// The quality of the image that will be generated. `high`, `medium` and `low` are
	// only supported for the GPT image models. `dall-e-2` only supports `standard`
	// quality. Defaults to `auto`.
	//
	// Any of "standard", "low", "medium", "high", "auto".
	Quality ImageEditParamsQuality `json:"quality,omitzero"`
	// The format in which the generated images are returned. Must be one of `url` or
	// `b64_json`. URLs are only valid for 60 minutes after the image has been
	// generated. This parameter is only supported for `dall-e-2`, as the GPT image
	// models always return base64-encoded images.
	//
	// Any of "url", "b64_json".
	ResponseFormat ImageEditParamsResponseFormat `json:"response_format,omitzero"`
	// The size of the generated images. Must be one of `1024x1024`, `1536x1024`
	// (landscape), `1024x1536` (portrait), or `auto` (default value) for the GPT image
	// models, and one of `256x256`, `512x512`, or `1024x1024` for `dall-e-2`.
	//
	// Any of "256x256", "512x512", "1024x1024", "1536x1024", "1024x1536", "auto".
	Size ImageEditParamsSize `json:"size,omitzero"`
	// An additional image whose fully transparent areas (e.g. where alpha is zero)
	// indicate where `image` should be edited. If there are multiple images provided,
	// the mask will be applied on the first image. Must be a valid PNG file, less than
	// 4MB, and have the same dimensions as `image`.
	Mask io.Reader `json:"mask,omitzero" format:"binary"`
	paramObj
}

func (r ImageEditParams) MarshalMultipart() (data []byte, contentType string, err error) {
	buf := bytes.NewBuffer(nil)
	writer := multipart.NewWriter(buf)
	err = apiform.MarshalRoot(r, writer)
	if err == nil {
		err = apiform.WriteExtras(writer, r.ExtraFields())
	}
	if err != nil {
		writer.Close()
		return nil, "", err
	}
	err = writer.Close()
	if err != nil {
		return nil, "", err
	}
	return buf.Bytes(), writer.FormDataContentType(), nil
}

// Only one field can be non-zero.
//
// Use [param.IsOmitted] to confirm if a field is set.
type ImageEditParamsImageUnion struct {
	OfFile      io.Reader   `json:",omitzero,inline"`
	OfFileArray []io.Reader `json:",omitzero,inline"`
	paramUnion
}

func (u ImageEditParamsImageUnion) MarshalJSON() ([]byte, error) {
	return param.MarshalUnion(u, u.OfFile, u.OfFileArray)
}
func (u *ImageEditParamsImageUnion) UnmarshalJSON(data []byte) error {
	return apijson.UnmarshalRoot(data, u)
}

func (u *ImageEditParamsImageUnion) asAny() any {
	if !param.IsOmitted(u.OfFile) {
		return &u.OfFile
	} else if !param.IsOmitted(u.OfFileArray) {
		return &u.OfFileArray
	}
	return nil
}

// Allows to set transparency for the background of the generated image(s). This
// parameter is only supported for the GPT image models. Must be one of
// `transparent`, `opaque` or `auto` (default value). When `auto` is used, the
// model will automatically determine the best background for the image.
//
// If `transparent`, the output format needs to support transparency, so it should
// be set to either `png` (default value) or `webp`.
type ImageEditParamsBackground string

const (
	ImageEditParamsBackgroundTransparent ImageEditParamsBackground = "transparent"
	ImageEditParamsBackgroundOpaque      ImageEditParamsBackground = "opaque"
	ImageEditParamsBackgroundAuto        ImageEditParamsBackground = "auto"
)

// Control how much effort the model will exert to match the style and features,
// especially facial features, of input images. This parameter is only supported
// for `gpt-image-1`. Unsupported for `gpt-image-1-mini`. Supports `high` and
// `low`. Defaults to `low`.
type ImageEditParamsInputFidelity string

const (
	ImageEditParamsInputFidelityHigh ImageEditParamsInputFidelity = "high"
	ImageEditParamsInputFidelityLow  ImageEditParamsInputFidelity = "low"
)

// The format in which the generated images are returned. This parameter is only
// supported for the GPT image models. Must be one of `png`, `jpeg`, or `webp`. The
// default value is `png`.
type ImageEditParamsOutputFormat string

const (
	ImageEditParamsOutputFormatPNG  ImageEditParamsOutputFormat = "png"
	ImageEditParamsOutputFormatJPEG ImageEditParamsOutputFormat = "jpeg"
	ImageEditParamsOutputFormatWebP ImageEditParamsOutputFormat = "webp"
)

// The quality of the image that will be generated. `high`, `medium` and `low` are
// only supported for the GPT image models. `dall-e-2` only supports `standard`
// quality. Defaults to `auto`.
type ImageEditParamsQuality string

const (
	ImageEditParamsQualityStandard ImageEditParamsQuality = "standard"
	ImageEditParamsQualityLow      ImageEditParamsQuality = "low"
	ImageEditParamsQualityMedium   ImageEditParamsQuality = "medium"
	ImageEditParamsQualityHigh     ImageEditParamsQuality = "high"
	ImageEditParamsQualityAuto     ImageEditParamsQuality = "auto"
)

// The format in which the generated images are returned. Must be one of `url` or
// `b64_json`. URLs are only valid for 60 minutes after the image has been
// generated. This parameter is only supported for `dall-e-2`, as the GPT image
// models always return base64-encoded images.
type ImageEditParamsResponseFormat string

const (
	ImageEditParamsResponseFormatURL     ImageEditParamsResponseFormat = "url"
	ImageEditParamsResponseFormatB64JSON ImageEditParamsResponseFormat = "b64_json"
)

// The size of the generated images. Must be one of `1024x1024`, `1536x1024`
// (landscape), `1024x1536` (portrait), or `auto` (default value) for the GPT image
// models, and one of `256x256`, `512x512`, or `1024x1024` for `dall-e-2`.
type ImageEditParamsSize string

const (
	ImageEditParamsSize256x256   ImageEditParamsSize = "256x256"
	ImageEditParamsSize512x512   ImageEditParamsSize = "512x512"
	ImageEditParamsSize1024x1024 ImageEditParamsSize = "1024x1024"
	ImageEditParamsSize1536x1024 ImageEditParamsSize = "1536x1024"
	ImageEditParamsSize1024x1536 ImageEditParamsSize = "1024x1536"
	ImageEditParamsSizeAuto      ImageEditParamsSize = "auto"
)

type ImageGenerateParams struct {
	// A text description of the desired image(s). The maximum length is 32000
	// characters for the GPT image models, 1000 characters for `dall-e-2` and 4000
	// characters for `dall-e-3`.
	Prompt string `json:"prompt,required"`
	// The number of images to generate. Must be between 1 and 10. For `dall-e-3`, only
	// `n=1` is supported.
	N param.Opt[int64] `json:"n,omitzero"`
	// The compression level (0-100%) for the generated images. This parameter is only
	// supported for the GPT image models with the `webp` or `jpeg` output formats, and
	// defaults to 100.
	OutputCompression param.Opt[int64] `json:"output_compression,omitzero"`
	// The number of partial images to generate. This parameter is used for streaming
	// responses that return partial images. Value must be between 0 and 3. When set to
	// 0, the response will be a single image sent in one streaming event.
	//
	// Note that the final image may be sent before the full number of partial images
	// are generated if the full image is generated more quickly.
	PartialImages param.Opt[int64] `json:"partial_images,omitzero"`
	// A unique identifier representing your end-user, which can help OpenAI to monitor
	// and detect abuse.
	// [Learn more](https://platform.openai.com/docs/guides/safety-best-practices#end-user-ids).
	User param.Opt[string] `json:"user,omitzero"`
	// Allows to set transparency for the background of the generated image(s). This
	// parameter is only supported for the GPT image models. Must be one of
	// `transparent`, `opaque` or `auto` (default value). When `auto` is used, the
	// model will automatically determine the best background for the image.
	//
	// If `transparent`, the output format needs to support transparency, so it should
	// be set to either `png` (default value) or `webp`.
	//
	// Any of "transparent", "opaque", "auto".
	Background ImageGenerateParamsBackground `json:"background,omitzero"`
	// The model to use for image generation. One of `dall-e-2`, `dall-e-3`, or a GPT
	// image model (`gpt-image-1`, `gpt-image-1-mini`, `gpt-image-1.5`). Defaults to
	// `dall-e-2` unless a parameter specific to the GPT image models is used.
	Model ImageModel `json:"model,omitzero"`
	// Control the content-moderation level for images generated by the GPT image
	// models. Must be either `low` for less restrictive filtering or `auto` (default
	// value).
	//
	// Any of "low", "auto".
	Moderation ImageGenerateParamsModeration `json:"moderation,omitzero"`
	// The format in which the generated images are returned. This parameter is only
	// supported for the GPT image models. Must be one of `png`, `jpeg`, or `webp`.
	//
	// Any of "png", "jpeg", "webp".
	OutputFormat ImageGenerateParamsOutputFormat `json:"output_format,omitzero"`
	// The quality of the image that will be generated.
	//
	//   - `auto` (default value) will automatically select the best quality for the
	//     given model.
	//   - `high`, `medium` and `low` are supported for the GPT image models.
	//   - `hd` and `standard` are supported for `dall-e-3`.
	//   - `standard` is the only option for `dall-e-2`.
	//
	// Any of "standard", "hd", "low", "medium", "high", "auto".
	Quality ImageGenerateParamsQuality `json:"quality,omitzero"`
	// The format in which generated images with `dall-e-2` and `dall-e-3` are
	// returned. Must be one of `url` or `b64_json`. URLs are only valid for 60 minutes
	// after the image has been generated. This parameter isn't supported for the GPT
	// image models, which always return base64-encoded images.
	//
	// Any of "url", "b64_json".
	ResponseFormat ImageGenerateParamsResponseFormat `json:"response_format,omitzero"`
	// The size of the generated images. Must be one of `1024x1024`, `1536x1024`
	// (landscape), `1024x1536` (portrait), or `auto` (default value) for the GPT image
	// models, one of `256x256`, `512x512`, or `1024x1024` for `dall-e-2`, and one of
	// `1024x1024`, `1792x1024`, or `1024x1792` for `dall-e-3`.
	//
	// Any of "auto", "1024x1024", "1536x1024", "1024x1536", "256x256", "512x512",
	// "1792x1024", "1024x1792".
	Size ImageGenerateParamsSize `json:"size,omitzero"`
	// The style of the generated images. This parameter is only supported for
	// `dall-e-3`. Must be one of `vivid` or `natural`. Vivid causes the model to lean
	// towards generating hyper-real and dramatic images. Natural causes the model to
	// produce more natural, less hyper-real looking images.
	//
	// Any of "vivid", "natural".
	Style ImageGenerateParamsStyle `json:"style,omitzero"`
	paramObj
}

func (r ImageGenerateParams) MarshalJSON() (data []byte, err error) {
	type shadow ImageGenerateParams
	return param.MarshalObject(r, (*shadow)(&r))
}
func (r *ImageGenerateParams) UnmarshalJSON(data []byte) error {
	return apijson.UnmarshalRoot(data, r)
}

// Allows to set transparency for the background of the generated image(s). This
// parameter is only supported for the GPT image models. Must be one of
// `transparent`, `opaque` or `auto` (default value). When `auto` is used, the
// model will automatically determine the best background for the image.
//
// If `transparent`, the output format needs to support transparency, so it should
// be set to either `png` (default value) or `webp`.
type ImageGenerateParamsBackground string

const (
	ImageGenerateParamsBackgroundTransparent ImageGenerateParamsBackground = "transparent"
	ImageGenerateParamsBackgroundOpaque      ImageGenerateParamsBackground = "opaque"
	ImageGenerateParamsBackgroundAuto        ImageGenerateParamsBackground = "auto"
)

// Control the content-moderation level for images generated by the GPT image
// models. Must be either `low` for less restrictive filtering or `auto` (default
// value).
type ImageGenerateParamsModeration string

const (
	ImageGenerateParamsModerationLow  ImageGenerateParamsModeration = "low"
	ImageGenerateParamsModerationAuto ImageGenerateParamsModeration = "auto"
)

// The format in which the generated images are returned. This parameter is only
// supported for the GPT image models. Must be one of `png`, `jpeg`, or `webp`.
type ImageGenerateParamsOutputFormat string

const (
	ImageGenerateParamsOutputFormatPNG  ImageGenerateParamsOutputFormat = "png"
	ImageGenerateParamsOutputFormatJPEG ImageGenerateParamsOutputFormat = "jpeg"
	ImageGenerateParamsOutputFormatWebP ImageGenerateParamsOutputFormat = "webp"
)

// The quality of the image that will be generated.
//
//   - `auto` (default value) will automatically select the best quality for the
//     given model.
//   - `high`, `medium` and `low` are supported for the GPT image models.
//   - `hd` and `standard` are supported for `dall-e-3`.
//   - `standard` is the only option for `dall-e-2`.
type ImageGenerateParamsQuality string

const (
	ImageGenerateParamsQualityStandard ImageGenerateParamsQuality = "standard"
	ImageGenerateParamsQualityHD       ImageGenerateParamsQuality = "hd"
	ImageGenerateParamsQualityLow      ImageGenerateParamsQuality = "low"
	ImageGenerateParamsQualityMedium   ImageGenerateParamsQuality = "medium"
	ImageGenerateParamsQualityHigh     ImageGenerateParamsQuality = "high"
	ImageGenerateParamsQualityAuto     ImageGenerateParamsQuality = "auto"
)

// The format in which generated images with `dall-e-2` and `dall-e-3` are
// returned. Must be one of `url` or `b64_json`. URLs are only valid for 60 minutes
// after the image has been generated. This parameter isn't supported for the GPT
// image models, which always return base64-encoded images.
type ImageGenerateParamsResponseFormat string

const (
	ImageGenerateParamsResponseFormatURL     ImageGenerateParamsResponseFormat = "url"
	ImageGenerateParamsResponseFormatB64JSON ImageGenerateParamsResponseFormat = "b64_json"
)

// The size of the generated images. Must be one of `1024x1024`, `1536x1024`
// (landscape), `1024x1536` (portrait), or `auto` (default value) for the GPT image
// models, one of `256x256`, `512x512`, or `1024x1024` for `dall-e-2`, and one of
// `1024x1024`, `1792x1024`, or `1024x1792` for `dall-e-3`.
type ImageGenerateParamsSize string

const (
	ImageGenerateParamsSizeAuto      ImageGenerateParamsSize = "auto"
	ImageGenerateParamsSize1024x1024 ImageGenerateParamsSize = "1024x1024"
	ImageGenerateParamsSize1536x1024 ImageGenerateParamsSize = "1536x1024"
	ImageGenerateParamsSize1024x1536 ImageGenerateParamsSize = "1024x1536"
	ImageGenerateParamsSize256x256   ImageGenerateParamsSize = "256x256"
	ImageGenerateParamsSize512x512   ImageGenerateParamsSize = "512x512"
	ImageGenerateParamsSize1792x1024 ImageGenerateParamsSize = "1792x1024"
	ImageGenerateParamsSize1024x1792 ImageGenerateParamsSize = "1024x1792"
)

// The style of the generated images. This parameter is only supported for
// `dall-e-3`. Must be one of `vivid` or `natural`. Vivid causes the model to lean
// towards generating hyper-real and dramatic images. Natural causes the model to
// produce more natural, less hyper-real looking images.
type ImageGenerateParamsStyle string

const (
	ImageGenerateParamsStyleVivid   ImageGenerateParamsStyle = "vivid"
	ImageGenerateParamsStyleNatural ImageGenerateParamsStyle = "natural"
)