const LOG_VALUE_MAX_CHARS = 256;

const MOCK_OPENAI_PROVIDER_ID = "mock-openai";

const OPENAI_OUTPUT_FORMATS = ["png", "jpeg", "webp"] as const;

const OPENAI_BACKGROUNDS = ["transparent", "opaque", "auto"] as const;

const OPENAI_QUALITIES = ["low", "medium", "high", "auto"] as const;

const OPENAI_IMAGE_MODELS = [

DEFAULT_OPENAI_IMAGE_MODEL,

req: Parameters<ImageGenerationProvider["generateImage"]>[0],

): void {

const openai = req.providerOptions?.openai;

const background = openai?.background ?? req.background;

const entries: Record<string, unknown> = {

...(req.quality !== undefined ? { quality: req.quality } : {}),

...(req.outputFormat !== undefined ? { output_format: req.outputFormat } : {}),

...(openai?.background !== undefined ? { background: openai.background } : {}),

...(background !== undefined ? { background } : {}),

...(openai?.moderation !== undefined ? { moderation: openai.moderation } : {}),

...(openai?.outputCompression !== undefined

? { output_compression: openai.outputCompression }

if (

options?.allowTransparentDefaultReroute === true &&

model === DEFAULT_OPENAI_IMAGE_MODEL &&

req.providerOptions?.openai?.background === "transparent"

(req.providerOptions?.openai?.background ?? req.background) === "transparent"

) {

return OPENAI_TRANSPARENT_BACKGROUND_IMAGE_MODEL;

}

output: {

formats: [...OPENAI_OUTPUT_FORMATS],

qualities: [...OPENAI_QUALITIES],

backgrounds: [...OPENAI_BACKGROUNDS],

},

},

generateImage: params.generateImage,

const size = req.size ?? DEFAULT_SIZE;

const timeoutMs = resolveOpenAIImageTimeoutMs(req.timeoutMs);

const openai = req.providerOptions?.openai;

const background = openai?.background ?? req.background;

headers.set("Content-Type", "application/json");

const content: Array<Record<string, unknown>> = [

{ type: "input_text", text: req.prompt },

size,

...(req.quality !== undefined ? { quality: req.quality } : {}),

...(req.outputFormat !== undefined ? { output_format: req.outputFormat } : {}),

...(openai?.background !== undefined ? { background: openai.background } : {}),

...(background !== undefined ? { background } : {}),

...(openai?.outputCompression !== undefined

? { output_compression: openai.outputCompression }

: {}),