import {z} from 'zod'

export type CreateApiCompatV2MlGetNutritionFromTextArgs = {body: {text: string}};

export type CreateApiCompatV2MlGetNutritionFromTextOptions = {baseUrl?: string | undefined, Authorization?: string | undefined, fetch?: typeof fetch | undefined};

export const createApiCompatV2MlGetNutritionFromTextResponse = z.object({servingSize: z.string().nullable(), calories: z.number().nullable(), totalFat: z.number().nullable(), saturatedFat: z.number().nullable(), transFat: z.number().nullable(), polyunsaturatedFat: z.number().nullable(), monounsaturatedFat: z.number().nullable(), cholesterol: z.number().nullable(), sodium: z.number().nullable(), totalCarbs: z.number().nullable(), dietaryFiber: z.number().nullable(), totalSugars: z.number().nullable(), addedSugars: z.number().nullable(), protein: z.number().nullable(), vitaminD: z.number().nullable(), calcium: z.number().nullable(), iron: z.number().nullable(), potassium: z.number().nullable()});

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * Extract nutrition information from a block of text
 * 
 * POST /compat/v2/ml/getNutritionFromText
 */
export const createApiCompatV2MlGetNutritionFromText = async (args: CreateApiCompatV2MlGetNutritionFromTextArgs, options?: CreateApiCompatV2MlGetNutritionFromTextOptions) => {
const {baseUrl = "https://api.recipesage.com", fetch: fetchFn = fetch, Authorization} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('content-type', "application/json")
headers.set('accept', "application/json")

if (Authorization !== undefined) headers.set('authorization', `Bearer ${Authorization}`)

const url = `${baseUrl.replace(/\/+$/, '')}/compat/v2/ml/getNutritionFromText${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(createApiCompatV2MlGetNutritionFromTextResponse, await res.json())
};