import {z} from 'zod'

export type GetApiV1StylesBasicOptions = {baseUrl?: string | undefined, auth0?: string | undefined, fetch?: typeof fetch | undefined};

export const transformModel = z.enum(["recraftv2", "recraftv2_raster", "recraftv2_vector", "recraftv3", "recraftv3_raster", "recraftv3_vector", "recraftv4", "recraftv4_raster", "recraftv4_vector", "recraftv4_pro", "recraftv4_pro_raster", "recraftv4_pro_vector", "recraftv4_1", "recraftv4_1_raster", "recraftv4_1_vector", "recraftv4_1_pro", "recraftv4_1_pro_raster", "recraftv4_1_pro_vector", "recraftv4_1_utility", "recraftv4_1_utility_raster", "recraftv4_1_utility_vector", "recraftv4_1_utility_pro", "recraftv4_1_utility_pro_raster", "recraftv4_1_utility_pro_vector", "recraftv4_styles", "recraftv4_styles_raster", "recraftv4_styles_vector", "recraftv4_styles_pro", "recraftv4_styles_pro_raster", "recraftv4_styles_pro_vector", "recraftv4_1_flash", "recraftv4_1_flash_raster"]);

export const basicStyle = z.object({model: transformModel, style: z.string(), style_id: z.string()});

export const listBasicStylesResponse = z.object({styles: z.array(basicStyle)});

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
};

/**
 * List Basic Styles
 * 
 * GET /v1/styles/basic
 */
export const getApiV1StylesBasic = async (options?: GetApiV1StylesBasicOptions) => {
const {baseUrl = "https://external.api.recraft.ai", fetch: fetchFn = fetch, auth0} = options ?? {}

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

if (auth0 !== undefined) headers.set('authorization', `Bearer ${auth0}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/styles/basic${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

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

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