import {z} from 'zod'

export type CreateApiV3CompareArgs = {'SmileID-Source-SDK'?: string | undefined, 'SmileID-Source-SDK-Version'?: string | undefined, 'SmileID-Timestamp'?: string | undefined, 'SmileID-Request-Signature'?: string | undefined, 'User-ID'?: string | undefined, body: BodyInit};

export type CreateApiV3CompareOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const acceptedResponse = z.object({status: z.literal("accepted"), message: z.string(), job_id: z.string(), user_id: z.string(), created_at: z.string()});

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
};

/**
 * Submit smart selfie compare
 * 
 * POST /v3/compare
 */
export const createApiV3Compare = async (args: CreateApiV3CompareArgs, options?: CreateApiV3CompareOptions) => {
const {baseUrl = "https://testapi.smileidentity.com", fetch: fetchFn = fetch} = options ?? {}

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

if (args['SmileID-Source-SDK'] != null) headers.set("SmileID-Source-SDK", String(args['SmileID-Source-SDK']))
if (args['SmileID-Source-SDK-Version'] != null) headers.set("SmileID-Source-SDK-Version", String(args['SmileID-Source-SDK-Version']))
if (args['SmileID-Timestamp'] != null) headers.set("SmileID-Timestamp", String(args['SmileID-Timestamp']))
if (args['SmileID-Request-Signature'] != null) headers.set("SmileID-Request-Signature", String(args['SmileID-Request-Signature']))
if (args['User-ID'] != null) headers.set("User-ID", String(args['User-ID']))

const url = `${baseUrl.replace(/\/+$/, '')}/v3/compare${query.size > 0 ? `?${query}` : ''}`

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

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

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