import {z} from 'zod'

export type KeyIdentifier = {key?: string | undefined, value?: string | undefined};

export type BiometricDemand = {securityLevel?: ('HIGH' | 'MEDIUM' | 'LOW') | undefined, biometricFields?: (Array<'FACE' | 'FINGERPRINT' | 'FULL_NAME' | 'DATE_OF_BIRTH' | 'PERSONAL_EMAIL' | 'WORK_EMAIL' | 'OTHER_EMAIL' | 'ADDRESS' | 'COUNTRY' | 'GENDER' | 'NATIONALITY' | 'MOBILE_NUMBER'>) | undefined, otc?: number | undefined, notificationEndpoint?: string | undefined, organizationName?: string | undefined, callback?: string | undefined, userEmail?: string | undefined, keyIdentifier?: KeyIdentifier | undefined, qualityThreshold?: number | undefined};

export type CreateRequisitionRequest = {data?: BiometricDemand | undefined};

export type CreateApiCheckidArgs = {body: CreateRequisitionRequest};

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

export const gUID = z.object({guid: z.string().optional()});

export const createRequisitionResponse = z.object({transactionID: gUID.optional(), dynamicLink: z.string().optional(), status: z.enum(["AWAITING_DATA_COLLECTION", "DATA_COLLECTED", "FINISHED", "DENIED", "ERROR"]).optional()});

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
};

/**
 * createUserDemand
 * 
 * POST /checkid
 */
export const createApiCheckid = async (args: CreateApiCheckidArgs, options?: CreateApiCheckidOptions) => {
const {baseUrl = "http://<ip>:8085/gbds/v2", fetch: fetchFn = fetch} = options ?? {}

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

const url = `${baseUrl.replace(/\/+$/, '')}/checkid${query.size > 0 ? `?${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(createRequisitionResponse, await res.json())
};