import {z} from 'zod'

export type GetApiV3ServicesSupportedDocumentsArgs = {continent?: ('AFRICA' | 'ASIA' | 'EUROPE' | 'NORTH AMERICA' | 'OCEANIA' | 'SOUTH AMERICA') | undefined, country_code?: string | undefined, locale?: ('en-GB' | 'fr-FR' | 'ar-EG') | undefined};

export type GetApiV3ServicesSupportedDocumentsOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const country = z.object({code: z.string().optional(), name: z.string().optional(), continent: z.string().optional()});

export const iDType = z.object({code: z.string().optional(), name: z.string().optional(), has_back: z.boolean().optional()});

export const supportedDocument = z.object({country: country.optional(), id_types: z.array(iDType).optional()});

export const supportedDocumentsResponse = z.object({valid_documents: z.array(supportedDocument)});

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 supported documents for verification
 * 
 * GET /v3/services/supported_documents
 */
export const getApiV3ServicesSupportedDocuments = async (args: GetApiV3ServicesSupportedDocumentsArgs, options?: GetApiV3ServicesSupportedDocumentsOptions) => {
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.continent != null) query.append("continent", String(args.continent))
if (args.country_code != null) query.append("country_code", String(args.country_code))
if (args.locale != null) query.append("locale", String(args.locale))

const url = `${baseUrl.replace(/\/+$/, '')}/v3/services/supported_documents${query.size > 0 ? `?${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(supportedDocumentsResponse, await res.json())
};