import {z} from 'zod'

export type GetApiSessionsTransactionIdArgs = {'transaction-id': string};

export type GetApiSessionsTransactionIdOptions = {baseUrl?: string | undefined, basicAuth?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const product = z.enum(["xs2a_verify", "xs2a_risk", "xs2a_pay", "xs2a_api"]);

export const wizardSessionObject = z.object({id: z.string().optional(), transaction: z.string().optional(), wizard_session_key: z.string().optional(), product: product.optional(), parameters: z.object({}).optional(), last_error: z.enum(["accounts_failed", "age_verification_not_confirmed", "authorized_person", "balance_failed", "bank_code_unknown", "client_aborted", "client_not_started", "consent_invalid", "country_id_invalid", "forced_transport_disabled", "init_failed", "login_blacklisted", "login_failed", "login_next_failed", "max_login_tries", "max_tan_tries", "no_compatible_accounts", "no_transports_found", "pinned_holder_not_found", "pinned_iban_not_found", "pp_not_checked", "session_expired", "security_setting_rejection", "standing_orders_failed", "tech_error", "testmode_error", "token_mismatch", "transaction_failed", "turnovers_failed", "tx_rx_iban_equal", "validation_failed", "wrong_tan"]).optional(), testmode: z.boolean().optional(), finished: z.boolean().optional(), current_step: z.enum(["WizardLoginStep", "WizardLoginNextStep", "WizardAccountsStep", "WizardDataStep", "WizardTanStep", "WizardScaStep", "WizardIrpaStep", "WizardAutoSubmitStep", "WizardFinishStep", "WizardStartStep", "WizardShowcaseStep", "WizardPreAccountsStep", "WizardPreDataStep", "WizardPreLoginStep", "WizardOauthRedirect", "WizardOauthRedirectNok", "RiskUpload"]).optional(), created_at: z.string().optional(), object: z.string().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
};

/**
 * This will return a wizard_session object.
 * 
 * GET /sessions/{transaction-id}
 */
export const getApiSessionsTransactionId = async (args: GetApiSessionsTransactionIdArgs, options?: GetApiSessionsTransactionIdOptions) => {
const {baseUrl = "https://api.xs2a.com/v1", fetch: fetchFn = fetch, basicAuth} = options ?? {}

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

if (basicAuth !== undefined) headers.set('authorization', `Basic ${btoa(`${basicAuth.username}:${basicAuth.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/sessions/${encodeURIComponent(String(args['transaction-id']))}${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(wizardSessionObject, await res.json())
};