/*
 This file is part of GNU Taler
 (C) 2021-2024 Taler Systems S.A.

 GNU Taler is free software; you can redistribute it and/or modify it under the
 terms of the GNU General Public License as published by the Free Software
 Foundation; either version 3, or (at your option) any later version.

 GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
 A PARTICULAR PURPOSE.  See the GNU General Public License for more details.

 You should have received a copy of the GNU General Public License along with
 GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
 */
import {
  HttpResponse,
  HttpResponseOk,
  RequestError
} from "@gnu-taler/web-util/browser";
import {
  useBackendBaseRequest,
  useBackendInstanceRequest
} from "./backend.js";

// FIX default import https://github.com/microsoft/TypeScript/issues/49189
import { TalerErrorDetail, TalerMerchantApi } from "@gnu-taler/taler-util";
import _useSWR, { SWRHook } from "swr";
const useSWR = _useSWR as unknown as SWRHook;


export function useInstanceDetails(): HttpResponse<
  TalerMerchantApi.QueryInstancesResponse,
  TalerErrorDetail
> {
  const { fetcher } = useBackendInstanceRequest();

  const { data, error, isValidating } = useSWR<
    HttpResponseOk<TalerMerchantApi.QueryInstancesResponse>,
    RequestError<TalerErrorDetail>
  >([`/private/`], fetcher, {
    refreshInterval: 0,
    refreshWhenHidden: false,
    revalidateOnFocus: false,
    revalidateOnReconnect: false,
    refreshWhenOffline: false,
    revalidateIfStale: false,
    errorRetryCount: 0,
    errorRetryInterval: 1,
    shouldRetryOnError: false,
  });

  if (isValidating) return { loading: true, data: data?.data };
  if (data) return data;
  if (error) return error.cause;
  return { loading: true };
}

type KYCStatus =
  | { type: "ok" }
  | { type: "redirect"; status: TalerMerchantApi.AccountKycRedirects };

export function useInstanceKYCDetails(): HttpResponse<
  KYCStatus,
  TalerErrorDetail
> {
  const { fetcher } = useBackendInstanceRequest();

  const { data, error } = useSWR<
    HttpResponseOk<TalerMerchantApi.AccountKycRedirects>,
    RequestError<TalerErrorDetail>
  >([`/private/kyc`], fetcher, {
    refreshInterval: 60 * 1000,
    refreshWhenHidden: false,
    revalidateOnFocus: false,
    revalidateIfStale: false,
    revalidateOnMount: false,
    revalidateOnReconnect: false,
    refreshWhenOffline: false,
    errorRetryCount: 0,
    errorRetryInterval: 1,
    shouldRetryOnError: false,
  });

  if (data) {
    if (data.info?.status === 202)
      return { ok: true, data: { type: "redirect", status: data.data } };
    return { ok: true, data: { type: "ok" } };
  }
  if (error) return error.cause;
  return { loading: true };
}

export function useManagedInstanceDetails(
  instanceId: string,
): HttpResponse<
  TalerMerchantApi.QueryInstancesResponse,
  TalerErrorDetail
> {
  const { request } = useBackendBaseRequest();

  const { data, error, isValidating } = useSWR<
    HttpResponseOk<TalerMerchantApi.QueryInstancesResponse>,
    RequestError<TalerErrorDetail>
  >([`/management/instances/${instanceId}`], request, {
    refreshInterval: 0,
    refreshWhenHidden: false,
    revalidateOnFocus: false,
    revalidateOnReconnect: false,
    refreshWhenOffline: false,
    errorRetryCount: 0,
    errorRetryInterval: 1,
    shouldRetryOnError: false,
  });

  if (isValidating) return { loading: true, data: data?.data };
  if (data) return data;
  if (error) return error.cause;
  return { loading: true };
}

export function useBackendInstances(): HttpResponse<
  TalerMerchantApi.InstancesResponse,
  TalerErrorDetail
> {
  const { request } = useBackendBaseRequest();

  const { data, error, isValidating } = useSWR<
    HttpResponseOk<TalerMerchantApi.InstancesResponse>,
    RequestError<TalerErrorDetail>
  >(["/management/instances"], request);

  if (isValidating) return { loading: true, data: data?.data };
  if (data) return data;
  if (error) return error.cause;
  return { loading: true };
}