/*
 This file is part of GNU Taler
 (C) 2021-2023 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 { MerchantBackend } from "../declaration.js";
import { useBackendInstanceRequest, useMatchMutate } from "./backend.js";

// FIX default import https://github.com/microsoft/TypeScript/issues/49189
import _useSWR, { SWRHook, useSWRConfig } from "swr";
const useSWR = _useSWR as unknown as SWRHook;

export interface TokenFamilyAPI {
  createTokenFamily: (
    data: MerchantBackend.TokenFamilies.TokenFamilyAddDetail,
  ) => Promise<void>;
  updateTokenFamily: (
    slug: string,
    data: MerchantBackend.TokenFamilies.TokenFamilyPatchDetail,
  ) => Promise<void>;
  deleteTokenFamily: (slug: string) => Promise<void>;
}

export function useTokenFamilyAPI(): TokenFamilyAPI {
  const mutateAll = useMatchMutate();
  const { mutate } = useSWRConfig();

  const { request } = useBackendInstanceRequest();

  const createTokenFamily = async (
    data: MerchantBackend.TokenFamilies.TokenFamilyAddDetail,
  ): Promise<void> => {
    const res = await request(`/private/tokenfamilies`, {
      method: "POST",
      data,
    });

    return await mutateAll(/.*"\/private\/tokenfamilies.*/);
  };

  const updateTokenFamily = async (
    tokenFamilySlug: string,
    data: MerchantBackend.TokenFamilies.TokenFamilyPatchDetail,
  ): Promise<void> => {
    const r = await request(`/private/tokenfamilies/${tokenFamilySlug}`, {
      method: "PATCH",
      data,
    });

    return await mutateAll(/.*"\/private\/tokenfamilies.*/);
  };

  const deleteTokenFamily = async (tokenFamilySlug: string): Promise<void> => {
    await request(`/private/tokenfamilies/${tokenFamilySlug}`, {
      method: "DELETE",
    });
    await mutate([`/private/tokenfamilies`]);
  };

  return { createTokenFamily, updateTokenFamily, deleteTokenFamily };
}

export function useInstanceTokenFamilies(): HttpResponse<
  (MerchantBackend.TokenFamilies.TokenFamilyEntry)[],
  MerchantBackend.ErrorDetail
> {
  const { fetcher, multiFetcher } = useBackendInstanceRequest();

  const { data: list, error: listError } = useSWR<
    HttpResponseOk<MerchantBackend.TokenFamilies.TokenFamilySummaryResponse>,
    RequestError<MerchantBackend.ErrorDetail>
  >([`/private/tokenfamilies`], fetcher, {
    refreshInterval: 0,
    refreshWhenHidden: false,
    revalidateOnFocus: false,
    revalidateOnReconnect: false,
    refreshWhenOffline: false,
  });

  if (listError) return listError.cause;

  if (list) {
    return { ok: true, data: list.data.token_families };
  }
  return { loading: true };
}

export function useTokenFamilyDetails(
  tokenFamilySlug: string,
): HttpResponse<
  MerchantBackend.TokenFamilies.TokenFamilyDetail,
  MerchantBackend.ErrorDetail
> {
  const { fetcher } = useBackendInstanceRequest();

  const { data, error, isValidating } = useSWR<
    HttpResponseOk<MerchantBackend.TokenFamilies.TokenFamilyDetail>,
    RequestError<MerchantBackend.ErrorDetail>
  >([`/private/tokenfamilies/${tokenFamilySlug}`], fetcher, {
    refreshInterval: 0,
    refreshWhenHidden: false,
    revalidateOnFocus: false,
    revalidateOnReconnect: false,
    refreshWhenOffline: false,
  });

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