2 files changed, 188 insertions, 0 deletions
diff --git a/packages/merchant-backoffice-ui/src/hooks/backend.ts b/packages/merchant-backoffice-ui/src/hooks/backend.ts
index a0639a4a0..3f3db2fa1 100644
--- a/packages/merchant-backoffice-ui/src/hooks/backend.ts
+++ b/packages/merchant-backoffice-ui/src/hooks/backend.ts
@@ -115,6 +115,11 @@ interface useBackendInstanceRequestType {
     position?: string,
     delta?: number,
   ) => Promise<HttpResponseOk<T>>;
+  webhookFetcher: <T>(
+    path: string,
+    position?: string,
+    delta?: number,
+  ) => Promise<HttpResponseOk<T>>;
 }
 interface useBackendBaseRequestType {
   request: <T>(
@@ -274,6 +279,23 @@ export function useBackendInstanceRequest(): useBackendInstanceRequestType {
     [backend, token],
   );
 
+  const webhookFetcher = useCallback(
+    function webhookFetcherImpl<T>(
+      path: string,
+      position?: string,
+      delta?: number,
+    ): Promise<HttpResponseOk<T>> {
+      const params: any = {};
+      if (delta !== undefined) {
+        params.limit = delta;
+      }
+      if (position !== undefined) params.offset = position;
+
+      return requestHandler<T>(backend, path, { params, token });
+    },
+    [backend, token],
+  );
+
   return {
     request,
     fetcher,
@@ -283,5 +305,6 @@ export function useBackendInstanceRequest(): useBackendInstanceRequestType {
     tipsDetailFetcher,
     transferFetcher,
     templateFetcher,
+    webhookFetcher,
   };
 }
diff --git a/packages/merchant-backoffice-ui/src/hooks/webhooks.ts b/packages/merchant-backoffice-ui/src/hooks/webhooks.ts
new file mode 100644
index 000000000..9f196cefa
--- /dev/null
+++ b/packages/merchant-backoffice-ui/src/hooks/webhooks.ts
@@ -0,0 +1,165 @@
+/*
+ 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 { MerchantBackend } from "../declaration.js";
+import { useMatchMutate, useBackendInstanceRequest } from "./backend.js";
+import useSWR from "swr";
+import { MAX_RESULT_SIZE, PAGE_SIZE } from "../utils/constants.js";
+import { useEffect, useState } from "preact/hooks";
+import {
+  HttpError,
+  HttpResponse,
+  HttpResponseOk,
+  HttpResponsePaginated,
+} from "../utils/request.js";
+
+export function useWebhookAPI(): WebhookAPI {
+  const mutateAll = useMatchMutate();
+  const { request } = useBackendInstanceRequest();
+
+  const createWebhook = async (
+    data: MerchantBackend.Webhooks.WebhookAddDetails,
+  ): Promise<HttpResponseOk<void>> => {
+    const res = await request<void>(`/private/webhooks`, {
+      method: "POST",
+      data,
+    });
+    await mutateAll(/.*private\/webhooks.*/);
+    return res;
+  };
+
+  const updateWebhook = async (
+    webhookId: string,
+    data: MerchantBackend.Webhooks.WebhookPatchDetails,
+  ): Promise<HttpResponseOk<void>> => {
+    const res = await request<void>(`/private/webhooks/${webhookId}`, {
+      method: "PATCH",
+      data,
+    });
+    await mutateAll(/.*private\/webhooks.*/);
+    return res;
+  };
+
+  const deleteWebhook = async (
+    webhookId: string,
+  ): Promise<HttpResponseOk<void>> => {
+    const res = await request<void>(`/private/webhooks/${webhookId}`, {
+      method: "DELETE",
+    });
+    await mutateAll(/.*private\/webhooks.*/);
+    return res;
+  };
+
+  return { createWebhook, updateWebhook, deleteWebhook };
+}
+
+export interface WebhookAPI {
+  createWebhook: (
+    data: MerchantBackend.Webhooks.WebhookAddDetails,
+  ) => Promise<HttpResponseOk<void>>;
+  updateWebhook: (
+    id: string,
+    data: MerchantBackend.Webhooks.WebhookPatchDetails,
+  ) => Promise<HttpResponseOk<void>>;
+  deleteWebhook: (id: string) => Promise<HttpResponseOk<void>>;
+}
+
+export interface InstanceWebhookFilter {
+  //FIXME: add filter to the webhook list
+  position?: string;
+}
+
+export function useInstanceWebhooks(
+  args?: InstanceWebhookFilter,
+  updatePosition?: (id: string) => void,
+): HttpResponsePaginated<MerchantBackend.Webhooks.WebhookSummaryResponse> {
+  const { webhookFetcher } = useBackendInstanceRequest();
+
+  const [pageAfter, setPageAfter] = useState(1);
+
+  const totalAfter = pageAfter * PAGE_SIZE;
+
+  const {
+    data: afterData,
+    error: afterError,
+    isValidating: loadingAfter,
+  } = useSWR<
+    HttpResponseOk<MerchantBackend.Webhooks.WebhookSummaryResponse>,
+    HttpError
+  >([`/private/webhooks`, args?.position, -totalAfter], webhookFetcher);
+
+  const [lastAfter, setLastAfter] = useState<
+    HttpResponse<MerchantBackend.Webhooks.WebhookSummaryResponse>
+  >({ loading: true });
+  useEffect(() => {
+    if (afterData) setLastAfter(afterData);
+  }, [afterData]);
+
+  if (afterError) return afterError;
+
+  const isReachingEnd =
+    afterData && afterData.data.webhooks.length < totalAfter;
+  const isReachingStart = false;
+
+  const pagination = {
+    isReachingEnd,
+    isReachingStart,
+    loadMore: () => {
+      if (!afterData || isReachingEnd) return;
+      if (afterData.data.webhooks.length < MAX_RESULT_SIZE) {
+        setPageAfter(pageAfter + 1);
+      } else {
+        const from = `${afterData.data.webhooks[afterData.data.webhooks.length - 1]
+          .webhook_id
+          }`;
+        if (from && updatePosition) updatePosition(from);
+      }
+    },
+    loadMorePrev: () => {
+      return
+    },
+  };
+
+  const webhooks = !afterData ? [] : (afterData || lastAfter).data.webhooks;
+
+  if (loadingAfter)
+    return { loading: true, data: { webhooks } };
+  if (afterData) {
+    return { ok: true, data: { webhooks }, ...pagination };
+  }
+  return { loading: true };
+}
+
+export function useWebhookDetails(
+  webhookId: string,
+): HttpResponse<MerchantBackend.Webhooks.WebhookDetails> {
+  const { webhookFetcher } = useBackendInstanceRequest();
+
+  const { data, error, isValidating } = useSWR<
+    HttpResponseOk<MerchantBackend.Webhooks.WebhookDetails>,
+    HttpError
+  >([`/private/webhooks/${webhookId}`], webhookFetcher, {
+    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;
+  return { loading: true };
+}