1 files changed, 56 insertions, 0 deletions
diff --git a/packages/auditor-backoffice-ui/src/hooks/notifications.ts b/packages/auditor-backoffice-ui/src/hooks/notifications.ts
new file mode 100644
index 000000000..133ddd80b
--- /dev/null
+++ b/packages/auditor-backoffice-ui/src/hooks/notifications.ts
@@ -0,0 +1,56 @@
+/*
+ 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/>
+ */
+
+/**
+ *
+ * @author Sebastian Javier Marchano (sebasjm)
+ */
+
+import { useState } from "preact/hooks";
+import { Notification } from "../utils/types.js";
+
+interface Result {
+  notifications: Notification[];
+  pushNotification: (n: Notification) => void;
+  removeNotification: (n: Notification) => void;
+}
+
+type NotificationWithDate = Notification & { since: Date };
+
+export function useNotifications(
+  initial: Notification[] = [],
+  timeout = 3000,
+): Result {
+  const [notifications, setNotifications] = useState<NotificationWithDate[]>(
+    initial.map((i) => ({ ...i, since: new Date() })),
+  );
+
+  const pushNotification = (n: Notification): void => {
+    const entry = { ...n, since: new Date() };
+    setNotifications((ns) => [...ns, entry]);
+    if (n.type !== "ERROR")
+      setTimeout(() => {
+        setNotifications((ns) => ns.filter((x) => x.since !== entry.since));
+      }, timeout);
+  };
+
+  const removeNotification = (notif: Notification) => {
+    setNotifications((ns: NotificationWithDate[]) =>
+      ns.filter((n) => n !== notif),
+    );
+  };
+  return { notifications, pushNotification, removeNotification };
+}