add notification mode hook

src/app/hooks/useNotificationMode.ts

@@ -0,0 +1,66 @@
+import { PushRuleAction, PushRuleActionName, TweakName } from 'matrix-js-sdk';
+import { useCallback, useMemo } from 'react';
+
+export enum NotificationMode {
+  OFF = 'OFF',
+  Notify = 'Notify',
+  NotifyLoud = 'NotifyLoud',
+}
+
+type NotificationModeOptions = {
+  soundValue?: string;
+  highlight?: boolean;
+};
+export const getNotificationModeActions = (
+  mode: NotificationMode,
+  options?: NotificationModeOptions
+): PushRuleAction[] => {
+  if (mode === NotificationMode.OFF) return [];
+
+  const actions: PushRuleAction[] = [PushRuleActionName.Notify];
+
+  if (mode === NotificationMode.NotifyLoud) {
+    actions.push({
+      set_tweak: TweakName.Sound,
+      value: options?.soundValue ?? 'default',
+    });
+  }
+
+  if (options?.highlight) {
+    actions.push({
+      set_tweak: TweakName.Highlight,
+      value: true,
+    });
+  }
+
+  return actions;
+};
+
+export type GetNotificationModeCallback = (mode: NotificationMode) => PushRuleAction[];
+export const useNotificationModeActions = (
+  options?: NotificationModeOptions
+): GetNotificationModeCallback => {
+  const getAction: GetNotificationModeCallback = useCallback(
+    (mode) => getNotificationModeActions(mode, options),
+    [options]
+  );
+
+  return getAction;
+};
+
+export const useNotificationActionsMode = (actions: PushRuleAction[]): NotificationMode => {
+  const mode: NotificationMode = useMemo(() => {
+    const soundTweak = actions.find(
+      (action) => typeof action === 'object' && action.set_tweak === TweakName.Sound
+    );
+    const notify = actions.find(
+      (action) => typeof action === 'string' && action === PushRuleActionName.Notify
+    );
+
+    if (notify && soundTweak) return NotificationMode.NotifyLoud;
+    if (notify) return NotificationMode.Notify;
+    return NotificationMode.OFF;
+  }, [actions]);
+
+  return mode;
+};