Add permissions.ts utility file

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

src/utilities/index.ts

@@ -0,0 +1 @@
+export { isPermissionForPath, clearPermissions } from './permissions';

src/utilities/permissions.ts

@@ -0,0 +1,19 @@
+import {
+  getPersistedUriPermissions,
+  releasePersistableUriPermission,
+} from 'react-native-scoped-storage';
+
+const isPermissionForPath = (permission: string, path: string) => {
+  return path.startsWith(permission + '/');
+};
+
+const clearPermissions = async (excepts: string[] = []) => {
+  const permissions = await getPersistedUriPermissions();
+  permissions.forEach(permission => {
+    if (!excepts.some(except => isPermissionForPath(permission, except))) {
+      void releasePersistableUriPermission(permission);
+    }
+  });
+};
+
+export { isPermissionForPath, clearPermissions };