[mob][photos] Create FilterTypeNames enum and enforce that a new entry is added here any time a new class extends HierarchicalSearchFilter

mobile/lib/models/search/hierarchical/album_filter.dart

@@ -13,6 +13,7 @@ class AlbumFilter extends HierarchicalSearchFilter {
     required this.collectionID,
     required this.albumName,
     required this.occurrence,
+    super.filterTypeName = "albumFilter",
     super.matchedUploadedIDs,
   });
 

mobile/lib/models/search/hierarchical/contacts_filter.dart

@@ -10,6 +10,7 @@ class ContactsFilter extends HierarchicalSearchFilter {
   ContactsFilter({
     required this.user,
     required this.occurrence,
+    super.filterTypeName = "contactsFilter",
     super.matchedUploadedIDs,
   });
 

mobile/lib/models/search/hierarchical/face_filter.dart

@@ -15,6 +15,7 @@ class FaceFilter extends HierarchicalSearchFilter {
     required this.faceName,
     required this.faceFile,
     required this.occurrence,
+    super.filterTypeName = "faceFilter",
     super.matchedUploadedIDs,
   }) : assert(
           personId != null || clusterId != null,

mobile/lib/models/search/hierarchical/file_type_filter.dart

@@ -27,6 +27,7 @@ class FileTypeFilter extends HierarchicalSearchFilter {
     required this.fileType,
     required this.typeName,
     required this.occurrence,
+    super.filterTypeName = "fileTypeFilter",
     super.matchedUploadedIDs,
   });
 

mobile/lib/models/search/hierarchical/hierarchical_search_filter.dart

@@ -4,17 +4,34 @@ import "package:photos/models/file/file.dart";
 int kMostRelevantFilter = 10000;
 int kLeastRelevantFilter = -1;
 
+enum FilterTypeNames {
+  albumFilter,
+  contactsFilter,
+  faceFilter,
+  fileTypeFilter,
+  locationFilter,
+  magicFilter,
+  topLevelGenericFilter,
+}
+
 abstract class HierarchicalSearchFilter {
   //These matches should be from list of all files in db and not just all files
   //in gallery since this is used as cache for faster filtering when
   //adding/removing applied filters. An exception where results can be all files
   //in gallery is when the filter is the initial filter (top level) of the
   //gallery.
+  final String filterTypeName;
   final Set<int> matchedUploadedIDs;
   bool isApplied = false;
 
-  HierarchicalSearchFilter({matchedUploadedIDs})
-      : matchedUploadedIDs = matchedUploadedIDs ?? {};
+  HierarchicalSearchFilter({required this.filterTypeName, matchedUploadedIDs})
+      : matchedUploadedIDs = matchedUploadedIDs ?? {},
+        assert(
+          FilterTypeNames.values
+              .map((e) => e.toString().split(".").last)
+              .contains(filterTypeName),
+          "filterTypeName = $filterTypeName is not a valid filter type in FilterTypeNames enum. Please add it to the enum if it's missing or else, cross check spelling ",
+        );
 
   String name();
   IconData? icon();

mobile/lib/models/search/hierarchical/location_filter.dart

@@ -11,6 +11,7 @@ class LocationFilter extends HierarchicalSearchFilter {
   LocationFilter({
     required this.locationTag,
     required this.occurrence,
+    super.filterTypeName = "locationFilter",
     super.matchedUploadedIDs,
   });
 

mobile/lib/models/search/hierarchical/magic_filter.dart

@@ -9,6 +9,7 @@ class MagicFilter extends HierarchicalSearchFilter {
   MagicFilter({
     required this.filterName,
     required this.occurrence,
+    super.filterTypeName = "magicFilter",
     super.matchedUploadedIDs,
   });
 

mobile/lib/models/search/hierarchical/top_level_generic_filter.dart

@@ -19,6 +19,7 @@ class TopLevelGenericFilter extends HierarchicalSearchFilter {
     required this.occurrence,
     required this.filterResultType,
     required super.matchedUploadedIDs,
+    super.filterTypeName = "topLevelGenericFilter",
     this.filterIcon,
   });