fix(mobile): search page issues (#15804)

* fix: don't repeat search

* fix: show snackbar for no result

* fix: do not search on empty filter

* chore: syling

mobile/assets/i18n/en-US.json

@@ -1,4 +1,6 @@
 {
+  "search_no_result": "No results found, try a different search term or combination",
+  "search_no_more_result": "No more results",
   "action_common_back": "Back",
   "action_common_cancel": "Cancel",
   "action_common_clear": "Clear",

mobile/lib/interfaces/person_api.interface.dart

@@ -1,3 +1,6 @@
+// ignore_for_file: public_member_api_docs, sort_constructors_first
+import 'dart:convert';
+
 abstract interface class IPersonApiRepository {
   Future<List<Person>> getAll();
   Future<Person> update(String id, {String? name});
@@ -6,10 +9,10 @@ abstract interface class IPersonApiRepository {
 class Person {
   Person({
     required this.id,
+    this.birthDate,
     required this.isHidden,
     required this.name,
     required this.thumbnailPath,
-    this.birthDate,
     this.updatedAt,
   });
 
@@ -19,4 +22,80 @@ class Person {
   final String name;
   final String thumbnailPath;
   final DateTime? updatedAt;
+
+  @override
+  String toString() {
+    return 'Person(id: $id, birthDate: $birthDate, isHidden: $isHidden, name: $name, thumbnailPath: $thumbnailPath, updatedAt: $updatedAt)';
+  }
+
+  Person copyWith({
+    String? id,
+    DateTime? birthDate,
+    bool? isHidden,
+    String? name,
+    String? thumbnailPath,
+    DateTime? updatedAt,
+  }) {
+    return Person(
+      id: id ?? this.id,
+      birthDate: birthDate ?? this.birthDate,
+      isHidden: isHidden ?? this.isHidden,
+      name: name ?? this.name,
+      thumbnailPath: thumbnailPath ?? this.thumbnailPath,
+      updatedAt: updatedAt ?? this.updatedAt,
+    );
+  }
+
+  Map<String, dynamic> toMap() {
+    return <String, dynamic>{
+      'id': id,
+      'birthDate': birthDate?.millisecondsSinceEpoch,
+      'isHidden': isHidden,
+      'name': name,
+      'thumbnailPath': thumbnailPath,
+      'updatedAt': updatedAt?.millisecondsSinceEpoch,
+    };
+  }
+
+  factory Person.fromMap(Map<String, dynamic> map) {
+    return Person(
+      id: map['id'] as String,
+      birthDate: map['birthDate'] != null
+          ? DateTime.fromMillisecondsSinceEpoch(map['birthDate'] as int)
+          : null,
+      isHidden: map['isHidden'] as bool,
+      name: map['name'] as String,
+      thumbnailPath: map['thumbnailPath'] as String,
+      updatedAt: map['updatedAt'] != null
+          ? DateTime.fromMillisecondsSinceEpoch(map['updatedAt'] as int)
+          : null,
+    );
+  }
+
+  String toJson() => json.encode(toMap());
+
+  factory Person.fromJson(String source) =>
+      Person.fromMap(json.decode(source) as Map<String, dynamic>);
+
+  @override
+  bool operator ==(covariant Person other) {
+    if (identical(this, other)) return true;
+
+    return other.id == id &&
+        other.birthDate == birthDate &&
+        other.isHidden == isHidden &&
+        other.name == name &&
+        other.thumbnailPath == thumbnailPath &&
+        other.updatedAt == updatedAt;
+  }
+
+  @override
+  int get hashCode {
+    return id.hashCode ^
+        birthDate.hashCode ^
+        isHidden.hashCode ^
+        name.hashCode ^
+        thumbnailPath.hashCode ^
+        updatedAt.hashCode;
+  }
 }

mobile/lib/models/search/search_filter.model.dart

@@ -255,6 +255,23 @@ class SearchFilter {
     required this.mediaType,
   });
 
+  bool get isEmpty {
+    return (context == null || (context != null && context!.isEmpty)) &&
+        (filename == null || (filename!.isEmpty)) &&
+        people.isEmpty &&
+        location.country == null &&
+        location.state == null &&
+        location.city == null &&
+        camera.make == null &&
+        camera.model == null &&
+        date.takenBefore == null &&
+        date.takenAfter == null &&
+        display.isNotInAlbum == false &&
+        display.isArchive == false &&
+        display.isFavorite == false &&
+        mediaType == AssetType.other;
+  }
+
   SearchFilter copyWith({
     String? context,
     String? filename,

mobile/lib/pages/search/search.page.dart

@@ -49,7 +49,7 @@ class SearchPage extends HookConsumerWidget {
       ),
     );
 
-    final previousFilter = useState(filter.value);
+    final previousFilter = useState<SearchFilter?>(null);
 
     final peopleCurrentFilterWidget = useState<Widget?>(null);
     final dateRangeCurrentFilterWidget = useState<Widget?>(null);
@@ -60,19 +60,55 @@ class SearchPage extends HookConsumerWidget {
 
     final isSearching = useState(false);
 
+    SnackBar searchInfoSnackBar(String message) {
+      return SnackBar(
+        content: Text(
+          message,
+          style: context.textTheme.labelLarge,
+        ),
+        showCloseIcon: true,
+        behavior: SnackBarBehavior.fixed,
+        closeIconColor: context.colorScheme.onSurface,
+      );
+    }
+
     search() async {
-      if (prefilter == null && filter.value == previousFilter.value) return;
+      if (filter.value.isEmpty) {
+        return;
+      }
+
+      if (prefilter == null && filter.value == previousFilter.value) {
+        return;
+      }
 
       isSearching.value = true;
       ref.watch(paginatedSearchProvider.notifier).clear();
-      await ref.watch(paginatedSearchProvider.notifier).search(filter.value);
+      final hasResult = await ref
+          .watch(paginatedSearchProvider.notifier)
+          .search(filter.value);
+
+      if (!hasResult) {
+        context.showSnackBar(
+          searchInfoSnackBar('search_no_result'.tr()),
+        );
+      }
+
       previousFilter.value = filter.value;
       isSearching.value = false;
     }
 
     loadMoreSearchResult() async {
       isSearching.value = true;
-      await ref.watch(paginatedSearchProvider.notifier).search(filter.value);
+      final hasResult = await ref
+          .watch(paginatedSearchProvider.notifier)
+          .search(filter.value);
+
+      if (!hasResult) {
+        context.showSnackBar(
+          searchInfoSnackBar('search_no_more_result'.tr()),
+        );
+      }
+
       isSearching.value = false;
     }
 
@@ -596,10 +632,15 @@ class SearchPage extends HookConsumerWidget {
               ),
             ),
           ),
-          SearchResultGrid(
-            onScrollEnd: loadMoreSearchResult,
-            isSearching: isSearching.value,
-          ),
+          if (isSearching.value)
+            const Expanded(
+              child: Center(child: CircularProgressIndicator.adaptive()),
+            )
+          else
+            SearchResultGrid(
+              onScrollEnd: loadMoreSearchResult,
+              isSearching: isSearching.value,
+            ),
         ],
       ),
     );

mobile/lib/providers/search/paginated_search.provider.dart

@@ -19,17 +19,23 @@ class PaginatedSearchNotifier extends StateNotifier<SearchResult> {
   PaginatedSearchNotifier(this._searchService)
       : super(SearchResult(assets: [], nextPage: 1));
 
-  search(SearchFilter filter) async {
-    if (state.nextPage == null) return;
+  Future<bool> search(SearchFilter filter) async {
+    if (state.nextPage == null) {
+      return false;
+    }
 
     final result = await _searchService.search(filter, state.nextPage!);
 
-    if (result == null) return;
+    if (result == null) {
+      return false;
+    }
 
     state = SearchResult(
       assets: [...state.assets, ...result.assets],
       nextPage: result.nextPage,
     );
+
+    return true;
   }
 
   clear() {

mobile/lib/services/search.service.dart

@@ -101,7 +101,7 @@ class SearchService {
         );
       }
 
-      if (response == null) {
+      if (response == null || response.assets.items.isEmpty) {
         return null;
       }
 

mobile/lib/widgets/search/search_filter/people_picker.dart

@@ -20,7 +20,7 @@ class PeoplePicker extends HookConsumerWidget {
   @override
   Widget build(BuildContext context, WidgetRef ref) {
     final formFocus = useFocusNode();
-    final imageSize = 75.0;
+    final imageSize = 60.0;
     final searchQuery = useState('');
     final people = ref.watch(getAllPeopleProvider);
     final headers = ApiService.getRequestHeaders();