⚗️ Testing out new own pagination utils

lib/pods/paging.dart

@@ -0,0 +1,82 @@
+import 'dart:async';
+
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+
+abstract class PaginationController<T> {
+  int? get totalCount;
+  int get fetchedCount;
+
+  bool get fetchedAll;
+
+  FutureOr<List<T>> fetch();
+
+  Future<void> refresh();
+
+  Future<void> fetchFurther();
+}
+
+abstract class PaginationFiltered<F> {
+  late F currentFilter;
+
+  Future<void> applyFilter(F filter);
+}
+
+mixin AsyncPaginationController<T> on AsyncNotifier<List<T>>
+    implements PaginationController<T> {
+  @override
+  int? totalCount;
+
+  @override
+  int fetchedCount = 0;
+
+  @override
+  bool get fetchedAll => totalCount != null && fetchedCount >= totalCount!;
+
+  @override
+  FutureOr<List<T>> build() async => fetch();
+
+  @override
+  Future<void> refresh() async {
+    totalCount = null;
+    fetchedCount = 0;
+    state = AsyncLoading<List<T>>();
+
+    final newState = await AsyncValue.guard<List<T>>(() async {
+      return await fetch();
+    });
+    state = newState;
+  }
+
+  @override
+  Future<void> fetchFurther() async {
+    if (!fetchedAll) return;
+
+    state = AsyncLoading<List<T>>();
+
+    final newState = await AsyncValue.guard<List<T>>(() async {
+      final elements = await fetch();
+      return [...?state.valueOrNull, ...elements];
+    });
+
+    state = newState;
+    fetchedCount = newState.value?.length ?? 0;
+  }
+}
+
+mixin AsyncPaginationFilter<F, T> on AsyncPaginationController<T>
+    implements PaginationFiltered<F> {
+  @override
+  Future<void> applyFilter(F filter) async {
+    // Reset the data
+    totalCount = null;
+    fetchedCount = 0;
+    currentFilter = filter;
+
+    state = AsyncLoading<List<T>>();
+
+    final newState = await AsyncValue.guard<List<T>>(() async {
+      return await fetch();
+    });
+    state = newState;
+  }
+}