feat : build list view widget

packages/core/lib/utils/mixins/pagination_controller_mixin.dart

@@ -0,0 +1,64 @@
+import 'dart:async';
+
+import 'package:get/get.dart';
+import 'package:rasadyar_core/utils/network/resource.dart';
+
+mixin PaginationControllerMixin<T> on GetxController {
+  final Rx<Resource<List<T>>> resource = Resource<List<T>>.initial().obs;
+  final RxBool isPaginating = false.obs;
+  final RxBool hasMore = true.obs;
+  int currentPage = 1;
+
+  Timer? _debounceTimer;
+  Future<void> Function()? _lastTriedOperation;
+
+  Future<List<T>> fetchPage(int page);
+
+  void retryLastOperation() => _lastTriedOperation?.call();
+
+  Future<void> refreshData() async {
+    _lastTriedOperation = refreshData;
+    try {
+      currentPage = 1;
+      resource.value = const Resource.loading();
+      final items = await fetchPage(currentPage);
+      if (items.isEmpty) {
+        resource.value = const Resource.empty();
+        hasMore.value = false;
+      } else {
+        resource.value = Resource.success(items);
+        hasMore.value = true;
+      }
+    } catch (e) {
+      resource.value = Resource.error(e.toString());
+    }
+  }
+
+  Future<void> loadMoreData() async {
+    _lastTriedOperation = loadMoreData;
+
+    if (_debounceTimer?.isActive ?? false) return;
+
+    _debounceTimer = Timer(const Duration(milliseconds: 300), () async {
+      if (isPaginating.value || !hasMore.value) return;
+
+      try {
+        isPaginating.value = true;
+        final nextPage = currentPage + 1;
+        final newItems = await fetchPage(nextPage);
+        if (newItems.isEmpty) {
+          hasMore.value = false;
+        } else {
+          final currentList = List<T>.from(resource.value.data ?? []);
+          currentList.addAll(newItems);
+          resource.value = Resource.success(currentList);
+          currentPage = nextPage;
+        }
+      } catch (_) {
+        // ignore or optionally handle pagination error
+      } finally {
+        isPaginating.value = false;
+      }
+    });
+  }
+}