feat: order infinty scroll

lib/presentation/home/dialog/payment_add_order_dialog.dart

@@ -66,7 +66,13 @@ class _PaymentAddOrderDialogState extends State<PaymentAddOrderDialog> {
                       Center(child: const CircularProgressIndicator()),
                   loading: () =>
                       Center(child: const CircularProgressIndicator()),
-                  loaded: (orders, totalOrder) {
+                  loaded: (
+                    orders,
+                    totalOrder,
+                    _,
+                    __,
+                    ___,
+                  ) {
                     final availableOrders = orders;
 
                     if (selectOrder == null && availableOrders.isNotEmpty) {

lib/presentation/sales/blocs/order_loader/order_loader_bloc.dart

@@ -1,3 +1,5 @@
+import 'dart:async';
+
 import 'package:bloc/bloc.dart';
 import 'package:enaklo_pos/data/datasources/order_remote_datasource.dart';
 import 'package:enaklo_pos/data/models/response/order_response_model.dart';
@@ -9,24 +11,15 @@ part 'order_loader_bloc.freezed.dart';
 
 class OrderLoaderBloc extends Bloc<OrderLoaderEvent, OrderLoaderState> {
   final OrderRemoteDatasource _orderRemoteDatasource;
+
+  Timer? _loadMoreDebounce;
+  bool _isLoadingMore = false;
+
   OrderLoaderBloc(this._orderRemoteDatasource)
       : super(OrderLoaderState.initial()) {
-    on<_GetByStatus>((event, emit) async {
+    on<_GetByStatus>(_onGetOrderByStatus);
-      emit(const _Loading());
+    on<_LoadMore>(_onLoadMore);
-      final result = await _orderRemoteDatasource.getOrder(
+    on<_Refresh>(_onRefresh);
-        status: event.status,
-        limit: 20,
-        dateFrom: event.dateFrom,
-        dateTo: event.dateTo,
-      );
-      result.fold(
-        (l) => emit(_Error(l)),
-        (r) => emit(_Loaded(
-          r.data?.orders ?? [],
-          r.data?.totalCount ?? 0,
-        )),
-      );
-    });
     on<_GetById>((event, emit) async {
       emit(const _Loading());
       final result =
@@ -37,4 +30,138 @@ class OrderLoaderBloc extends Bloc<OrderLoaderEvent, OrderLoaderState> {
       );
     });
   }
+
+  @override
+  Future<void> close() {
+    _loadMoreDebounce?.cancel();
+    return super.close();
+  }
+
+  // Debounce transformer untuk load more
+  // EventTransformer<T> _debounceTransformer<T>() {
+  //   return (events, mapper) {
+  //     return events
+  //         .debounceTime(const Duration(milliseconds: 300))
+  //         .asyncExpand(mapper);
+  //   };
+  // }
+
+  // Initial load
+  Future<void> _onGetOrderByStatus(
+    _GetByStatus event,
+    Emitter<OrderLoaderState> emit,
+  ) async {
+    emit(const _Loading());
+    _isLoadingMore = false; // Reset loading state
+
+    final result = await _orderRemoteDatasource.getOrder(
+      page: 1,
+      limit: 10,
+      status: event.status,
+      dateFrom: event.dateFrom,
+      dateTo: event.dateTo,
+    );
+
+    await result.fold(
+      (failure) async => emit(_Error(failure)),
+      (response) async {
+        final orders = response.data?.orders ?? [];
+        final hasReachedMax = orders.length < 10;
+
+        emit(_Loaded(
+          orders: orders,
+          totalOrder: response.data?.totalCount ?? 0,
+          hasReachedMax: hasReachedMax,
+          currentPage: 1,
+          isLoadingMore: false,
+        ));
+      },
+    );
+  }
+
+  // Load more with enhanced debouncing
+  Future<void> _onLoadMore(
+    _LoadMore event,
+    Emitter<OrderLoaderState> emit,
+  ) async {
+    final currentState = state;
+
+    // Enhanced validation
+    if (currentState is! _Loaded ||
+        currentState.hasReachedMax ||
+        _isLoadingMore ||
+        currentState.isLoadingMore) {
+      return;
+    }
+
+    _isLoadingMore = true;
+
+    // Emit loading more state
+    emit(currentState.copyWith(isLoadingMore: true));
+
+    final nextPage = currentState.currentPage + 1;
+
+    try {
+      final result = await _orderRemoteDatasource.getOrder(
+        page: nextPage,
+        limit: 10,
+        status: event.status,
+        dateFrom: event.dateFrom,
+        dateTo: event.dateTo,
+      );
+
+      await result.fold(
+        (failure) async {
+          // On error, revert loading state but don't show error
+          // Just silently fail and allow retry
+          emit(currentState.copyWith(isLoadingMore: false));
+          _isLoadingMore = false;
+        },
+        (response) async {
+          final newOrders = response.data?.orders ?? [];
+
+          // Prevent duplicate orders
+          final currentOrderIds = currentState.orders.map((p) => p.id).toSet();
+          final filteredNewOrders = newOrders
+              .where((order) => !currentOrderIds.contains(order.id))
+              .toList();
+
+          final allOrders = List<Order>.from(currentState.orders)
+            ..addAll(filteredNewOrders);
+
+          final hasReachedMax = newOrders.length < 10;
+
+          emit(_Loaded(
+            orders: allOrders,
+            totalOrder: response.data?.totalCount ?? 0,
+            hasReachedMax: hasReachedMax,
+            currentPage: nextPage,
+            isLoadingMore: false,
+          ));
+
+          _isLoadingMore = false;
+        },
+      );
+    } catch (e) {
+      // Handle unexpected errors
+      emit(currentState.copyWith(isLoadingMore: false));
+      _isLoadingMore = false;
+    }
+  }
+
+  // Refresh data
+  Future<void> _onRefresh(
+    _Refresh event,
+    Emitter<OrderLoaderState> emit,
+  ) async {
+    _isLoadingMore = false;
+    _loadMoreDebounce?.cancel();
+    add(
+      _GetByStatus(
+        event.status,
+        dateFrom: DateTime.now(),
+        dateTo: DateTime.now(),
+      ),
+    );
+  }
 }

lib/presentation/sales/blocs/order_loader/order_loader_bloc.freezed.dart

@@ -21,6 +21,9 @@ mixin _$OrderLoaderEvent {
     required TResult Function(String status, DateTime dateFrom, DateTime dateTo)
         getByStatus,
     required TResult Function(String id) getById,
+    required TResult Function(String status, DateTime dateFrom, DateTime dateTo)
+        loadMore,
+    required TResult Function(String status) refresh,
   }) =>
       throw _privateConstructorUsedError;
   @optionalTypeArgs
@@ -28,6 +31,9 @@ mixin _$OrderLoaderEvent {
     TResult? Function(String status, DateTime dateFrom, DateTime dateTo)?
         getByStatus,
     TResult? Function(String id)? getById,
+    TResult? Function(String status, DateTime dateFrom, DateTime dateTo)?
+        loadMore,
+    TResult? Function(String status)? refresh,
   }) =>
       throw _privateConstructorUsedError;
   @optionalTypeArgs
@@ -35,6 +41,9 @@ mixin _$OrderLoaderEvent {
     TResult Function(String status, DateTime dateFrom, DateTime dateTo)?
         getByStatus,
     TResult Function(String id)? getById,
+    TResult Function(String status, DateTime dateFrom, DateTime dateTo)?
+        loadMore,
+    TResult Function(String status)? refresh,
     required TResult orElse(),
   }) =>
       throw _privateConstructorUsedError;
@@ -42,18 +51,24 @@ mixin _$OrderLoaderEvent {
   TResult map<TResult extends Object?>({
     required TResult Function(_GetByStatus value) getByStatus,
     required TResult Function(_GetById value) getById,
+    required TResult Function(_LoadMore value) loadMore,
+    required TResult Function(_Refresh value) refresh,
   }) =>
       throw _privateConstructorUsedError;
   @optionalTypeArgs
   TResult? mapOrNull<TResult extends Object?>({
     TResult? Function(_GetByStatus value)? getByStatus,
     TResult? Function(_GetById value)? getById,
+    TResult? Function(_LoadMore value)? loadMore,
+    TResult? Function(_Refresh value)? refresh,
   }) =>
       throw _privateConstructorUsedError;
   @optionalTypeArgs
   TResult maybeMap<TResult extends Object?>({
     TResult Function(_GetByStatus value)? getByStatus,
     TResult Function(_GetById value)? getById,
+    TResult Function(_LoadMore value)? loadMore,
+    TResult Function(_Refresh value)? refresh,
     required TResult orElse(),
   }) =>
       throw _privateConstructorUsedError;
@@ -169,6 +184,9 @@ class _$GetByStatusImpl implements _GetByStatus {
     required TResult Function(String status, DateTime dateFrom, DateTime dateTo)
         getByStatus,
     required TResult Function(String id) getById,
+    required TResult Function(String status, DateTime dateFrom, DateTime dateTo)
+        loadMore,
+    required TResult Function(String status) refresh,
   }) {
     return getByStatus(status, dateFrom, dateTo);
   }
@@ -179,6 +197,9 @@ class _$GetByStatusImpl implements _GetByStatus {
     TResult? Function(String status, DateTime dateFrom, DateTime dateTo)?
         getByStatus,
     TResult? Function(String id)? getById,
+    TResult? Function(String status, DateTime dateFrom, DateTime dateTo)?
+        loadMore,
+    TResult? Function(String status)? refresh,
   }) {
     return getByStatus?.call(status, dateFrom, dateTo);
   }
@@ -189,6 +210,9 @@ class _$GetByStatusImpl implements _GetByStatus {
     TResult Function(String status, DateTime dateFrom, DateTime dateTo)?
         getByStatus,
     TResult Function(String id)? getById,
+    TResult Function(String status, DateTime dateFrom, DateTime dateTo)?
+        loadMore,
+    TResult Function(String status)? refresh,
     required TResult orElse(),
   }) {
     if (getByStatus != null) {
@@ -202,6 +226,8 @@ class _$GetByStatusImpl implements _GetByStatus {
   TResult map<TResult extends Object?>({
     required TResult Function(_GetByStatus value) getByStatus,
     required TResult Function(_GetById value) getById,
+    required TResult Function(_LoadMore value) loadMore,
+    required TResult Function(_Refresh value) refresh,
   }) {
     return getByStatus(this);
   }
@@ -211,6 +237,8 @@ class _$GetByStatusImpl implements _GetByStatus {
   TResult? mapOrNull<TResult extends Object?>({
     TResult? Function(_GetByStatus value)? getByStatus,
     TResult? Function(_GetById value)? getById,
+    TResult? Function(_LoadMore value)? loadMore,
+    TResult? Function(_Refresh value)? refresh,
   }) {
     return getByStatus?.call(this);
   }
@@ -220,6 +248,8 @@ class _$GetByStatusImpl implements _GetByStatus {
   TResult maybeMap<TResult extends Object?>({
     TResult Function(_GetByStatus value)? getByStatus,
     TResult Function(_GetById value)? getById,
+    TResult Function(_LoadMore value)? loadMore,
+    TResult Function(_Refresh value)? refresh,
     required TResult orElse(),
   }) {
     if (getByStatus != null) {
@@ -316,6 +346,9 @@ class _$GetByIdImpl implements _GetById {
     required TResult Function(String status, DateTime dateFrom, DateTime dateTo)
         getByStatus,
     required TResult Function(String id) getById,
+    required TResult Function(String status, DateTime dateFrom, DateTime dateTo)
+        loadMore,
+    required TResult Function(String status) refresh,
   }) {
     return getById(id);
   }
@@ -326,6 +359,9 @@ class _$GetByIdImpl implements _GetById {
     TResult? Function(String status, DateTime dateFrom, DateTime dateTo)?
         getByStatus,
     TResult? Function(String id)? getById,
+    TResult? Function(String status, DateTime dateFrom, DateTime dateTo)?
+        loadMore,
+    TResult? Function(String status)? refresh,
   }) {
     return getById?.call(id);
   }
@@ -336,6 +372,9 @@ class _$GetByIdImpl implements _GetById {
     TResult Function(String status, DateTime dateFrom, DateTime dateTo)?
         getByStatus,
     TResult Function(String id)? getById,
+    TResult Function(String status, DateTime dateFrom, DateTime dateTo)?
+        loadMore,
+    TResult Function(String status)? refresh,
     required TResult orElse(),
   }) {
     if (getById != null) {
@@ -349,6 +388,8 @@ class _$GetByIdImpl implements _GetById {
   TResult map<TResult extends Object?>({
     required TResult Function(_GetByStatus value) getByStatus,
     required TResult Function(_GetById value) getById,
+    required TResult Function(_LoadMore value) loadMore,
+    required TResult Function(_Refresh value) refresh,
   }) {
     return getById(this);
   }
@@ -358,6 +399,8 @@ class _$GetByIdImpl implements _GetById {
   TResult? mapOrNull<TResult extends Object?>({
     TResult? Function(_GetByStatus value)? getByStatus,
     TResult? Function(_GetById value)? getById,
+    TResult? Function(_LoadMore value)? loadMore,
+    TResult? Function(_Refresh value)? refresh,
   }) {
     return getById?.call(this);
   }
@@ -367,6 +410,8 @@ class _$GetByIdImpl implements _GetById {
   TResult maybeMap<TResult extends Object?>({
     TResult Function(_GetByStatus value)? getByStatus,
     TResult Function(_GetById value)? getById,
+    TResult Function(_LoadMore value)? loadMore,
+    TResult Function(_Refresh value)? refresh,
     required TResult orElse(),
   }) {
     if (getById != null) {
@@ -388,13 +433,353 @@ abstract class _GetById implements OrderLoaderEvent {
       throw _privateConstructorUsedError;
 }
 
+/// @nodoc
+abstract class _$$LoadMoreImplCopyWith<$Res> {
+  factory _$$LoadMoreImplCopyWith(
+          _$LoadMoreImpl value, $Res Function(_$LoadMoreImpl) then) =
+      __$$LoadMoreImplCopyWithImpl<$Res>;
+  @useResult
+  $Res call({String status, DateTime dateFrom, DateTime dateTo});
+}
+
+/// @nodoc
+class __$$LoadMoreImplCopyWithImpl<$Res>
+    extends _$OrderLoaderEventCopyWithImpl<$Res, _$LoadMoreImpl>
+    implements _$$LoadMoreImplCopyWith<$Res> {
+  __$$LoadMoreImplCopyWithImpl(
+      _$LoadMoreImpl _value, $Res Function(_$LoadMoreImpl) _then)
+      : super(_value, _then);
+
+  /// Create a copy of OrderLoaderEvent
+  /// with the given fields replaced by the non-null parameter values.
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? status = null,
+    Object? dateFrom = null,
+    Object? dateTo = null,
+  }) {
+    return _then(_$LoadMoreImpl(
+      null == status
+          ? _value.status
+          : status // ignore: cast_nullable_to_non_nullable
+              as String,
+      dateFrom: null == dateFrom
+          ? _value.dateFrom
+          : dateFrom // ignore: cast_nullable_to_non_nullable
+              as DateTime,
+      dateTo: null == dateTo
+          ? _value.dateTo
+          : dateTo // ignore: cast_nullable_to_non_nullable
+              as DateTime,
+    ));
+  }
+}
+
+/// @nodoc
+
+class _$LoadMoreImpl implements _LoadMore {
+  const _$LoadMoreImpl(this.status,
+      {required this.dateFrom, required this.dateTo});
+
+  @override
+  final String status;
+  @override
+  final DateTime dateFrom;
+  @override
+  final DateTime dateTo;
+
+  @override
+  String toString() {
+    return 'OrderLoaderEvent.loadMore(status: $status, dateFrom: $dateFrom, dateTo: $dateTo)';
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is _$LoadMoreImpl &&
+            (identical(other.status, status) || other.status == status) &&
+            (identical(other.dateFrom, dateFrom) ||
+                other.dateFrom == dateFrom) &&
+            (identical(other.dateTo, dateTo) || other.dateTo == dateTo));
+  }
+
+  @override
+  int get hashCode => Object.hash(runtimeType, status, dateFrom, dateTo);
+
+  /// Create a copy of OrderLoaderEvent
+  /// with the given fields replaced by the non-null parameter values.
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  @override
+  @pragma('vm:prefer-inline')
+  _$$LoadMoreImplCopyWith<_$LoadMoreImpl> get copyWith =>
+      __$$LoadMoreImplCopyWithImpl<_$LoadMoreImpl>(this, _$identity);
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>({
+    required TResult Function(String status, DateTime dateFrom, DateTime dateTo)
+        getByStatus,
+    required TResult Function(String id) getById,
+    required TResult Function(String status, DateTime dateFrom, DateTime dateTo)
+        loadMore,
+    required TResult Function(String status) refresh,
+  }) {
+    return loadMore(status, dateFrom, dateTo);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>({
+    TResult? Function(String status, DateTime dateFrom, DateTime dateTo)?
+        getByStatus,
+    TResult? Function(String id)? getById,
+    TResult? Function(String status, DateTime dateFrom, DateTime dateTo)?
+        loadMore,
+    TResult? Function(String status)? refresh,
+  }) {
+    return loadMore?.call(status, dateFrom, dateTo);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>({
+    TResult Function(String status, DateTime dateFrom, DateTime dateTo)?
+        getByStatus,
+    TResult Function(String id)? getById,
+    TResult Function(String status, DateTime dateFrom, DateTime dateTo)?
+        loadMore,
+    TResult Function(String status)? refresh,
+    required TResult orElse(),
+  }) {
+    if (loadMore != null) {
+      return loadMore(status, dateFrom, dateTo);
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>({
+    required TResult Function(_GetByStatus value) getByStatus,
+    required TResult Function(_GetById value) getById,
+    required TResult Function(_LoadMore value) loadMore,
+    required TResult Function(_Refresh value) refresh,
+  }) {
+    return loadMore(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>({
+    TResult? Function(_GetByStatus value)? getByStatus,
+    TResult? Function(_GetById value)? getById,
+    TResult? Function(_LoadMore value)? loadMore,
+    TResult? Function(_Refresh value)? refresh,
+  }) {
+    return loadMore?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>({
+    TResult Function(_GetByStatus value)? getByStatus,
+    TResult Function(_GetById value)? getById,
+    TResult Function(_LoadMore value)? loadMore,
+    TResult Function(_Refresh value)? refresh,
+    required TResult orElse(),
+  }) {
+    if (loadMore != null) {
+      return loadMore(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class _LoadMore implements OrderLoaderEvent {
+  const factory _LoadMore(final String status,
+      {required final DateTime dateFrom,
+      required final DateTime dateTo}) = _$LoadMoreImpl;
+
+  String get status;
+  DateTime get dateFrom;
+  DateTime get dateTo;
+
+  /// Create a copy of OrderLoaderEvent
+  /// with the given fields replaced by the non-null parameter values.
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  _$$LoadMoreImplCopyWith<_$LoadMoreImpl> get copyWith =>
+      throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class _$$RefreshImplCopyWith<$Res> {
+  factory _$$RefreshImplCopyWith(
+          _$RefreshImpl value, $Res Function(_$RefreshImpl) then) =
+      __$$RefreshImplCopyWithImpl<$Res>;
+  @useResult
+  $Res call({String status});
+}
+
+/// @nodoc
+class __$$RefreshImplCopyWithImpl<$Res>
+    extends _$OrderLoaderEventCopyWithImpl<$Res, _$RefreshImpl>
+    implements _$$RefreshImplCopyWith<$Res> {
+  __$$RefreshImplCopyWithImpl(
+      _$RefreshImpl _value, $Res Function(_$RefreshImpl) _then)
+      : super(_value, _then);
+
+  /// Create a copy of OrderLoaderEvent
+  /// with the given fields replaced by the non-null parameter values.
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? status = null,
+  }) {
+    return _then(_$RefreshImpl(
+      null == status
+          ? _value.status
+          : status // ignore: cast_nullable_to_non_nullable
+              as String,
+    ));
+  }
+}
+
+/// @nodoc
+
+class _$RefreshImpl implements _Refresh {
+  const _$RefreshImpl(this.status);
+
+  @override
+  final String status;
+
+  @override
+  String toString() {
+    return 'OrderLoaderEvent.refresh(status: $status)';
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is _$RefreshImpl &&
+            (identical(other.status, status) || other.status == status));
+  }
+
+  @override
+  int get hashCode => Object.hash(runtimeType, status);
+
+  /// Create a copy of OrderLoaderEvent
+  /// with the given fields replaced by the non-null parameter values.
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  @override
+  @pragma('vm:prefer-inline')
+  _$$RefreshImplCopyWith<_$RefreshImpl> get copyWith =>
+      __$$RefreshImplCopyWithImpl<_$RefreshImpl>(this, _$identity);
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>({
+    required TResult Function(String status, DateTime dateFrom, DateTime dateTo)
+        getByStatus,
+    required TResult Function(String id) getById,
+    required TResult Function(String status, DateTime dateFrom, DateTime dateTo)
+        loadMore,
+    required TResult Function(String status) refresh,
+  }) {
+    return refresh(status);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>({
+    TResult? Function(String status, DateTime dateFrom, DateTime dateTo)?
+        getByStatus,
+    TResult? Function(String id)? getById,
+    TResult? Function(String status, DateTime dateFrom, DateTime dateTo)?
+        loadMore,
+    TResult? Function(String status)? refresh,
+  }) {
+    return refresh?.call(status);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>({
+    TResult Function(String status, DateTime dateFrom, DateTime dateTo)?
+        getByStatus,
+    TResult Function(String id)? getById,
+    TResult Function(String status, DateTime dateFrom, DateTime dateTo)?
+        loadMore,
+    TResult Function(String status)? refresh,
+    required TResult orElse(),
+  }) {
+    if (refresh != null) {
+      return refresh(status);
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>({
+    required TResult Function(_GetByStatus value) getByStatus,
+    required TResult Function(_GetById value) getById,
+    required TResult Function(_LoadMore value) loadMore,
+    required TResult Function(_Refresh value) refresh,
+  }) {
+    return refresh(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>({
+    TResult? Function(_GetByStatus value)? getByStatus,
+    TResult? Function(_GetById value)? getById,
+    TResult? Function(_LoadMore value)? loadMore,
+    TResult? Function(_Refresh value)? refresh,
+  }) {
+    return refresh?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>({
+    TResult Function(_GetByStatus value)? getByStatus,
+    TResult Function(_GetById value)? getById,
+    TResult Function(_LoadMore value)? loadMore,
+    TResult Function(_Refresh value)? refresh,
+    required TResult orElse(),
+  }) {
+    if (refresh != null) {
+      return refresh(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class _Refresh implements OrderLoaderEvent {
+  const factory _Refresh(final String status) = _$RefreshImpl;
+
+  String get status;
+
+  /// Create a copy of OrderLoaderEvent
+  /// with the given fields replaced by the non-null parameter values.
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  _$$RefreshImplCopyWith<_$RefreshImpl> get copyWith =>
+      throw _privateConstructorUsedError;
+}
+
 /// @nodoc
 mixin _$OrderLoaderState {
   @optionalTypeArgs
   TResult when<TResult extends Object?>({
     required TResult Function() initial,
     required TResult Function() loading,
-    required TResult Function(List<Order> orders, int totalOrder) loaded,
+    required TResult Function(List<Order> orders, int totalOrder,
+            bool hasReachedMax, int currentPage, bool isLoadingMore)
+        loaded,
     required TResult Function(String message) error,
     required TResult Function(Order order) loadedDetail,
   }) =>
@@ -403,7 +788,9 @@ mixin _$OrderLoaderState {
   TResult? whenOrNull<TResult extends Object?>({
     TResult? Function()? initial,
     TResult? Function()? loading,
-    TResult? Function(List<Order> orders, int totalOrder)? loaded,
+    TResult? Function(List<Order> orders, int totalOrder, bool hasReachedMax,
+            int currentPage, bool isLoadingMore)?
+        loaded,
     TResult? Function(String message)? error,
     TResult? Function(Order order)? loadedDetail,
   }) =>
@@ -412,7 +799,9 @@ mixin _$OrderLoaderState {
   TResult maybeWhen<TResult extends Object?>({
     TResult Function()? initial,
     TResult Function()? loading,
-    TResult Function(List<Order> orders, int totalOrder)? loaded,
+    TResult Function(List<Order> orders, int totalOrder, bool hasReachedMax,
+            int currentPage, bool isLoadingMore)?
+        loaded,
     TResult Function(String message)? error,
     TResult Function(Order order)? loadedDetail,
     required TResult orElse(),
@@ -512,7 +901,9 @@ class _$InitialImpl implements _Initial {
   TResult when<TResult extends Object?>({
     required TResult Function() initial,
     required TResult Function() loading,
-    required TResult Function(List<Order> orders, int totalOrder) loaded,
+    required TResult Function(List<Order> orders, int totalOrder,
+            bool hasReachedMax, int currentPage, bool isLoadingMore)
+        loaded,
     required TResult Function(String message) error,
     required TResult Function(Order order) loadedDetail,
   }) {
@@ -524,7 +915,9 @@ class _$InitialImpl implements _Initial {
   TResult? whenOrNull<TResult extends Object?>({
     TResult? Function()? initial,
     TResult? Function()? loading,
-    TResult? Function(List<Order> orders, int totalOrder)? loaded,
+    TResult? Function(List<Order> orders, int totalOrder, bool hasReachedMax,
+            int currentPage, bool isLoadingMore)?
+        loaded,
     TResult? Function(String message)? error,
     TResult? Function(Order order)? loadedDetail,
   }) {
@@ -536,7 +929,9 @@ class _$InitialImpl implements _Initial {
   TResult maybeWhen<TResult extends Object?>({
     TResult Function()? initial,
     TResult Function()? loading,
-    TResult Function(List<Order> orders, int totalOrder)? loaded,
+    TResult Function(List<Order> orders, int totalOrder, bool hasReachedMax,
+            int currentPage, bool isLoadingMore)?
+        loaded,
     TResult Function(String message)? error,
     TResult Function(Order order)? loadedDetail,
     required TResult orElse(),
@@ -635,7 +1030,9 @@ class _$LoadingImpl implements _Loading {
   TResult when<TResult extends Object?>({
     required TResult Function() initial,
     required TResult Function() loading,
-    required TResult Function(List<Order> orders, int totalOrder) loaded,
+    required TResult Function(List<Order> orders, int totalOrder,
+            bool hasReachedMax, int currentPage, bool isLoadingMore)
+        loaded,
     required TResult Function(String message) error,
     required TResult Function(Order order) loadedDetail,
   }) {
@@ -647,7 +1044,9 @@ class _$LoadingImpl implements _Loading {
   TResult? whenOrNull<TResult extends Object?>({
     TResult? Function()? initial,
     TResult? Function()? loading,
-    TResult? Function(List<Order> orders, int totalOrder)? loaded,
+    TResult? Function(List<Order> orders, int totalOrder, bool hasReachedMax,
+            int currentPage, bool isLoadingMore)?
+        loaded,
     TResult? Function(String message)? error,
     TResult? Function(Order order)? loadedDetail,
   }) {
@@ -659,7 +1058,9 @@ class _$LoadingImpl implements _Loading {
   TResult maybeWhen<TResult extends Object?>({
     TResult Function()? initial,
     TResult Function()? loading,
-    TResult Function(List<Order> orders, int totalOrder)? loaded,
+    TResult Function(List<Order> orders, int totalOrder, bool hasReachedMax,
+            int currentPage, bool isLoadingMore)?
+        loaded,
     TResult Function(String message)? error,
     TResult Function(Order order)? loadedDetail,
     required TResult orElse(),
@@ -721,7 +1122,12 @@ abstract class _$$LoadedImplCopyWith<$Res> {
           _$LoadedImpl value, $Res Function(_$LoadedImpl) then) =
       __$$LoadedImplCopyWithImpl<$Res>;
   @useResult
-  $Res call({List<Order> orders, int totalOrder});
+  $Res call(
+      {List<Order> orders,
+      int totalOrder,
+      bool hasReachedMax,
+      int currentPage,
+      bool isLoadingMore});
 }
 
 /// @nodoc
@@ -739,16 +1145,31 @@ class __$$LoadedImplCopyWithImpl<$Res>
   $Res call({
     Object? orders = null,
     Object? totalOrder = null,
+    Object? hasReachedMax = null,
+    Object? currentPage = null,
+    Object? isLoadingMore = null,
   }) {
     return _then(_$LoadedImpl(
-      null == orders
+      orders: null == orders
           ? _value._orders
           : orders // ignore: cast_nullable_to_non_nullable
               as List<Order>,
-      null == totalOrder
+      totalOrder: null == totalOrder
           ? _value.totalOrder
           : totalOrder // ignore: cast_nullable_to_non_nullable
               as int,
+      hasReachedMax: null == hasReachedMax
+          ? _value.hasReachedMax
+          : hasReachedMax // ignore: cast_nullable_to_non_nullable
+              as bool,
+      currentPage: null == currentPage
+          ? _value.currentPage
+          : currentPage // ignore: cast_nullable_to_non_nullable
+              as int,
+      isLoadingMore: null == isLoadingMore
+          ? _value.isLoadingMore
+          : isLoadingMore // ignore: cast_nullable_to_non_nullable
+              as bool,
     ));
   }
 }
@@ -756,7 +1177,12 @@ class __$$LoadedImplCopyWithImpl<$Res>
 /// @nodoc
 
 class _$LoadedImpl implements _Loaded {
-  const _$LoadedImpl(final List<Order> orders, this.totalOrder)
+  const _$LoadedImpl(
+      {required final List<Order> orders,
+      required this.totalOrder,
+      required this.hasReachedMax,
+      required this.currentPage,
+      required this.isLoadingMore})
       : _orders = orders;
 
   final List<Order> _orders;
@@ -769,10 +1195,16 @@ class _$LoadedImpl implements _Loaded {
 
   @override
   final int totalOrder;
+  @override
+  final bool hasReachedMax;
+  @override
+  final int currentPage;
+  @override
+  final bool isLoadingMore;
 
   @override
   String toString() {
-    return 'OrderLoaderState.loaded(orders: $orders, totalOrder: $totalOrder)';
+    return 'OrderLoaderState.loaded(orders: $orders, totalOrder: $totalOrder, hasReachedMax: $hasReachedMax, currentPage: $currentPage, isLoadingMore: $isLoadingMore)';
   }
 
   @override
@@ -782,12 +1214,23 @@ class _$LoadedImpl implements _Loaded {
             other is _$LoadedImpl &&
             const DeepCollectionEquality().equals(other._orders, _orders) &&
             (identical(other.totalOrder, totalOrder) ||
-                other.totalOrder == totalOrder));
+                other.totalOrder == totalOrder) &&
+            (identical(other.hasReachedMax, hasReachedMax) ||
+                other.hasReachedMax == hasReachedMax) &&
+            (identical(other.currentPage, currentPage) ||
+                other.currentPage == currentPage) &&
+            (identical(other.isLoadingMore, isLoadingMore) ||
+                other.isLoadingMore == isLoadingMore));
   }
 
   @override
   int get hashCode => Object.hash(
-      runtimeType, const DeepCollectionEquality().hash(_orders), totalOrder);
+      runtimeType,
+      const DeepCollectionEquality().hash(_orders),
+      totalOrder,
+      hasReachedMax,
+      currentPage,
+      isLoadingMore);
 
   /// Create a copy of OrderLoaderState
   /// with the given fields replaced by the non-null parameter values.
@@ -802,11 +1245,14 @@ class _$LoadedImpl implements _Loaded {
   TResult when<TResult extends Object?>({
     required TResult Function() initial,
     required TResult Function() loading,
-    required TResult Function(List<Order> orders, int totalOrder) loaded,
+    required TResult Function(List<Order> orders, int totalOrder,
+            bool hasReachedMax, int currentPage, bool isLoadingMore)
+        loaded,
     required TResult Function(String message) error,
     required TResult Function(Order order) loadedDetail,
   }) {
-    return loaded(orders, totalOrder);
+    return loaded(
+        orders, totalOrder, hasReachedMax, currentPage, isLoadingMore);
   }
 
   @override
@@ -814,11 +1260,14 @@ class _$LoadedImpl implements _Loaded {
   TResult? whenOrNull<TResult extends Object?>({
     TResult? Function()? initial,
     TResult? Function()? loading,
-    TResult? Function(List<Order> orders, int totalOrder)? loaded,
+    TResult? Function(List<Order> orders, int totalOrder, bool hasReachedMax,
+            int currentPage, bool isLoadingMore)?
+        loaded,
     TResult? Function(String message)? error,
     TResult? Function(Order order)? loadedDetail,
   }) {
-    return loaded?.call(orders, totalOrder);
+    return loaded?.call(
+        orders, totalOrder, hasReachedMax, currentPage, isLoadingMore);
   }
 
   @override
@@ -826,13 +1275,16 @@ class _$LoadedImpl implements _Loaded {
   TResult maybeWhen<TResult extends Object?>({
     TResult Function()? initial,
     TResult Function()? loading,
-    TResult Function(List<Order> orders, int totalOrder)? loaded,
+    TResult Function(List<Order> orders, int totalOrder, bool hasReachedMax,
+            int currentPage, bool isLoadingMore)?
+        loaded,
     TResult Function(String message)? error,
     TResult Function(Order order)? loadedDetail,
     required TResult orElse(),
   }) {
     if (loaded != null) {
-      return loaded(orders, totalOrder);
+      return loaded(
+          orders, totalOrder, hasReachedMax, currentPage, isLoadingMore);
     }
     return orElse();
   }
@@ -879,11 +1331,18 @@ class _$LoadedImpl implements _Loaded {
 }
 
 abstract class _Loaded implements OrderLoaderState {
-  const factory _Loaded(final List<Order> orders, final int totalOrder) =
+  const factory _Loaded(
-      _$LoadedImpl;
+      {required final List<Order> orders,
+      required final int totalOrder,
+      required final bool hasReachedMax,
+      required final int currentPage,
+      required final bool isLoadingMore}) = _$LoadedImpl;
 
   List<Order> get orders;
   int get totalOrder;
+  bool get hasReachedMax;
+  int get currentPage;
+  bool get isLoadingMore;
 
   /// Create a copy of OrderLoaderState
   /// with the given fields replaced by the non-null parameter values.
@@ -962,7 +1421,9 @@ class _$ErrorImpl implements _Error {
   TResult when<TResult extends Object?>({
     required TResult Function() initial,
     required TResult Function() loading,
-    required TResult Function(List<Order> orders, int totalOrder) loaded,
+    required TResult Function(List<Order> orders, int totalOrder,
+            bool hasReachedMax, int currentPage, bool isLoadingMore)
+        loaded,
     required TResult Function(String message) error,
     required TResult Function(Order order) loadedDetail,
   }) {
@@ -974,7 +1435,9 @@ class _$ErrorImpl implements _Error {
   TResult? whenOrNull<TResult extends Object?>({
     TResult? Function()? initial,
     TResult? Function()? loading,
-    TResult? Function(List<Order> orders, int totalOrder)? loaded,
+    TResult? Function(List<Order> orders, int totalOrder, bool hasReachedMax,
+            int currentPage, bool isLoadingMore)?
+        loaded,
     TResult? Function(String message)? error,
     TResult? Function(Order order)? loadedDetail,
   }) {
@@ -986,7 +1449,9 @@ class _$ErrorImpl implements _Error {
   TResult maybeWhen<TResult extends Object?>({
     TResult Function()? initial,
     TResult Function()? loading,
-    TResult Function(List<Order> orders, int totalOrder)? loaded,
+    TResult Function(List<Order> orders, int totalOrder, bool hasReachedMax,
+            int currentPage, bool isLoadingMore)?
+        loaded,
     TResult Function(String message)? error,
     TResult Function(Order order)? loadedDetail,
     required TResult orElse(),
@@ -1120,7 +1585,9 @@ class _$LoadedDetailImpl implements _LoadedDetail {
   TResult when<TResult extends Object?>({
     required TResult Function() initial,
     required TResult Function() loading,
-    required TResult Function(List<Order> orders, int totalOrder) loaded,
+    required TResult Function(List<Order> orders, int totalOrder,
+            bool hasReachedMax, int currentPage, bool isLoadingMore)
+        loaded,
     required TResult Function(String message) error,
     required TResult Function(Order order) loadedDetail,
   }) {
@@ -1132,7 +1599,9 @@ class _$LoadedDetailImpl implements _LoadedDetail {
   TResult? whenOrNull<TResult extends Object?>({
     TResult? Function()? initial,
     TResult? Function()? loading,
-    TResult? Function(List<Order> orders, int totalOrder)? loaded,
+    TResult? Function(List<Order> orders, int totalOrder, bool hasReachedMax,
+            int currentPage, bool isLoadingMore)?
+        loaded,
     TResult? Function(String message)? error,
     TResult? Function(Order order)? loadedDetail,
   }) {
@@ -1144,7 +1613,9 @@ class _$LoadedDetailImpl implements _LoadedDetail {
   TResult maybeWhen<TResult extends Object?>({
     TResult Function()? initial,
     TResult Function()? loading,
-    TResult Function(List<Order> orders, int totalOrder)? loaded,
+    TResult Function(List<Order> orders, int totalOrder, bool hasReachedMax,
+            int currentPage, bool isLoadingMore)?
+        loaded,
     TResult Function(String message)? error,
     TResult Function(Order order)? loadedDetail,
     required TResult orElse(),

lib/presentation/sales/blocs/order_loader/order_loader_event.dart

@@ -8,4 +8,10 @@ class OrderLoaderEvent with _$OrderLoaderEvent {
     required DateTime dateTo,
   }) = _GetByStatus;
   const factory OrderLoaderEvent.getById(String id) = _GetById;
+  const factory OrderLoaderEvent.loadMore(
+    String status, {
+    required DateTime dateFrom,
+    required DateTime dateTo,
+  }) = _LoadMore;
+  const factory OrderLoaderEvent.refresh(String status) = _Refresh;
 }

lib/presentation/sales/blocs/order_loader/order_loader_state.dart

@@ -4,8 +4,13 @@ part of 'order_loader_bloc.dart';
 class OrderLoaderState with _$OrderLoaderState {
   const factory OrderLoaderState.initial() = _Initial;
   const factory OrderLoaderState.loading() = _Loading;
-  const factory OrderLoaderState.loaded(List<Order> orders, int totalOrder) =
+  const factory OrderLoaderState.loaded({
-      _Loaded;
+    required List<Order> orders,
+    required int totalOrder,
+    required bool hasReachedMax,
+    required int currentPage,
+    required bool isLoadingMore,
+  }) = _Loaded;
   const factory OrderLoaderState.error(String message) = _Error;
   const factory OrderLoaderState.loadedDetail(Order order) = _LoadedDetail;
 }

lib/presentation/sales/pages/sales_page.dart

@@ -29,6 +29,7 @@ class SalesPage extends StatefulWidget {
 }
 
 class _SalesPageState extends State<SalesPage> {
+  ScrollController scrollController = ScrollController();
   DateTime startDate = DateTime.now();
   DateTime endDate = DateTime.now();
   Order? orderDetail;
@@ -65,69 +66,82 @@ class _SalesPageState extends State<SalesPage> {
           children: [
             Expanded(
               flex: 2,
-              child: Material(
+              child: NotificationListener<ScrollNotification>(
-                color: AppColors.white,
+                onNotification: (notification) {
-                child: Column(
+                  if (notification is ScrollEndNotification &&
-                  children: [
+                      scrollController.position.extentAfter == 0) {
-                    SalesTitle(
+                    context.read<OrderLoaderBloc>().add(
-                      title: widget.status == 'pending'
+                        OrderLoaderEvent.loadMore(widget.status,
-                          ? "Pending Pesanan"
+                            dateFrom: startDate, dateTo: endDate));
-                          : "Daftar Pesanan",
+                    return true;
-                      startDate: startDate,
+                  }
-                      endDate: endDate,
-                      onChanged: (value) {
-                        setState(() {
-                          searchQuery = value;
-                        });
-                      },
-                      onDateRangeChanged: (start, end) {
-                        setState(() {
-                          startDate = start;
-                          endDate = end;
-                        });
 
-                        context.read<OrderLoaderBloc>().add(
+                  return true;
-                            OrderLoaderEvent.getByStatus(widget.status,
+                },
-                                dateFrom: startDate, dateTo: endDate));
+                child: Material(
-                      },
+                  color: AppColors.white,
-                    ),
+                  child: Column(
-                    Expanded(
+                    children: [
-                      child: BlocBuilder<OrderLoaderBloc, OrderLoaderState>(
+                      SalesTitle(
-                        builder: (context, state) {
+                        title: widget.status == 'pending'
-                          return state.maybeWhen(
+                            ? "Pending Pesanan"
-                            orElse: () => const Center(
+                            : "Daftar Pesanan",
-                              child: CircularProgressIndicator(),
+                        startDate: startDate,
-                            ),
+                        endDate: endDate,
-                            loading: () => const Center(
+                        onChanged: (value) {
-                              child: CircularProgressIndicator(),
+                          setState(() {
-                            ),
+                            searchQuery = value;
-                            error: (message) => Center(
+                          });
-                              child: Text(
+                        },
-                                message,
+                        onDateRangeChanged: (start, end) {
-                                style: TextStyle(
+                          setState(() {
-                                  fontSize: 16.0,
+                            startDate = start;
-                                  fontWeight: FontWeight.bold,
+                            endDate = end;
+                          });
+
+                          context.read<OrderLoaderBloc>().add(
+                              OrderLoaderEvent.getByStatus(widget.status,
+                                  dateFrom: startDate, dateTo: endDate));
+                        },
+                      ),
+                      Expanded(
+                        child: BlocBuilder<OrderLoaderBloc, OrderLoaderState>(
+                          builder: (context, state) {
+                            return state.maybeWhen(
+                              orElse: () => const Center(
+                                child: CircularProgressIndicator(),
+                              ),
+                              loading: () => const Center(
+                                child: CircularProgressIndicator(),
+                              ),
+                              error: (message) => Center(
+                                child: Text(
+                                  message,
+                                  style: TextStyle(
+                                    fontSize: 16.0,
+                                    fontWeight: FontWeight.bold,
+                                  ),
                                 ),
                               ),
-                            ),
+                              loaded: (orders, totalOrder, hasReachedMax,
-                            loaded: (orders, totalOrder) {
+                                  currentPage, isLoadingMore) {
-                              final filtered = _filterOrders(orders);
+                                final filtered = _filterOrders(orders);
-                              if (filtered.isEmpty) {
+                                if (filtered.isEmpty) {
-                                return Center(
+                                  return Center(
-                                  child: Text(
+                                    child: Text(
-                                    "Belum ada transaksi saat ini. ",
+                                      "Belum ada transaksi saat ini. ",
-                                    style: TextStyle(
+                                      style: TextStyle(
-                                      fontSize: 16.0,
+                                        fontSize: 16.0,
-                                      fontWeight: FontWeight.bold,
+                                        fontWeight: FontWeight.bold,
+                                      ),
                                     ),
-                                  ),
+                                  );
-                                );
+                                } else {
-                              } else {
+                                  return ListView.builder(
-                                return SingleChildScrollView(
+                                    itemCount: filtered.length,
-                                  child: Column(
+                                    controller: scrollController,
-                                    children: List.generate(
+                                    itemBuilder: (context, index) {
-                                      filtered.length,
+                                      return GestureDetector(
-                                      (index) => GestureDetector(
                                         onTap: () {
                                           setState(() {
                                             orderDetail = filtered[index];
@@ -141,17 +155,17 @@ class _SalesPageState extends State<SalesPage> {
                                           isActive:
                                               orders[index] == orderDetail,
                                         ),
-                                      ),
+                                      );
-                                    ),
+                                    },
-                                  ),
+                                  );
-                                );
+                                }
-                              }
+                              },
-                            },
+                            );
-                          );
+                          },
-                        },
+                        ),
                       ),
-                    ),
+                    ],
-                  ],
+                  ),
                 ),
               ),
             ),
@@ -202,18 +216,6 @@ class _SalesPageState extends State<SalesPage> {
                                 );
                               }),
                               SpaceWidth(8),
-                              Button.outlined(
-                                onPressed: () {
-                                  context.push(
-                                    PaymentPage(
-                                      order: orderDetail!,
-                                    ),
-                                  );
-                                },
-                                label: 'Bayar',
-                                icon: Icon(Icons.payment),
-                              ),
-                              SpaceWidth(8),
                               Button.outlined(
                                 onPressed: () {
                                   context.push(
@@ -223,7 +225,22 @@ class _SalesPageState extends State<SalesPage> {
                                   );
                                 },
                                 label: 'Split Bill',
-                                icon: Icon(Icons.payment),
+                                icon: Icon(
+                                  Icons.calculate_outlined,
+                                ),
+                              ),
+                              SpaceWidth(8),
+                              Button.filled(
+                                width: 120,
+                                onPressed: () {
+                                  context.push(
+                                    PaymentPage(
+                                      order: orderDetail!,
+                                    ),
+                                  );
+                                },
+                                label: 'Bayar',
+                                icon: Icon(Icons.payment, color: Colors.white),
                               ),
                             ],
                             if (widget.status == 'completed')

lib/presentation/sales/widgets/sales_title.dart

@@ -91,7 +91,7 @@ class SalesTitle extends StatelessWidget {
                     builder: (context, state) {
                       return state.maybeWhen(
                         orElse: () => const SizedBox.shrink(),
-                        loaded: (orders, totalOrder) => Text(
+                        loaded: (orders, totalOrder, _, __, ___) => Text(
                           '$totalOrder Pesanan',
                           style: TextStyle(
                             color: AppColors.black,