step 10 : check distance selfie or not from back end

lib/screen/presensi/check_distance_provider.dart

@@ -0,0 +1,81 @@
+import 'package:absensi_sas_flutter/repository/presensi_repository.dart';
+
+import 'package:equatable/equatable.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import '../../model/check_distance_model.dart';
+import '../../provider/current_check_distance_provider.dart';
+import '../../provider/dio_provider.dart';
+import '../../provider/graphql_provider.dart';
+import '../../repository/base_repository.dart';
+
+abstract class CheckDistanceState extends Equatable {
+  final DateTime date;
+  const CheckDistanceState(this.date);
+  @override
+  List<Object?> get props => [date];
+}
+
+class CheckDistanceStateInit extends CheckDistanceState {
+  CheckDistanceStateInit() : super(DateTime.now());
+}
+
+class CheckDistanceStateLoading extends CheckDistanceState {
+  CheckDistanceStateLoading() : super(DateTime.now());
+}
+
+class CheckDistanceStateError extends CheckDistanceState {
+  final String message;
+  CheckDistanceStateError({
+    required this.message,
+  }) : super(DateTime.now());
+}
+
+class CheckDistanceStateDone extends CheckDistanceState {
+  final CheckDistanceModel model;
+  CheckDistanceStateDone({
+    required this.model,
+  }) : super(DateTime.now());
+}
+
+//notifier
+class CheckDistanceNotifier extends StateNotifier<CheckDistanceState> {
+  final Ref ref;
+  CheckDistanceNotifier({
+    required this.ref,
+  }) : super(CheckDistanceStateInit());
+
+  void checkDistance(
+    String M_StaffID,
+    String M_CompanyID,
+    String CurrentLatitude,
+    String CurrentLongitude,
+  ) async {
+    try {
+      state = CheckDistanceStateLoading();
+      final graphql = ref.read(graphqlProvider(''));
+      final dio = ref.read(dioProvider);
+      final resp =
+          await PresensiRepository(graphql: graphql, dio: dio).checkDistance(
+        M_StaffID,
+        M_CompanyID,
+        CurrentLatitude,
+        CurrentLongitude,
+      );
+      // set ke global state provider
+      ref.read(currentCheckDistanceProvider.notifier).update((state) => resp);
+      state = CheckDistanceStateDone(model: resp);
+    } catch (e) {
+      if (e is BaseRepositoryException) {
+        state = CheckDistanceStateError(message: e.message ?? "");
+      } else {
+        state = CheckDistanceStateError(message: e.toString());
+      }
+    }
+  }
+}
+
+// provider
+final checkDistanceProvider =
+    StateNotifierProvider<CheckDistanceNotifier, CheckDistanceState>(
+  (ref) => CheckDistanceNotifier(ref: ref),
+);