chnages has been made and net salary is being displayed

lib/domain/models/change_password_request.dart

@@ -0,0 +1,6 @@
+class ChangePasswordRequest {
+  final String oldPassword;
+  final String newPassword;
+
+  ChangePasswordRequest({required this.oldPassword, required this.newPassword});
+}

lib/domain/models/general_response_model.dart

@@ -0,0 +1,13 @@
+class GeneralResponseModel {
+  final int statusCode;
+  final bool isSuccess;
+  final String message;
+  final bool? data;
+
+  GeneralResponseModel({
+    required this.statusCode,
+    required this.isSuccess,
+    required this.message,
+    this.data,
+  });
+}

lib/domain/models/salary_model.dart

@@ -0,0 +1,4 @@
+class SalaryModel {
+  final double netAmount;
+  SalaryModel({required this.netAmount});
+}

lib/domain/repositories/attendance_repository.dart

@@ -4,6 +4,7 @@ import '../models/attendance_response_model.dart';
 import '../models/attendance_model.dart';
 import '../models/overtime_model.dart';
 import '../models/extra_payment_model.dart';
+import '../models/salary_model.dart';
 
 //in the following polymorphism  is being used , a quich recap it is where th esame method but opperate in a different way
 
@@ -19,4 +20,9 @@ abstract class AttendanceRepository {
   Future<List<OvertimeModel>> getExtraHours({required String employeeId});
   Future<List<ExtraPaymentModel>> getRewards({required String employeeId});
   Future<List<ExtraPaymentModel>> getPunishments({required String employeeId});
+  Future<SalaryModel> calculateSalary({
+    required String employeeId,
+    required int month,
+    required int year,
+  });
 }

lib/domain/repositories/auth_repository.dart

@@ -2,7 +2,12 @@ import 'package:dartz/dartz.dart';
 import '../../core/error/failures.dart';
 import '../models/login_request.dart';
 import '../models/login_response_model.dart';
+import '../models/change_password_request.dart';
+import '../models/general_response_model.dart';
 
 abstract class AuthRepository {
   Future<Either<Failure, LoginResponseModel>> login(LoginRequest request);
+  Future<Either<Failure, GeneralResponseModel>> changePassword(
+    ChangePasswordRequest request,
+  );
 }

lib/domain/usecases/change_password_usecase.dart

@@ -0,0 +1,17 @@
+import 'package:dartz/dartz.dart';
+import '../../core/error/failures.dart';
+import '../models/change_password_request.dart';
+import '../models/general_response_model.dart';
+import '../repositories/auth_repository.dart';
+
+class ChangePasswordUseCase {
+  final AuthRepository repository;
+
+  ChangePasswordUseCase({required this.repository});
+
+  Future<Either<Failure, GeneralResponseModel>> call(
+    ChangePasswordRequest request,
+  ) async {
+    return await repository.changePassword(request);
+  }
+}

lib/domain/usecases/get_salary_summary_usecase.dart

@@ -0,0 +1,20 @@
+import '../repositories/attendance_repository.dart';
+import '../models/salary_model.dart';
+
+class GetSalarySummaryUseCase {
+  final AttendanceRepository repository;
+
+  GetSalarySummaryUseCase(this.repository);
+
+  Future<SalaryModel> execute({
+    required String employeeId,
+    required int month,
+    required int year,
+  }) {
+    return repository.calculateSalary(
+      employeeId: employeeId,
+      month: month,
+      year: year,
+    );
+  }
+}