Admin controller, Locations controller, requests to add available countries, request to get available countries

SchengenVisaApi/ApplicationLayer/DataAccessingServices/AuthServices/RegisterService/Exceptions/UserAlreadyExistsException.cs

@@ -0,0 +1,7 @@
+using ApplicationLayer.DataAccessingServices.AuthServices.Requests;
+using ApplicationLayer.GeneralExceptions;
+
+namespace ApplicationLayer.DataAccessingServices.AuthServices.RegisterService.Exceptions
+{
+    public class UserAlreadyExistsException(RegisterApplicantRequest request) : AlreadyExistsException($"User with email '{request.Email}' already exists");
+}

SchengenVisaApi/ApplicationLayer/DataAccessingServices/AuthServices/RegisterService/IRegisterService.cs

@@ -0,0 +1,11 @@
+using ApplicationLayer.DataAccessingServices.AuthServices.Requests;
+
+namespace ApplicationLayer.DataAccessingServices.AuthServices.RegisterService
+{
+    /// Handles <see cref="RegisterApplicantRequest"/>
+    public interface IRegisterService
+    {
+        /// Handle <see cref="RegisterApplicantRequest"/>
+        Task Register(RegisterApplicantRequest request, CancellationToken cancellationToken);
+    }
+}

SchengenVisaApi/ApplicationLayer/DataAccessingServices/AuthServices/RegisterService/RegisterService.cs

@@ -0,0 +1,71 @@
+using ApplicationLayer.DataAccessingServices.Applicants.NeededServices;
+using ApplicationLayer.DataAccessingServices.AuthServices.NeededServices;
+using ApplicationLayer.DataAccessingServices.AuthServices.RegisterService.Exceptions;
+using ApplicationLayer.DataAccessingServices.AuthServices.Requests;
+using ApplicationLayer.DataAccessingServices.Locations.NeededServices;
+using ApplicationLayer.GeneralNeededServices;
+using Domains.ApplicantDomain;
+using Domains.Users;
+
+namespace ApplicationLayer.DataAccessingServices.AuthServices.RegisterService
+{
+    /// <inheritdoc cref="IRegisterService"/>
+    public class RegisterService(
+        IUsersRepository users,
+        IApplicantsRepository applicants,
+        ICitiesRepository cities,
+        IUnitOfWork unitOfWork) : IRegisterService
+    {
+        async Task IRegisterService.Register(RegisterApplicantRequest request, CancellationToken cancellationToken)
+        {
+            if (await users.FindByEmailAsync(request.Email, cancellationToken) is not null)
+            {
+                throw new UserAlreadyExistsException(request);
+            }
+
+            //TODO mapper
+            var user = new User { Email = request.Email, Password = request.Password, Role = Role.Applicant };
+
+            var applicantCity = await cities.GetByIdAsync(request.CityOfBirthId, cancellationToken);
+            var placeOfWorkCity = await cities.GetByIdAsync(request.PlaceOfWork.Address.CityId, cancellationToken);
+            var placeOfWorkAddress = new Address
+            {
+                Country = placeOfWorkCity.Country,
+                City = placeOfWorkCity,
+                Building = request.PlaceOfWork.Address.Building,
+                Street = request.PlaceOfWork.Address.Street
+            };
+
+            var placeOfWork = new PlaceOfWork
+            {
+                Name = request.PlaceOfWork.Name,
+                Address = placeOfWorkAddress,
+                PhoneNum = request.PlaceOfWork.PhoneNum
+            };
+
+            var applicant = new Applicant
+            {
+                Citizenship = request.Citizenship,
+                CitizenshipByBirth = request.CitizenshipByBirth,
+                Gender = request.Gender,
+                Name = request.ApplicantName,
+                Passport = request.Passport,
+                BirthDate = request.BirthDate,
+                FatherName = request.FatherName,
+                JobTitle = request.JobTitle,
+                MaritalStatus = request.MaritalStatus,
+                MotherName = request.MotherName,
+                UserId = user.Id,
+                CityOfBirth = applicantCity,
+                CountryOfBirth = applicantCity.Country,
+                IsNonResident = request.IsNonResident,
+                PlaceOfWork = placeOfWork
+            };
+
+            await users.AddAsync(user, cancellationToken);
+            await applicants.AddAsync(applicant, cancellationToken);
+
+            await unitOfWork.SaveAsync(cancellationToken);
+        }
+    }
+}