fix review findings

src/administration/Administration.Service/BusinessLogic/CompanyDataBusinessLogic.cs

@@ -22,6 +22,7 @@
 using Org.Eclipse.TractusX.Portal.Backend.Framework.Async;
 using Org.Eclipse.TractusX.Portal.Backend.Framework.DateTimeProvider;
 using Org.Eclipse.TractusX.Portal.Backend.Framework.ErrorHandling;
+using Org.Eclipse.TractusX.Portal.Backend.Framework.Linq;
 using Org.Eclipse.TractusX.Portal.Backend.Framework.Models;
 using Org.Eclipse.TractusX.Portal.Backend.Framework.Web;
 using Org.Eclipse.TractusX.Portal.Backend.IssuerComponent.Library.BusinessLogic;
@@ -249,17 +250,19 @@ public async Task CreateCompanyCertificate(CompanyCertificateCreationData data,
             throw new ControllerArgumentException("ExternalCertificateNumber must be alphanumeric and length should not be greater than 36");
         }
 
-        if (data.Sites != null && data.Sites.Any() && data.Sites!.Any(bpn => !BpnsRegex.IsMatch(bpn)))
+        if (data.Sites != null && data.Sites.Any(bpn => !BpnsRegex.IsMatch(bpn)))
         {
             throw new ControllerArgumentException("BPN must contain exactly 16 characters and must be prefixed with BPNS");
         }
 
-        if (data.ValidFrom?.ToUniversalTime() > DateTimeOffset.Now.ToUniversalTime())
+        var now = dateTimeProvider.OffsetNow;
+
+        if (data.ValidFrom > now)
         {
             throw new ControllerArgumentException("ValidFrom date should not be greater than current date");
         }
 
-        if (data.ValidTill?.ToUniversalTime() < DateTimeOffset.Now.ToUniversalTime())
+        if (data.ValidTill < now)
         {
             throw new ControllerArgumentException("ValidTill date should be greater than current date");
         }
@@ -305,14 +308,11 @@ private async Task HandleCompanyCertificateCreationAsync(CompanyCertificateTypeI
             {
                 x.ExternalCertificateNumber = externalCertificateNumber;
                 x.Issuer = issuer;
-                x.ValidTill = validTill?.ToUniversalTime();
-                x.ValidFrom = validFrom?.ToUniversalTime();
+                x.ValidFrom = validFrom;
+                x.ValidTill = validTill;
             });
 
-        if (sites != null && sites.Any())
-        {
-            companyCertificateRepository.CreateCompanyCertificateAssignedSites(companyCertificate.Id, sites);
-        }
+        sites?.IfAny(x => companyCertificateRepository.CreateCompanyCertificateAssignedSites(companyCertificate.Id, x));
 
         await portalRepositories.SaveAsync().ConfigureAwait(ConfigureAwaitOptions.None);
     }

src/portalbackend/PortalBackend.DBAccess/Repositories/CompanyCertificateRepository.cs

@@ -48,7 +48,7 @@ public Task<bool> CheckCompanyCertificateType(CompanyCertificateTypeId certifica
     /// <inheritdoc />
     public CompanyCertificate CreateCompanyCertificate(Guid companyId, CompanyCertificateTypeId companyCertificateTypeId, Guid docId, Action<CompanyCertificate>? setOptionalFields = null)
     {
-        var companyCertificate = new CompanyCertificate(Guid.NewGuid(), DateTimeOffset.UtcNow, companyCertificateTypeId, CompanyCertificateStatusId.ACTIVE, companyId, docId);
+        var companyCertificate = new CompanyCertificate(Guid.NewGuid(), companyCertificateTypeId, CompanyCertificateStatusId.ACTIVE, companyId, docId);
         setOptionalFields?.Invoke(companyCertificate);
         return _context.CompanyCertificates.Add(companyCertificate).Entity;
     }
@@ -71,7 +71,7 @@ public IAsyncEnumerable<CompanyCertificateBpnData> GetCompanyCertificateData(Gui
             ccb.ValidFrom,
             ccb.ValidTill,
             ccb.ExternalCertificateNumber,
-            ccb.CompaniesCertificateAssignedSites.Select(x => x.Sites),
+            ccb.CompanyCertificateAssignedSites.Select(x => x.Site),
             ccb.Issuer,
             ccb.Validator))
         .ToAsyncEnumerable();
@@ -102,7 +102,7 @@ public IAsyncEnumerable<CompanyCertificateBpnData> GetCompanyCertificateData(Gui
                 companyCertificate.ValidFrom,
                 companyCertificate.ValidTill,
                 companyCertificate.ExternalCertificateNumber,
-                companyCertificate.CompaniesCertificateAssignedSites.Select(x => x.Sites),
+                companyCertificate.CompanyCertificateAssignedSites.Select(x => x.Site),
                 companyCertificate.Issuer,
                 companyCertificate.Validator
                 ))
@@ -128,7 +128,7 @@ public IAsyncEnumerable<CompanyCertificateBpnData> GetCompanyCertificateData(Gui
 
     public void AttachAndModifyCompanyCertificateDetails(Guid id, Action<CompanyCertificate>? initialize, Action<CompanyCertificate> updateFields)
     {
-        var entity = new CompanyCertificate(id, default, default, default, Guid.Empty, Guid.Empty);
+        var entity = new CompanyCertificate(id, default, default, Guid.Empty, Guid.Empty);
         initialize?.Invoke(entity);
         _context.Attach(entity);
         updateFields.Invoke(entity);
@@ -151,5 +151,5 @@ public void AttachAndModifyCompanyCertificateDocumentDetails(Guid id, Action<Doc
     .SingleOrDefaultAsync();
 
     public void CreateCompanyCertificateAssignedSites(Guid companyCertificateId, IEnumerable<string> sites) =>
-        _context.AddRange(sites.Select(companyCertificateAssignedSite => new CompaniesCertificateAssignedSite(companyCertificateId, companyCertificateAssignedSite)));
+        _context.AddRange(sites.Select(companyCertificateAssignedSite => new CompanyCertificateAssignedSite(companyCertificateId, companyCertificateAssignedSite)));
 }

src/portalbackend/PortalBackend.Migrations/Migrations/20240527114938_2.1.0-rc1.cs

@@ -18,7 +18,6 @@
  ********************************************************************************/
 
 using Microsoft.EntityFrameworkCore.Migrations;
-using System;
 
 #nullable disable