Add LangCode property to EmailTemplate entity

Introduced a required LangCode property to the EmailTemplate entity, mapped to the LANG_CODE column in the database as varchar(5). This supports language-specific email templates.

EnvelopeGenerator.API/Controllers/AnnotationController.cs

@@ -18,7 +18,7 @@ namespace EnvelopeGenerator.API.Controllers;
 /// <summary>
 /// Manages annotations and signature lifecycle for envelopes.
 /// </summary>
-[Authorize(Roles = Role.Receiver.FullyAuth)]
+[Authorize(Policy = AuthPolicy.Receiver)]
 [ApiController]
 [Route("api/[controller]")]
 public class AnnotationController : ControllerBase
@@ -54,7 +54,7 @@ public class AnnotationController : ControllerBase
     /// </summary>
     /// <param name="psPdfKitAnnotation">Annotation payload.</param>
     /// <param name="cancel">Cancellation token.</param>
-    [Authorize(Roles = Role.Receiver.FullyAuth)]
+    [Authorize(Policy = AuthPolicy.Receiver)]
     [HttpPost]
     [Obsolete("PSPDF Kit will no longer be used.")]
     public async Task<IActionResult> CreateOrUpdate([FromBody] PsPdfKitAnnotation? psPdfKitAnnotation = null, CancellationToken cancel = default)
@@ -87,7 +87,7 @@ public class AnnotationController : ControllerBase
     /// Rejects the document for the current receiver.
     /// </summary>
     /// <param name="reason">Optional rejection reason.</param>
-    [Authorize(Roles = Role.Receiver.FullyAuth)]
+    [Authorize(Policy = AuthPolicy.Receiver)]
     [HttpPost("reject")]
     [Obsolete("Use MediatR")]
     public async Task<IActionResult> Reject([FromBody] string? reason = null)

EnvelopeGenerator.API/Controllers/AuthController.cs

@@ -1,19 +1,27 @@
-using Microsoft.AspNetCore.Authentication.Cookies;
-using Microsoft.AspNetCore.Authentication;
-using Microsoft.AspNetCore.Mvc;
-using Microsoft.AspNetCore.Authorization;
+using EnvelopeGenerator.API.Controllers.Interfaces;
 using EnvelopeGenerator.API.Models;
+using EnvelopeGenerator.Domain.Constants;
+using Microsoft.AspNetCore.Authentication;
+using Microsoft.AspNetCore.Authentication.Cookies;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Options;
 
 namespace EnvelopeGenerator.API.Controllers;
 
 /// <summary>
 /// Controller verantwortlich für die Benutzer-Authentifizierung, einschließlich Anmelden, Abmelden und Überprüfung des Authentifizierungsstatus.
 /// </summary>
-/// <param name="logger"></param>
 [Route("api/[controller]")]
 [ApiController]
-public partial class AuthController(ILogger<AuthController> logger) : ControllerBase
+public partial class AuthController(IOptions<AuthTokenKeys> authTokenKeyOptions, IAuthorizationService authService) : ControllerBase, IAuthController
 {
+    private readonly AuthTokenKeys authTokenKeys = authTokenKeyOptions.Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    public IAuthorizationService AuthService { get; } = authService;
 
     /// <summary>
     /// Entfernt das Authentifizierungs-Cookie des Benutzers (AuthCookie)
@@ -29,13 +37,19 @@ public partial class AuthController(ILogger<AuthController> logger) : Controller
     /// </remarks>
     /// <response code="200">Erfolgreich gelöscht, wenn der Benutzer ein berechtigtes Cookie hat.</response>
     /// <response code="401">Wenn es kein zugelassenes Cookie gibt, wird „nicht zugelassen“ zurückgegeben.</response>
-    [ProducesResponseType(typeof(string), StatusCodes.Status200OK, "text/javascript")]
+    [ProducesResponseType(typeof(void), StatusCodes.Status200OK)]
     [ProducesResponseType(typeof(void), StatusCodes.Status401Unauthorized)]
-    [Authorize]
+    [Authorize(Policy = AuthPolicy.SenderOrReceiver)]
     [HttpPost("logout")]
     public async Task<IActionResult> Logout()
     {
-        await HttpContext.SignOutAsync(CookieAuthenticationDefaults.AuthenticationScheme);
+        if (await this.IsUserInPolicyAsync(AuthPolicy.Sender))
+            Response.Cookies.Delete(authTokenKeys.Cookie);
+        else if (await this.IsUserInPolicyAsync(AuthPolicy.ReceiverOrReceiverTFA))
+            await HttpContext.SignOutAsync(CookieAuthenticationDefaults.AuthenticationScheme);
+        else
+            return Unauthorized();
+
         return Ok();
     }
 
@@ -51,9 +65,12 @@ public partial class AuthController(ILogger<AuthController> logger) : Controller
     /// </remarks>
     /// <response code="200">Wenn es einen autorisierten Cookie gibt.</response>
     /// <response code="401">Wenn kein Cookie vorhanden ist oder nicht autorisierte.</response>
-    [ProducesResponseType(typeof(string), StatusCodes.Status200OK, "text/javascript")]
+    [ProducesResponseType(typeof(void), StatusCodes.Status200OK)]
     [ProducesResponseType(typeof(void), StatusCodes.Status401Unauthorized)]
+    [HttpGet("check")]
     [Authorize]
-    [HttpGet]
-    public IActionResult IsAuthenticated() => Ok();
+    public IActionResult Check(string? role = null)
+        => role is not null && !User.IsInRole(role)
+            ? Unauthorized()
+            : Ok();
 }

EnvelopeGenerator.API/Controllers/DocumentController.cs

@@ -1,3 +1,4 @@
+using EnvelopeGenerator.API.Controllers.Interfaces;
 using EnvelopeGenerator.API.Extensions;
 using EnvelopeGenerator.Application.Documents.Queries;
 using EnvelopeGenerator.Domain.Constants;
@@ -16,19 +17,24 @@ namespace EnvelopeGenerator.API.Controllers;
 [Authorize]
 [ApiController]
 [Route("api/[controller]")]
-public class DocumentController(IMediator mediator, ILogger<DocumentController> logger) : ControllerBase
+public class DocumentController(IMediator mediator, IAuthorizationService authService) : ControllerBase, IAuthController
 {
+    /// <summary>
+    /// 
+    /// </summary>
+    public IAuthorizationService AuthService => authService;
+
     /// <summary>
     /// Returns the document bytes receiver.
     /// </summary>
     /// <param name="query">Encoded envelope key.</param>
     /// <param name="cancel">Cancellation token.</param>
     [HttpGet]
-    [Authorize(Roles = $"{Role.Sender},{Role.Receiver.FullyAuth}")]
+    [Authorize(Policy = AuthPolicy.SenderOrReceiver)]
     public async Task<IActionResult> GetDocument(CancellationToken cancel, [FromQuery] ReadDocumentQuery? query = null)
     {
         // Sender: expects query with envelope key
-        if (User.IsInRole(Role.Sender))
+        if (await this.IsUserInPolicyAsync(AuthPolicy.Sender))
         {
             if (query is null)
                 return BadRequest("Missing document query.");
@@ -40,7 +46,7 @@ public class DocumentController(IMediator mediator, ILogger<DocumentController>
         }
 
         // Receiver: resolve envelope id from claims
-        if (User.IsInRole(Role.Receiver.FullyAuth))
+        if (await this.IsUserInPolicyAsync(AuthPolicy.Receiver))
         {           
             if (query is not null)
                 return BadRequest("Query parameters are not allowed for receiver role.");

EnvelopeGenerator.API/Controllers/EmailTemplateController.cs

@@ -1,16 +1,14 @@
 using AutoMapper;
-using EnvelopeGenerator.Application.EmailTemplates;
-using EnvelopeGenerator.Application.EmailTemplates.Commands.Update;
-using EnvelopeGenerator.Application.EmailTemplates.Commands.Reset;
-using EnvelopeGenerator.Application.EmailTemplates.Queries.Read;
+using EnvelopeGenerator.Application.EmailTemplates.Commands;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
 using MediatR;
-using System.Threading.Tasks;
 using EnvelopeGenerator.Application.Common.Dto;
 using DigitalData.Core.Abstraction.Application.Repository;
 using EnvelopeGenerator.Domain.Entities;
 using Microsoft.EntityFrameworkCore;
+using EnvelopeGenerator.Domain.Constants;
+using EnvelopeGenerator.Application.EmailTemplates.Queries;
 
 namespace EnvelopeGenerator.API.Controllers;
 
@@ -18,32 +16,18 @@ namespace EnvelopeGenerator.API.Controllers;
 /// Controller for managing temp templates.
 /// Steuerung zur Verwaltung von E-Mail-Vorlagen.
 /// </summary>
+/// <remarks>
+/// Initialisiert eine neue Instanz der <see cref="EmailTemplateController"/>-Klasse.
+/// </remarks>
+/// <param name="mapper">
+/// <param name="repository">
+/// Die AutoMapper-Instanz, die zum Zuordnen von Objekten verwendet wird.
+/// </param>
 [Route("api/[controller]")]
 [ApiController]
-[Authorize]
-public class EmailTemplateController : ControllerBase
+[Authorize(Policy = AuthPolicy.Sender)]
+public class EmailTemplateController(IMapper mapper, IRepository<EmailTemplate> repository, IMediator mediator) : ControllerBase
 {
-    private readonly IMapper _mapper;
-
-    private readonly IRepository<EmailTemplate> _repository;
-
-    private readonly IMediator _mediator;
-
-    /// <summary>
-    /// Initialisiert eine neue Instanz der <see cref="EmailTemplateController"/>-Klasse.
-    /// </summary>
-    /// <param name="mapper">
-    /// <param name="repository">
-    /// Die AutoMapper-Instanz, die zum Zuordnen von Objekten verwendet wird.
-    /// </param>
-    [Obsolete("Use MediatR")]
-    public EmailTemplateController(IMapper mapper, IRepository<EmailTemplate> repository, IMediator mediator)
-    {
-        _mapper = mapper;
-        _repository = repository;
-        _mediator = mediator;
-    }
-
     /// <summary>
     /// Ruft E-Mail-Vorlagen basierend auf der angegebenen Abfrage ab.
     /// Gibt alles zurück, wenn keine Id- oder Typ-Informationen eingegeben wurden.
@@ -63,12 +47,12 @@ public class EmailTemplateController : ControllerBase
     {
         if (emailTemplate is null || (emailTemplate.Id is null && emailTemplate.Type is null))
         {
-            var temps = await _repository.Query.ToListAsync();
-            return Ok(_mapper.Map<IEnumerable<EmailTemplateDto>>(temps));
+            var temps = await repository.Query.ToListAsync();
+            return Ok(mapper.Map<IEnumerable<EmailTemplateDto>>(temps));
         }
         else
         {
-            var temp = await _mediator.Send(emailTemplate);
+            var temp = await mediator.Send(emailTemplate);
             return temp is null ? NotFound() : Ok(temp);
         }
     }
@@ -77,40 +61,17 @@ public class EmailTemplateController : ControllerBase
     /// Updates an temp template or resets it if no update command is provided.
     /// Aktualisiert eine E-Mail-Vorlage oder setzt sie zurück, wenn kein Aktualisierungsbefehl angegeben ist.
     /// </summary>
-    /// <param name="temp">Die E-Mail-Vorlagenabfrage.</param>
-    /// <param name="update">Der Aktualisierungsbefehl für die E-Mail-Vorlage.
-    /// Wird auf Standardwert aktualisiert, wenn die Anfrage ohne http-Body gesendet wird.
-    /// </param>
-    /// <returns>Gibt HTTP-Antwort zurück</returns>
-    /// <remarks>
-    /// Sample request:
-    /// PUT /api/EmailTemplate
-    /// {
-    ///     "emailTemplateId": 123,
-    ///     "newContent": "Updated content"
-    /// }
-    /// </remarks>
+    /// <param name="update"></param>
+    /// <param name="cancel"></param>
+    /// <returns></returns>
     /// <response code="200">Wenn die E-Mail-Vorlage erfolgreich aktualisiert oder zurückgesetzt wird.</response>
     /// <response code="400">Wenn die Abfrage ohne einen String gesendet wird.</response>
     /// <response code="401">Wenn der Benutzer nicht authentifiziert ist.</response>
     /// <response code="404">Wenn die gesuchte Abfrage nicht gefunden wird.</response>
     [HttpPut]
-    public async Task<IActionResult> Update([FromQuery] EmailTemplateQuery? temp = null, [FromBody] UpdateEmailTemplateCommand? update = null)
+    public async Task<IActionResult> Update([FromBody] UpdateEmailTemplateCommand update, CancellationToken cancel)
     {
-        if (update is null)
-        {
-            await _mediator.Send(new ResetEmailTemplateCommand(temp));
-            return Ok();
-        }
-        else if (temp is null)
-        {
-            return BadRequest("No both id and type");
-        }
-        else
-        {
-            update.EmailTemplateQuery = temp;
-            await _mediator.Send(update);
-            return Ok();
-        }
+        await mediator.Send(update, cancel);
+        return Ok();
     }
 }

EnvelopeGenerator.API/Controllers/Interfaces/IAuthController.cs

@@ -0,0 +1,38 @@
+using System.Security.Claims;
+using Microsoft.AspNetCore.Authorization;
+
+namespace EnvelopeGenerator.API.Controllers.Interfaces;
+
+/// <summary>
+/// 
+/// </summary>
+public interface IAuthController
+{
+    /// <summary>
+    /// 
+    /// </summary>
+    IAuthorizationService AuthService { get; }
+
+    /// <summary>
+    /// 
+    /// </summary>
+    ClaimsPrincipal User { get; }
+}
+
+/// <summary>
+/// 
+/// </summary>
+public static class AuthControllerExtensions
+{
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="controller"></param>
+    /// <param name="policyName"></param>
+    /// <returns></returns>
+    public static async Task<bool> IsUserInPolicyAsync(this IAuthController controller, string policyName)
+    {
+        var result = await controller.AuthService.AuthorizeAsync(controller.User, policyName);
+        return result.Succeeded;
+    }
+}

EnvelopeGenerator.API/Controllers/ReadOnlyController.cs

@@ -37,7 +37,7 @@ public class ReadOnlyController : ControllerBase
     /// </summary>
     /// <param name="createDto">Creation payload.</param>
     [HttpPost]
-    [Authorize(Roles = Role.Receiver.FullyAuth)]
+    [Authorize(Policy = AuthPolicy.Receiver)]
     public async Task<IActionResult> CreateAsync([FromBody] EnvelopeReceiverReadOnlyCreateDto createDto)
     {
         var authReceiverMail = User.GetReceiverMailOfReceiver();

EnvelopeGenerator.API/Controllers/TfaRegistrationController.cs

@@ -111,7 +111,7 @@ public class TfaRegistrationController : ControllerBase
     /// <summary>
     /// Logs out the envelope receiver from cookie authentication.
     /// </summary>
-    [Authorize(Roles = Role.FullyAuth)]
+    [Authorize(Policy = AuthPolicy.Receiver)]
     [HttpPost("auth/logout")]
     public async Task<IActionResult> LogOutAsync()
     {

EnvelopeGenerator.API/Program.cs

@@ -1,6 +1,7 @@
 using DigitalData.Core.API;
 using DigitalData.Core.Application;
 using EnvelopeGenerator.Infrastructure;
+using EnvelopeGenerator.Domain.Constants;
 using Microsoft.AspNetCore.Authentication.Cookies;
 using Microsoft.AspNetCore.Localization;
 using Microsoft.EntityFrameworkCore;
@@ -93,7 +94,7 @@ try
             {
                 Reference = new OpenApiReference
                 {
-                    Type = ReferenceType.SecurityScheme,
+                    Type = Microsoft.OpenApi.Models.ReferenceType.SecurityScheme,
                     Id = "Bearer"
                 }
             },
@@ -176,6 +177,16 @@ try
         options.SlidingExpiration = true;
     });
 
+    builder.Services.AddAuthorizationBuilder()
+        .AddPolicy(AuthPolicy.SenderOrReceiver, policy =>
+            policy.RequireRole(Role.Sender, Role.Receiver.Full))
+        .AddPolicy(AuthPolicy.Sender, policy =>
+            policy.RequireRole(Role.Sender))
+        .AddPolicy(AuthPolicy.Receiver, policy =>
+            policy.RequireRole(Role.Receiver.Full))
+        .AddPolicy(AuthPolicy.ReceiverTFA, policy =>
+            policy.RequireRole(Role.Receiver.TFA));
+
     // User manager
 #pragma warning disable CS0618 // Type or member is obsolete
     builder.Services.AddUserManager<EGDbContext>();

EnvelopeGenerator.Application/Common/Commands/CreateCommandHandler.cs

@@ -0,0 +1,36 @@
+using DigitalData.Core.Abstraction.Application.Repository;
+using MediatR;
+
+namespace EnvelopeGenerator.Application.Common.Commands;
+
+/// <summary>
+/// 
+/// </summary>
+/// <typeparam name="TCommand"></typeparam>
+/// <typeparam name="TEntity"></typeparam>
+public class CreateCommandHandler<TCommand, TEntity> : IRequestHandler<TCommand, TEntity>
+    where TCommand : class, IRequest<TEntity>
+    where TEntity : class
+{
+    /// <summary>
+    /// 
+    /// </summary>
+    protected readonly IRepository<TEntity> Repository;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="repository"></param>
+    public CreateCommandHandler(IRepository<TEntity> repository)
+    {
+        Repository = repository;
+    }
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="request"></param>
+    /// <param name="cancel"></param>
+    /// <returns></returns>
+    public Task<TEntity> Handle(TCommand request, CancellationToken cancel) => Repository.CreateAsync(request, cancel);
+}

EnvelopeGenerator.Application/Common/Commands/UpdateCommand.cs

@@ -0,0 +1,59 @@
+using DigitalData.Core.Abstraction.Application.Repository;
+using MediatR;
+using System.Linq.Expressions;
+
+namespace EnvelopeGenerator.Application.Common.Commands;
+
+/// <summary>
+/// 
+/// </summary>
+/// <typeparam name="TUpdateDto"></typeparam>
+/// <typeparam name="TEntity"></typeparam>
+public abstract record UpdateCommand<TUpdateDto, TEntity> : IRequest where TUpdateDto : class where TEntity : class
+{
+    /// <summary>
+    /// 
+    /// </summary>
+    public TUpdateDto Update { get; init; } = null!;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <returns></returns>
+    public abstract Expression<Func<TEntity, bool>> BuildQueryExpression();
+}
+
+/// <summary>
+/// 
+/// </summary>
+/// <typeparam name="TCommand"></typeparam>
+/// <typeparam name="TUpdateDto"></typeparam>
+/// <typeparam name="TEntity"></typeparam>
+public class UpdateCommandHandler<TCommand, TUpdateDto, TEntity> : IRequestHandler<TCommand>
+    where TUpdateDto : class
+    where TEntity : class
+    where TCommand : UpdateCommand<TUpdateDto, TEntity>
+{
+    /// <summary>
+    /// 
+    /// </summary>
+    protected readonly IRepository<TEntity> Repository;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="repository"></param>
+    public UpdateCommandHandler(IRepository<TEntity> repository)
+    {
+        Repository = repository;
+    }
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="request"></param>
+    /// <param name="cancel"></param>
+    /// <returns></returns>
+    public Task Handle(TCommand request, CancellationToken cancel)
+        => Repository.UpdateAsync(request.Update, request.BuildQueryExpression(), cancel);
+}

EnvelopeGenerator.Application/Common/Dto/EmailTemplateDto.cs

@@ -1,31 +1,37 @@
-using Microsoft.AspNetCore.Mvc;
+namespace EnvelopeGenerator.Application.Common.Dto;
 
-namespace EnvelopeGenerator.Application.Common.Dto
+/// <summary>
+/// 
+/// </summary>
+public record EmailTemplateDto
 {
     /// <summary>
     /// 
     /// </summary>
-    [ApiExplorerSettings(IgnoreApi = true)]
-    public record EmailTemplateDto
-    {
-        /// <summary>
-        /// 
-        /// </summary>
-        public int Id{ get; init; }
+    public int Id { get; init; }
 
-        /// <summary>
-        /// 
-        /// </summary>
-        public required string Name { get; init; }
+    /// <summary>
+    /// 
+    /// </summary>
+    public required string Name { get; init; }
 
-        /// <summary>
-        /// 
-        /// </summary>
-        public required string Body { get; set; }
+    /// <summary>
+    /// Das Datum und die Uhrzeit, wann die Vorlage hinzugefügt wurde.
+    /// </summary>
+    public DateTime AddedWhen { get; init; }
 
-        /// <summary>
-        /// 
-        /// </summary>
-        public required string Subject { get; set; }
-    };
-}
+    /// <summary>
+    /// Der Inhalt (Body) der E-Mail-Vorlage. Kann null sein.
+    /// </summary>
+    public string? Body { get; init; }
+
+    /// <summary>
+    /// Der Betreff der E-Mail-Vorlage. Kann null sein.
+    /// </summary>
+    public string? Subject { get; init; }
+
+    /// <summary>
+    /// Das Datum und die Uhrzeit, wann die Vorlage zuletzt geändert wurde. Kann null sein.
+    /// </summary>
+    public DateTime? ChangedWhen { get; init; }
+};

EnvelopeGenerator.Application/Common/Dto/MappingProfile.cs

@@ -28,8 +28,8 @@ public class MappingProfile : Profile
         CreateMap<EmailTemplate, EmailTemplateDto>();
         CreateMap<Envelope, EnvelopeDto>();
         CreateMap<Document, DocumentDto>();
-        CreateMap<Domain.Entities.History, HistoryDto>();
-        CreateMap<Domain.Entities.History, HistoryCreateDto>();
+        CreateMap<Domain.Entities.History, HistoryDto>().ForMember(dest => dest.ActionDate, opt => opt.MapFrom(src => src.ChangedWhen));
+        CreateMap<Domain.Entities.History, HistoryCreateDto>().ForMember(dest => dest.ActionDate, opt => opt.MapFrom(src => src.ChangedWhen));
         CreateMap<Domain.Entities.EnvelopeReceiver, EnvelopeReceiverDto>();
         CreateMap<Domain.Entities.EnvelopeReceiver, EnvelopeReceiverSecretDto>();
         CreateMap<EnvelopeType, EnvelopeTypeDto>();
@@ -44,15 +44,15 @@ public class MappingProfile : Profile
         CreateMap<EmailTemplateDto, EmailTemplate>();
         CreateMap<EnvelopeDto, Envelope>();
         CreateMap<DocumentDto, Document>();
-        CreateMap<HistoryDto, Domain.Entities.History>();
-        CreateMap<HistoryCreateDto, Domain.Entities.History>();
+        CreateMap<HistoryDto, Domain.Entities.History>().ForMember(dest => dest.ChangedWhen, opt => opt.MapFrom(src => src.ActionDate));
+        CreateMap<HistoryCreateDto, Domain.Entities.History>().ForMember(dest => dest.ChangedWhen, opt => opt.MapFrom(src => src.ActionDate));
         CreateMap<EnvelopeReceiverDto, Domain.Entities.EnvelopeReceiver>();
         CreateMap<EnvelopeTypeDto, EnvelopeType>();
         CreateMap<ReceiverDto, Domain.Entities.Receiver>().ForMember(rcv => rcv.EnvelopeReceivers, rcvReadDto => rcvReadDto.Ignore());
         CreateMap<EnvelopeReceiverReadOnlyCreateDto, Domain.Entities.EnvelopeReceiverReadOnly>();
         CreateMap<EnvelopeReceiverReadOnlyUpdateDto, Domain.Entities.EnvelopeReceiverReadOnly>();
         CreateMap<AnnotationCreateDto, ElementAnnotation>()
-            .ForMember(dest => dest.AddedWhen, opt => opt.MapFrom(_ => DateTime.UtcNow));
+            .MapAddedWhen();
 
         // Messaging mappings
         // for GTX messaging

EnvelopeGenerator.Application/Common/Extensions/AutoMapperAuditingExtensions.cs

@@ -0,0 +1,24 @@
+using AutoMapper;
+using EnvelopeGenerator.Domain.Interfaces.Auditing;
+
+namespace EnvelopeGenerator.Application.Common.Extensions;
+
+/// <summary>
+/// Extension methods for applying auditing timestamps during AutoMapper mappings.
+/// </summary>
+public static class AutoMapperAuditingExtensions
+{
+    /// <summary>
+    /// Maps <see cref="IHasAddedWhen.AddedWhen"/> to the current UTC time.
+    /// </summary>
+    public static IMappingExpression<TSource, TDestination> MapAddedWhen<TSource, TDestination>(this IMappingExpression<TSource, TDestination> expression)
+        where TDestination : IHasAddedWhen
+        => expression.ForMember(dest => dest.AddedWhen, opt => opt.MapFrom(_ => DateTime.UtcNow));
+
+    /// <summary>
+    /// Maps <see cref="IHasChangedWhen.ChangedWhen"/> to the current UTC time.
+    /// </summary>
+    public static IMappingExpression<TSource, TDestination> MapChangedWhen<TSource, TDestination>(this IMappingExpression<TSource, TDestination> expression)
+        where TDestination : IHasChangedWhen
+        => expression.ForMember(dest => dest.ChangedWhen, opt => opt.MapFrom(_ => DateTime.UtcNow));
+}

EnvelopeGenerator.Application/DocStatus/Commands/CreateDocStatusCommand.cs

@@ -1,12 +1,31 @@
-namespace EnvelopeGenerator.Application.DocStatus.Commands;
+using DigitalData.Core.Abstraction.Application.Repository;
+using EnvelopeGenerator.Application.Common.Commands;
+using EnvelopeGenerator.Domain.Entities;
+using MediatR;
+
+namespace EnvelopeGenerator.Application.DocStatus.Commands;
 
 /// <summary>
 /// 
 /// </summary>
-public record CreateDocStatusCommand : ModifyDocStatusCommandBase
+public record CreateDocStatusCommand : ModifyDocStatusCommandBase, IRequest<DocumentStatus>
 {
     /// <summary>
     /// Gets timestamp when this record was added. Returns the StatusChangedWhen value.
     /// </summary>
     public DateTime AddedWhen => StatusChangedWhen;
+}
+
+/// <summary>
+/// 
+/// </summary>
+public class CreateDocStatusCommandHandler : CreateCommandHandler<CreateDocStatusCommand, DocumentStatus>
+{
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="repository"></param>
+    public CreateDocStatusCommandHandler(IRepository<DocumentStatus> repository) : base(repository)
+    {
+    }
 }

EnvelopeGenerator.Application/DocStatus/MappingProfile.cs

@@ -1,4 +1,5 @@
 using AutoMapper;
+using EnvelopeGenerator.Application.Common.Extensions;
 using EnvelopeGenerator.Application.DocStatus.Commands;
 using EnvelopeGenerator.Domain.Entities;
 
@@ -16,10 +17,12 @@ public class MappingProfile : Profile
     {
         CreateMap<CreateDocStatusCommand, DocumentStatus>()
         .ForMember(dest => dest.Envelope, opt => opt.Ignore())
-        .ForMember(dest => dest.Receiver, opt => opt.Ignore());
+        .ForMember(dest => dest.Receiver, opt => opt.Ignore())
+        .MapAddedWhen();
 
         CreateMap<UpdateDocStatusCommand, DocumentStatus>()
         .ForMember(dest => dest.Envelope, opt => opt.Ignore())
-        .ForMember(dest => dest.Receiver, opt => opt.Ignore());
+        .ForMember(dest => dest.Receiver, opt => opt.Ignore())
+        .MapChangedWhen();
     }
 }

EnvelopeGenerator.Application/EmailTemplates/Commands/Reset/ResetEmailTemplateCommand.cs

@@ -1,41 +0,0 @@
-using EnvelopeGenerator.Domain;
-using EnvelopeGenerator.Domain.Constants;
-using MediatR;
-
-namespace EnvelopeGenerator.Application.EmailTemplates.Commands.Reset;
-
-/// <summary>
-/// Ein Befehl zum Zurücksetzen einer E-Mail-Vorlage auf die Standardwerte.
-/// Erbt von <see cref="EmailTemplateQuery"/> und ermöglicht die Angabe einer optionalen ID und eines Typs der E-Mail-Vorlage.<br/><br/>
-/// Beispiele:<br/>
-/// 0 - DocumentReceived: Benachrichtigung über den Empfang eines Dokuments.<br/>
-/// 1 - DocumentSigned: Benachrichtigung über die Unterzeichnung eines Dokuments.<br/>
-/// 2 - DocumentDeleted: Benachrichtigung über das Löschen eines Dokuments.<br/>
-/// 3 - DocumentCompleted: Benachrichtigung über den Abschluss eines Dokuments.<br/>
-/// 4 - DocumentAccessCodeReceived: Benachrichtigung über den Erhalt eines Zugangscodes.<br/>
-/// 5 - DocumentShared: Benachrichtigung über das Teilen eines Dokuments.<br/>
-/// 6 - TotpSecret: Benachrichtigung über ein TOTP-Geheimnis.<br/>
-/// 7 - DocumentRejected_ADM (Für den Absender): Mail an den Absender, wenn das Dokument abgelehnt wird.<br/>
-/// 8 - DocumentRejected_REC (Für den ablehnenden Empfänger): Mail an den ablehnenden Empfänger, wenn das Dokument abgelehnt wird.<br/>
-/// 9 - DocumentRejected_REC_2 (Für sonstige Empfänger): Mail an andere Empfänger (Brief), wenn das Dokument abgelehnt wird.<br/>
-/// </summary>
-public record ResetEmailTemplateCommand : EmailTemplateQuery, IRequest
-{
-    /// <summary>
-    /// 
-    /// </summary>
-    /// <param name="orginal"></param>
-    public ResetEmailTemplateCommand(EmailTemplateQuery? orginal = null) : base(orginal ?? new())
-    {
-
-    }
-
-    /// <summary>
-    /// 
-    /// </summary>
-    /// <param name="Id">Die optionale ID der E-Mail-Vorlage, die zurückgesetzt werden soll.</param>
-    /// <param name="Type">Der Typ der E-Mail-Vorlage, z. B. <see cref="EmailTemplateType"/> (optional).</param>
-    public ResetEmailTemplateCommand(int? Id = null, EmailTemplateType? Type = null) : base(Id, Type)
-    {
-    }
-};

EnvelopeGenerator.Application/EmailTemplates/Commands/ResetEmailTemplateCommand.cs

@@ -1,11 +1,38 @@
 using DigitalData.Core.Abstraction.Application.Repository;
+using EnvelopeGenerator.Domain.Constants;
+using MediatR;
 using EnvelopeGenerator.Application.Common.Dto;
 using EnvelopeGenerator.Domain.Entities;
-using MediatR;
 using Microsoft.EntityFrameworkCore;
-using System.Linq;
 
-namespace EnvelopeGenerator.Application.EmailTemplates.Commands.Reset;
+namespace EnvelopeGenerator.Application.EmailTemplates.Commands;
+
+/// <summary>
+/// Ein Befehl zum Zurücksetzen einer E-Mail-Vorlage auf die Standardwerte.
+/// Erbt von <see cref="IEmailTemplateQuery"/> und ermöglicht die Angabe einer optionalen ID und eines Typs der E-Mail-Vorlage.<br/><br/>
+/// </summary>
+public record ResetEmailTemplateCommand : IEmailTemplateQuery, IRequest
+{
+    /// <summary>
+    /// Die eindeutige Kennung der E-Mail-Vorlage (optional).
+    /// </summary>
+    public int? Id { get; set; }
+
+    /// <summary>
+    /// Der Typ der E-Mail-Vorlage, z. B. <see cref="EmailTemplateType"/> (optional). Beispiele:<br/>
+    /// 0 - DocumentReceived: Benachrichtigung über den Empfang eines Dokuments.<br/>
+    /// 1 - DocumentSigned: Benachrichtigung über die Unterzeichnung eines Dokuments.<br/>
+    /// 2 - DocumentDeleted: Benachrichtigung über das Löschen eines Dokuments.<br/>
+    /// 3 - DocumentCompleted: Benachrichtigung über den Abschluss eines Dokuments.<br/>
+    /// 4 - DocumentAccessCodeReceived: Benachrichtigung über den Erhalt eines Zugangscodes.<br/>
+    /// 5 - DocumentShared: Benachrichtigung über das Teilen eines Dokuments.<br/>
+    /// 6 - TotpSecret: Benachrichtigung über ein TOTP-Geheimnis.<br/>
+    /// 7 - DocumentRejected_ADM (für den Absender): Mail an den Absender, wenn das Dokument abgelehnt wird.<br/>
+    /// 8 - DocumentRejected_REC (für den ablehnenden Empfänger): Mail an den ablehnenden Empfänger, wenn das Dokument abgelehnt wird.<br/>
+    /// 9 - DocumentRejected_REC_2 (für sonstige Empfänger): Mail an andere Empfänger (Brief), wenn das Dokument abgelehnt wird.
+    /// </summary>
+    public EmailTemplateType? Type { get; set; }
+}
 
 /// <summary>
 /// 
@@ -41,7 +68,7 @@ public class ResetEmailTemplateCommandHandler : IRequestHandler<ResetEmailTempla
         foreach (var temp in temps)
         {
             var def = Defaults.Where(t => t.Name == temp.Name).FirstOrDefault();
-            if(def is not null)
+            if (def is not null)
                 await _repository.UpdateAsync(def, t => t.Id == temp.Id, cancel);
         }
     }
@@ -113,4 +140,4 @@ public class ResetEmailTemplateCommandHandler : IRequestHandler<ResetEmailTempla
         }
     };
 
-}
+}

EnvelopeGenerator.Application/EmailTemplates/Commands/Update/UpdateEmailTemplateCommand.cs

@@ -1,29 +0,0 @@
-using MediatR;
-using System.Text.Json.Serialization;
-
-namespace EnvelopeGenerator.Application.EmailTemplates.Commands.Update;
-
-
-/// <summary>
-/// Befehl zum Aktualisieren einer E-Mail-Vorlage.
-/// </summary>
-/// <param name="Body">
-/// (Optional)Der neue Inhalt des E-Mail-Textkörpers. Wenn null, bleibt der vorhandene Inhalt unverändert.
-/// </param>
-/// <param name="Subject">
-/// (Optional) Der neue Betreff der E-Mail. Wenn null, bleibt der vorhandene Betreff unverändert.
-/// </param>
-public record UpdateEmailTemplateCommand(string? Body = null, string? Subject = null) : IRequest
-{
-    /// <param>
-    /// Die Abfrage, die die E-Mail-Vorlage darstellt, die aktualisiert werden soll.
-    /// </param>
-    [JsonIgnore]
-    public EmailTemplateQuery? EmailTemplateQuery { get; set; }
-
-    /// <summary>
-    /// 
-    /// </summary>
-    [JsonIgnore]
-    public DateTime ChangedWhen { get; init; } = DateTime.Now;
-}

EnvelopeGenerator.Application/EmailTemplates/Commands/Update/UpdateEmailTemplateCommandHandler.cs

@@ -1,73 +0,0 @@
-using AutoMapper;
-using DigitalData.Core.Abstraction.Application.Repository;
-using DigitalData.Core.Exceptions;
-using EnvelopeGenerator.Domain.Entities;
-using MediatR;
-using Microsoft.EntityFrameworkCore;
-using EnvelopeGenerator.Domain.Constants;
-using EnvelopeGenerator.Application.Common.Dto;
-
-namespace EnvelopeGenerator.Application.EmailTemplates.Commands.Update;
-
-/// <summary>
-/// 
-/// </summary>
-public class UpdateEmailTemplateCommandHandler : IRequestHandler<UpdateEmailTemplateCommand>
-{
-    private readonly IRepository<EmailTemplate> _repository;
-    
-    private readonly IMapper _mapper;
-
-    /// <summary>
-    /// 
-    /// </summary>
-    /// <param name="repository"></param>
-    /// <param name="mapper"></param>
-    public UpdateEmailTemplateCommandHandler(IRepository<EmailTemplate> repository, IMapper mapper)
-    {
-        _repository = repository;
-        _mapper = mapper;
-    }
-
-    /// <summary>
-    /// 
-    /// </summary>
-    /// <param name="request"></param>
-    /// <param name="cancel"></param>
-    /// <returns></returns>
-    /// <exception cref="InvalidOperationException"></exception>
-    /// <exception cref="NotFoundException"></exception>
-    [Obsolete("Use Read-method returning IReadQuery<TEntity> instead.")]
-    public async Task Handle(UpdateEmailTemplateCommand request, CancellationToken cancel)
-    {
-        EmailTemplateDto? tempDto;
-
-        if (request.EmailTemplateQuery?.Id is int id)
-        {
-            var temp = await _repository.ReadOnly().Where(t => t.Id == id).FirstOrDefaultAsync(cancel);
-            tempDto = _mapper.Map<EmailTemplateDto>(temp);
-        }
-        else if (request!.EmailTemplateQuery!.Type is EmailTemplateType type)
-        {
-            var temp = await _repository.ReadOnly().Where(t => t.Name == type.ToString()).FirstOrDefaultAsync(cancel);
-            tempDto = _mapper.Map<EmailTemplateDto>(temp);
-        }
-        else
-        {
-            throw new InvalidOperationException("Both id and type is null. Id: " + request.EmailTemplateQuery.Id +". Type: " + request.EmailTemplateQuery.Type.ToString());
-        }
-
-        if (tempDto == null)
-        {
-            throw new NotFoundException();
-        }
-
-        if (request.Body is not null)
-            tempDto.Body = request.Body;
-
-        if (request.Subject is not null)
-            tempDto.Subject = request.Subject;
-
-        await _repository.UpdateAsync(tempDto, t => t.Id == tempDto.Id, cancel);
-    }
-}

EnvelopeGenerator.Application/EmailTemplates/Commands/UpdateEmailTemplateCommand.cs

@@ -0,0 +1,63 @@
+using DigitalData.Core.Abstraction.Application.Repository;
+using EnvelopeGenerator.Application.Common.Commands;
+using EnvelopeGenerator.Domain.Constants;
+using EnvelopeGenerator.Domain.Entities;
+using System.Linq.Expressions;
+
+namespace EnvelopeGenerator.Application.EmailTemplates.Commands;
+
+/// <summary>
+/// 
+/// </summary>
+/// <param name="Body"></param>
+/// <param name="Subject"></param>
+public record EmailTemplateUpdateDto(string Body, string Subject);
+
+/// <summary>
+/// Befehl zum Aktualisieren einer E-Mail-Vorlage.
+/// </summary>
+public record UpdateEmailTemplateCommand : UpdateCommand<EmailTemplateUpdateDto, EmailTemplate>, IEmailTemplateQuery
+{
+    /// <summary>
+    /// Die eindeutige Kennung der E-Mail-Vorlage (optional).
+    /// </summary>
+    public int? Id { get; set; }
+
+    /// <summary>
+    /// Der Typ der E-Mail-Vorlage, z. B. <see cref="EmailTemplateType"/> (optional). Beispiele:<br/>
+    /// 0 - DocumentReceived: Benachrichtigung über den Empfang eines Dokuments.<br/>
+    /// 1 - DocumentSigned: Benachrichtigung über die Unterzeichnung eines Dokuments.<br/>
+    /// 2 - DocumentDeleted: Benachrichtigung über das Löschen eines Dokuments.<br/>
+    /// 3 - DocumentCompleted: Benachrichtigung über den Abschluss eines Dokuments.<br/>
+    /// 4 - DocumentAccessCodeReceived: Benachrichtigung über den Erhalt eines Zugangscodes.<br/>
+    /// 5 - DocumentShared: Benachrichtigung über das Teilen eines Dokuments.<br/>
+    /// 6 - TotpSecret: Benachrichtigung über ein TOTP-Geheimnis.<br/>
+    /// 7 - DocumentRejected_ADM (für den Absender): Mail an den Absender, wenn das Dokument abgelehnt wird.<br/>
+    /// 8 - DocumentRejected_REC (für den ablehnenden Empfänger): Mail an den ablehnenden Empfänger, wenn das Dokument abgelehnt wird.<br/>
+    /// 9 - DocumentRejected_REC_2 (für sonstige Empfänger): Mail an andere Empfänger (Brief), wenn das Dokument abgelehnt wird.
+    /// </summary>
+    public EmailTemplateType? Type { get; set; }
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <returns></returns>
+    public override Expression<Func<EmailTemplate, bool>> BuildQueryExpression()
+        => Id is int id
+            ? temp => temp.Id == id
+            : temp => temp!.Name == Type.ToString();
+}
+
+/// <summary>
+/// 
+/// </summary>
+public class UpdateEmailTemplateCommandHandler : UpdateCommandHandler<UpdateEmailTemplateCommand, EmailTemplateUpdateDto, EmailTemplate>
+{
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="repository"></param>
+    public UpdateEmailTemplateCommandHandler(IRepository<EmailTemplate> repository) : base(repository)
+    {
+    }
+}

EnvelopeGenerator.Application/EmailTemplates/EmailTemplateQuery.cs

@@ -1,24 +0,0 @@
-using EnvelopeGenerator.Domain.Constants;
-
-namespace EnvelopeGenerator.Application.EmailTemplates;
-
-/// <summary>
-/// Repräsentiert eine Abfrage für E-Mail-Vorlagen, die für Absender und Empfänger von Umschlägen verwendet werden.
-/// Die Standardkultur ist "de-DE".
-/// </summary>
-/// <param name="Id">Die eindeutige Kennung der E-Mail-Vorlage (optional).</param>
-/// <param name="Type">Der Typ der E-Mail-Vorlage, z. B. <see cref="EmailTemplateType"/> (optional). Beispiele:
-/// 0 - DocumentReceived: Benachrichtigung über den Empfang eines Dokuments.
-/// 1 - DocumentSigned: Benachrichtigung über die Unterzeichnung eines Dokuments.
-/// 2 - DocumentDeleted: Benachrichtigung über das Löschen eines Dokuments.
-/// 3 - DocumentCompleted: Benachrichtigung über den Abschluss eines Dokuments.
-/// 4 - DocumentAccessCodeReceived: Benachrichtigung über den Erhalt eines Zugangscodes.
-/// 5 - DocumentShared: Benachrichtigung über das Teilen eines Dokuments.
-/// 6 - TotpSecret: Benachrichtigung über ein TOTP-Geheimnis.
-/// 7 - DocumentRejected_ADM (Für den Absender): Mail an den Absender, wenn das Dokument abgelehnt wird.
-/// 8 - DocumentRejected_REC (Für den ablehnenden Empfänger): Mail an den ablehnenden Empfänger, wenn das Dokument abgelehnt wird.
-/// 9 - DocumentRejected_REC_2 (Für sonstige Empfänger): Mail an andere Empfänger (Brief), wenn das Dokument abgelehnt wird.
-/// </param>
-public record EmailTemplateQuery(int? Id = null, EmailTemplateType? Type = null)
-{
-}

EnvelopeGenerator.Application/EmailTemplates/IEmailTemplateQuery.cs

@@ -0,0 +1,30 @@
+using EnvelopeGenerator.Domain.Constants;
+
+namespace EnvelopeGenerator.Application.EmailTemplates;
+
+/// <summary>
+/// Stellt eine Schnittstelle für Abfragen von E-Mail-Vorlagen dar, die für Absender und Empfänger von Umschlägen verwendet werden.
+/// Die Standardkultur ist "de-DE".
+/// </summary>
+public interface IEmailTemplateQuery
+{
+    /// <summary>
+    /// Die eindeutige Kennung der E-Mail-Vorlage (optional).
+    /// </summary>
+    int? Id { get; set; }
+
+    /// <summary>
+    /// Der Typ der E-Mail-Vorlage, z. B. <see cref="EmailTemplateType"/> (optional). Beispiele:<br/>
+    /// 0 - DocumentReceived: Benachrichtigung über den Empfang eines Dokuments.<br/>
+    /// 1 - DocumentSigned: Benachrichtigung über die Unterzeichnung eines Dokuments.<br/>
+    /// 2 - DocumentDeleted: Benachrichtigung über das Löschen eines Dokuments.<br/>
+    /// 3 - DocumentCompleted: Benachrichtigung über den Abschluss eines Dokuments.<br/>
+    /// 4 - DocumentAccessCodeReceived: Benachrichtigung über den Erhalt eines Zugangscodes.<br/>
+    /// 5 - DocumentShared: Benachrichtigung über das Teilen eines Dokuments.<br/>
+    /// 6 - TotpSecret: Benachrichtigung über ein TOTP-Geheimnis.<br/>
+    /// 7 - DocumentRejected_ADM (für den Absender): Mail an den Absender, wenn das Dokument abgelehnt wird.<br/>
+    /// 8 - DocumentRejected_REC (für den ablehnenden Empfänger): Mail an den ablehnenden Empfänger, wenn das Dokument abgelehnt wird.<br/>
+    /// 9 - DocumentRejected_REC_2 (für sonstige Empfänger): Mail an andere Empfänger (Brief), wenn das Dokument abgelehnt wird.
+    /// </summary>
+    EmailTemplateType? Type { get; set; }
+}

EnvelopeGenerator.Application/EmailTemplates/MappingProfile.cs

@@ -1,24 +1,24 @@
-using AutoMapper;
-using EnvelopeGenerator.Application.EmailTemplates.Queries.Read;
+using AutoMapper;
+using EnvelopeGenerator.Application.Common.Dto;
+using EnvelopeGenerator.Application.Common.Extensions;
+using EnvelopeGenerator.Application.EmailTemplates.Commands;
 using EnvelopeGenerator.Domain.Entities;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
 namespace EnvelopeGenerator.Application.EmailTemplates;
 
 /// <summary>
-/// 
+///
 /// </summary>
 public class MappingProfile : Profile
 {
     /// <summary>
-    /// 
+    ///
     /// </summary>
     public MappingProfile()
     {
-        CreateMap<EmailTemplate, ReadEmailTemplateResponse>();
+        CreateMap<EmailTemplate, EmailTemplateDto>();
+
+        CreateMap<EmailTemplateUpdateDto, EmailTemplate>()
+            .MapChangedWhen();
     }
-}
+}

EnvelopeGenerator.Application/EmailTemplates/Queries/Read/ReadEmailTemplateQuery.cs

@@ -1,12 +0,0 @@
-using MediatR;
-
-namespace EnvelopeGenerator.Application.EmailTemplates.Queries.Read;
-
-
-/// <summary>
-/// Stellt eine Abfrage dar, um eine E-Mail-Vorlage zu lesen.
-/// Diese Klasse erbt von <see cref="EmailTemplateQuery"/>.
-/// </summary>
-public record ReadEmailTemplateQuery : EmailTemplateQuery, IRequest<ReadEmailTemplateResponse?>
-{
-}

EnvelopeGenerator.Application/EmailTemplates/Queries/Read/ReadEmailTemplateQueryHandler.cs

@@ -1,52 +0,0 @@
-using AutoMapper;
-using EnvelopeGenerator.Application.Common.Interfaces.Repositories;
-using EnvelopeGenerator.Domain.Constants;
-using MediatR;
-
-namespace EnvelopeGenerator.Application.EmailTemplates.Queries.Read;
-
-/// <summary>
-/// 
-/// </summary>
-public class ReadEmailTemplateQueryHandler : IRequestHandler<ReadEmailTemplateQuery, ReadEmailTemplateResponse?>
-{
-    private readonly IMapper _mapper;
-
-    [Obsolete("Use Read-method returning IReadQuery<TEntity> instead.")]
-    private readonly IEmailTemplateRepository _repository;
-
-    /// <summary>
-    /// Initialisiert eine neue Instanz der <see cref="EmailTemplateController"/>-Klasse.
-    /// </summary>
-    /// <param name="mapper">
-    /// <param name="repository">
-    /// Die AutoMapper-Instanz, die zum Zuordnen von Objekten verwendet wird.
-    /// </param>
-    [Obsolete("Use Read-method returning IReadQuery<TEntity> instead.")]
-    public ReadEmailTemplateQueryHandler(IMapper mapper, IEmailTemplateRepository repository)
-    {
-        _mapper = mapper;
-        _repository = repository;
-    }
-
-    /// <summary>
-    /// 
-    /// </summary>
-    /// <param name="request"></param>
-    /// <param name="cancellationToken"></param>
-    /// <returns></returns>
-    /// <exception cref="InvalidOperationException"></exception>
-    [Obsolete("Use IRepository")]
-    public async Task<ReadEmailTemplateResponse?> Handle(ReadEmailTemplateQuery request, CancellationToken cancellationToken)
-    {
-        var temp = request.Id is int id
-            ? await _repository.ReadByIdAsync(id)
-            : request.Type is EmailTemplateType type
-                ? await _repository.ReadByNameAsync(type)
-                : throw new InvalidOperationException("Either a valid integer ID or a valid EmailTemplateType must be provided in the request.");
-
-        var res = _mapper.Map<ReadEmailTemplateResponse>(temp);
-
-        return res;
-    }
-}

EnvelopeGenerator.Application/EmailTemplates/Queries/Read/ReadEmailTemplateResponse.cs

@@ -1,37 +0,0 @@
-namespace EnvelopeGenerator.Application.EmailTemplates.Queries.Read;
-
-/// <summary>
-/// Stellt die Antwort für eine Abfrage von E-Mail-Vorlagen bereit.
-/// </summary>
-public class ReadEmailTemplateResponse
-{
-    /// <summary>
-    /// Die eindeutige Kennung der E-Mail-Vorlage.
-    /// </summary>
-    public int Id { get; set; }
-
-    /// <summary>
-    /// Name des Typs
-    /// </summary>
-    public required string Name { get; set; }
-
-    /// <summary>
-    /// Das Datum und die Uhrzeit, wann die Vorlage hinzugefügt wurde.
-    /// </summary>
-    public DateTime AddedWhen { get; set; }
-
-    /// <summary>
-    /// Der Inhalt (Body) der E-Mail-Vorlage. Kann null sein.
-    /// </summary>
-    public string? Body { get; set; }
-
-    /// <summary>
-    /// Der Betreff der E-Mail-Vorlage. Kann null sein.
-    /// </summary>
-    public string? Subject { get; set; }
-
-    /// <summary>
-    /// Das Datum und die Uhrzeit, wann die Vorlage zuletzt geändert wurde. Kann null sein.
-    /// </summary>
-    public DateTime? ChangedWhen { get; set; }
-}

EnvelopeGenerator.Application/EmailTemplates/Queries/ReadEmailTemplateQuery.cs

@@ -0,0 +1,78 @@
+using AutoMapper;
+using MediatR;
+using EnvelopeGenerator.Application.Common.Dto;
+using DigitalData.Core.Abstraction.Application.Repository;
+using EnvelopeGenerator.Domain.Entities;
+using Microsoft.EntityFrameworkCore;
+using EnvelopeGenerator.Domain.Constants;
+using DigitalData.Core.Exceptions;
+
+namespace EnvelopeGenerator.Application.EmailTemplates.Queries;
+
+/// <summary>
+/// Stellt eine Abfrage dar, um eine E-Mail-Vorlage zu lesen.
+/// Diese Klasse erbt von <see cref="IEmailTemplateQuery"/>.
+/// </summary>
+public record ReadEmailTemplateQuery : IEmailTemplateQuery, IRequest<EmailTemplateDto>
+{
+    /// <summary>
+    /// Die eindeutige Kennung der E-Mail-Vorlage (optional).
+    /// </summary>
+    public int? Id { get; set; }
+
+    /// <summary>
+    /// Der Typ der E-Mail-Vorlage, z. B. <see cref="EmailTemplateType"/> (optional). Beispiele:<br/>
+    /// 0 - DocumentReceived: Benachrichtigung über den Empfang eines Dokuments.<br/>
+    /// 1 - DocumentSigned: Benachrichtigung über die Unterzeichnung eines Dokuments.<br/>
+    /// 2 - DocumentDeleted: Benachrichtigung über das Löschen eines Dokuments.<br/>
+    /// 3 - DocumentCompleted: Benachrichtigung über den Abschluss eines Dokuments.<br/>
+    /// 4 - DocumentAccessCodeReceived: Benachrichtigung über den Erhalt eines Zugangscodes.<br/>
+    /// 5 - DocumentShared: Benachrichtigung über das Teilen eines Dokuments.<br/>
+    /// 6 - TotpSecret: Benachrichtigung über ein TOTP-Geheimnis.<br/>
+    /// 7 - DocumentRejected_ADM (für den Absender): Mail an den Absender, wenn das Dokument abgelehnt wird.<br/>
+    /// 8 - DocumentRejected_REC (für den ablehnenden Empfänger): Mail an den ablehnenden Empfänger, wenn das Dokument abgelehnt wird.<br/>
+    /// 9 - DocumentRejected_REC_2 (für sonstige Empfänger): Mail an andere Empfänger (Brief), wenn das Dokument abgelehnt wird.
+    /// </summary>
+    public EmailTemplateType? Type { get; set; }
+}
+
+/// <summary>
+/// 
+/// </summary>
+public class ReadEmailTemplateQueryHandler : IRequestHandler<ReadEmailTemplateQuery, EmailTemplateDto>
+{
+    private readonly IMapper _mapper;
+
+    private readonly IRepository<EmailTemplate> _repo;
+
+    /// <summary>
+    /// Initialisiert eine neue Instanz der <see cref="EmailTemplateController"/>-Klasse.
+    /// </summary>
+    /// <param name="mapper">
+    /// <param name="repo">
+    /// Die AutoMapper-Instanz, die zum Zuordnen von Objekten verwendet wird.
+    /// </param>
+    public ReadEmailTemplateQueryHandler(IMapper mapper, IRepository<EmailTemplate> repo)
+    {
+        _mapper = mapper;
+        _repo = repo;
+    }
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="request"></param>
+    /// <param name="cancel"></param>
+    /// <returns></returns>
+    /// <exception cref="InvalidOperationException"></exception>
+    public async Task<EmailTemplateDto> Handle(ReadEmailTemplateQuery request, CancellationToken cancel)
+    {
+        var query = request.Id is int id
+            ? _repo.Query.Where(temp => temp.Id == id)
+            : _repo.Query.Where(temp => temp.Name == request.Type!.ToString());
+
+        var entity = await query.FirstOrDefaultAsync(cancel) ?? throw new NotFoundException();
+
+        return _mapper.Map<EmailTemplateDto>(entity);
+    }
+}

EnvelopeGenerator.Domain/Constants/AuthPolicy.cs

@@ -0,0 +1,15 @@
+namespace EnvelopeGenerator.Domain.Constants
+{
+    public static class AuthPolicy
+    {
+        public const string SenderOrReceiver = nameof(SenderOrReceiver) + nameof(AuthPolicy);
+
+        public const string ReceiverOrReceiverTFA = nameof(ReceiverOrReceiverTFA) + nameof(AuthPolicy);
+
+        public const string Sender = nameof(Sender) + nameof(AuthPolicy);
+
+        public const string Receiver = nameof(Receiver) + nameof(AuthPolicy);
+
+        public const string ReceiverTFA = nameof(ReceiverTFA) + nameof(AuthPolicy);
+    }
+}

EnvelopeGenerator.Domain/Constants/Role.cs

@@ -6,18 +6,18 @@ namespace EnvelopeGenerator.Domain.Constants
 {
     public static class Role
     {
-        [Obsolete("Use Receiver.PreAuth or Receiver.FullyAuth")]
-        public const string PreAuth = "PreAuth";
+        [Obsolete("Use Receiver.TFA")]
+        public const string ReceiverTFA = Receiver.TFA;
 
-        [Obsolete("Use Receiver.PreAuth or Receiver.FullyAuth")]
-        public const string FullyAuth = "FullyAuth";
+        [Obsolete("Use Receiver.Full")]
+        public const string ReceiverFull = Receiver.Full;
 
         public static class Receiver
         {
-            public const string PreAuth = "PreAuth";
-            public const string FullyAuth = "FullyAuth";
+            public const string TFA = "EGReceiverTFA";
+            public const string Full = "EGReceiver";
         }
 
-        public const string Sender = "Sender";
+        public const string Sender = "EGSender";
     }
 }

EnvelopeGenerator.Domain/Entities/Config.cs

@@ -2,30 +2,22 @@
 using System.ComponentModel.DataAnnotations.Schema;
 
 namespace EnvelopeGenerator.Domain.Entities
-#if NET
-    ;
-#elif NETFRAMEWORK
-    {
-#endif
-
-[Table("TBSIG_CONFIG", Schema = "dbo")]
-public class Config
 {
-    [Column("SENDING_PROFILE", TypeName = "int")]
-    [Required]
-    public int SendingProfile { get; set; }
+    [Table("TBSIG_CONFIG", Schema = "dbo")]
+    public class Config
+    {
+        [Column("SENDING_PROFILE", TypeName = "int")]
+        [Required]
+        public int SendingProfile { get; set; }
 
-    [Column("SIGNATURE_HOST", TypeName = "nvarchar(128)")]
-    [Required]
-    public string SignatureHost { get; set; }
+        [Column("SIGNATURE_HOST", TypeName = "nvarchar(128)")]
+        [Required]
+        public string SignatureHost { get; set; }
 
-    [Column("EXTERNAL_PROGRAM_NAME", TypeName = "nvarchar(30)")]
-    public string ExternalProgramName { get; set; }
+        [Column("EXTERNAL_PROGRAM_NAME", TypeName = "nvarchar(30)")]
+        public string ExternalProgramName { get; set; }
 
-    [Column("EXPORT_PATH", TypeName = "nvarchar(256)")]
-    public string ExportPath { get; set; }
-}
-
-#if NETFRAMEWORK
+        [Column("EXPORT_PATH", TypeName = "nvarchar(256)")]
+        public string ExportPath { get; set; }
     }
-#endif
+}

EnvelopeGenerator.Domain/Entities/Document.cs

@@ -1,6 +1,9 @@
-using EnvelopeGenerator.Domain.Interfaces;
+using System;
+using EnvelopeGenerator.Domain.Interfaces;
 using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
+
+using EnvelopeGenerator.Domain.Interfaces.Auditing;
 #if NETFRAMEWORK
 using System.Drawing;
 using System.Collections.Generic;
@@ -8,81 +11,77 @@ using System.Linq;
 #endif
 
 namespace EnvelopeGenerator.Domain.Entities
-#if NET
-    ;
-#elif NETFRAMEWORK
-    {
-#endif
-
-[Table("TBSIG_ENVELOPE_DOCUMENT", Schema = "dbo")]
-public class Document : IHasEnvelope
 {
-    public Document()
+    [Table("TBSIG_ENVELOPE_DOCUMENT", Schema = "dbo")]
+    public class Document : IHasEnvelope, IHasAddedWhen
     {
+        public Document()
+        {
 #if NETFRAMEWORK
-        Elements = Enumerable.Empty<Signature>().ToList();
+            Elements = Enumerable.Empty<Signature>().ToList();
+#endif
+        }
+
+        [Key]
+        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
+        [Column("GUID")]
+        public int Id { get; set; }
+
+        [Required]
+        [Column("ENVELOPE_ID")]
+        public int EnvelopeId { get; set; }
+#if NETFRAMEWORK
+            = 0;
+#endif
+
+        [Required]
+        [Column("ADDED_WHEN", TypeName = "datetime")]
+        public DateTime AddedWhen { get; set; }
+
+        [Column("BYTE_DATA", TypeName = "varbinary(max)")]
+        public byte[]
+#if nullable
+            ?
+#endif
+            ByteData { get; set; }
+
+        #region File
+        [Column("FILENAME", TypeName = "nvarchar(256)")]
+        public string Filename { get; set; }
+
+        [Column("FILEPATH", TypeName = "nvarchar(256)")]
+        public string Filepath { get; set; }
+
+        [Column("FILENAME_ORIGINAL", TypeName = "nvarchar(256)")]
+        public string
+#if nullable
+            ?
+#endif
+            FileNameOriginal { get; set; }
+        #endregion
+
+        public virtual List<Signature>
+#if nullable
+            ?
+#endif
+            Elements { get; set; }
+
+        [ForeignKey("EnvelopeId")]
+        public virtual Envelope
+#if nullable
+            ?
+#endif
+            Envelope { get; set; }
+
+#if NETFRAMEWORK
+        [NotMapped]
+        public bool IsTempFile { get; set; }
+
+        [NotMapped]
+        public Bitmap Thumbnail { get; set; }
+
+        [NotMapped]
+        public int PageCount { get; set; }
 #endif
     }
-
-    [Key]
-    [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
-    [Column("GUID")]
-    public int Id { get; set; }
-
-    [Required]
-    [Column("ENVELOPE_ID")]
-    public int EnvelopeId { get; set; }
-#if NETFRAMEWORK
-        = 0;
-#endif
-
-    [Column("BYTE_DATA", TypeName = "varbinary(max)")]
-    public byte[]
-#if NET
-        ?
-#endif
-        ByteData { get; set; }
-
-    #region File
-    [Column("FILENAME", TypeName = "nvarchar(256)")]
-    public string Filename { get; set; }
-
-    [Column("FILEPATH", TypeName = "nvarchar(256)")]
-    public string Filepath { get; set; }
-
-    [Column("FILENAME_ORIGINAL", TypeName = "nvarchar(256)")]
-    public string
-#if NET
-        ?
-#endif
-        FileNameOriginal { get; set; }
-    #endregion
-
-    public virtual List<Signature>
-#if NET
-        ?
-#endif
-        Elements { get; set; }
-
-    [ForeignKey("EnvelopeId")]
-    public virtual Envelope
-#if NET
-        ?
-#endif
-        Envelope { get; set; }
-
-#if NETFRAMEWORK
-    [NotMapped]
-    public bool IsTempFile { get; set; }
-
-    [NotMapped]
-    public Bitmap Thumbnail { get; set; }
-
-    [NotMapped]
-    public int PageCount { get; set; }
-#endif
-}
-
-#if NETFRAMEWORK
-    }
-#endif
+}

EnvelopeGenerator.Domain/Entities/DocumentStatus.cs

@@ -1,65 +1,62 @@
-using System.ComponentModel.DataAnnotations;
+using System;
+using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
 using DigitalData.Core.Abstractions.Interfaces;
 using EnvelopeGenerator.Domain.Interfaces;
-
-#if NETFRAMEWORK
-using System;
-#endif
+using EnvelopeGenerator.Domain.Interfaces.Auditing;
 
 namespace EnvelopeGenerator.Domain.Entities
-#if NET
-    ;
-#elif NETFRAMEWORK
-    {
-#endif
-
-[Table("TBSIG_DOCUMENT_STATUS", Schema = "dbo")]
-public class DocumentStatus : IHasEnvelope, IHasReceiver, IEntity
 {
-    public DocumentStatus()
+    [Table("TBSIG_DOCUMENT_STATUS", Schema = "dbo")]
+    public class DocumentStatus : IHasEnvelope, IHasReceiver, IEntity, IHasAddedWhen, IHasChangedWhen
     {
-        // TODO: * check Form Application and remove default value
+        public DocumentStatus()
+        {
+            // TODO: * check Form Application and remove default value
 #if NETFRAMEWORK
-        Status = Constants.DocumentStatus.Created;
+            Status = Constants.DocumentStatus.Created;
 #endif
-    }
+        }
 
-    [Key]
-    [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
-    [Column("GUID")]
-    public int Id { get; set; }
+        [Key]
+        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
+        [Column("GUID")]
+        public int Id { get; set; }
 
-    [Required]
-    [Column("ENVELOPE_ID")]
-    public int EnvelopeId { get; set; }
+        [Required]
+        [Column("ENVELOPE_ID")]
+        public int EnvelopeId { get; set; }
 
-    [Required]
-    [Column("RECEIVER_ID")]
-    public int ReceiverId { get; set; }
+        [Required]
+        [Column("RECEIVER_ID")]
+        public int ReceiverId { get; set; }
 
-    [Required]
-    [Column("STATUS")]
-    public Constants.DocumentStatus Status { get; set; }
+        [Required]
+        [Column("STATUS")]
+        public Constants.DocumentStatus Status { get; set; }
 
-    [Column("VALUE", TypeName = "nvarchar(max)")]
-    public string Value { get; set; }
+        [Required]
+        [Column("ADDED_WHEN", TypeName = "datetime")]
+        public DateTime AddedWhen { get; set; }
 
-    [ForeignKey("EnvelopeId")]
-    public virtual Envelope
-#if NET
-        ?
+        [Column("CHANGED_WHEN", TypeName = "datetime")]
+        public DateTime? ChangedWhen { get; set; }
+
+        [Column("VALUE", TypeName = "nvarchar(max)")]
+        public string Value { get; set; }
+
+        [ForeignKey("EnvelopeId")]
+        public virtual Envelope
+#if nullable
+            ?
 #endif
-        Envelope { get; set; }
+            Envelope { get; set; }
 
-    [ForeignKey("ReceiverId")]
-    public virtual Receiver
-#if NET
-        ?
+        [ForeignKey("ReceiverId")]
+        public virtual Receiver
+#if nullable
+            ?
 #endif
             Receiver { get; set; }
-}
-
-#if NETFRAMEWORK
     }
-#endif
+}

EnvelopeGenerator.Domain/Entities/ElementAnnotation.cs

@@ -1,92 +1,85 @@
-using System.ComponentModel.DataAnnotations;
+using System;
+using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
+using EnvelopeGenerator.Domain.Interfaces.Auditing;
 #if NETFRAMEWORK
-using System;
 #endif
 
 namespace EnvelopeGenerator.Domain.Entities
-#if NET
-    ;
-#elif NETFRAMEWORK
-    {
-#endif
-
-[Table("TBSIG_DOCUMENT_RECEIVER_ELEMENT_ANNOTATION")]
-public class ElementAnnotation
 {
-    [Key]
-    [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
-    [Column("GUID", TypeName = "bigint")]
-    public long Id { get; set; }
+    [Table("TBSIG_DOCUMENT_RECEIVER_ELEMENT_ANNOTATION")]
+    public class ElementAnnotation : IHasAddedWhen, IUpdateAuditable
+    {
+        [Key]
+        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
+        [Column("GUID", TypeName = "bigint")]
+        public long Id { get; set; }
 
-    [Required]
-    [Column("ELEMENT_ID", TypeName = "int")]
-    public int ElementId { get; set; }
+        [Required]
+        [Column("ELEMENT_ID", TypeName = "int")]
+        public int ElementId { get; set; }
 
-    [Required]
-    [Column("NAME", TypeName = "nvarchar(100)")]
-    [StringLength(100)]
-    public string Name { get; set; }
+        [Required]
+        [Column("NAME", TypeName = "nvarchar(100)")]
+        [StringLength(100)]
+        public string Name { get; set; }
 
-    [Required]
-    [Column("VALUE", TypeName = "nvarchar(max)")]
-    public string Value { get; set; }
+        [Required]
+        [Column("VALUE", TypeName = "nvarchar(max)")]
+        public string Value { get; set; }
 
-    [Required]
-    [Column("TYPE", TypeName = "nvarchar(50)")]
-    public string Type { get; set; }
+        [Required]
+        [Column("TYPE", TypeName = "nvarchar(50)")]
+        public string Type { get; set; }
 
-    [Column("POSITION_X", TypeName = "float")]
-    public double
-#if NET
-        ?
+        [Column("POSITION_X", TypeName = "float")]
+        public double
+#if nullable
+            ?
 #endif
-        X { get; set; }
+            X { get; set; }
 
-    [Column("POSITION_Y", TypeName = "float")]
-    public double
-#if NET
-        ?
+        [Column("POSITION_Y", TypeName = "float")]
+        public double
+#if nullable
+            ?
 #endif
-        Y { get; set; }
+            Y { get; set; }
 
-    [Column("WIDTH", TypeName = "float")]
-    public double
-#if NET
-        ?
+        [Column("WIDTH", TypeName = "float")]
+        public double
+#if nullable
+            ?
 #endif
-        Width { get; set; }
+            Width { get; set; }
 
-    [Column("HEIGHT", TypeName = "float")]
-    public double
-#if NET
-        ?
+        [Column("HEIGHT", TypeName = "float")]
+        public double
+#if nullable
+            ?
 #endif
-        Height { get; set; }
+            Height { get; set; }
 
-    [Required]
-    [Column("ADDED_WHEN", TypeName = "datetime")]
-    public DateTime AddedWhen { get; set; }
+        [Required]
+        [Column("ADDED_WHEN", TypeName = "datetime")]
+        public DateTime AddedWhen { get; set; }
 
-    [Column("CHANGED_WHEN", TypeName = "datetime")]
-    public DateTime? ChangedWhen { get; set; }
+        [Column("CHANGED_WHEN", TypeName = "datetime")]
+        public DateTime? ChangedWhen { get; set; }
 
-    [Column("CHANGED_WHO", TypeName = "nvarchar(100)")]
-    [StringLength(100)]
-    public string
-#if NET
-        ?
+        [Column("CHANGED_WHO", TypeName = "nvarchar(100)")]
+        [StringLength(100)]
+        public string
+#if nullable
+            ?
 #endif
-        ChangedWho { get; set; }
+            ChangedWho { get; set; }
 
-    [ForeignKey("ElementId")]
-    public virtual Signature
-#if NET
-        ?
+        [ForeignKey("ElementId")]
+        public virtual Signature
+#if nullable
+            ?
 #endif
-        Element { get; set; }
-}
-
-#if NETFRAMEWORK
+            Element { get; set; }
     }
-#endif
+}

EnvelopeGenerator.Domain/Entities/EmailTemplate.cs

@@ -1,44 +1,39 @@
-using DigitalData.Core.Abstractions.Interfaces;
+using System;
+using DigitalData.Core.Abstractions.Interfaces;
 using System.ComponentModel;
 using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
-#if NETFRAMEWORK
-using System;
-#endif
+using EnvelopeGenerator.Domain.Interfaces.Auditing;
 
 namespace EnvelopeGenerator.Domain.Entities
-#if NET
-    ;
-#elif NETFRAMEWORK
-    {
-#endif
-
-[Table("TBSIG_EMAIL_TEMPLATE", Schema = "dbo")]
-public class EmailTemplate : IEntity
 {
-    [Key]
-    [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
-    [Column("GUID")]
-    public int Id { get; set; }
+    [Table("TBSIG_EMAIL_TEMPLATE", Schema = "dbo")]
+    public class EmailTemplate : IEntity, IHasAddedWhen, IHasChangedWhen
+    {
+        [Key]
+        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
+        [Column("GUID")]
+        public int Id { get; set; }
 
-    [Column("NAME", TypeName = "nvarchar(64)")]
-    public string Name { get; set; }
+        [Column("NAME", TypeName = "nvarchar(64)")]
+        public string Name { get; set; }
 
-    [Column("BODY", TypeName = "nvarchar(max)")]
-    public string Body { get; set; }
+        [Column("BODY", TypeName = "nvarchar(max)")]
+        public string Body { get; set; }
 
-    [Column("SUBJECT", TypeName = "nvarchar(512)")]
-    public string Subject { get; set; }
+        [Column("SUBJECT", TypeName = "nvarchar(512)")]
+        public string Subject { get; set; }
 
-    [Required]
-    [Column("ADDED_WHEN", TypeName = "datetime")]
-    [DefaultValue("GETDATE()")]
-    public DateTime AddedWhen { get; set; }
+        [Required]
+        [Column("LANG_CODE", TypeName = "varchar(5)")]
+        public string LangCode { get; set; }
 
-    [Column("CHANGED_WHEN", TypeName = "datetime")]
-    public DateTime ChangedWhen { get; set; }
-}
+        [Required]
+        [Column("ADDED_WHEN", TypeName = "datetime")]
+        [DefaultValue("GETDATE()")]
+        public DateTime AddedWhen { get; set; }
 
-#if NETFRAMEWORK
+        [Column("CHANGED_WHEN", TypeName = "datetime")]
+        public DateTime? ChangedWhen { get; set; }
     }
-#endif
+}

EnvelopeGenerator.Domain/Entities/Envelope.cs

@@ -1,208 +1,205 @@
-using DigitalData.UserManager.Domain.Entities;
+using System;
+using DigitalData.UserManager.Domain.Entities;
 using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
 using EnvelopeGenerator.Domain.Constants;
 using Newtonsoft.Json;
-
+using EnvelopeGenerator.Domain.Interfaces.Auditing;
 #if NETFRAMEWORK
-using System;
 using System.Collections.Generic;
 using System.Linq;
 #endif
 
 namespace EnvelopeGenerator.Domain.Entities
-#if NET
-    ;
-#elif NETFRAMEWORK
-    {
-#endif
-
-[Table("TBSIG_ENVELOPE", Schema = "dbo")]
-public class Envelope
 {
-    public Envelope()
+    [Table("TBSIG_ENVELOPE", Schema = "dbo")]
+    public class Envelope : IHasAddedWhen, IHasChangedWhen
     {
-        // TODO: * Check the Form App and remove the default value
+        public Envelope()
+        {
+            // TODO: * Check the Form App and remove the default value
 #if NETFRAMEWORK
-        Id = 0;
-        Status = EnvelopeStatus.EnvelopeCreated;
-        Uuid = Guid.NewGuid().ToString();
-        Message = My.Resources.Envelope.Please_read_and_sign_this_document;
-        Title= string.Empty;
-        Comment = string.Empty;
-        Language = "de-DE";
-        SendReminderEmails = false;
-        FirstReminderDays = 0;
-        ReminderIntervalDays = 0;
-        CertificationType = (int)Constants.CertificationType.AdvancedElectronicSignature;
-        UseAccessCode = false;
-        Documents = Enumerable.Empty<Document>().ToList();
-        Histories = Enumerable.Empty<History>().ToList();
-        EnvelopeReceivers = Enumerable.Empty<EnvelopeReceiver>().ToList();
+            Id = 0;
+            Status = EnvelopeStatus.EnvelopeCreated;
+            Uuid = Guid.NewGuid().ToString();
+            Message = My.Resources.Envelope.Please_read_and_sign_this_document;
+            Title = string.Empty;
+            Comment = string.Empty;
+            Language = "de-DE";
+            SendReminderEmails = false;
+            FirstReminderDays = 0;
+            ReminderIntervalDays = 0;
+            CertificationType = (int)Constants.CertificationType.AdvancedElectronicSignature;
+            UseAccessCode = false;
+            Documents = Enumerable.Empty<Document>().ToList();
+            Histories = Enumerable.Empty<History>().ToList();
+            EnvelopeReceivers = Enumerable.Empty<EnvelopeReceiver>().ToList();
 #endif
+        }
+
+        [Key]
+        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
+        [Column("GUID")]
+        public int Id { get; set; }
+
+        [Required]
+        [Column("USER_ID")]
+        public int UserId { get; set; }
+
+        [Required]
+        [Column("STATUS")]
+        public EnvelopeStatus Status { get; set; }
+
+        [Required]
+        [Column("ENVELOPE_UUID", TypeName = "nvarchar(36)")]
+        public string Uuid { get; set; }
+
+        [Column("MESSAGE", TypeName = "nvarchar(max)")]
+        public string Message { get; set; }
+
+        [Column("EXPIRES_WHEN", TypeName = "datetime")]
+        public DateTime? ExpiresWhen { get; set; }
+
+        [Column("EXPIRES_WARNING_WHEN", TypeName = "datetime")]
+        public DateTime? ExpiresWarningWhen { get; set; }
+
+        [Required]
+        [Column("ADDED_WHEN", TypeName = "datetime")]
+        public DateTime AddedWhen { get; set; }
+
+        [Column("CHANGED_WHEN", TypeName = "datetime")]
+        public DateTime? ChangedWhen { get; set; }
+
+        [Column("TITLE", TypeName = "nvarchar(128)")]
+        public string
+#if nullable
+        ?
+#endif
+            Title
+        { get; set; }
+
+        [Column("COMMENT", TypeName = "nvarchar(128)")]
+        public string Comment { get; set; }
+
+        [Column("CONTRACT_TYPE")]
+        public int? ContractType { get; set; }
+
+#if NETFRAMEWORK
+        [NotMapped]
+        public string ContractTypeTranslated => My.Resources.Model.ResourceManager.GetString(ContractType.ToString());
+#endif
+
+        [Column("LANGUAGE", TypeName = "nvarchar(5)")]
+        public string Language { get; set; }
+
+        [Column("SEND_REMINDER_EMAILS")]
+        public bool SendReminderEmails { get; set; }
+
+        [Column("FIRST_REMINDER_DAYS")]
+        public int? FirstReminderDays { get; set; }
+
+        [Column("REMINDER_INTERVAL_DAYS")]
+        public int? ReminderIntervalDays { get; set; }
+
+        [Column("ENVELOPE_TYPE")]
+        public int? EnvelopeTypeId { get; set; }
+
+        [JsonIgnore]
+        [NotMapped]
+        public bool ReadOnly => EnvelopeTypeId == 2;
+
+        [Column("CERTIFICATION_TYPE")]
+        public int? CertificationType { get; set; }
+
+        [Column("USE_ACCESS_CODE")]
+        public bool UseAccessCode { get; set; }
+
+        [Column("FINAL_EMAIL_TO_CREATOR")]
+        public int? FinalEmailToCreator { get; set; }
+
+        [Column("FINAL_EMAIL_TO_RECEIVERS")]
+        public int? FinalEmailToReceivers { get; set; }
+
+        [Column("EXPIRES_WHEN_DAYS")]
+        public int? ExpiresWhenDays { get; set; }
+
+        [Column("EXPIRES_WARNING_WHEN_DAYS")]
+        public int? ExpiresWarningWhenDays { get; set; }
+
+        [ForeignKey("UserId")]
+        public User User { get; set; }
+
+        [Column("TFA_ENABLED")]
+        public bool TfaEnabled { get; set; }
+#if NETFRAMEWORK
+            = false;
+#endif
+
+        [NotMapped]
+        [Column("DOC_RESULT")]
+        public byte[]
+#if nullable
+        ?
+#endif
+            DocResult
+        { get; set; }
+
+        [ForeignKey("EnvelopeTypeId")]
+        public virtual EnvelopeType
+#if nullable
+        ?
+#endif
+            Type
+        { get; set; }
+
+#if NETFRAMEWORK
+        [NotMapped]
+        public string CURRENT_WORK_APP { get; set; } = "signFLOW GUI";
+
+        [NotMapped]
+        public bool IsAlreadySent => Status > EnvelopeStatus.EnvelopeSaved;
+#endif
+
+        public List<Document>
+#if nullable
+        ?
+#endif
+            Documents
+        { get; set; }
+
+        public List<History>
+#if nullable
+        ?
+#endif
+            Histories
+        { get; set; }
+
+        public List<EnvelopeReceiver>
+#if nullable
+        ?
+#endif
+            EnvelopeReceivers
+        { get; set; }
+
+        //#if NETFRAMEWORK
+        /// <summary>
+        /// Validates whether the receiver and document data are complete.
+        /// </summary>
+        public List<string> ValidateReceiverDocumentData()
+        {
+            var errors = new List<string>();
+
+            if (!Documents?.Any() ?? true)
+                errors.Add(My.Resources.Envelope.Missing_Documents);
+
+            if (!EnvelopeReceivers?.Any() ?? true)
+                errors.Add(My.Resources.Envelope.Missing_Receivers);
+
+            if (EnvelopeReceivers?.Any(r => !r.HasEmailAndName) ?? false)
+                errors.Add(My.Resources.Envelope.Incomplete_Receivers);
+
+            return errors;
+        }
+        //#endif
     }
-
-    [Key]
-    [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
-    [Column("GUID")]
-    public int Id { get; set; }
-
-    [Required]
-    [Column("USER_ID")]
-    public int UserId { get; set; }
-
-    [Required]
-    [Column("STATUS")]
-    public EnvelopeStatus Status { get; set; }
-
-    [Required]
-    [Column("ENVELOPE_UUID", TypeName = "nvarchar(36)")]
-    public string Uuid { get; set; }
-
-    [Column("MESSAGE", TypeName = "nvarchar(max)")]
-    public string Message { get; set; }
-
-    [Column("EXPIRES_WHEN", TypeName = "datetime")]
-    public DateTime? ExpiresWhen { get; set; }
-
-    [Column("EXPIRES_WARNING_WHEN", TypeName = "datetime")]
-    public DateTime? ExpiresWarningWhen { get; set; }
-
-    [Required]
-    [Column("ADDED_WHEN", TypeName = "datetime")]
-    public DateTime AddedWhen { get; set; }
-
-    [Column("CHANGED_WHEN", TypeName = "datetime")]
-    public DateTime? ChangedWhen { get; set; }
-
-    [Column("TITLE", TypeName = "nvarchar(128)")]
-    public string
-#if NET
-        ?
-#endif
-        Title { get; set; }
-
-    [Column("COMMENT", TypeName = "nvarchar(128)")]
-    public string Comment { get; set; }
-
-    [Column("CONTRACT_TYPE")]
-    public int? ContractType { get; set; }
-
-#if NETFRAMEWORK
-    [NotMapped]
-    public string ContractTypeTranslated => My.Resources.Model.ResourceManager.GetString(ContractType.ToString());
-#endif
-
-    [Column("LANGUAGE", TypeName = "nvarchar(5)")]
-    public string Language { get; set; }
-
-    [Column("SEND_REMINDER_EMAILS")]
-    public bool SendReminderEmails { get; set; }
-
-    [Column("FIRST_REMINDER_DAYS")]
-    public int? FirstReminderDays { get; set; }
-
-    [Column("REMINDER_INTERVAL_DAYS")]
-    public int? ReminderIntervalDays { get; set; }
-
-    [Column("ENVELOPE_TYPE")]
-    public int? EnvelopeTypeId { get; set; }
-
-    [JsonIgnore]
-    [NotMapped]
-    public bool ReadOnly => EnvelopeTypeId == 2;
-    
-    [Column("CERTIFICATION_TYPE")]
-    public int? CertificationType { get; set; }
-
-    [Column("USE_ACCESS_CODE")]
-    public bool UseAccessCode { get; set; }
-
-    [Column("FINAL_EMAIL_TO_CREATOR")]
-    public int? FinalEmailToCreator { get; set; }
-
-    [Column("FINAL_EMAIL_TO_RECEIVERS")]
-    public int? FinalEmailToReceivers { get; set; }
-
-    [Column("EXPIRES_WHEN_DAYS")]
-    public int? ExpiresWhenDays { get; set; }
-
-    [Column("EXPIRES_WARNING_WHEN_DAYS")]
-    public int? ExpiresWarningWhenDays { get; set; }
-
-    [ForeignKey("UserId")]
-    public User User { get; set; }
-
-    [Column("TFA_ENABLED")]
-    public bool TfaEnabled { get; set; }
-#if NETFRAMEWORK
-        = false;
-#endif
-
-    [NotMapped]
-    [Column("DOC_RESULT")]
-    public byte[]
-#if NET
-        ?
-#endif
-        DocResult
-    { get; set; }
-
-    [ForeignKey("EnvelopeTypeId")]
-    public virtual EnvelopeType
-#if NET
-        ?
-#endif
-        Type { get; set; }
-
-#if NETFRAMEWORK
-    [NotMapped]
-    public string CURRENT_WORK_APP { get; set; } = "signFLOW GUI";
-
-    [NotMapped]
-    public bool IsAlreadySent => Status > EnvelopeStatus.EnvelopeSaved;
-#endif
-
-    public List<Document>
-#if NET
-        ?
-#endif
-        Documents { get; set; }
-
-    public List<History>
-#if NET
-        ?
-#endif
-        Histories { get; set; }
-
-    public List<EnvelopeReceiver>
-#if NET
-        ?
-#endif
-        EnvelopeReceivers { get; set; }
-
-//#if NETFRAMEWORK
-    /// <summary>
-    /// Validates whether the receiver and document data are complete.
-    /// </summary>
-    public List<string> ValidateReceiverDocumentData()
-    {
-        var errors = new List<string>();
-
-        if (!Documents?.Any() ?? true)
-            errors.Add(My.Resources.Envelope.Missing_Documents);
-
-        if (!EnvelopeReceivers?.Any() ?? true)
-            errors.Add(My.Resources.Envelope.Missing_Receivers);
-
-        if (EnvelopeReceivers?.Any(r => !r.HasEmailAndName) ?? false)
-            errors.Add(My.Resources.Envelope.Incomplete_Receivers);
-
-        return errors;
-    }
-//#endif
-}
-
-#if NETFRAMEWORK
-    }
-#endif
+}

EnvelopeGenerator.Domain/Entities/EnvelopeReceiver.cs

@@ -1,104 +1,94 @@
-using System.ComponentModel.DataAnnotations;
+using System;
+using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
 using DigitalData.Core.Abstractions.Interfaces;
 using EnvelopeGenerator.Domain.Interfaces;
-
-#if NETFRAMEWORK
-using System;
-#endif
+using EnvelopeGenerator.Domain.Interfaces.Auditing;
 
 namespace EnvelopeGenerator.Domain.Entities
-#if NET
-    ;
-#elif NETFRAMEWORK
-    {
-#endif
-
-[Table("TBSIG_ENVELOPE_RECEIVER", Schema = "dbo")]
-public class EnvelopeReceiver : IHasEnvelope, IHasReceiver, IEntity
 {
-    public EnvelopeReceiver()
+    [Table("TBSIG_ENVELOPE_RECEIVER", Schema = "dbo")]
+    public class EnvelopeReceiver : IHasEnvelope, IHasReceiver, IEntity, IHasAddedWhen, IHasChangedWhen
     {
+        public EnvelopeReceiver()
+        {
 #if NETFRAMEWORK
-        CompanyName = string.Empty;
+            CompanyName = string.Empty;
 #endif
-    }
+        }
 
-    [Column("ENVELOPE_ID")]
-    public int EnvelopeId { get; set; }
+        [Column("ENVELOPE_ID")]
+        public int EnvelopeId { get; set; }
 
-    [Column("RECEIVER_ID")]
-    public int ReceiverId { get; set; }
+        [Column("RECEIVER_ID")]
+        public int ReceiverId { get; set; }
 
-    [Required]
-    [Column("SEQUENCE")]
-    public int Sequence { get; set; }
+        [Required]
+        [Column("SEQUENCE")]
+        public int Sequence { get; set; }
 
-    [Column("NAME", TypeName = "nvarchar(128)")]
-    public string Name { get; set; }
+        [Column("NAME", TypeName = "nvarchar(128)")]
+        public string Name { get; set; }
 
-    [Column("JOB_TITLE", TypeName = "nvarchar(128)")]
-    public string JobTitle { get; set; }
+        [Column("JOB_TITLE", TypeName = "nvarchar(128)")]
+        public string JobTitle { get; set; }
 
-    [Column("COMPANY_NAME", TypeName = "nvarchar(128)")]
-    public string
-#if NET
-        ?
+        [Column("COMPANY_NAME", TypeName = "nvarchar(128)")]
+        public string
+#if nullable
+            ?
 #endif
-        CompanyName { get; set; }
+            CompanyName { get; set; }
 
-    [Column("PRIVATE_MESSAGE", TypeName = "nvarchar(max)")]
-    public string PrivateMessage { get; set; }
+        [Column("PRIVATE_MESSAGE", TypeName = "nvarchar(max)")]
+        public string PrivateMessage { get; set; }
 
-    [Column("ACCESS_CODE", TypeName = "nvarchar(64)")]
-    public string AccessCode { get; set; }
+        [Column("ACCESS_CODE", TypeName = "nvarchar(64)")]
+        public string AccessCode { get; set; }
 
-    [Required]
-    [Column("ADDED_WHEN", TypeName = "datetime")]
-    public DateTime AddedWhen { get; set; }
+        [Required]
+        [Column("ADDED_WHEN", TypeName = "datetime")]
+        public DateTime AddedWhen { get; set; }
 
-    [Column("CHANGED_WHEN", TypeName = "datetime")]
-    public DateTime ChangedWhen { get; set; }
+        [Column("CHANGED_WHEN", TypeName = "datetime")]
+        public DateTime? ChangedWhen { get; set; }
 
-    [Column("PHONE_NUMBER")]
-    [StringLength(20)]
-    [RegularExpression(@"^\+[0-9]+$", ErrorMessage = "Phone number must start with '+' followed by digits.")]
-    public string PhoneNumber { get; set; }
+        [Column("PHONE_NUMBER")]
+        [StringLength(20)]
+        [RegularExpression(@"^\+[0-9]+$", ErrorMessage = "Phone number must start with '+' followed by digits.")]
+        public string PhoneNumber { get; set; }
 
-    [NotMapped]
-    public Tuple<int, int> Id => Tuple.Create(EnvelopeId, ReceiverId);
+        [NotMapped]
+        public Tuple<int, int> Id => Tuple.Create(EnvelopeId, ReceiverId);
 
-    [NotMapped]
-    public bool HasPhoneNumber => !string.IsNullOrWhiteSpace(PhoneNumber);
+        [NotMapped]
+        public bool HasPhoneNumber => !string.IsNullOrWhiteSpace(PhoneNumber);
 
-    [ForeignKey("EnvelopeId")]
-    public Envelope
-#if NET
-        ?
+        [ForeignKey("EnvelopeId")]
+        public Envelope
+#if nullable
+            ?
 #endif
-            Envelope { get; set; }
+                Envelope { get; set; }
 
-    [ForeignKey("ReceiverId")]
-    public Receiver
-#if NET
-        ?
+        [ForeignKey("ReceiverId")]
+        public Receiver
+#if nullable
+            ?
 #endif
-            Receiver { get; set; }
+                Receiver { get; set; }
 
-    #region Model of old serice
-    [NotMapped]
-    public Constants.ReceiverStatus Status { get; set; }
+        #region Model of old serice
+        [NotMapped]
+        public Constants.ReceiverStatus Status { get; set; }
 
-    [NotMapped]
-    public bool HasId => Id.Item1 > 0 && Id.Item2 > 0;
+        [NotMapped]
+        public bool HasId => Id.Item1 > 0 && Id.Item2 > 0;
 
-    [NotMapped]
-    public bool HasEmailAndName =>
-        !string.IsNullOrWhiteSpace(Receiver.EmailAddress) &&
-        !string.IsNullOrWhiteSpace(Name);
+        [NotMapped]
+        public bool HasEmailAndName =>
+            !string.IsNullOrWhiteSpace(Receiver.EmailAddress) &&
+            !string.IsNullOrWhiteSpace(Name);
         #endregion
     }
-
-#if NETFRAMEWORK
-    }
-#endif
+}

EnvelopeGenerator.Domain/Entities/EnvelopeReceiverReadOnly.cs

@@ -1,14 +1,13 @@
-using System.ComponentModel.DataAnnotations.Schema;
+using System;
+using System.ComponentModel.DataAnnotations.Schema;
 using System.ComponentModel.DataAnnotations;
 using DigitalData.EmailProfilerDispatcher.Abstraction.Attributes;
-#if NETFRAMEWORK
-using System;
-#endif
+using EnvelopeGenerator.Domain.Interfaces.Auditing;
 
 namespace EnvelopeGenerator.Domain.Entities
 {
     [Table("TBSIG_ENVELOPE_RECEIVER_READ_ONLY")]
-    public class EnvelopeReceiverReadOnly
+    public class EnvelopeReceiverReadOnly : IHasChangedWhen, ICreationAuditable
     {
         [Key]
         [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
@@ -42,16 +41,12 @@ namespace EnvelopeGenerator.Domain.Entities
 
         [Column("ADDED_WHEN")]
         [Required]
-        public DateTime
-#if NET
-            ?
-#endif
-            AddedWhen { get; set; }
+        public DateTime AddedWhen { get; set; }
 
         [Column("CHANGED_WHO")]
         [StringLength(100)]
         public string
-#if NET
+#if nullable
             ?
 #endif
             ChangedWho { get; set; }

EnvelopeGenerator.Domain/Entities/History.cs

@@ -1,84 +1,73 @@
-using DigitalData.UserManager.Domain.Entities;
+using System;
+using DigitalData.UserManager.Domain.Entities;
 using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
 using EnvelopeGenerator.Domain.Interfaces;
 using EnvelopeGenerator.Domain.Constants;
 using DigitalData.Core.Abstractions.Interfaces;
-
-
-#if NETFRAMEWORK
-using System;
-#endif
+using EnvelopeGenerator.Domain.Interfaces.Auditing;
 
 namespace EnvelopeGenerator.Domain.Entities
-#if NET
-    ;
-#elif NETFRAMEWORK
-    {
-#endif
-
-[Table("TBSIG_ENVELOPE_HISTORY", Schema = "dbo")]
-public class History : IHasEnvelope, IHasReceiver, IEntity
 {
-    [Key]
-    [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
-    [Column("GUID")]
-    public long Id { get; set; }
+    [Table("TBSIG_ENVELOPE_HISTORY", Schema = "dbo")]
+    public class History : IHasEnvelope, IHasReceiver, IEntity, IHasAddedWhen, IHasChangedWhen
+    {
+        [Key]
+        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
+        [Column("GUID")]
+        public long Id { get; set; }
 
-    [Required]
-    [Column("ENVELOPE_ID")]
-    public int EnvelopeId { get; set; }
+        [Required]
+        [Column("ENVELOPE_ID")]
+        public int EnvelopeId { get; set; }
 
-    [Required]
-    [Column("USER_REFERENCE", TypeName = "nvarchar(128)")]
-    public string UserReference { get; set; }
+        [Required]
+        [Column("USER_REFERENCE", TypeName = "nvarchar(128)")]
+        public string UserReference { get; set; }
 
-    [Required]
-    [Column("STATUS")]
-    public EnvelopeStatus  Status { get; set; }
+        [Required]
+        [Column("STATUS")]
+        public EnvelopeStatus  Status { get; set; }
 
-    [Required]
-    [Column("ADDED_WHEN", TypeName = "datetime")]
-    [DatabaseGenerated(DatabaseGeneratedOption.Computed)]
-    public DateTime AddedWhen { get; set; }
+        [Required]
+        [Column("ADDED_WHEN", TypeName = "datetime")]
+        [DatabaseGenerated(DatabaseGeneratedOption.Computed)]
+        public DateTime AddedWhen { get; set; }
 
-    [Column("ACTION_DATE", TypeName = "datetime")]
-    public DateTime? ActionDate { get; set; } = DateTime.Now;
-    
-    [Column("COMMENT", TypeName = "nvarchar(max)")]
-    public string
-#if NET
-        ?
+        [Column("ACTION_DATE", TypeName = "datetime")]
+        public DateTime? ChangedWhen { get; set; }
+        
+        [Column("COMMENT", TypeName = "nvarchar(max)")]
+        public string
+#if nullable
+            ?
 #endif
-        Comment { get; set; }
+            Comment { get; set; }
 
-    [ForeignKey("EnvelopeId")]
-    public virtual Envelope
-#if NET
-        ?
+        [ForeignKey("EnvelopeId")]
+        public virtual Envelope
+#if nullable
+            ?
 #endif
-        Envelope { get; set; }
+            Envelope { get; set; }
 
-    [ForeignKey("UserReference")]
-    public virtual User
-#if NET
-        ?
+        [ForeignKey("UserReference")]
+        public virtual User
+#if nullable
+            ?
 #endif
-        Sender { get; set; }
+            Sender { get; set; }
 
-    [ForeignKey("UserReference")]
-    public virtual Receiver
-#if NET
-        ?
+        [ForeignKey("UserReference")]
+        public virtual Receiver
+#if nullable
+            ?
 #endif
-        Receiver { get; set; }
+            Receiver { get; set; }
 
 #if NETFRAMEWORK
-    [NotMapped]
-    public string StatusTranslated => My.Resources.Model.ResourceManager.GetString(Status.ToString());
+        [NotMapped]
+        public string StatusTranslated => My.Resources.Model.ResourceManager.GetString(Status.ToString());
 #endif
-}
-
-#if NETFRAMEWORK
     }
-#endif
+}

EnvelopeGenerator.Domain/Entities/Receiver.cs

@@ -1,50 +1,42 @@
 using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
-using System.Drawing;
+using EnvelopeGenerator.Domain.Interfaces.Auditing;
 #if NETFRAMEWORK
 using System;
 using System.Collections.Generic;
 #endif
 
 namespace EnvelopeGenerator.Domain.Entities
-#if NET
-    ;
-#elif NETFRAMEWORK
-    {
-#endif
-
-[Table("TBSIG_RECEIVER", Schema = "dbo")]
-public class Receiver
 {
-    [Key]
-    [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
-    [Column("GUID")]
-    public int Id { get; set; }
+    [Table("TBSIG_RECEIVER", Schema = "dbo")]
+    public class Receiver : IHasAddedWhen
+    {
+        [Key]
+        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
+        [Column("GUID")]
+        public int Id { get; set; }
 
-    [Required, EmailAddress]
-    [Column("EMAIL_ADDRESS", TypeName = "nvarchar(250)")]
-    [StringLength(250)]
-    public string EmailAddress { get; set; }
+        [Required, EmailAddress]
+        [Column("EMAIL_ADDRESS", TypeName = "nvarchar(250)")]
+        [StringLength(250)]
+        public string EmailAddress { get; set; }
 
-    [Required]
-    [Column("SIGNATURE", TypeName = "nvarchar(64)")]
-    public string Signature { get; set; }
+        [Required]
+        [Column("SIGNATURE", TypeName = "nvarchar(64)")]
+        public string Signature { get; set; }
 
-    [Required]
-    [Column("ADDED_WHEN", TypeName = "datetime")]
-    public DateTime AddedWhen { get; set; }
+        [Required]
+        [Column("ADDED_WHEN", TypeName = "datetime")]
+        public DateTime AddedWhen { get; set; }
 
-    [Column("TOTP_SECRET_KEY", TypeName = "nvarchar(MAX)")]
-    public string TotpSecretkey { get; set; }
+        [Column("TOTP_SECRET_KEY", TypeName = "nvarchar(MAX)")]
+        public string TotpSecretkey { get; set; }
 
-    [Column("TFA_REG_DEADLINE", TypeName = "datetime")]
-    public DateTime? TfaRegDeadline { get; set; }
+        [Column("TFA_REG_DEADLINE", TypeName = "datetime")]
+        public DateTime? TfaRegDeadline { get; set; }
 
-    public List<EnvelopeReceiver> EnvelopeReceivers { get; set; }
+        public List<EnvelopeReceiver> EnvelopeReceivers { get; set; }
 
-    public string GetSignature() => EmailAddress.ToUpperInvariant().GetChecksum();
-}
-
-#if NETFRAMEWORK
+        public string GetSignature() => EmailAddress.ToUpperInvariant().GetChecksum();
     }
-#endif
+}

EnvelopeGenerator.Domain/Entities/Signature.cs

@@ -1,134 +1,130 @@
-using EnvelopeGenerator.Domain.Interfaces;
+using System;
+using EnvelopeGenerator.Domain.Interfaces;
 using System.ComponentModel;
 using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
+using EnvelopeGenerator.Domain.Interfaces.Auditing;
 #if NETFRAMEWORK
-using System;
 using System.Collections.Generic;
 #endif
 
 namespace EnvelopeGenerator.Domain.Entities
-#if NET
-    ;
-#elif NETFRAMEWORK
-    {
-#endif
-
-[Table("TBSIG_DOCUMENT_RECEIVER_ELEMENT", Schema = "dbo")]
-public class Signature : ISignature, IHasReceiver
 {
-    public Signature()
+    [Table("TBSIG_DOCUMENT_RECEIVER_ELEMENT", Schema = "dbo")]
+    public class Signature : ISignature, IHasReceiver, IHasAddedWhen, IUpdateAuditable
     {
-        // TODO: * Check the Form App and remove the default value
+        public Signature()
+        {
+            // TODO: * Check the Form App and remove the default value
 #if NETFRAMEWORK
-        Id = -1;
-        Required = false;
-        ReadOnly = false;
-        AnnotationIndex = 0;
+            Id = -1;
+            Required = false;
+            ReadOnly = false;
+            AnnotationIndex = 0;
+#endif
+        }
+
+        [Key]
+        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
+        [Column("GUID")]
+        public int Id { get; set; }
+
+        [Required]
+        [Column("DOCUMENT_ID")]
+        public int DocumentId { get; set; }
+
+        [Required]
+        [Column("RECEIVER_ID")]
+        public int ReceiverId { get; set; }
+
+        [Required]
+        [Column("ELEMENT_TYPE")]
+        [DefaultValue(0)]
+        public int ElementType { get; set; }
+
+        [Required]
+        [Column("POSITION_X")]
+        [DefaultValue(0)]
+        public double X { get; set; }
+
+        [Required]
+        [Column("POSITION_Y")]
+        [DefaultValue(0)]
+        public double Y { get; set; }
+
+        [Required]
+        [Column("WIDTH")]
+        [DefaultValue(0)]
+        public double Width { get; set; }
+
+        [Required]
+        [Column("HEIGHT")]
+        [DefaultValue(0)]
+        public double Height { get; set; }
+
+        [Required]
+        [Column("PAGE")]
+        [DefaultValue(1)]
+        public int Page { get; set; }
+
+        [Required]
+        [Column("REQUIRED")]
+        [DefaultValue(false)]
+        public bool Required { get; set; }
+
+        [Column("TOOLTIP")]
+        public string Tooltip { get; set; }
+
+        [Required]
+        [Column("READ_ONLY")]
+        [DefaultValue(false)]
+        public bool ReadOnly { get; set; }
+
+        [Required]
+        [Column("ANNOTATION_INDEX")]
+        [DefaultValue(0)]
+        public int AnnotationIndex { get; set; }
+
+        [Required]
+        [Column("ADDED_WHEN", TypeName = "datetime")]
+        [DefaultValue("GETDATE()")]
+        public DateTime AddedWhen { get; set; }
+
+        [Column("CHANGED_WHEN", TypeName = "datetime")]
+        public DateTime? ChangedWhen { get; set; }
+
+        [Column("CHANGED_WHO", TypeName = "nvarchar(100)")]
+        public string
+#if nullable
+        ?
+#endif
+            ChangedWho
+        { get; set; }
+
+        [ForeignKey("DocumentId")]
+        public virtual Document Document { get; set; }
+
+        [ForeignKey("ReceiverId")]
+        public virtual Receiver
+#if nullable
+        ?
+#endif
+            Receiver
+        { get; set; }
+
+        public virtual IEnumerable<ElementAnnotation>
+#if nullable
+        ?
+#endif
+            Annotations
+        { get; set; }
+
+#if NETFRAMEWORK
+        [NotMapped]
+        public double Top => Math.Round(Y, 5);
+
+        [NotMapped]
+        public double Left => Math.Round(X, 5);
 #endif
     }
-
-    [Key]
-    [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
-    [Column("GUID")]
-    public int Id { get; set; }
-
-    [Required]
-    [Column("DOCUMENT_ID")]
-    public int DocumentId { get; set; }
-
-    [Required]
-    [Column("RECEIVER_ID")]
-    public int ReceiverId { get; set; }
-
-    [Required]
-    [Column("ELEMENT_TYPE")]
-    [DefaultValue(0)]
-    public int ElementType { get; set; }
-
-    [Required]
-    [Column("POSITION_X")]
-    [DefaultValue(0)]
-    public double X { get; set; }
-
-    [Required]
-    [Column("POSITION_Y")]
-    [DefaultValue(0)]
-    public double Y { get; set; }
-
-    [Required]
-    [Column("WIDTH")]
-    [DefaultValue(0)]
-    public double Width { get; set; }
-
-    [Required]
-    [Column("HEIGHT")]
-    [DefaultValue(0)]
-    public double Height { get; set; }
-
-    [Required]
-    [Column("PAGE")]
-    [DefaultValue(1)]
-    public int Page { get; set; }
-
-    [Required]
-    [Column("REQUIRED")]
-    [DefaultValue(false)]
-    public bool Required { get; set; }
-
-    [Column("TOOLTIP")]
-    public string Tooltip { get; set; }
-
-    [Required]
-    [Column("READ_ONLY")]
-    [DefaultValue(false)]
-    public bool ReadOnly { get; set; }
-
-    [Required]
-    [Column("ANNOTATION_INDEX")]
-    [DefaultValue(0)]
-    public int AnnotationIndex { get; set; }
-
-    [Required]
-    [Column("ADDED_WHEN", TypeName = "datetime")]
-    [DefaultValue("GETDATE()")]
-    public DateTime? AddedWhen { get; set; }
-
-    [Column("CHANGED_WHEN", TypeName = "datetime")]
-    public DateTime? ChangedWhen { get; set; }
-
-    [Column("CHANGED_WHO", TypeName = "nvarchar(100)")]
-    public string
-#if NET
-        ?
-#endif
-        ChangedWho { get; set; }
-
-    [ForeignKey("DocumentId")]
-    public virtual Document Document { get; set; }
-
-    [ForeignKey("ReceiverId")]
-    public virtual Receiver
-#if NET
-        ?
-#endif
-        Receiver { get; set; }
-
-    public virtual IEnumerable<ElementAnnotation>
-#if NET
-        ?
-#endif
-        Annotations { get; set; }
-
-#if NETFRAMEWORK
-    [NotMapped]
-    public double Top => Math.Round(Y, 5);
-
-    [NotMapped]
-    public double Left => Math.Round(X, 5);
-#endif
-}
-
-#if NETFRAMEWORK
-    }
-#endif
+}

EnvelopeGenerator.Domain/Interfaces/Auditing/ICreationAuditable.cs

@@ -0,0 +1,6 @@
+namespace EnvelopeGenerator.Domain.Interfaces.Auditing
+{
+    public interface ICreationAuditable : IHasAddedWhen, IHasAddedWho
+    {
+    }
+}

EnvelopeGenerator.Domain/Interfaces/Auditing/IHasAddedWhen.cs

@@ -0,0 +1,11 @@
+#if NETFRAMEWORK
+using System;
+#endif
+
+namespace EnvelopeGenerator.Domain.Interfaces.Auditing
+{
+    public interface IHasAddedWhen
+    {
+        DateTime AddedWhen { get; set; }
+    }
+}

EnvelopeGenerator.Domain/Interfaces/Auditing/IHasAddedWho.cs

@@ -0,0 +1,7 @@
+namespace EnvelopeGenerator.Domain.Interfaces.Auditing
+{
+    public interface IHasAddedWho
+    {
+        string AddedWho { get; set; }
+    }
+}

EnvelopeGenerator.Domain/Interfaces/Auditing/IHasChangedWhen.cs

@@ -0,0 +1,11 @@
+#if NETFRAMEWORK
+using System;
+#endif
+
+namespace EnvelopeGenerator.Domain.Interfaces.Auditing
+{
+    public interface IHasChangedWhen
+    {
+        DateTime? ChangedWhen { get; set; }
+    }
+}

EnvelopeGenerator.Domain/Interfaces/Auditing/IHasChangedWho.cs

@@ -0,0 +1,11 @@
+namespace EnvelopeGenerator.Domain.Interfaces.Auditing
+{
+    public interface IHasChangedWho
+    {
+        string
+#if nullable
+            ?
+#endif
+            ChangedWho { get; set; }
+    }
+}

EnvelopeGenerator.Domain/Interfaces/Auditing/IUpdateAuditable.cs

@@ -0,0 +1,6 @@
+namespace EnvelopeGenerator.Domain.Interfaces.Auditing
+{
+    public interface IUpdateAuditable : IHasChangedWhen, IHasChangedWho
+    {
+    }
+}

EnvelopeGenerator.Domain/Interfaces/IHasEnvelope.cs

@@ -1,22 +1,11 @@
 namespace EnvelopeGenerator.Domain.Interfaces
-#if NET
-    ;
-#elif NETFRAMEWORK
-    {
-#endif
-
-public interface IHasEnvelope
 {
-#if NET
-    public 
-#endif
+    public interface IHasEnvelope
+    {
         Entities.Envelope
-#if NET
-        ?
+#if nullable
+            ?
 #endif
             Envelope { get; set; }
-}
-
-#if NETFRAMEWORK
-}
-#endif
+    }
+}

EnvelopeGenerator.Domain/Interfaces/IHasReceiver.cs

@@ -1,22 +1,11 @@
 namespace EnvelopeGenerator.Domain.Interfaces
-#if NET
-    ;
-#elif NETFRAMEWORK
+{
+    public interface IHasReceiver
     {
-#endif
-
-public interface IHasReceiver
-    {
-#if NET
-    public 
-#endif
         Entities.Receiver
-#if NET
-        ?
+#if nullable
+            ?
 #endif
             Receiver { get; set; }
-}
-
-#if NETFRAMEWORK
-}
-#endif
+    }
+}

EnvelopeGenerator.Web/Controllers/AnnotationController.cs

@@ -15,7 +15,7 @@ using Microsoft.AspNetCore.Mvc;
 
 namespace EnvelopeGenerator.Web.Controllers;
 
-[Authorize(Roles = Role.FullyAuth)]
+[Authorize(Roles = Role.ReceiverFull)]
 [ApiController]
 [Route("api/[controller]")]
 public class AnnotationController : ControllerBase
@@ -42,7 +42,7 @@ public class AnnotationController : ControllerBase
         _logger = logger;
     }
 
-    [Authorize(Roles = Role.FullyAuth)]
+    [Authorize(Roles = Role.ReceiverFull)]
     [HttpPost]
     public async Task<IActionResult> CreateOrUpdate([FromBody] PsPdfKitAnnotation? psPdfKitAnnotation = null, CancellationToken cancel = default)
     {
@@ -80,7 +80,7 @@ public class AnnotationController : ControllerBase
         return Ok();
     }
     
-    [Authorize(Roles = Role.FullyAuth)]
+    [Authorize(Roles = Role.ReceiverFull)]
     [HttpPost("reject")]
     [Obsolete("Use DigitalData.Core.Exceptions and .Middleware")]
     public async Task<IActionResult> Reject([FromBody] string? reason = null)

EnvelopeGenerator.Web/Controllers/DocumentController.cs

@@ -8,7 +8,7 @@ using Microsoft.AspNetCore.Mvc;
 
 namespace EnvelopeGenerator.Web.Controllers;
 
-[Authorize(Roles = Role.FullyAuth)]
+[Authorize(Roles = Role.ReceiverFull)]
 [ApiController]
 [Route("api/[controller]")]
 public class DocumentController : ControllerBase

EnvelopeGenerator.Web/Controllers/EnvelopeController.cs

@@ -107,7 +107,7 @@ public class EnvelopeController : ViewControllerBase
                     return this.ViewEnvelopeNotFound();
                 }
                 var er_secret = er_secret_res.Data;
-                await HttpContext.SignInEnvelopeAsync(er_secret, Role.FullyAuth);
+                await HttpContext.SignInEnvelopeAsync(er_secret, Role.ReceiverFull);
                 return await CreateShowEnvelopeView(er_secret);
             }
             #endregion UseAccessCode
@@ -172,7 +172,7 @@ public class EnvelopeController : ViewControllerBase
             }
 
             // show envelope if already logged in
-            if (User.IsInRole(Role.FullyAuth))
+            if (User.IsInRole(Role.ReceiverFull))
                 return await CreateShowEnvelopeView(er_secret);
 
             if (auth.HasMulti)
@@ -206,7 +206,7 @@ public class EnvelopeController : ViewControllerBase
                         .WithData("ErrorMessage", _localizer.WrongEnvelopeReceiverId());
             }
 
-            await HttpContext.SignInEnvelopeAsync(er_secret, Role.FullyAuth);
+            await HttpContext.SignInEnvelopeAsync(er_secret, Role.ReceiverFull);
 
             return await CreateShowEnvelopeView(er_secret);
         }
@@ -225,9 +225,9 @@ public class EnvelopeController : ViewControllerBase
             && uuidClaim == er.Envelope?.Uuid
             && signatureClaim is not null
             && signatureClaim == er.Receiver?.Signature
-            && User.IsInRole(Role.FullyAuth))
+            && User.IsInRole(Role.ReceiverFull))
         {
-            await HttpContext.SignInEnvelopeAsync(er, Role.FullyAuth);
+            await HttpContext.SignInEnvelopeAsync(er, Role.ReceiverFull);
 
             //add PSPDFKit licence key
             ViewData["PSPDFKitLicenseKey"] = _configuration["PSPDFKitLicenseKey"];
@@ -262,7 +262,7 @@ public class EnvelopeController : ViewControllerBase
             return this.ViewDocumentNotFound();
         }
 
-        await HttpContext.SignInEnvelopeAsync(er, Role.FullyAuth);
+        await HttpContext.SignInEnvelopeAsync(er, Role.ReceiverFull);
 
         ViewData["ReadAndConfirm"] = er.Envelope.ReadOnly;
 
@@ -334,7 +334,7 @@ public class EnvelopeController : ViewControllerBase
                 await _rcvService.UpdateAsync(rcv);
             }
 
-            await HttpContext.SignInEnvelopeAsync(er_secret, Role.PreAuth);
+            await HttpContext.SignInEnvelopeAsync(er_secret, Role.ReceiverTFA);
 
             return await TFAViewAsync(auth.UserSelectSMS, er_secret, envelopeReceiverId);
         }
@@ -348,7 +348,7 @@ public class EnvelopeController : ViewControllerBase
         if (er_secret.Receiver!.TotpSecretkey is null)
             throw new InvalidOperationException($"TotpSecretkey of DTO cannot validate without TotpSecretkey. Dto: {JsonConvert.SerializeObject(er_secret)}");
         
-        if (!User.IsInRole(Role.PreAuth) || !_envSmsHandler.VerifyTotp(auth.SmsCode!, er_secret.Receiver.TotpSecretkey))
+        if (!User.IsInRole(Role.ReceiverTFA) || !_envSmsHandler.VerifyTotp(auth.SmsCode!, er_secret.Receiver.TotpSecretkey))
         {
             Response.StatusCode = StatusCodes.Status401Unauthorized;
             ViewData["ErrorMessage"] = _localizer.WrongAccessCode();
@@ -364,7 +364,7 @@ public class EnvelopeController : ViewControllerBase
         if (er_secret.Receiver!.TotpSecretkey is null)
             throw new InvalidOperationException($"TotpSecretkey of DTO cannot validate without TotpSecretkey. Dto: {JsonConvert.SerializeObject(er_secret)}");
 
-        if (!User.IsInRole(Role.PreAuth) || !_authenticator.VerifyTotp(auth.AuthenticatorCode!, er_secret.Receiver.TotpSecretkey, window: VerificationWindow.RfcSpecifiedNetworkDelay))
+        if (!User.IsInRole(Role.ReceiverTFA) || !_authenticator.VerifyTotp(auth.AuthenticatorCode!, er_secret.Receiver.TotpSecretkey, window: VerificationWindow.RfcSpecifiedNetworkDelay))
         {
             Response.StatusCode = StatusCodes.Status401Unauthorized;
             ViewData["ErrorMessage"] = _localizer.WrongAccessCode();

EnvelopeGenerator.Web/Controllers/ReadOnlyController.cs

@@ -34,7 +34,7 @@ namespace EnvelopeGenerator.Web.Controllers
         }
 
         [HttpPost]
-        [Authorize(Roles = Role.FullyAuth)]
+        [Authorize(Roles = Role.ReceiverFull)]
         [Obsolete("Use MediatR")]
         public async Task<IActionResult> CreateAsync([FromBody] EnvelopeReceiverReadOnlyCreateDto createDto)
         {

EnvelopeGenerator.Web/Controllers/TFARegController.cs

@@ -91,7 +91,7 @@ public class TFARegController : ViewControllerBase
         }
     }
 
-    [Authorize(Roles = Role.FullyAuth)]
+    [Authorize(Roles = Role.ReceiverFull)]
     [HttpPost("auth/logout")]
     public async Task<IActionResult> LogOut()
     {