Add helper methods for color conversion and string checksum generation

- Implemented ToColor extension method to convert predefined ColorType enums to HTML hex colors.
- Added GetChecksum extension method to generate a SHA-256 checksum from a string.
- Included conditional directive for .NET Framework compatibility.

EnvelopeGenerator.Application/Configurations/GtxMessagingParams.cs

@@ -1,4 +1,4 @@
-using DigitalData.Core.Abstractions.Client;
+using DigitalData.Core.Client.Interface;
 namespace EnvelopeGenerator.Application.Configurations;
 
 /// <summary>

EnvelopeGenerator.Application/Contracts/Repositories/IConfigRepository.cs

@@ -1,4 +1,4 @@
-using DigitalData.Core.Abstractions.Infrastructure;
+using DigitalData.Core.Application.Interfaces.Repository;
 using EnvelopeGenerator.Domain.Entities;
 
 namespace EnvelopeGenerator.Application.Contracts.Repositories;

EnvelopeGenerator.Application/Contracts/Repositories/IDocumentReceiverElementRepository.cs

@@ -1,4 +1,4 @@
-using DigitalData.Core.Abstractions.Infrastructure;
+using DigitalData.Core.Application.Interfaces.Repository;
 using EnvelopeGenerator.Domain.Entities;
 
 namespace EnvelopeGenerator.Application.Contracts.Repositories;

EnvelopeGenerator.Application/Contracts/Repositories/IDocumentStatusRepository.cs

@@ -1,4 +1,4 @@
-using DigitalData.Core.Abstractions.Infrastructure;
+using DigitalData.Core.Application.Interfaces.Repository;
 using EnvelopeGenerator.Domain.Entities;
 
 namespace EnvelopeGenerator.Application.Contracts.Repositories;

EnvelopeGenerator.Application/Contracts/Repositories/IEmailTemplateRepository.cs

@@ -1,4 +1,4 @@
-using DigitalData.Core.Abstractions.Infrastructure;
+using DigitalData.Core.Application.Interfaces.Repository;
 using EnvelopeGenerator.Domain.Entities;
 using static EnvelopeGenerator.Common.Constants;
 

EnvelopeGenerator.Application/Contracts/Repositories/IEnvelopeCertificateRepository.cs

@@ -1,4 +1,4 @@
-using DigitalData.Core.Abstractions.Infrastructure;
+using DigitalData.Core.Application.Interfaces.Repository;
 using EnvelopeGenerator.Domain.Entities;
 
 namespace EnvelopeGenerator.Application.Contracts.Repositories;

EnvelopeGenerator.Application/Contracts/Repositories/IEnvelopeDocumentRepository.cs

@@ -1,4 +1,4 @@
-using DigitalData.Core.Abstractions.Infrastructure;
+using DigitalData.Core.Application.Interfaces.Repository;
 using EnvelopeGenerator.Domain.Entities;
 
 namespace EnvelopeGenerator.Application.Contracts.Repositories;

EnvelopeGenerator.Application/Contracts/Repositories/IEnvelopeHistoryRepository.cs

@@ -1,4 +1,4 @@
-using DigitalData.Core.Abstractions.Infrastructure;
+using DigitalData.Core.Application.Interfaces.Repository;
 using EnvelopeGenerator.Domain.Entities;
 
 namespace EnvelopeGenerator.Application.Contracts.Repositories;

EnvelopeGenerator.Application/Contracts/Repositories/IEnvelopeReceiverReadOnlyRepository.cs

@@ -1,4 +1,4 @@
-using DigitalData.Core.Abstractions.Infrastructure;
+using DigitalData.Core.Application.Interfaces.Repository;
 using EnvelopeGenerator.Domain.Entities;
 
 namespace EnvelopeGenerator.Application.Contracts.Repositories;

EnvelopeGenerator.Application/Contracts/Repositories/IEnvelopeReceiverRepository.cs

@@ -1,4 +1,4 @@
-using DigitalData.Core.Abstractions.Infrastructure;
+using DigitalData.Core.Application.Interfaces.Repository;
 using EnvelopeGenerator.Domain.Entities;
 
 namespace EnvelopeGenerator.Application.Contracts.Repositories;

EnvelopeGenerator.Application/Contracts/Repositories/IEnvelopeRepository.cs

@@ -1,4 +1,4 @@
-using DigitalData.Core.Abstractions.Infrastructure;
+using DigitalData.Core.Application.Interfaces.Repository;
 using EnvelopeGenerator.Domain.Entities;
 
 namespace EnvelopeGenerator.Application.Contracts.Repositories;

EnvelopeGenerator.Application/Contracts/Repositories/IEnvelopeTypeRepository.cs

@@ -1,4 +1,4 @@
-using DigitalData.Core.Abstractions.Infrastructure;
+using DigitalData.Core.Application.Interfaces.Repository;
 using EnvelopeGenerator.Domain.Entities;
 
 namespace EnvelopeGenerator.Application.Contracts.Repositories;

EnvelopeGenerator.Application/Contracts/Repositories/IReceiverRepository.cs

@@ -1,4 +1,4 @@
-using DigitalData.Core.Abstractions.Infrastructure;
+using DigitalData.Core.Application.Interfaces.Repository;
 using EnvelopeGenerator.Domain.Entities;
 
 namespace EnvelopeGenerator.Application.Contracts.Repositories;

EnvelopeGenerator.Application/Contracts/Repositories/IUserReceiverRepository.cs

@@ -1,4 +1,4 @@
-using DigitalData.Core.Abstractions.Infrastructure;
+using DigitalData.Core.Application.Interfaces.Repository;
 using EnvelopeGenerator.Domain.Entities;
 
 namespace EnvelopeGenerator.Application.Contracts.Repositories;

EnvelopeGenerator.Application/Contracts/Services/IConfigService.cs

@@ -1,4 +1,4 @@
-using DigitalData.Core.Abstractions.Application;
+using DigitalData.Core.Application.Interfaces;
 using DigitalData.Core.DTO;
 using EnvelopeGenerator.Application.DTOs;
 using EnvelopeGenerator.Domain.Entities;

EnvelopeGenerator.Application/Contracts/Services/IDocumentReceiverElementService.cs

@@ -1,4 +1,4 @@
-using DigitalData.Core.Abstractions.Application;
+using DigitalData.Core.Application.Interfaces;
 using EnvelopeGenerator.Application.DTOs;
 using EnvelopeGenerator.Domain.Entities;
 

EnvelopeGenerator.Application/Contracts/Services/IDocumentStatusService.cs

@@ -1,4 +1,4 @@
-using DigitalData.Core.Abstractions.Application;
+using DigitalData.Core.Application.Interfaces;
 using EnvelopeGenerator.Application.DTOs;
 using EnvelopeGenerator.Domain.Entities;
 namespace EnvelopeGenerator.Application.Contracts.Services;

EnvelopeGenerator.Application/Contracts/Services/IEmailTemplateService.cs

@@ -1,4 +1,4 @@
-using DigitalData.Core.Abstractions.Application;
+using DigitalData.Core.Application.Interfaces;
 using DigitalData.Core.DTO;
 using EnvelopeGenerator.Application.DTOs;
 using EnvelopeGenerator.Domain.Entities;

EnvelopeGenerator.Application/Contracts/Services/IEnvelopeCertificateService.cs

@@ -1,4 +1,4 @@
-using DigitalData.Core.Abstractions.Application;
+using DigitalData.Core.Application.Interfaces;
 using EnvelopeGenerator.Application.DTOs;
 using EnvelopeGenerator.Domain.Entities;
 

EnvelopeGenerator.Application/Contracts/Services/IEnvelopeDocumentService.cs

@@ -1,4 +1,4 @@
-using DigitalData.Core.Abstractions.Application;
+using DigitalData.Core.Application.Interfaces;
 using EnvelopeGenerator.Application.DTOs;
 using EnvelopeGenerator.Domain.Entities;
 

EnvelopeGenerator.Application/Contracts/Services/IEnvelopeHistoryService.cs

@@ -1,4 +1,4 @@
-using DigitalData.Core.Abstractions.Application;
+using DigitalData.Core.Application.Interfaces;
 using DigitalData.Core.DTO;
 using EnvelopeGenerator.Application.DTOs.EnvelopeHistory;
 using EnvelopeGenerator.Application.DTOs.Receiver;

EnvelopeGenerator.Application/Contracts/Services/IEnvelopeReceiverReadOnlyService.cs

@@ -1,4 +1,4 @@
-using DigitalData.Core.Abstractions.Application;
+using DigitalData.Core.Application.Interfaces;
 using EnvelopeGenerator.Application.DTOs.EnvelopeReceiverReadOnly;
 using EnvelopeGenerator.Domain.Entities;
 

EnvelopeGenerator.Application/Contracts/Services/IEnvelopeReceiverService.cs

@@ -1,5 +1,5 @@
 using CommandDotNet;
-using DigitalData.Core.Abstractions.Application;
+using DigitalData.Core.Application.Interfaces;
 using DigitalData.Core.DTO;
 using EnvelopeGenerator.Application.DTOs.EnvelopeReceiver;
 using EnvelopeGenerator.Application.DTOs.Messaging;

EnvelopeGenerator.Application/Contracts/Services/IEnvelopeService.cs

@@ -1,4 +1,4 @@
-using DigitalData.Core.Abstractions.Application;
+using DigitalData.Core.Application.Interfaces;
 using DigitalData.Core.DTO;
 using EnvelopeGenerator.Application.DTOs;
 using EnvelopeGenerator.Domain.Entities;

EnvelopeGenerator.Application/Contracts/Services/IEnvelopeTypeService.cs

@@ -1,4 +1,4 @@
-using DigitalData.Core.Abstractions.Application;
+using DigitalData.Core.Application.Interfaces;
 using EnvelopeGenerator.Application.DTOs;
 using EnvelopeGenerator.Domain.Entities;
 

EnvelopeGenerator.Application/Contracts/Services/IReceiverService.cs

@@ -1,5 +1,5 @@
 using DigitalData.Core.Abstractions;
-using DigitalData.Core.Abstractions.Application;
+using DigitalData.Core.Application.Interfaces;
 using DigitalData.Core.DTO;
 using EnvelopeGenerator.Application.DTOs.Receiver;
 using EnvelopeGenerator.Domain.Entities;
@@ -12,5 +12,5 @@ public interface IReceiverService : ICRUDService<ReceiverCreateDto, ReceiverRead
 
     Task<Result> DeleteByAsync(string? emailAddress = null, string? signature = null);
 
-    Task<Result> UpdateAsync<TUpdateDto>(TUpdateDto updateDto) where TUpdateDto : IUnique<int>;
+    Task<Result> UpdateAsync<TUpdateDto>(TUpdateDto updateDto);
 }

EnvelopeGenerator.Application/Contracts/Services/IUserReceiverService.cs

@@ -1,4 +1,4 @@
-using DigitalData.Core.Abstractions.Application;
+using DigitalData.Core.Application.Interfaces;
 using EnvelopeGenerator.Application.DTOs;
 using EnvelopeGenerator.Domain.Entities;
 

EnvelopeGenerator.Application/DTOs/ConfigDto.cs

@@ -1,21 +1,35 @@
-using DigitalData.Core.Abstractions;
+using Microsoft.AspNetCore.Mvc;
-using Microsoft.AspNetCore.Mvc;
-using System.ComponentModel.DataAnnotations.Schema;
-using System.Text.Json.Serialization;
 
-namespace EnvelopeGenerator.Application.DTOs
+namespace EnvelopeGenerator.Application.DTOs;
+
+/// <summary>
+/// Data Transfer Object representing configuration settings.
+/// </summary>
+[ApiExplorerSettings(IgnoreApi = true)]
+public class ConfigDto
 {
-    [ApiExplorerSettings(IgnoreApi = true)]
+    /// <summary>
-    public record ConfigDto(
+    /// Gets or sets the path to the document.
-        string DocumentPath,
+    /// </summary>
-        int SendingProfile,
+    public string DocumentPath { get; set; }
-        string SignatureHost,
+
-        string ExternalProgramName,
+    /// <summary>
-        string ExportPath) : IUnique<int>
+    /// Gets or sets the sending profile identifier.
-    {
+    /// </summary>
-        [NotMapped]
+    public int SendingProfile { get; set; }
-        [JsonIgnore]
+
-        [Obsolete("Configuration does not have an ID; it represents a single table in the database.")]
+    /// <summary>
-        public int Id => throw new InvalidOperationException("This configuration does not support an ID as it represents a single row in the database.");
+    /// Gets or sets the signature host URL or name.
-    };
+    /// </summary>
+    public string SignatureHost { get; set; }
+
+    /// <summary>
+    /// Gets or sets the name of the external program.
+    /// </summary>
+    public string ExternalProgramName { get; set; }
+
+    /// <summary>
+    /// Gets or sets the path where exports will be saved.
+    /// </summary>
+    public string ExportPath { get; set; }
 }

EnvelopeGenerator.Application/DTOs/DocumentReceiverElementDto.cs

@@ -1,26 +1,95 @@
-using DigitalData.Core.Abstractions;
+using Microsoft.AspNetCore.Mvc;
-using Microsoft.AspNetCore.Mvc;
 
-namespace EnvelopeGenerator.Application.DTOs
+namespace EnvelopeGenerator.Application.DTOs;
+
+/// <summary>
+/// Data Transfer Object representing a positioned element assigned to a document receiver.
+/// </summary>
+[ApiExplorerSettings(IgnoreApi = true)]
+public class DocumentReceiverElementDto
 {
-    [ApiExplorerSettings(IgnoreApi = true)]
+    /// <summary>
-    public record DocumentReceiverElementDto(
+    /// Gets or sets the unique identifier of the element.
-        int Id,
+    /// </summary>
-        int DocumentId,
+    public int Id { get; set; }
-        int ReceiverId,
+
-        int ElementType,
+    /// <summary>
-        double X,
+    /// Gets or sets the identifier of the associated document.
-        double Y,
+    /// </summary>
-        double Width,
+    public int DocumentId { get; set; }
-        double Height,
+
-        int Page,
+    /// <summary>
-        bool Required,
+    /// Gets or sets the identifier of the receiver.
-        string? Tooltip,
+    /// </summary>
-        bool ReadOnly,
+    public int ReceiverId { get; set; }
-        int AnnotationIndex,
+
-        DateTime AddedWhen,
+    /// <summary>
-        DateTime? ChangedWhen,
+    /// Gets or sets the type of the element.
-        double Top,
+    /// </summary>
-        double Left
+    public int ElementType { get; set; }
-        ): IUnique<int>;
+
+    /// <summary>
+    /// Gets or sets the X coordinate of the element.
+    /// </summary>
+    public double X { get; set; }
+
+    /// <summary>
+    /// Gets or sets the Y coordinate of the element.
+    /// </summary>
+    public double Y { get; set; }
+
+    /// <summary>
+    /// Gets or sets the width of the element.
+    /// </summary>
+    public double Width { get; set; }
+
+    /// <summary>
+    /// Gets or sets the height of the element.
+    /// </summary>
+    public double Height { get; set; }
+
+    /// <summary>
+    /// Gets or sets the page number where the element appears.
+    /// </summary>
+    public int Page { get; set; }
+
+    /// <summary>
+    /// Gets or sets a value indicating whether the element is required.
+    /// </summary>
+    public bool Required { get; set; }
+
+    /// <summary>
+    /// Gets or sets the tooltip text for the element.
+    /// </summary>
+    public string? Tooltip { get; set; }
+
+    /// <summary>
+    /// Gets or sets a value indicating whether the element is read-only.
+    /// </summary>
+    public bool ReadOnly { get; set; }
+
+    /// <summary>
+    /// Gets or sets the annotation index for ordering or reference.
+    /// </summary>
+    public int AnnotationIndex { get; set; }
+
+    /// <summary>
+    /// Gets or sets the timestamp when the element was added.
+    /// </summary>
+    public DateTime AddedWhen { get; set; }
+
+    /// <summary>
+    /// Gets or sets the timestamp when the element was last changed, if applicable.
+    /// </summary>
+    public DateTime? ChangedWhen { get; set; }
+
+    /// <summary>
+    /// Gets or sets the top position of the element (in layout terms).
+    /// </summary>
+    public double Top { get; set; }
+
+    /// <summary>
+    /// Gets or sets the left position of the element (in layout terms).
+    /// </summary>
+    public double Left { get; set; }
 }

EnvelopeGenerator.Application/DTOs/DocumentStatusDto.cs

@@ -1,18 +1,50 @@
-using DigitalData.Core.Abstractions;
+using Microsoft.AspNetCore.Mvc;
-using Microsoft.AspNetCore.Mvc;
 
-namespace EnvelopeGenerator.Application.DTOs
+namespace EnvelopeGenerator.Application.DTOs;
+
+/// <summary>
+/// Data Transfer Object representing the status of a document for a specific receiver.
+/// </summary>
+[ApiExplorerSettings(IgnoreApi = true)]
+public class DocumentStatusDto
 {
-    [ApiExplorerSettings(IgnoreApi = true)]
+    /// <summary>
-    public record DocumentStatusDto(
+    /// Gets or sets the unique identifier of the document status entry.
-        int Id,
+    /// </summary>
-        int EnvelopeId,
+    public int Id { get; set; }
-        int ReceiverId,
+
-        int Status,
+    /// <summary>
-        DateTime? StatusChangedWhen,
+    /// Gets or sets the ID of the associated envelope.
-        DateTime AddedWhen,
+    /// </summary>
-        DateTime? ChangedWhen) : IUnique<int>
+    public int EnvelopeId { get; set; }
-    {
+
-        public string? Value { get; set; }
+    /// <summary>
-    };
+    /// Gets or sets the ID of the receiver associated with this status.
+    /// </summary>
+    public int ReceiverId { get; set; }
+
+    /// <summary>
+    /// Gets or sets the current status code.
+    /// </summary>
+    public int Status { get; set; }
+
+    /// <summary>
+    /// Gets or sets the timestamp when the status was changed.
+    /// </summary>
+    public DateTime? StatusChangedWhen { get; set; }
+
+    /// <summary>
+    /// Gets or sets the timestamp when this record was added.
+    /// </summary>
+    public DateTime AddedWhen { get; set; }
+
+    /// <summary>
+    /// Gets or sets the timestamp when this record was last changed.
+    /// </summary>
+    public DateTime? ChangedWhen { get; set; }
+
+    /// <summary>
+    /// Gets or sets the display value associated with the status.
+    /// </summary>
+    public string? Value { get; set; }
 }

EnvelopeGenerator.Application/DTOs/EmailTemplateDto.cs

@@ -1,5 +1,4 @@
-using DigitalData.Core.Abstractions;
+using Microsoft.AspNetCore.Mvc;
-using Microsoft.AspNetCore.Mvc;
 
 namespace EnvelopeGenerator.Application.DTOs
 {
@@ -7,7 +6,7 @@ namespace EnvelopeGenerator.Application.DTOs
     /// 
     /// </summary>
     [ApiExplorerSettings(IgnoreApi = true)]
-    public record EmailTemplateDto : IUnique<int>
+    public record EmailTemplateDto
     {
         /// <summary>
         /// 

EnvelopeGenerator.Application/DTOs/EnvelopeCertificateDto.cs

@@ -1,16 +1,50 @@
-using DigitalData.Core.Abstractions;
+using Microsoft.AspNetCore.Mvc;
-using Microsoft.AspNetCore.Mvc;
 
-namespace EnvelopeGenerator.Application.DTOs
+namespace EnvelopeGenerator.Application.DTOs;
+
+/// <summary>
+/// Data Transfer Object representing certificate information for an envelope.
+/// </summary>
+[ApiExplorerSettings(IgnoreApi = true)]
+public class EnvelopeCertificateDto
 {
-    [ApiExplorerSettings(IgnoreApi = true)]
+    /// <summary>
-    public record EnvelopeCertificateDto(
+    /// Gets the unique identifier of the certificate.
-        int Id,
+    /// </summary>
-        int EnvelopeId,
+    public int Id { get; init; }
-        string EnvelopeUuid,
+
-        string EnvelopeSubject,
+    /// <summary>
-        int CreatorId,
+    /// Gets the envelope ID associated with the certificate.
-        string CreatorName,
+    /// </summary>
-        string CreatorEmail,
+    public int EnvelopeId { get; init; }
-        int EnvelopeStatus) : IUnique<int>;
+
+    /// <summary>
+    /// Gets the UUID of the envelope.
+    /// </summary>
+    public string EnvelopeUuid { get; init; }
+
+    /// <summary>
+    /// Gets the subject of the envelope.
+    /// </summary>
+    public string EnvelopeSubject { get; init; }
+
+    /// <summary>
+    /// Gets the ID of the creator of the envelope.
+    /// </summary>
+    public int CreatorId { get; init; }
+
+    /// <summary>
+    /// Gets the name of the creator.
+    /// </summary>
+    public string CreatorName { get; init; }
+
+    /// <summary>
+    /// Gets the email address of the creator.
+    /// </summary>
+    public string CreatorEmail { get; init; }
+
+    /// <summary>
+    /// Gets the current status of the envelope.
+    /// </summary>
+    public int EnvelopeStatus { get; init; }
 }

EnvelopeGenerator.Application/DTOs/EnvelopeDocumentDto.cs

@@ -1,15 +1,35 @@
-using DigitalData.Core.Abstractions;
+using Microsoft.AspNetCore.Mvc;
-using Microsoft.AspNetCore.Mvc;
 
-namespace EnvelopeGenerator.Application.DTOs
+namespace EnvelopeGenerator.Application.DTOs;
+
+/// <summary>
+/// Data Transfer Object representing a document within an envelope, including optional binary data and form elements.
+/// </summary>
+[ApiExplorerSettings(IgnoreApi = true)]
+public class EnvelopeDocumentDto
 {
-    [ApiExplorerSettings(IgnoreApi = true)]
+    /// <summary>
-    public record EnvelopeDocumentDto
+    /// Gets or sets the unique identifier of the document.
-    (
+    /// </summary>
-        int Id,
+    public int Id { get; set; }
-        int EnvelopeId,
+
-        DateTime AddedWhen,
+    /// <summary>
-        byte[]? ByteData = null,
+    /// Gets or sets the envelope ID to which the document belongs.
-        IEnumerable<DocumentReceiverElementDto>? Elements = null
+    /// </summary>
-    ) : IUnique<int>;
+    public int EnvelopeId { get; set; }
+
+    /// <summary>
+    /// Gets or sets the date and time when the document was added.
+    /// </summary>
+    public DateTime AddedWhen { get; set; }
+
+    /// <summary>
+    /// Gets or sets the binary data of the document, if available.
+    /// </summary>
+    public byte[]? ByteData { get; set; }
+
+    /// <summary>
+    /// Gets or sets the collection of elements associated with the document for receiver interactions, if any.
+    /// </summary>
+    public IEnumerable<DocumentReceiverElementDto>? Elements { get; set; }
 }

EnvelopeGenerator.Application/DTOs/EnvelopeDto.cs

@@ -1,56 +1,54 @@
-using DigitalData.Core.Abstractions;
+using DigitalData.EmailProfilerDispatcher.Abstraction.Attributes;
-using DigitalData.EmailProfilerDispatcher.Abstraction.Attributes;
 using DigitalData.UserManager.Application.DTOs.User;
 using EnvelopeGenerator.Domain.Entities;
 using Microsoft.AspNetCore.Mvc;
 
-namespace EnvelopeGenerator.Application.DTOs
+namespace EnvelopeGenerator.Application.DTOs;
+
+[ApiExplorerSettings(IgnoreApi = true)]
+public record EnvelopeDto
 {
-    [ApiExplorerSettings(IgnoreApi = true)]
+	public int Id { get; set; }
-    public record EnvelopeDto() : IUnique<int>
-    {
-		public int Id { get; set; }
 
-		public int UserId { get; set; }
+	public int UserId { get; set; }
 
-		public int Status { get; set; }
+	public int Status { get; set; }
 
-		public string StatusName { get; set; }
+	public string StatusName { get; set; }
 
-        public string Uuid { get; set; }
+    public string Uuid { get; set; }
 
-		[TemplatePlaceholder("[MESSAGE]")]
+	[TemplatePlaceholder("[MESSAGE]")]
-		public string Message { get; set; }
+	public string Message { get; set; }
 
-		public DateTime AddedWhen { get; set; }
+	public DateTime AddedWhen { get; set; }
 
-		public DateTime? ChangedWhen { get; set; }
+	public DateTime? ChangedWhen { get; set; }
 
-		[TemplatePlaceholder("[DOCUMENT_TITLE]")]
+	[TemplatePlaceholder("[DOCUMENT_TITLE]")]
-		public string Title { get; set; }
+	public string Title { get; set; }
 
-		public int? ContractType { get; set; }
+	public int? ContractType { get; set; }
 
-		public string Language { get; set; }
+	public string Language { get; set; }
 
-		public int? EnvelopeTypeId { get; set; }
+	public int? EnvelopeTypeId { get; set; }
 
-		public int? CertificationType { get; set; }
+	public int? CertificationType { get; set; }
 
-		public bool? UseAccessCode { get; set; }
+	public bool? UseAccessCode { get; set; }
 
-        public bool TFAEnabled { get; init; }
+    public bool TFAEnabled { get; init; }
 
-		public UserReadDto? User { get; set; }
+	public UserReadDto? User { get; set; }
 
-		public EnvelopeType? EnvelopeType { get; set; }
+	public EnvelopeType? EnvelopeType { get; set; }
 
-		public string? EnvelopeTypeTitle { get; set; }
+	public string? EnvelopeTypeTitle { get; set; }
 
-		public bool IsAlreadySent { get; set; }
+	public bool IsAlreadySent { get; set; }
 
-        public byte[]? DocResult { get; init; }
+    public byte[]? DocResult { get; init; }
 
-        public IEnumerable<EnvelopeDocumentDto>? Documents { get; set; }
+    public IEnumerable<EnvelopeDocumentDto>? Documents { get; set; }
-	}
 }

EnvelopeGenerator.Application/DTOs/EnvelopeHistory/EnvelopeHistoryCreateDto.cs

@@ -1,12 +1,34 @@
 using Microsoft.AspNetCore.Mvc;
 
-namespace EnvelopeGenerator.Application.DTOs.EnvelopeHistory
+namespace EnvelopeGenerator.Application.DTOs.EnvelopeHistory;
+
+/// <summary>
+/// Data Transfer Object for creating a new envelope history record.
+/// </summary>
+public class EnvelopeHistoryCreateDto
 {
-    [ApiExplorerSettings(IgnoreApi = true)]
+    /// <summary>
-    public record EnvelopeHistoryCreateDto(
+    /// Gets or sets the identifier of the envelope.
-        int EnvelopeId,
+    /// </summary>
-        string UserReference,
+    public int EnvelopeId { get; set; }
-        int Status,
+
-        DateTime? ActionDate,
+    /// <summary>
-        string? Comment = null);
+    /// Gets or sets the user reference associated with the action.
+    /// </summary>
+    public required string UserReference { get; set; }
+
+    /// <summary>
+    /// Gets or sets the status of the envelope at the time of the action.
+    /// </summary>
+    public int Status { get; set; }
+
+    /// <summary>
+    /// Gets or sets the date and time when the action occurred.
+    /// </summary>
+    public DateTime? ActionDate { get; set; }
+
+    /// <summary>
+    /// Gets or sets an optional comment related to the action.
+    /// </summary>
+    public string? Comment { get; set; }
 }

EnvelopeGenerator.Application/DTOs/EnvelopeHistory/EnvelopeHistoryDto.cs

@@ -1,36 +1,73 @@
 using DigitalData.Core.Abstractions;
-using DigitalData.Core.DTO;
 using DigitalData.UserManager.Application.DTOs.User;
 using EnvelopeGenerator.Application.DTOs.Receiver;
-using Microsoft.AspNetCore.Mvc;
 using static EnvelopeGenerator.Common.Constants;
 
 namespace EnvelopeGenerator.Application.DTOs.EnvelopeHistory;
 
 /// <summary>
-/// 
+/// Data Transfer Object representing the history of an envelope, including status, sender, receiver, and related metadata.
 /// </summary>
-/// <param name="Id"></param>
+public record EnvelopeHistoryDto : IUnique<long>
-/// <param name="EnvelopeId"></param>
+{
-/// <param name="UserReference"></param>
+    /// <summary>
-/// <param name="Status"></param>
+    /// Unique identifier for the envelope history entry.
-/// <param name="StatusName"></param>
+    /// </summary>
-/// <param name="AddedWhen"></param>
+    public long Id { get; set; }
-/// <param name="ActionDate"></param>
+
-/// <param name="Sender"></param>
+    /// <summary>
-/// <param name="Receiver"></param>
+    /// Identifier of the associated envelope.
-/// <param name="ReferenceType"></param>
+    /// </summary>
-/// <param name="Comment"></param>
+    public int EnvelopeId { get; set; }
-[ApiExplorerSettings(IgnoreApi = true)]
+
-public record EnvelopeHistoryDto(
+    /// <summary>
-    long Id,
+    /// Reference string for the user related to this history entry.
-    int EnvelopeId,
+    /// </summary>
-    string UserReference,
+    public string UserReference { get; set; }
-    int Status,
+
-    string? StatusName,
+    /// <summary>
-    DateTime AddedWhen,
+    /// Status code of the envelope at this history point.
-    DateTime? ActionDate,
+    /// </summary>
-    UserCreateDto? Sender,
+    public int Status { get; set; }
-    ReceiverReadDto? Receiver,
+
-    ReferenceType ReferenceType,
+    /// <summary>
-    string? Comment = null) : BaseDTO<long>(Id), IUnique<long>;
+    /// Human-readable name of the status.
+    /// </summary>
+    public string? StatusName { get; set; }
+
+    /// <summary>
+    /// Date and time when this history entry was added.
+    /// </summary>
+    public DateTime AddedWhen { get; set; }
+
+    /// <summary>
+    /// Date and time when an action was performed, if applicable.
+    /// </summary>
+    public DateTime? ActionDate { get; set; }
+
+    /// <summary>
+    /// Information about the sender associated with this history entry.
+    /// </summary>
+    public UserCreateDto? Sender { get; set; }
+
+    /// <summary>
+    /// Information about the receiver associated with this history entry.
+    /// </summary>
+    public ReceiverReadDto? Receiver { get; set; }
+
+    /// <summary>
+    /// Type of reference for this history entry.
+    /// </summary>
+    public ReferenceType ReferenceType { get; set; }
+
+    /// <summary>
+    /// Optional comment related to this history entry.
+    /// </summary>
+    public string? Comment { get; set; }
+
+    /// <inheritdoc/>
+    public override int GetHashCode()
+    {
+        return Id.GetHashCode();
+    }
+};

EnvelopeGenerator.Application/DTOs/EnvelopeReceiverReadOnly/EnvelopeReceiverReadOnlyDto.cs

@@ -1,18 +1,62 @@
 using EnvelopeGenerator.Application.DTOs.Receiver;
 using Microsoft.AspNetCore.Mvc;
 
-namespace EnvelopeGenerator.Application.DTOs.EnvelopeReceiverReadOnly
+namespace EnvelopeGenerator.Application.DTOs.EnvelopeReceiverReadOnly;
+
+/// <summary>
+/// Represents a read-only Data Transfer Object (DTO) for an envelope receiver.
+/// Contains information about the receiver, associated envelope, and audit details.
+/// </summary>
+[ApiExplorerSettings(IgnoreApi = true)]
+public class EnvelopeReceiverReadOnlyDto
 {
-    [ApiExplorerSettings(IgnoreApi = true)]
+    /// <summary>
-    public record EnvelopeReceiverReadOnlyDto(
+    /// Gets or inits the unique identifier of the envelope receiver.
-        long Id,
+    /// </summary>
-        long EnvelopeId,
+    public long Id { get; init; }
-        string ReceiverMail,
+
-        DateTime DateValid,
+    /// <summary>
-        DateTime AddedWhen,
+    /// Gets or inits the identifier of the associated envelope.
-        string AddedWho,
+    /// </summary>
-        EnvelopeDto? Envelope = null,              
+    public long EnvelopeId { get; init; }
-        string? ChangedWho = null,
+
-        DateTime? ChangedWhen = null,
+    /// <summary>
-        ReceiverReadDto? Receiver = null);
+    /// Gets or inits the email address of the receiver.
+    /// </summary>
+    public string ReceiverMail { get; set; }
+
+    /// <summary>
+    /// Gets or inits the date until which the receiver is valid.
+    /// </summary>
+    public DateTime DateValid { get; set; }
+
+    /// <summary>
+    /// Gets or inits the date and time when the receiver was added.
+    /// </summary>
+    public DateTime AddedWhen { get; init; }
+
+    /// <summary>
+    /// Gets or inits the user who added the receiver.
+    /// </summary>
+    public string AddedWho { get; init; }
+
+    /// <summary>
+    /// Gets or inits the associated envelope details.
+    /// </summary>
+    public EnvelopeDto? Envelope { get; set; }
+
+    /// <summary>
+    /// Gets or inits the user who last changed the receiver, if any.
+    /// </summary>
+    public string? ChangedWho { get; set; }
+
+    /// <summary>
+    /// Gets or inits the date and time when the receiver was last changed, if any.
+    /// </summary>
+    public DateTime? ChangedWhen { get; set; }
+
+    /// <summary>
+    /// Gets or inits the associated receiver details.
+    /// </summary>
+    public ReceiverReadDto? Receiver { get; set; }
 }

EnvelopeGenerator.Application/DTOs/EnvelopeReceiverReadOnly/EnvelopeReceiverReadOnlyUpdateDto.cs

@@ -1,14 +1,31 @@
 using DigitalData.Core.Abstractions;
 using Microsoft.AspNetCore.Mvc;
 
-namespace EnvelopeGenerator.Application.DTOs.EnvelopeReceiverReadOnly
+namespace EnvelopeGenerator.Application.DTOs.EnvelopeReceiverReadOnly;
+
+/// <summary>
+/// Data Transfer Object for updating a read-only envelope receiver.
+/// </summary>
+[ApiExplorerSettings(IgnoreApi = true)]
+public class EnvelopeReceiverReadOnlyUpdateDto : IUnique<long>
 {
-    [ApiExplorerSettings(IgnoreApi = true)]
+    /// <summary>
-    public record EnvelopeReceiverReadOnlyUpdateDto(
+    /// Gets or sets the unique identifier of the envelope receiver.
-        long Id,
+    /// </summary>
-        DateTime DateValid,
+    public long Id { get; init; }
-        string ChangedWho) : IUnique<long>
+
-    {
+    /// <summary>
-        public DateTime ChangedWhen { get; } = DateTime.Now;
+    /// Gets or sets the date when the envelope receiver becomes valid.
-    };
+    /// </summary>
+    public DateTime DateValid { get; set; }
+
+    /// <summary>
+    /// Gets or sets the name of the user who made the change.
+    /// </summary>
+    public string ChangedWho { get; set; }
+
+    /// <summary>
+    /// Gets or sets the date and time when the change was made.
+    /// </summary>
+    public DateTime ChangedWhen { get; set; } = DateTime.Now;
 }

EnvelopeGenerator.Application/DTOs/EnvelopeTypeDto.cs

@@ -1,23 +1,85 @@
-using DigitalData.Core.Abstractions;
+using Microsoft.AspNetCore.Mvc;
-using Microsoft.AspNetCore.Mvc;
 
-namespace EnvelopeGenerator.Application.DTOs
+namespace EnvelopeGenerator.Application.DTOs;
+
+/// <summary>
+/// Data Transfer Object representing a type of envelope with its configuration settings.
+/// </summary>
+[ApiExplorerSettings(IgnoreApi = true)]
+public class EnvelopeTypeDto
 {
-    [ApiExplorerSettings(IgnoreApi = true)]
+    /// <summary>
-    public record EnvelopeTypeDto(
+    /// Gets or sets the unique identifier of the envelope type.
-        int Id,
+    /// </summary>
-        string Title,
+    public int Id { get; set; }
-        string Language,
+
-        int? ExpiresDays,
+    /// <summary>
-        int? CertificationType,
+    /// Gets or sets the title of the envelope type.
-        bool? UseAccessCode,
+    /// </summary>
-        int? FinalEmailToCreator,
+    public string Title { get; set; }
-        int? FinalEmailToReceivers,
+
-        DateTime AddedWhen,
+    /// <summary>
-        DateTime? ChangedWhen,
+    /// Gets or sets the language code used in this envelope type.
-        int? ExpiresWarningDays,
+    /// </summary>
-        bool? SendReminderEmails,
+    public string Language { get; set; }
-        int? FirstReminderDays,
+
-        int? ReminderIntervalDays,
+    /// <summary>
-        int? ContractType) : IUnique<int>;
+    /// Gets or sets the number of days after which the envelope expires.
+    /// </summary>
+    public int? ExpiresDays { get; set; }
+
+    /// <summary>
+    /// Gets or sets the certification type identifier.
+    /// </summary>
+    public int? CertificationType { get; set; }
+
+    /// <summary>
+    /// Gets or sets a value indicating whether an access code is required.
+    /// </summary>
+    public bool? UseAccessCode { get; set; }
+
+    /// <summary>
+    /// Gets or sets the final email template ID to be sent to the creator.
+    /// </summary>
+    public int? FinalEmailToCreator { get; set; }
+
+    /// <summary>
+    /// Gets or sets the final email template ID to be sent to the receivers.
+    /// </summary>
+    public int? FinalEmailToReceivers { get; set; }
+
+    /// <summary>
+    /// Gets or sets the timestamp when this envelope type was added.
+    /// </summary>
+    public DateTime AddedWhen { get; set; }
+
+    /// <summary>
+    /// Gets or sets the timestamp when this envelope type was last changed.
+    /// </summary>
+    public DateTime? ChangedWhen { get; set; }
+
+    /// <summary>
+    /// Gets or sets the number of days before expiry when a warning should be sent.
+    /// </summary>
+    public int? ExpiresWarningDays { get; set; }
+
+    /// <summary>
+    /// Gets or sets a value indicating whether reminder emails should be sent.
+    /// </summary>
+    public bool? SendReminderEmails { get; set; }
+
+    /// <summary>
+    /// Gets or sets the number of days before the first reminder is sent.
+    /// </summary>
+    public int? FirstReminderDays { get; set; }
+
+    /// <summary>
+    /// Gets or sets the interval in days between reminder emails.
+    /// </summary>
+    public int? ReminderIntervalDays { get; set; }
+
+    /// <summary>
+    /// Gets or sets the contract type associated with the envelope type.
+    /// </summary>
+    public int? ContractType { get; set; }
 }

EnvelopeGenerator.Application/DTOs/Receiver/ReceiverCreateDto.cs

@@ -3,21 +3,30 @@ using System.ComponentModel.DataAnnotations;
 using System.Security.Cryptography;
 using System.Text;
 
-namespace EnvelopeGenerator.Application.DTOs.Receiver
+namespace EnvelopeGenerator.Application.DTOs.Receiver;
-{
-    [ApiExplorerSettings(IgnoreApi = true)]
-    public record ReceiverCreateDto([EmailAddress] string EmailAddress, string? TotpSecretkey = null)
-    {
-        public string Signature => sha256HexOfMail.Value;
 
-        private readonly Lazy<string> sha256HexOfMail = new(() =>
+[ApiExplorerSettings(IgnoreApi = true)]
+public record ReceiverCreateDto
+{
+    public ReceiverCreateDto()
+    {
+        _sha256HexOfMail = new(() =>
         {
             var bytes_arr = Encoding.UTF8.GetBytes(EmailAddress.ToUpper());
             var hash_arr = SHA256.HashData(bytes_arr);
             var hexa_str = BitConverter.ToString(hash_arr);
             return hexa_str.Replace("-", string.Empty);
         });
+    }
 
-        public DateTime AddedWhen { get; } = DateTime.Now;
+    [EmailAddress]
-    };
+    public required string EmailAddress { get; init; }
-}
+
+    public string? TotpSecretkey { get; init; }
+
+    public string Signature => _sha256HexOfMail.Value;
+
+    private readonly Lazy<string> _sha256HexOfMail;
+
+    public DateTime AddedWhen { get; } = DateTime.Now;
+};

EnvelopeGenerator.Application/DTOs/Receiver/ReceiverReadDto.cs

@@ -1,25 +1,31 @@
-using DigitalData.Core.Abstractions;
+using EnvelopeGenerator.Application.DTOs.EnvelopeReceiver;
-using DigitalData.Core.DTO;
-using EnvelopeGenerator.Application.DTOs.EnvelopeReceiver;
 using Microsoft.AspNetCore.Mvc;
 using System.Text.Json.Serialization;
 
 namespace EnvelopeGenerator.Application.DTOs.Receiver;
 
 [ApiExplorerSettings(IgnoreApi = true)]
-public record ReceiverReadDto(
+public class ReceiverReadDto
-    int Id,
-    string EmailAddress,
-    string Signature,
-    DateTime AddedWhen
-    ) : BaseDTO<int>(Id), IUnique<int>
 {
+    public int Id { get; set; }
+
+    public string EmailAddress { get; set; }
+
+    public string Signature { get; set; }
+
+    public DateTime AddedWhen { get; set; }
+
     [JsonIgnore]
-    public IEnumerable<EnvelopeReceiverBasicDto>? EnvelopeReceivers { get; init; }
+    public IEnumerable<EnvelopeReceiverBasicDto>? EnvelopeReceivers { get; set; }
 
     public string? LastUsedName => EnvelopeReceivers?.LastOrDefault()?.Name;
 
     public string? TotpSecretkey { get; set; } = null;
 
     public DateTime? TfaRegDeadline { get; set; }
-};
+
+    public override int GetHashCode()
+    {
+        return Id.GetHashCode();
+    }
+}

EnvelopeGenerator.Application/DTOs/Receiver/ReceiverUpdateDto.cs

@@ -1,7 +1,27 @@
-using DigitalData.Core.Abstractions;
+using Microsoft.AspNetCore.Mvc;
-using Microsoft.AspNetCore.Mvc;
 
 namespace EnvelopeGenerator.Application.DTOs.Receiver;
 
+/// <summary>
+/// Data Transfer Object for updating a receiver's information.
+/// </summary>
 [ApiExplorerSettings(IgnoreApi = true)]
-public record ReceiverUpdateDto(int Id, string? TotpSecretkey = null, DateTime? TfaRegDeadline = null) : IUnique<int>;
+public class ReceiverUpdateDto
+{
+    /// <summary>
+    /// Gets or sets the unique identifier of the receiver.
+    /// </summary>
+    public int Id { get; set; }
+
+    /// <summary>
+    /// Gets or sets the TOTP (Time-based One-Time Password) secret key.
+    /// Optional.
+    /// </summary>
+    public string? TotpSecretkey { get; set; }
+
+    /// <summary>
+    /// Gets or sets the deadline for two-factor authentication registration.
+    /// Optional.
+    /// </summary>
+    public DateTime? TfaRegDeadline { get; set; }
+}

EnvelopeGenerator.Application/DTOs/UserReceiverDto.cs

@@ -1,15 +1,45 @@
-using DigitalData.Core.Abstractions;
+using Microsoft.AspNetCore.Mvc;
-using Microsoft.AspNetCore.Mvc;
 
-namespace EnvelopeGenerator.Application.DTOs
+namespace EnvelopeGenerator.Application.DTOs;
+
+/// <summary>
+/// Data Transfer Object representing a user receiver with associated details.
+/// </summary>
+[ApiExplorerSettings(IgnoreApi = true)]
+public class UserReceiverDto
 {
-    [ApiExplorerSettings(IgnoreApi = true)]
+    /// <summary>
-    public record UserReceiverDto(
+    /// Gets or sets the unique identifier of the user receiver.
-        int Id,
+    /// </summary>
-        int UserId,
+    public int Id { get; set; }
-        int ReceiverId,
+
-        string Name,
+    /// <summary>
-        string CompanyName,
+    /// Gets or sets the identifier of the user associated with the receiver.
-        string JobTitle,
+    /// </summary>
-        DateTime AddedWhen) : IUnique<int>;
+    public int UserId { get; set; }
+
+    /// <summary>
+    /// Gets or sets the identifier of the receiver.
+    /// </summary>
+    public int ReceiverId { get; set; }
+
+    /// <summary>
+    /// Gets or sets the name of the receiver.
+    /// </summary>
+    public string Name { get; set; }
+
+    /// <summary>
+    /// Gets or sets the company name of the receiver.
+    /// </summary>
+    public string CompanyName { get; set; }
+
+    /// <summary>
+    /// Gets or sets the job title of the receiver.
+    /// </summary>
+    public string JobTitle { get; set; }
+
+    /// <summary>
+    /// Gets or sets the timestamp when the user receiver was added.
+    /// </summary>
+    public DateTime AddedWhen { get; set; }
 }

EnvelopeGenerator.Application/Documents/Queries/Read/ReadDocumentQueryHandler.cs

@@ -1,4 +1,4 @@
-using DigitalData.Core.Abstractions.Infrastructure;
+using DigitalData.Core.Application.Interfaces.Repository;
 using EnvelopeGenerator.Domain.Entities;
 using MediatR;
 

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

@@ -1,6 +1,5 @@
-using DigitalData.Core.Abstractions.Infrastructure;
+using DigitalData.Core.Application.Interfaces.Repository;
 using EnvelopeGenerator.Application.DTOs;
-using EnvelopeGenerator.Application.EmailTemplates.Queries.Read;
 using EnvelopeGenerator.Domain.Entities;
 using MediatR;
 
@@ -70,7 +69,7 @@ public class ResetEmailTemplateCommandHandler : IRequestHandler<ResetEmailTempla
         new(){
         Id = 4,
         Name = "DocumentCompleted",
-        Body = "Guten Tag [NAME_RECEIVER],<br />\r\n<br />\r\nDer Signaturvorgang <B><I>'[DOCUMENT_TITLE]'</I></B> wurde erfolgreich abgeschlossen.<br />\r\n<br />\r\nSie erhalten das Dokument mit einem detaillierten Ergebnisbericht als Anhang zu dieser Email.<br />\r\n<br />\r\nMit freundlichen Grüßen<br />\r\n<br />\r\n[NAME_PORTAL]",
+        Body = "Guten Tag [NAME_RECEIVER],<br />\r\n<br />\r\nDer Signaturvorgang <B><I>'[DOCUMENT_TITLE]'</I></B> wurde erfolgreich abgeschlossen.<br />\r\n<br />\r\nSie erhalten das Dokument mit einem detaillierten Ergebnisbericht als Anhang zu dieser EmailAddress.<br />\r\n<br />\r\nMit freundlichen Grüßen<br />\r\n<br />\r\n[NAME_PORTAL]",
         Subject = "Umschlag abgeschlossen: '[DOCUMENT_TITLE]'"
         },
         new(){

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

@@ -1,4 +1,4 @@
-using DigitalData.Core.Abstractions.Infrastructure;
+using DigitalData.Core.Application.Interfaces.Repository;
 using EnvelopeGenerator.Application.DTOs;
 using EnvelopeGenerator.Application.Exceptions;
 using EnvelopeGenerator.Domain.Entities;

EnvelopeGenerator.Application/EnvelopeGenerator.Application.csproj

@@ -14,16 +14,13 @@
 
 	<ItemGroup>
 		<PackageReference Include="Dapper" Version="2.1.66" />
-		<PackageReference Include="DigitalData.Core.Abstractions" Version="3.6.0" />
+		<PackageReference Include="DigitalData.Core.Abstractions" Version="4.0.0" />
-		<PackageReference Include="DigitalData.Core.Application" Version="3.2.1" />
+		<PackageReference Include="DigitalData.Core.Application" Version="3.3.1" />
-		<PackageReference Include="DigitalData.Core.Client" Version="2.0.3" />
+		<PackageReference Include="DigitalData.Core.Client" Version="2.1.0" />
-		<PackageReference Include="DigitalData.Core.DTO" Version="2.0.1" />
+		<PackageReference Include="DigitalData.EmailProfilerDispatcher" Version="3.1.0" />
-		<PackageReference Include="DigitalData.EmailProfilerDispatcher" Version="3.0.0" />
 		<PackageReference Include="MediatR" Version="12.5.0" />
 		<PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="7.0.18" />
-		<PackageReference Include="Microsoft.Data.SqlClient" Version="5.1.1" />
+		<PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="9.0.5" />
-		<PackageReference Include="Microsoft.Data.SqlClient" Version="6.0.2" />
-		<PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="9.0.4" />
 		<PackageReference Include="Otp.NET" Version="1.4.0" />
 		<PackageReference Include="QRCoder" Version="1.6.0" />
 		<PackageReference Include="QRCoder-ImageSharp" Version="0.10.0" />
@@ -65,6 +62,7 @@
 
 	<ItemGroup Condition="'$(TargetFramework)' == 'net7.0'">
 	  <PackageReference Include="AutoMapper" Version="13.0.1" />
+	  <PackageReference Include="Microsoft.Data.SqlClient" Version="5.2.3" />
 	  <PackageReference Include="CommandDotNet">
 		<Version>7.0.5</Version>
 	  </PackageReference>
@@ -72,6 +70,7 @@
 
 	<ItemGroup Condition="'$(TargetFramework)' == 'net8.0'">
 	  <PackageReference Include="AutoMapper" Version="14.0.0" />
+	  <PackageReference Include="Microsoft.Data.SqlClient" Version="6.0.2" />
 	  <PackageReference Include="CommandDotNet">
 	    <Version>8.1.1</Version>
 	  </PackageReference>
@@ -79,6 +78,7 @@
 
 	<ItemGroup Condition="'$(TargetFramework)' == 'net9.0'">
 	  <PackageReference Include="AutoMapper" Version="14.0.0" />
+	  <PackageReference Include="Microsoft.Data.SqlClient" Version="6.0.2" />
 	  <PackageReference Include="CommandDotNet">
 	    <Version>8.1.1</Version>
 	  </PackageReference>

EnvelopeGenerator.Application/Services/EnvelopeHistoryService.cs

@@ -7,6 +7,7 @@ using DigitalData.Core.DTO;
 using EnvelopeGenerator.Application.DTOs.EnvelopeHistory;
 using EnvelopeGenerator.Application.DTOs.Receiver;
 using EnvelopeGenerator.Application.Contracts.Services;
+using DigitalData.Core.Application.DTO;
 
 namespace EnvelopeGenerator.Application.Services;
 
@@ -76,9 +77,16 @@ public class EnvelopeHistoryService : CRUDService<IEnvelopeHistoryRepository, En
 		}
 
 		public async Task<DataResult<long>> RecordAsync(int envelopeId, string userReference, EnvelopeStatus status, string? comment = null) => 
-        await CreateAsync(new (EnvelopeId: envelopeId, UserReference: userReference, Status: (int)status, ActionDate: DateTime.Now, Comment: comment))
+        await CreateAsync(new ()
+        {
+            EnvelopeId = envelopeId,
+            UserReference = userReference,
+            Status = (int) status,
+            ActionDate = DateTime.Now,
+            Comment = comment
+        })
             .ThenAsync(
-                Success: id => Result.Success(id),
+                Success: dto => Result.Success(dto.Id),
                 Fail: (mssg, ntc) => Result.Fail<long>().Message(mssg).Notice(ntc)
             );
 }

EnvelopeGenerator.Application/Services/GTXSmsSender.cs

@@ -1,5 +1,5 @@
 using AutoMapper;
-using DigitalData.Core.Abstractions.Client;
+using DigitalData.Core.Client.Interface;
 using DigitalData.Core.Client;
 using EnvelopeGenerator.Application.Configurations;
 using EnvelopeGenerator.Application.Contracts.Services;

EnvelopeGenerator.Application/Services/ReceiverService.cs

@@ -4,7 +4,6 @@ using EnvelopeGenerator.Domain.Entities;
 using EnvelopeGenerator.Application.Contracts.Repositories;
 using EnvelopeGenerator.Application.DTOs.Receiver;
 using DigitalData.Core.DTO;
-using DigitalData.Core.Abstractions;
 using Microsoft.Extensions.Logging;
 using EnvelopeGenerator.Application.Contracts.Services;
 
@@ -37,12 +36,12 @@ public class ReceiverService : CRUDService<IReceiverRepository, ReceiverCreateDt
         return await _repository.DeleteAsync(rcv) ? Result.Success() : Result.Fail();
     }
 
-    public virtual async Task<Result> UpdateAsync<TUpdateDto>(TUpdateDto updateDto) where TUpdateDto : IUnique<int>
+    public virtual async Task<Result> UpdateAsync<TUpdateDto>(TUpdateDto updateDto)
     {
-        var val = await _repository.ReadByIdAsync(updateDto.Id);
+        var val = await _repository.ReadByIdAsync(updateDto.GetId<int>());
         if (val == null)
         {
-            return Result.Fail().Notice(LogLevel.Warning, Flag.NotFound, $"{updateDto.Id} is not found in update process of {GetType()} entity.");
+            return Result.Fail().Notice(LogLevel.Warning, Flag.NotFound, $"{updateDto.GetIdOrDefault<int>()} is not found in update process of {GetType()} entity.");
         }
 
         var entity = _mapper.Map(updateDto, val);

EnvelopeGenerator.Common/Constants.vb

@@ -1,152 +0,0 @@
-Public Class Constants
-
-#Region "Status Fields"
-    'http://wiki.dd/xwiki13/bin/view/Anwendungen/Produkt-Handbuch/Sonstiges/SignFlow/Envelope%20Status/
-    Public Enum EnvelopeStatus
-        Invalid = 0
-        EnvelopeCreated = 1001
-        EnvelopeSaved = 1002
-        EnvelopeQueued = 1003
-        EnvelopeSent = 1004 ' Nicht verwendet
-        EnvelopePartlySigned = 1005
-        EnvelopeCompletelySigned = 1006
-        EnvelopeReportCreated = 1007
-        EnvelopeArchived = 1008
-        EnvelopeDeleted = 1009
-        EnvelopeRejected = 10007
-        EnvelopeWithdrawn = 10009
-        AccessCodeRequested = 2001
-        AccessCodeCorrect = 2002
-        AccessCodeIncorrect = 2003
-        DocumentOpened = 2004
-        DocumentSigned = 2005
-        DocumentForwarded = 2006
-        DocumentRejected = 2007
-        EnvelopeShared = 2008
-        EnvelopeViewed = 2009
-        MessageInvitationSent = 3001        ' Wird von Trigger verwendet
-        MessageAccessCodeSent = 3002
-        MessageConfirmationSent = 3003
-        MessageDeletionSent = 3004
-        MessageCompletionSent = 3005
-        DocumentMod_Rotation = 4001
-    End Enum
-
-    Public Class Status
-        Public Shared ReadOnly NonHist As IReadOnlyList(Of EnvelopeStatus) = New List(Of EnvelopeStatus) From {
-            EnvelopeStatus.Invalid,
-            EnvelopeStatus.EnvelopeSaved,
-            EnvelopeStatus.EnvelopeSent,
-            EnvelopeStatus.EnvelopePartlySigned
-        }
-
-        Public Shared ReadOnly RelatedToFormApp As IReadOnlyList(Of EnvelopeStatus) = New List(Of EnvelopeStatus) From {
-            EnvelopeStatus.EnvelopeCreated,
-            EnvelopeStatus.DocumentMod_Rotation
-        }
-    End Class
-
-    'TODO: standardize in xwiki
-    Public Enum ReferenceType
-        Sender = 1
-        Receiver
-        System
-        Unknown
-    End Enum
-
-    Public Enum ElementStatus
-        Created = 0
-    End Enum
-
-    Public Enum DocumentStatus
-        Created = 0
-        Signed = 1
-    End Enum
-
-    Public Enum ReceiverStatus
-        Unsigned = 0
-        Signed = 1
-    End Enum
-#End Region
-
-#Region "Type Fields"
-    Public Enum ElementType
-        Signature = 1
-    End Enum
-
-    Public Enum ContractType
-        Contract = 1
-        ReadAndSign = 2
-    End Enum
-
-    Public Enum ColorType
-        ReceiverColor1 = 1
-        ReceiverColor2 = 2
-        ReceiverColor3 = 3
-        ReceiverColor4 = 4
-        ReceiverColor5 = 5
-        ReceiverColor6 = 6
-        ReceiverColor7 = 7
-        ReceiverColor8 = 8
-        ReceiverColor9 = 9
-        ReceiverColor10 = 10
-    End Enum
-
-    Public Enum CertificationType
-        AdvancedElectronicSignature = 1
-        'ElectronicSignature = 1
-        'QualifiedSignature = 2
-    End Enum
-
-    Public Enum FinalEmailType
-        No = 0
-        Yes = 1
-        YesWithAttachment = 2
-    End Enum
-
-    Public Enum PageOrientation
-        Portrait = 0
-        Landscape = 1
-    End Enum
-
-    Public Enum EmailTemplateType
-        DocumentReceived = 0
-        DocumentSigned
-        DocumentDeleted
-        DocumentCompleted
-        DocumentAccessCodeReceived
-        DocumentShared
-        TotpSecret
-        DocumentRejected_ADM
-        DocumentRejected_REC
-        DocumentRejected_REC_2
-    End Enum
-
-    Public Enum EncodeType
-        EnvelopeReceiver
-        EnvelopeReceiverReadOnly
-        Undefined
-        DocumentForwarded
-        DocumentShared
-    End Enum
-#End Region
-
-#Region "Role"
-    Public NotInheritable Class ReceiverRole
-        Public Const PreAuth As String = "PreAuth"
-        Public Const FullyAuth As String = "FullyAuth"
-    End Class
-#End Region
-
-#Region "Constants"
-
-    Public Const DATABASE = "DATABASE"
-    Public Const LOGCONFIG = "LOGCONFIG"
-    Public Const GDPICTURE = "GDPICTURE"
-    Public Const PDF_BURNER_PARAMS = "PDFBurnerParams"
-
-    Public Const GREEN_300 = "#bbf7d0"
-    Public Const RED_300 = "#fecaca"
-    Public Const ORANGE_300 = "#fed7aa"
-#End Region
-End Class

EnvelopeGenerator.Common/Entities/DocumentStatus.vb

@@ -1,10 +0,0 @@
-Public Class DocumentStatus
-
-    Public Property Id As Integer
-    Public Property EnvelopeId As Integer
-    Public Property ReceiverId As Integer
-    Public Property Value As String
-    Public Property Status As Constants.DocumentStatus = Constants.DocumentStatus.Created
-    Public Property StatusChangedWhen As Date
-
-End Class

EnvelopeGenerator.Common/Entities/ElementMetadata.vb

@@ -1,4 +0,0 @@
-Public Class ElementMetadata
-    Public Property Index As Integer
-    Public Property Page As Integer
-End Class

EnvelopeGenerator.Common/Entities/ElementStatus.vb

@@ -1,4 +1,7 @@
-Public Class ElementStatus
+Imports EnvelopeGenerator.Domain
+
+<Obsolete("Tabelle TBSIG_ELEMENT_STATUS entfernt")>
+Public Class ElementStatus
 
     Public Property Id As Integer
     Public Property EnvelopeId As Integer

EnvelopeGenerator.Common/Entities/EmailData.vb

@@ -1,4 +1,4 @@
-
+Imports EnvelopeGenerator.Domain
 Public Class EmailData
     Public Property EmailAdress As String = ""
     Public Property EmailSubject As String = ""
@@ -27,8 +27,8 @@ Public Class EmailData
     ''' <param name="pEnvelope"></param>
     ''' <param name="pReceiver"></param>
     ''' <param name="pStatus"></param>
-    Public Sub New(pEnvelope As Envelope, pReceiver As EnvelopeReceiver, pStatus As Constants.EnvelopeStatus)
+    Public Sub New(pEnvelope As Envelope, pReceiver As Receiver, pStatus As Constants.EnvelopeStatus)
-        EmailAdress = pReceiver.Email
+        EmailAdress = pReceiver.EmailAddress
         EmailSubject = String.Empty
         EmailType = pStatus
 

EnvelopeGenerator.Common/Entities/EmailTemplate.vb

@@ -1,8 +0,0 @@
-Public Class EmailTemplate
-
-    Public Property Id As Integer
-    Public Property Name As String
-    Public Property Body As String
-    Public Property Subject As String
-
-End Class

EnvelopeGenerator.Common/Entities/Envelope.vb

@@ -1,4 +1,7 @@
-Public Class Envelope
+Imports EnvelopeGenerator.Domain
+Imports EnvelopeGenerator.Domain.Entities
+
+Public Class Envelope
     Public Property Id As Integer = 0
     Public Property UserId As Integer
     Public Property Title As String = ""
@@ -29,7 +32,7 @@
     Public Property User As New User()
 
     Public Property Documents As New List(Of EnvelopeDocument)
-    Public Property Receivers As New List(Of EnvelopeReceiver)
+    Public Property Receivers As New List(Of Receiver)
     Public Property History As New List(Of EnvelopeHistoryEntry)
     Public Property EnvelopeType As EnvelopeType
     Public Property DOC_RESULT As Byte()

EnvelopeGenerator.Common/Entities/EnvelopeDocumentElement.vb

@@ -1,4 +1,6 @@
-Public Class EnvelopeDocumentElement
+Imports EnvelopeGenerator.Domain
+
+Public Class EnvelopeDocumentElement
     Public Property Id As Integer = -1
     Public Property X As Double
     Public Property Y As Double

EnvelopeGenerator.Common/Entities/EnvelopeHistoryEntry.vb

@@ -1,4 +1,6 @@
-Public Class EnvelopeHistoryEntry
+Imports EnvelopeGenerator.Domain
+
+Public Class EnvelopeHistoryEntry
     Public Property EnvelopeId As Integer
     Public Property UserReference As String
     Public Property Status As Constants.EnvelopeStatus

EnvelopeGenerator.Common/Entities/EnvelopeReceiver.vb

@@ -1,83 +1,4 @@
-Imports System.Drawing
+Public Class EnvelopeReceiver
-Imports System.Runtime.Serialization
+    Public Property Envelope As Envelope
-Imports DevExpress.Utils.Svg
+    Public Property Receiver As Receiver
-Imports DigitalData.Modules.Base
-Imports EnvelopeGenerator.Common.Constants
-Imports Newtonsoft.Json
-
-Public Class EnvelopeReceiver
-    Public Property Id As Integer = 0
-    Public Property UserId As Integer
-    Public Property Signature As String
-    Public ReadOnly Property Color As Color
-        Get
-            Return Helpers.ColorTypeToColor(ColorType)
-        End Get
-    End Property
-
-    <JsonIgnore>
-    Public ReadOnly Property Image As SvgBitmap
-        Get
-            Try
-                Return SvgBitmap.FromFile("Images/circle.svg")
-            Catch ex As Exception
-                Return Nothing
-            End Try
-        End Get
-    End Property
-
-
-    Public Property ColorType As ColorType
-
-    Public Property Name As String
-
-    Public Property Company As String = ""
-
-    Public Property JobTitle As String = ""
-
-    Public Property Email As String
-
-    Public Property Status As ReceiverStatus
-
-    Public ReadOnly Property StatusTranslated As String
-        Get
-            Dim oStatus = Status.ToString()
-            Return My.Resources.Model.ResourceManager.GetString(oStatus)
-        End Get
-    End Property
-
-    Public Property SignedDate As DateTime = DateTime.MinValue
-
-    Public ReadOnly Property SignedDateDisplayValue As String
-        Get
-            If SignedDate = DateTime.MinValue Then
-                Return "-"
-            Else
-                Return SignedDate.ToString("G")
-            End If
-
-        End Get
-    End Property
-
-    Public ReadOnly Property HasId As Boolean
-        Get
-            Return Id > 0
-        End Get
-    End Property
-
-    Public ReadOnly Property HasEmailAndName As Boolean
-        Get
-            Return String.IsNullOrWhiteSpace(Email) = False And
-                String.IsNullOrWhiteSpace(Name) = False
-        End Get
-    End Property
-
-    Public Property Sequence As Integer = 0
-    Public Property PrivateMessage As String = ""
-    Public Property AccessCode As String = ""
-    Public Property PhoneNumber As String = ""
-
-    Public Function GetSignature() As String
-        Return StringEx.GetChecksum(Email.ToUpper)
-    End Function
 End Class

EnvelopeGenerator.Common/Entities/EnvelopeResponse.vb

@@ -1,4 +0,0 @@
-Public Class EnvelopeResponse
-    Public Property Envelope As Envelope
-    Public Property Receiver As EnvelopeReceiver
-End Class

EnvelopeGenerator.Common/Entities/EnvelopeType.vb

@@ -1,4 +1,5 @@
-Public Class EnvelopeType
+Imports EnvelopeGenerator.Domain
+Public Class EnvelopeType
 
     Public Property Id As Integer = 0
     Public Property Title As String

EnvelopeGenerator.Common/Entities/Receiver.vb

@@ -0,0 +1,60 @@
+Imports System.Drawing
+Imports DigitalData.Modules.Base
+Imports EnvelopeGenerator.Domain.Constants
+
+Public Class Receiver
+    Public Property Id As Integer = 0
+    Public Property Signature As String
+    Public ReadOnly Property Color As Color
+        Get
+            Return Helpers.ColorTypeToColor(ColorType)
+        End Get
+    End Property
+
+    Public Property ColorType As ColorType
+
+    Public Property Name As String
+
+    Public Property Company As String = ""
+
+    Public Property JobTitle As String = ""
+
+    Public Property EmailAddress As String
+
+    Public Property Status As ReceiverStatus
+
+    Public Property SignedDate As DateTime = DateTime.MinValue
+
+    Public ReadOnly Property SignedDateDisplayValue As String
+        Get
+            If SignedDate = DateTime.MinValue Then
+                Return "-"
+            Else
+                Return SignedDate.ToString("G")
+            End If
+
+        End Get
+    End Property
+
+    Public ReadOnly Property HasId As Boolean
+        Get
+            Return Id > 0
+        End Get
+    End Property
+
+    Public ReadOnly Property HasEmailAndName As Boolean
+        Get
+            Return String.IsNullOrWhiteSpace(EmailAddress) = False And
+                String.IsNullOrWhiteSpace(Name) = False
+        End Get
+    End Property
+
+    Public Property Sequence As Integer = 0
+    Public Property PrivateMessage As String = ""
+    Public Property AccessCode As String = ""
+    Public Property PhoneNumber As String = ""
+
+    Public Function GetSignature() As String
+        Return StringEx.GetChecksum(EmailAddress.ToUpper)
+    End Function
+End Class

EnvelopeGenerator.Common/Entities/State.vb

@@ -1,5 +1,6 @@
 Imports DigitalData.Modules.Database
 Imports DigitalData.Modules.Logging
+Imports EnvelopeGenerator.Domain.Entities
 
 Public Class State
     Public Property UserId As Integer

EnvelopeGenerator.Common/Entities/User.vb

@@ -1,18 +0,0 @@
-Public Class User
-    Public Property Id As Integer = 0
-    Public Property Prename As String
-    Public Property Name As String
-    Public Property Username As String
-    Public Property Email As String
-    Public Property Language As String
-
-    Public Property HasAccess As Boolean
-    Public Property IsAdmin As Boolean
-    Public Property GhostModeActive As Boolean
-
-    Public ReadOnly Property FullName() As String
-        Get
-            Return Prename + " " + Name
-        End Get
-    End Property
-End Class

EnvelopeGenerator.Common/EnvelopeGenerator.Common.vbproj

@@ -274,13 +274,9 @@
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Config.vb" />
-    <Compile Include="Constants.vb" />
     <Compile Include="Entities\DbConfig.vb" />
-    <Compile Include="Entities\ElementMetadata.vb" />
-    <Compile Include="Entities\DocumentStatus.vb" />
     <Compile Include="Entities\ElementStatus.vb" />
     <Compile Include="Entities\EmailData.vb" />
-    <Compile Include="Entities\EmailTemplate.vb" />
     <Compile Include="Jobs\APIBackendJobs\APIEnvelopeJob.vb" />
     <Compile Include="Jobs\FinalizeDocument\PDFBurnerParams.vb" />
     <Compile Include="Services\TemplateService.vb" />
@@ -288,11 +284,10 @@
     <Compile Include="Entities\EnvelopeDocument.vb" />
     <Compile Include="Entities\EnvelopeDocumentElement.vb" />
     <Compile Include="Entities\EnvelopeHistoryEntry.vb" />
+    <Compile Include="Entities\Receiver.vb" />
     <Compile Include="Entities\EnvelopeReceiver.vb" />
-    <Compile Include="Entities\EnvelopeResponse.vb" />
     <Compile Include="Entities\EnvelopeType.vb" />
     <Compile Include="Entities\State.vb" />
-    <Compile Include="Entities\User.vb" />
     <Compile Include="Helpers.vb" />
     <Compile Include="Jobs\FinalizeDocument\FinalizeDocumentExceptions.vb" />
     <Compile Include="Jobs\FinalizeDocument\FinalizeDocumentJob.vb" />
@@ -443,7 +438,12 @@
     <EmbeddedResource Include="Templates\document_access_code_de.html" />
     <EmbeddedResource Include="Templates\email_de.html" />
   </ItemGroup>
-  <ItemGroup />
+  <ItemGroup>
+    <ProjectReference Include="..\EnvelopeGenerator.Domain\EnvelopeGenerator.Domain.csproj">
+      <Project>{4f32a98d-e6f0-4a09-bd97-1cf26107e837}</Project>
+      <Name>EnvelopeGenerator.Domain</Name>
+    </ProjectReference>
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.VisualBasic.targets" />
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>

EnvelopeGenerator.Common/Helpers.vb

@@ -3,7 +3,7 @@ Imports System.IO
 Imports System.Security.Cryptography
 Imports System.Text
 Imports DevExpress.Utils.Svg
-Imports EnvelopeGenerator.Common.Constants
+Imports EnvelopeGenerator.Domain.Constants
 
 Public Class Helpers
     Private Shared key As String = "$xzBvyPETUS&amm8)D8x#)f;4%;?[BPd" ' Passwort-Schlüssel (16, 24, or 32 bytes)

EnvelopeGenerator.Common/Jobs/APIBackendJobs/APIEnvelopeJob.vb

@@ -1,16 +1,9 @@
 Imports DigitalData.Modules.Database
 Imports DigitalData.Modules.Logging
 Imports DigitalData.Modules.Base
-Imports GdPicture14
 Imports Quartz
 Imports System.Security.Cryptography
-Imports System.IO
-Imports EnvelopeGenerator.Common.Jobs.FinalizeDocument.FinalizeDocumentExceptions
-Imports EnvelopeGenerator.Common.Jobs.FinalizeDocument
-Imports EnvelopeGenerator.Common.Constants
 Imports DevExpress.DataProcessing
-Imports System.Data.SqlClient
-Imports DevExpress.XtraRichEdit.Layout.Engine
 
 Namespace Jobs
     Public Class APIEnvelopeJob
@@ -39,7 +32,7 @@ Namespace Jobs
         End Class
 
         Public Function Execute(pContext As IJobExecutionContext) As Task Implements IJob.Execute
-            LogConfig = pContext.MergedJobDataMap.Item(Constants.LOGCONFIG)
+            LogConfig = pContext.MergedJobDataMap.Item(Domain.Constants.LOGCONFIG)
             Logger = LogConfig.GetLogger()
             myTempFiles = New TempFiles(LogConfig)
             myTempFiles.Create()
@@ -179,7 +172,7 @@ Namespace Jobs
             ActionService = New ActionService(pState, Database)
         End Sub
         Private Function GetDatabase(pContext As IJobExecutionContext, pLogConfig As LogConfig) As MSSQLServer
-            Dim oConnectionString As String = pContext.MergedJobDataMap.Item(Constants.DATABASE)
+            Dim oConnectionString As String = pContext.MergedJobDataMap.Item(Domain.Constants.DATABASE)
             Dim Database = New MSSQLServer(pLogConfig, MSSQLServer.DecryptConnectionString(oConnectionString))
 
             Return Database

EnvelopeGenerator.Common/Jobs/FinalizeDocument/FinalizeDocumentJob.vb

@@ -7,7 +7,7 @@ Imports System.Security.Cryptography
 Imports System.IO
 Imports EnvelopeGenerator.Common.Jobs.FinalizeDocument.FinalizeDocumentExceptions
 Imports EnvelopeGenerator.Common.Jobs.FinalizeDocument
-Imports EnvelopeGenerator.Common.Constants
+Imports EnvelopeGenerator.Domain.Constants
 Imports DevExpress.DataProcessing
 Imports System.Data.SqlClient
 
@@ -47,8 +47,8 @@ Namespace Jobs
         End Class
 
         Public Function Execute(pContext As IJobExecutionContext) As Task Implements IJob.Execute
-            Dim oGdPictureKey As String = pContext.MergedJobDataMap.Item(Constants.GDPICTURE)
+            Dim oGdPictureKey As String = pContext.MergedJobDataMap.Item(Domain.Constants.GDPICTURE)
-            LogConfig = pContext.MergedJobDataMap.Item(Constants.LOGCONFIG)
+            LogConfig = pContext.MergedJobDataMap.Item(Domain.Constants.LOGCONFIG)
             Logger = LogConfig.GetLogger()
             myTempFiles = New TempFiles(LogConfig)
             myTempFiles.Create()
@@ -74,7 +74,7 @@ Namespace Jobs
                 InitializeServices(oState)
 
                 Logger.Debug("Loading PDFBurner..")
-                Dim pdfBurnerParams As PDFBurnerParams = pContext.MergedJobDataMap.Item(Constants.PDF_BURNER_PARAMS)
+                Dim pdfBurnerParams As PDFBurnerParams = pContext.MergedJobDataMap.Item(PDF_BURNER_PARAMS)
                 PDFBurner = New PDFBurner(LogConfig, oGdPictureKey, pdfBurnerParams)
 
                 Logger.Debug("Loading PDFMerger..")
@@ -90,7 +90,7 @@ Namespace Jobs
 
                 Logger.Debug("ExportPath: [{0}]", Config.ExportPath)
 
-                Dim oCompleteStatus As Integer = Constants.EnvelopeStatus.EnvelopeCompletelySigned
+                Dim oCompleteStatus As Integer = EnvelopeStatus.EnvelopeCompletelySigned
                 Dim oSql = $"SELECT * FROM TBSIG_ENVELOPE WHERE STATUS = {oCompleteStatus} AND DATEDIFF(minute, CHANGED_WHEN, GETDATE()) >= {CompleteWaitTime} ORDER BY GUID"
                 Dim oTable = Database.GetDatatable(oSql)
 
@@ -334,7 +334,7 @@ Namespace Jobs
 
             For Each oReceiver In pEnvelope.Receivers
                 If ActionService.CompleteEnvelope(pEnvelope, oReceiver) = False Then ', oAttachment
-                    Logger.Error("Envelope could not be completed for receiver [{0}]", oReceiver.Email)
+                    Logger.Error("Envelope could not be completed for receiver [{0}]", oReceiver.EmailAddress)
                     Return False
                 End If
             Next
@@ -436,7 +436,7 @@ Namespace Jobs
         End Sub
 
         Private Function GetDatabase(pContext As IJobExecutionContext, pLogConfig As LogConfig) As MSSQLServer
-            Dim oConnectionString As String = pContext.MergedJobDataMap.Item(Constants.DATABASE)
+            Dim oConnectionString As String = pContext.MergedJobDataMap.Item(Domain.Constants.DATABASE)
             Dim Database = New MSSQLServer(pLogConfig, MSSQLServer.DecryptConnectionString(oConnectionString))
 
             Return Database

EnvelopeGenerator.Common/Jobs/FinalizeDocument/ReportItem.vb

@@ -1,4 +1,4 @@
-Imports System.Windows.Forms.VisualStyles.VisualStyleElement
+Imports EnvelopeGenerator.Domain
 
 Public Class ReportItem
 

EnvelopeGenerator.Common/Models/DocumentStatusModel.vb

@@ -1,4 +1,5 @@
 Imports System.Data.SqlClient
+Imports EnvelopeGenerator.Domain.Entities
 
 Public Class DocumentStatusModel
     Inherits BaseModel

EnvelopeGenerator.Common/Models/ElementModel.vb

@@ -1,6 +1,6 @@
-Imports System.Data
+Imports System.Data.SqlClient
-Imports System.Data.SqlClient
 Imports DigitalData.Modules.Base
+Imports EnvelopeGenerator.Domain
 
 Public Class ElementModel
     Inherits BaseModel

EnvelopeGenerator.Common/Models/ElementStatusModel.vb

@@ -1,5 +1,6 @@
 Imports System.Data.SqlClient
 
+<Obsolete("Tabelle TBSIG_ELEMENT_STATUS entfernt")>
 Public Class ElementStatusModel
     Inherits BaseModel
 
@@ -7,6 +8,7 @@ Public Class ElementStatusModel
         MyBase.New(pState)
     End Sub
 
+    <Obsolete("Tabelle TBSIG_ELEMENT_STATUS entfernt")>
     Public Function Insert(pElementStatus As ElementStatus) As Boolean
         Try
             Dim oSql = "INSERT INTO [dbo].[TBSIG_ELEMENT_STATUS]
@@ -41,6 +43,7 @@ Public Class ElementStatusModel
         End Try
     End Function
 
+    <Obsolete("Tabelle TBSIG_ELEMENT_STATUS entfernt")>
     Public Function Update(pElementStatus As ElementStatus) As Boolean
         Try
             Dim oSql = "UPDATE [dbo].[TBSIG_ELEMENT_STATUS]
@@ -68,6 +71,7 @@ Public Class ElementStatusModel
         End Try
     End Function
 
+    <Obsolete("Tabelle TBSIG_ELEMENT_STATUS entfernt")>
     Private Function GetElementId(pElement As ElementStatus) As Integer
         Try
             Return Database.GetScalarValue($"SELECT MAX(GUID) FROM TBSIG_ELEMENT_STATUS 

EnvelopeGenerator.Common/Models/EmailTemplateModel.vb

@@ -1,5 +1,6 @@
 Imports DigitalData.Modules.Base
-Imports EnvelopeGenerator.Common.Constants
+Imports EnvelopeGenerator.Domain.Constants
+Imports EnvelopeGenerator.Domain.Entities
 
 Public Class EmailTemplateModel
     Inherits BaseModel

EnvelopeGenerator.Common/Models/EnvelopeModel.vb

@@ -1,8 +1,8 @@
 Imports System.Data.SqlClient
-Imports System.Web.UI.WebControls
 Imports DigitalData.Modules.Base
 Imports DigitalData.Modules.Logging
-Imports EnvelopeGenerator.Common.Constants
+Imports EnvelopeGenerator.Domain.Constants
+Imports EnvelopeGenerator.Domain.Entities
 
 Public Class EnvelopeModel
     Inherits BaseModel
@@ -33,10 +33,10 @@ Public Class EnvelopeModel
             .Message = pRow.ItemEx("MESSAGE", ""),
             .UserId = pRow.ItemEx("USER_ID", 0),
             .Language = pRow.ItemEx("LANGUAGE", "de-DE"),
-            .Status = ObjectEx.ToEnum(Of Constants.EnvelopeStatus)(pRow.ItemEx("STATUS", Constants.EnvelopeStatus.EnvelopeCreated.ToString())),
+            .Status = ObjectEx.ToEnum(Of EnvelopeStatus)(pRow.ItemEx("STATUS", EnvelopeStatus.EnvelopeCreated.ToString())),
             .AddedWhen = pRow.Item("ADDED_WHEN"),
             .ChangedWhen = pRow.ItemEx(Of Date)("CHANGED_WHEN", Nothing),
-            .CertificationType = ObjectEx.ToEnum(Of Constants.CertificationType)(pRow.ItemEx("CERTIFICATION_TYPE", Constants.CertificationType.AdvancedElectronicSignature.ToString())),
+            .CertificationType = ObjectEx.ToEnum(Of CertificationType)(pRow.ItemEx("CERTIFICATION_TYPE", CertificationType.AdvancedElectronicSignature.ToString())),
             .User = New User(),
             .ExpiresWhen = pRow.ItemEx(Of Date)("EXPIRES_WHEN", Nothing),
             .ExpiresWarningWhen = pRow.ItemEx(Of Date)("EXPIRES_WARNING_WHEN", Nothing),
@@ -46,8 +46,8 @@ Public Class EnvelopeModel
             .FirstReminderDays = pRow.ItemEx("FIRST_REMINDER_DAYS", 0),
             .ReminderIntervalDays = pRow.ItemEx("REMINDER_INTERVAL_DAYS", 0),
             .UseAccessCode = pRow.ItemEx("USE_ACCESS_CODE", False),
-            .FinalEmailToCreator = ObjectEx.ToEnum(Of Constants.FinalEmailType)(pRow.ItemEx("FINAL_EMAIL_TO_CREATOR", Constants.FinalEmailType.No.ToString())),
+            .FinalEmailToCreator = ObjectEx.ToEnum(Of FinalEmailType)(pRow.ItemEx("FINAL_EMAIL_TO_CREATOR", FinalEmailType.No.ToString())),
-            .FinalEmailToReceivers = ObjectEx.ToEnum(Of Constants.FinalEmailType)(pRow.ItemEx("FINAL_EMAIL_TO_RECEIVERS", Constants.FinalEmailType.No.ToString())),
+            .FinalEmailToReceivers = ObjectEx.ToEnum(Of FinalEmailType)(pRow.ItemEx("FINAL_EMAIL_TO_RECEIVERS", FinalEmailType.No.ToString())),
             .TFA_Enabled = pRow.ItemEx("TFA_Enabled", False)
         }
         Dim oDOC_RESULT = pRow.Item("DOC_RESULT")
@@ -148,7 +148,7 @@ Public Class EnvelopeModel
             Dim oSql = $"INSERT INTO [dbo].[TBSIG_ENVELOPE] (MESSAGE, ENVELOPE_UUID, STATUS, USER_ID) 
             VALUES('', 
                 '{pEnvelope.Uuid}', 
-                '{CInt([Enum].Parse(GetType(EnvelopeStatus), Constants.EnvelopeStatus.EnvelopeCreated))}', 
+                '{CInt([Enum].Parse(GetType(EnvelopeStatus), EnvelopeStatus.EnvelopeCreated))}', 
                 '{pEnvelope.UserId}')"
             Dim oCommand As New SqlCommand(oSql)
             'oCommand.Parameters.Add("MESSAGE", SqlDbType.NVarChar).Value = String.Empty

EnvelopeGenerator.Common/Models/EnvelopeTypeModel.vb

@@ -1,5 +1,5 @@
 Imports DigitalData.Modules.Base
-Imports EnvelopeGenerator.Common.Constants
+Imports EnvelopeGenerator.Domain.Constants
 
 Public Class EnvelopeTypeModel
     Inherits BaseModel

EnvelopeGenerator.Common/Models/HistoryModel.vb

@@ -27,7 +27,7 @@ Public Class HistoryModel
     End Function
 
     Public Function HasReceiverSigned(pEnvelopeId As Integer, pReceiverId As Integer) As Boolean
-        Dim oEnvelopeSigned As Integer = Constants.EnvelopeStatus.DocumentSigned
+        Dim oEnvelopeSigned As Integer = Domain.Constants.EnvelopeStatus.DocumentSigned
         Dim oSql = $"SELECT COUNT(T.GUID) 
             FROM TBSIG_ENVELOPE_HISTORY T 
             JOIN TBSIG_RECEIVER T2 ON T.USER_REFERENCE = T2.EMAIL_ADDRESS 

EnvelopeGenerator.Common/Models/ReceiverModel.vb

@@ -2,7 +2,7 @@
 Imports System.Net.Mail
 Imports DevExpress.DataProcessing
 Imports DigitalData.Modules.Base
-Imports EnvelopeGenerator.Common.Constants
+Imports EnvelopeGenerator.Domain.Constants
 
 Public Class ReceiverModel
     Inherits BaseModel
@@ -11,7 +11,7 @@ Public Class ReceiverModel
         MyBase.New(pState)
     End Sub
 
-    Private Function ToReceiver(pRow As DataRow, pColorIndex As Integer) As EnvelopeReceiver
+    Private Function ToReceiver(pRow As DataRow, pColorIndex As Integer) As Receiver
         Dim EmailAdress As String = pRow.ItemEx("EMAIL_ADDRESS", "")
         Dim EnvelopeId As Integer = pRow.ItemEx("ENVELOPE_ID", 0)
         Dim SignedDate As DateTime = DateTime.MinValue
@@ -24,9 +24,9 @@ Public Class ReceiverModel
             End If
         End If
 
-        Return New EnvelopeReceiver() With {
+        Return New Receiver() With {
             .Id = pRow.ItemEx("GUID", 0),
-            .Email = pRow.ItemEx("EMAIL_ADDRESS", ""),
+            .EmailAddress = pRow.ItemEx("EMAIL_ADDRESS", ""),
             .Name = pRow.ItemEx("NAME", ""),
             .Sequence = pRow.ItemEx("SEQUENCE", 0),
             .Signature = pRow.ItemEx("SIGNATURE", ""),
@@ -38,15 +38,15 @@ Public Class ReceiverModel
         }
     End Function
 
-    Private Function ToReceiver(pTable As DataTable) As EnvelopeReceiver
+    Private Function ToReceiver(pTable As DataTable) As Receiver
         Return pTable?.Rows.Cast(Of DataRow).
             Select(AddressOf ToReceiver).
             Single()
     End Function
 
-    Public Function TestReceiverExists(pReceiver As EnvelopeReceiver) As Boolean
+    Public Function TestReceiverExists(pReceiver As Receiver) As Boolean
         Try
-            Dim oGuid = Database.GetScalarValue($"SELECT COALESCE(GUID, 0) FROM TBSIG_RECEIVER WHERE EMAIL_ADDRESS = '{pReceiver.Email}'")
+            Dim oGuid = Database.GetScalarValue($"SELECT COALESCE(GUID, 0) FROM TBSIG_RECEIVER WHERE EMAIL_ADDRESS = '{pReceiver.EmailAddress}'")
             pReceiver.Id = oGuid
             Return oGuid > 0
         Catch ex As Exception
@@ -55,7 +55,7 @@ Public Class ReceiverModel
         End Try
     End Function
 
-    Public Function Insert(pReceiver As EnvelopeReceiver, pTransaction As SqlTransaction) As Boolean
+    Public Function Insert(pReceiver As Receiver, pTransaction As SqlTransaction) As Boolean
         Try
             Dim oSignature As String = pReceiver.GetSignature()
             Dim oCheck = $"SELECT COUNT(GUID) FROM [dbo].[TBSIG_RECEIVER] WHERE SIGNATURE = '{oSignature}'"
@@ -66,19 +66,19 @@ Public Class ReceiverModel
                ([EMAIL_ADDRESS]
                ,[SIGNATURE])
              VALUES
-               ('{pReceiver.Email}'
+               ('{pReceiver.EmailAddress}'
                ,'{pReceiver.GetSignature()}')"
 
                 Dim oCommand = New SqlCommand(oSql)
                 Dim oResult = Database.ExecuteNonQuery(oCommand)
                 If oResult = True Then
-                    pReceiver.Id = GetReceiverIdByEmail(pReceiver.Email, pTransaction)
+                    pReceiver.Id = GetReceiverIdByEmail(pReceiver.EmailAddress, pTransaction)
                     Return True
                 Else
                     Return False
                 End If
             Else
-                Logger.Warn($"Receiver [{pReceiver.Email}] already existing! SignatureID: {oSignature} Check SQL {oCheck}")
+                Logger.Warn($"Receiver [{pReceiver.EmailAddress}] already existing! SignatureID: {oSignature} Check SQL {oCheck}")
                 Return True
             End If
         Catch ex As Exception
@@ -87,7 +87,7 @@ Public Class ReceiverModel
         End Try
     End Function
 
-    Public Function Update(pReceiver As EnvelopeReceiver, pTransaction As SqlTransaction) As Boolean
+    Public Function Update(pReceiver As Receiver, pTransaction As SqlTransaction) As Boolean
         Try
             Dim oSql As String = $"UPDATE [dbo].[TBSIG_USER_RECEIVER]
                 SET [NAME] = '{pReceiver.Name}'
@@ -118,7 +118,7 @@ Public Class ReceiverModel
         End Try
     End Function
 
-    Public Function Assign(pEnvelope As Envelope, pReceiver As EnvelopeReceiver, pTransaction As SqlTransaction) As Boolean
+    Public Function Assign(pEnvelope As Envelope, pReceiver As Receiver, pTransaction As SqlTransaction) As Boolean
         Dim oSql = $"INSERT INTO [dbo].[TBSIG_ENVELOPE_RECEIVER]
                    ([ENVELOPE_ID]
                    ,[RECEIVER_ID]
@@ -153,7 +153,7 @@ Public Class ReceiverModel
         Return Database.ExecuteNonQuery(oCommand, pTransaction)
     End Function
 
-    Public Function ListEnvelopeReceivers(pEnvelopeId As Integer) As IEnumerable(Of EnvelopeReceiver)
+    Public Function ListEnvelopeReceivers(pEnvelopeId As Integer) As IEnumerable(Of Receiver)
         Try
             Dim oSql = $"SELECT * FROM [dbo].[VWSIG_ENVELOPE_RECEIVERS] WHERE ENVELOPE_ID = {pEnvelopeId}"
             Dim oTable = Database.GetDatatable(oSql)
@@ -187,7 +187,7 @@ Public Class ReceiverModel
         End Try
     End Function
 
-    Public Function ListReceivers() As IEnumerable(Of EnvelopeReceiver)
+    Public Function ListReceivers() As IEnumerable(Of Receiver)
         Try
             Dim oSql = $"SELECT * FROM [dbo].[TBSIG_RECEIVER]"
             Dim oTable = Database.GetDatatable(oSql)
@@ -202,13 +202,13 @@ Public Class ReceiverModel
         End Try
     End Function
 
-    Public Function ListReceivers(pReceiversFromGrid As List(Of EnvelopeReceiver)) As IEnumerable(Of EnvelopeReceiver)
+    Public Function ListReceivers(pReceiversFromGrid As List(Of Receiver)) As IEnumerable(Of Receiver)
         Try
             If pReceiversFromGrid.Count = 0 Then
-                Return New List(Of EnvelopeReceiver)
+                Return New List(Of Receiver)
             End If
 
-            Dim oAddresses = pReceiversFromGrid.Select(Function(r) $"'{r.Email}'").JoinToString(",")
+            Dim oAddresses = pReceiversFromGrid.Select(Function(r) $"'{r.EmailAddress}'").JoinToString(",")
 
             Dim oSql = $"SELECT * FROM [dbo].[TBSIG_RECEIVER] WHERE EMAIL_ADDRESS IN ({oAddresses})"
             Dim oTable = Database.GetDatatable(oSql)
@@ -235,7 +235,7 @@ Public Class ReceiverModel
         End Try
     End Function
 
-    Public Function GetById(pReceiverId As Integer) As EnvelopeReceiver
+    Public Function GetById(pReceiverId As Integer) As Receiver
         'Try
         '    Dim oSql = $"SELECT * FROM [dbo].[VWSIG_ENVELOPE_RECEIVERS] WHERE RECEIVER_ID = {pReceiverId}"
         '    Dim oTable = Database.GetDatatable(oSql)

EnvelopeGenerator.Common/Models/UserModel.vb

@@ -1,5 +1,6 @@
 Imports DigitalData.Modules.Base
 Imports DigitalData.Modules.Logging
+Imports EnvelopeGenerator.Domain.Entities
 
 Public Class UserModel
     Inherits BaseModel

EnvelopeGenerator.Common/Reports/rptEnvelopeHistory.Designer.vb

@@ -320,7 +320,7 @@ Partial Public Class rptEnvelopeHistory
         Me.XrTableCell19.StylePriority.UseBorders = False
         Me.XrTableCell19.StylePriority.UseFont = False
         Me.XrTableCell19.StylePriority.UseForeColor = False
-        Me.XrTableCell19.Text = "Email"
+        Me.XrTableCell19.Text = "EmailAddress"
         Me.XrTableCell19.Weight = 0.11578820509129036R
         '
         'XrTableCell20
@@ -329,7 +329,7 @@ Partial Public Class rptEnvelopeHistory
         Me.XrTableCell20.BorderColor = System.Drawing.Color.Empty
         Me.XrTableCell20.Borders = DevExpress.XtraPrinting.BorderSide.None
         Me.XrTableCell20.Dpi = 254.0!
-        Me.XrTableCell20.ExpressionBindings.AddRange(New DevExpress.XtraReports.UI.ExpressionBinding() {New DevExpress.XtraReports.UI.ExpressionBinding("BeforePrint", "Text", "[Envelope].[User].[Email]")})
+        Me.XrTableCell20.ExpressionBindings.AddRange(New DevExpress.XtraReports.UI.ExpressionBinding() {New DevExpress.XtraReports.UI.ExpressionBinding("BeforePrint", "Text", "[Envelope].[User].[EmailAddress]")})
         Me.XrTableCell20.Font = New System.Drawing.Font("Arial", 8.25!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
         Me.XrTableCell20.ForeColor = System.Drawing.Color.Black
         Me.XrTableCell20.Multiline = True

EnvelopeGenerator.Common/Services/ActionService.vb

@@ -1,6 +1,6 @@
 Imports DevExpress.DataAccess.Native.Web
 Imports DigitalData.Modules.Base
-Imports EnvelopeGenerator.Common.Constants
+Imports EnvelopeGenerator.Domain.Constants
 Imports EnvelopeGenerator.Common.My.Resources
 Imports DigitalData.Modules.Database
 Imports System.ComponentModel
@@ -26,7 +26,7 @@ Public Class ActionService
     End Sub
 
     Public Function SendEnvelope(pEnvelope As Envelope) As Boolean
-        If HistoryService.SetEnvelopeStatus(pEnvelope, Constants.EnvelopeStatus.EnvelopeQueued, pEnvelope.User.Email) = False Then
+        If HistoryService.SetEnvelopeStatus(pEnvelope, EnvelopeStatus.EnvelopeQueued, pEnvelope.User.Email) = False Then
             Return False
         End If
 
@@ -41,13 +41,13 @@ Public Class ActionService
         Return True
     End Function
     Public Function SetStatusDocumentRotationChanged(pEnvelope As Envelope) As Boolean
-        If HistoryService.SetEnvelopeStatus(pEnvelope, Constants.EnvelopeStatus.DocumentMod_Rotation, pEnvelope.User.Email) = False Then
+        If HistoryService.SetEnvelopeStatus(pEnvelope, EnvelopeStatus.DocumentMod_Rotation, pEnvelope.User.Email) = False Then
             Return False
         End If
         Return True
     End Function
     Public Function Resend_Receiver(pEnvelope As Envelope, pmail As String) As Boolean
-        If HistoryService.SetEnvelopeStatus(pEnvelope, Constants.EnvelopeStatus.EnvelopeQueued, pEnvelope.User.Email) = False Then
+        If HistoryService.SetEnvelopeStatus(pEnvelope, EnvelopeStatus.EnvelopeQueued, pEnvelope.User.Email) = False Then
             Return False
         End If
         Dim oSendResult As Boolean = False
@@ -56,7 +56,7 @@ Public Class ActionService
         Next
         Return oSendResult
     End Function
-    Public Function ResendReceiver(pEnvelope As Envelope, pReceiver As EnvelopeReceiver) As Boolean
+    Public Function ResendReceiver(pEnvelope As Envelope, pReceiver As Receiver) As Boolean
         Return EmailService.SendDocumentReceivedEmail(pEnvelope, pReceiver)
     End Function
 
@@ -64,9 +64,9 @@ Public Class ActionService
     Public Function DeleteEnvelope(pEnvelope As Envelope, pReason As String) As Boolean
         Dim oStatus As EnvelopeStatus
         If pEnvelope.IsAlreadySent Then
-            oStatus = Constants.EnvelopeStatus.EnvelopeWithdrawn
+            oStatus = EnvelopeStatus.EnvelopeWithdrawn
         Else
-            oStatus = Constants.EnvelopeStatus.EnvelopeDeleted
+            oStatus = EnvelopeStatus.EnvelopeDeleted
         End If
         Dim oUpd = $"UPDATE TBSIG_ENVELOPE SET REJECTION_REASON = '{pReason}' WHERE GUID = {pEnvelope.Id}"
         myDatabase.ExecuteNonQuery(oUpd)
@@ -86,7 +86,7 @@ Public Class ActionService
     End Function
     Public Function API_SendWithdrawn_Mails(pEnvelope As Envelope, pReason As String) As Boolean
         Dim oSendResult As Boolean = False
-        For Each oReceiver As EnvelopeReceiver In pEnvelope.Receivers
+        For Each oReceiver As Receiver In pEnvelope.Receivers
             If EmailService.SendEnvelopeDeletedEmail(pEnvelope, oReceiver, pReason) = False Then
                 Return False
             End If
@@ -94,50 +94,50 @@ Public Class ActionService
         Return True
     End Function
 
-    Public Function OpenEnvelope(pEnvelope As Envelope, pReceiver As EnvelopeReceiver) As Boolean
+    Public Function OpenEnvelope(pEnvelope As Envelope, pReceiver As Receiver) As Boolean
-        Dim oUserReference = pReceiver.Email
+        Dim oUserReference = pReceiver.EmailAddress
 
-        If HistoryService.SetEnvelopeStatus(pEnvelope, Constants.EnvelopeStatus.DocumentOpened, oUserReference) = False Then
+        If HistoryService.SetEnvelopeStatus(pEnvelope, EnvelopeStatus.DocumentOpened, oUserReference) = False Then
             Return False
         End If
 
         Return True
     End Function
 
-    Public Function RequestAccessCode(pEnvelope As Envelope, pReceiver As EnvelopeReceiver) As Boolean
+    Public Function RequestAccessCode(pEnvelope As Envelope, pReceiver As Receiver) As Boolean
-        Dim oUserReference = pReceiver.Email
+        Dim oUserReference = pReceiver.EmailAddress
 
-        If HistoryService.SetEnvelopeStatus(pEnvelope, Constants.EnvelopeStatus.AccessCodeRequested, oUserReference) = False Then
+        If HistoryService.SetEnvelopeStatus(pEnvelope, EnvelopeStatus.AccessCodeRequested, oUserReference) = False Then
             Return False
         End If
 
         Return True
     End Function
 
-    Public Function EnterCorrectAccessCode(pEnvelope As Envelope, pReceiver As EnvelopeReceiver) As Boolean
+    Public Function EnterCorrectAccessCode(pEnvelope As Envelope, pReceiver As Receiver) As Boolean
-        Dim oUserReference = pReceiver.Email
+        Dim oUserReference = pReceiver.EmailAddress
 
-        If HistoryService.SetEnvelopeStatus(pEnvelope, Constants.EnvelopeStatus.AccessCodeCorrect, oUserReference) = False Then
+        If HistoryService.SetEnvelopeStatus(pEnvelope, EnvelopeStatus.AccessCodeCorrect, oUserReference) = False Then
             Return False
         End If
 
         Return True
     End Function
 
-    Public Function EnterIncorrectAccessCode(pEnvelope As Envelope, pReceiver As EnvelopeReceiver) As Boolean
+    Public Function EnterIncorrectAccessCode(pEnvelope As Envelope, pReceiver As Receiver) As Boolean
-        Dim oUserReference = pReceiver.Email
+        Dim oUserReference = pReceiver.EmailAddress
 
-        If HistoryService.SetEnvelopeStatus(pEnvelope, Constants.EnvelopeStatus.AccessCodeIncorrect, oUserReference) = False Then
+        If HistoryService.SetEnvelopeStatus(pEnvelope, EnvelopeStatus.AccessCodeIncorrect, oUserReference) = False Then
             Return False
         End If
 
         Return True
     End Function
 
-    Public Function SignEnvelope(pEnvelope As Envelope, pReceiver As EnvelopeReceiver) As Boolean
+    Public Function SignEnvelope(pEnvelope As Envelope, pReceiver As Receiver) As Boolean
-        Dim oUserReference = pReceiver.Email
+        Dim oUserReference = pReceiver.EmailAddress
 
-        If HistoryService.SetEnvelopeStatus(pEnvelope, Constants.EnvelopeStatus.DocumentSigned, oUserReference) = False Then
+        If HistoryService.SetEnvelopeStatus(pEnvelope, EnvelopeStatus.DocumentSigned, oUserReference) = False Then
             Return False
         End If
 
@@ -145,15 +145,15 @@ Public Class ActionService
     End Function
 
     Public Function FinalizeEnvelope(pEnvelope As Envelope) As Boolean
-        If HistoryService.SetEnvelopeStatus(pEnvelope, Constants.EnvelopeStatus.EnvelopeArchived, "System") = False Then
+        If HistoryService.SetEnvelopeStatus(pEnvelope, EnvelopeStatus.EnvelopeArchived, "System") = False Then
             Return False
         End If
 
         Return True
     End Function
 
-    Public Function CompleteEnvelope(pEnvelope As Envelope, pReceiver As EnvelopeReceiver) As Boolean ', pAttachment As String
+    Public Function CompleteEnvelope(pEnvelope As Envelope, pReceiver As Receiver) As Boolean ', pAttachment As String
-        If HistoryService.SetEnvelopeStatus(pEnvelope, Constants.EnvelopeStatus.MessageCompletionSent, pReceiver.Email) = False Then
+        If HistoryService.SetEnvelopeStatus(pEnvelope, EnvelopeStatus.MessageCompletionSent, pReceiver.EmailAddress) = False Then
             Return False
         End If
 
@@ -161,7 +161,7 @@ Public Class ActionService
     End Function
 
     Public Function CompleteEnvelope(pEnvelope As Envelope) As Boolean ', pAttachment As String
-        If HistoryService.SetEnvelopeStatus(pEnvelope, Constants.EnvelopeStatus.MessageCompletionSent, pEnvelope.User.Email) = False Then
+        If HistoryService.SetEnvelopeStatus(pEnvelope, EnvelopeStatus.MessageCompletionSent, pEnvelope.User.Email) = False Then
             Return False
         End If
 
@@ -169,7 +169,7 @@ Public Class ActionService
     End Function
 
     Public Function CreateReport(pEnvelope As Envelope) As Boolean
-        If HistoryService.SetEnvelopeStatus(pEnvelope, Constants.EnvelopeStatus.EnvelopeReportCreated, "System") = False Then
+        If HistoryService.SetEnvelopeStatus(pEnvelope, EnvelopeStatus.EnvelopeReportCreated, "System") = False Then
             Return False
         End If
 

EnvelopeGenerator.Common/Services/EmailService.vb

@@ -1,7 +1,4 @@
-
+Imports DigitalData.Modules.Logging
-Imports DigitalData.Modules.Base
-Imports DigitalData.Modules.Logging
-Imports EnvelopeGenerator.Common.My.Resources
 
 Public Class EmailService
     Inherits BaseService
@@ -16,9 +13,9 @@ Public Class EmailService
         EmailTemplate = New TemplateService(pState)
     End Sub
 
-    Public Function SendEnvelopeDeletedEmail(pEnvelope As Envelope, pReceiver As EnvelopeReceiver, pReason As String) As Boolean
+    Public Function SendEnvelopeDeletedEmail(pEnvelope As Envelope, pReceiver As Receiver, pReason As String) As Boolean
         Logger.Debug("SendEnvelopeDeletedEmail - Creating email data object...")
-        Dim oEmailData As New EmailData(pEnvelope, pReceiver, Constants.EnvelopeStatus.MessageDeletionSent) With
+        Dim oEmailData As New EmailData(pEnvelope, pReceiver, Domain.Constants.EnvelopeStatus.MessageDeletionSent) With
         {
             .SignatureLink = "",
             .ADDED_WHO_PROCESS = pEnvelope.CURRENT_WORK_APP
@@ -34,9 +31,9 @@ Public Class EmailService
         Return True
     End Function
 
-    Public Function SendDocumentReceivedEmail(pEnvelope As Envelope, pReceiver As EnvelopeReceiver) As Boolean
+    Public Function SendDocumentReceivedEmail(pEnvelope As Envelope, pReceiver As Receiver) As Boolean
         Logger.Debug("Creating email data object.")
-        Dim oEmailData As New EmailData(pEnvelope, pReceiver, Constants.EnvelopeStatus.MessageInvitationSent) With
+        Dim oEmailData As New EmailData(pEnvelope, pReceiver, Domain.Constants.EnvelopeStatus.MessageInvitationSent) With
         {
             .SignatureLink = Helpers.GetEnvelopeURL(State.DbConfig.SignatureHost, pEnvelope.Uuid, pReceiver.Signature),
             .ADDED_WHO_PROCESS = pEnvelope.CURRENT_WORK_APP
@@ -52,11 +49,11 @@ Public Class EmailService
         Return True
     End Function
 
-    Public Function GetReceiverUrl(pEnvelope As Envelope, pReceiver As EnvelopeReceiver) As String
+    Public Function GetReceiverUrl(pEnvelope As Envelope, pReceiver As Receiver) As String
         Logger.Debug($"State.DbConfig.SignatureHost: {State.DbConfig.SignatureHost}")
         Logger.Debug($" pEnvelope.Uuid: {pEnvelope.Uuid}")
         Logger.Debug($" pReceiver.Signature: {pReceiver.Signature}")
-        Dim oEmailData As New EmailData(pEnvelope, pReceiver, Constants.EnvelopeStatus.MessageInvitationSent) With
+        Dim oEmailData As New EmailData(pEnvelope, pReceiver, Domain.Constants.EnvelopeStatus.MessageInvitationSent) With
         {
           .SignatureLink = Helpers.GetEnvelopeURL(State.DbConfig.SignatureHost, pEnvelope.Uuid, pReceiver.Signature),
           .ADDED_WHO_PROCESS = pEnvelope.CURRENT_WORK_APP
@@ -65,12 +62,12 @@ Public Class EmailService
     End Function
 
 
-    Public Function SendDocumentAccessCodeReceivedEmail(pEnvelope As Envelope, pReceiver As EnvelopeReceiver) As Boolean
+    Public Function SendDocumentAccessCodeReceivedEmail(pEnvelope As Envelope, pReceiver As Receiver) As Boolean
         Logger.Debug("Creating email data object.")
         Logger.Debug($"State.DbConfig.SignatureHost: {State.DbConfig.SignatureHost}")
         Logger.Debug($" pEnvelope.Uuid: {pEnvelope.Uuid}")
         Logger.Debug($" pReceiver.Signature: {pReceiver.Signature}")
-        Dim oEmailData As New EmailData(pEnvelope, pReceiver, Constants.EnvelopeStatus.MessageAccessCodeSent) With
+        Dim oEmailData As New EmailData(pEnvelope, pReceiver, Domain.Constants.EnvelopeStatus.MessageAccessCodeSent) With
         {
             .SignatureLink = Helpers.GetEnvelopeURL(State.DbConfig.SignatureHost, pEnvelope.Uuid, pReceiver.Signature),
             .ADDED_WHO_PROCESS = pEnvelope.CURRENT_WORK_APP
@@ -86,9 +83,9 @@ Public Class EmailService
         Return True
     End Function
 
-    Public Function SendSignedEmail(pEnvelope As Envelope, pReceiver As EnvelopeReceiver) As Boolean
+    Public Function SendSignedEmail(pEnvelope As Envelope, pReceiver As Receiver) As Boolean
         Logger.Debug("Creating email data object.")
-        Dim oEmailData = New EmailData(pEnvelope, pReceiver, Constants.EnvelopeStatus.MessageConfirmationSent) With
+        Dim oEmailData = New EmailData(pEnvelope, pReceiver, Domain.Constants.EnvelopeStatus.MessageConfirmationSent) With
         {
             .SignatureLink = ""
         }
@@ -103,9 +100,9 @@ Public Class EmailService
         Return True
     End Function
 
-    Public Function SendDocumentCompletedEmailToReceiver(pEnvelope As Envelope, pReceiver As EnvelopeReceiver) As Boolean ', pAttachment As String
+    Public Function SendDocumentCompletedEmailToReceiver(pEnvelope As Envelope, pReceiver As Receiver) As Boolean ', pAttachment As String
         Logger.Debug("Creating email data object.")
-        Dim oEmailData = New EmailData(pEnvelope, pReceiver, Constants.EnvelopeStatus.MessageCompletionSent) With
+        Dim oEmailData = New EmailData(pEnvelope, pReceiver, Domain.Constants.EnvelopeStatus.MessageCompletionSent) With
         {
             .SignatureLink = "",
             .ATT1_RELATED_ID = pEnvelope.Id,
@@ -126,7 +123,7 @@ Public Class EmailService
 
     Public Function SendDocumentCompletedEmailToCreator(pEnvelope As Envelope) As Boolean ', pAttachment As String
         Logger.Debug("Creating email data object.")
-        Dim oEmailData = New EmailData(pEnvelope, Constants.EnvelopeStatus.MessageCompletionSent) With
+        Dim oEmailData = New EmailData(pEnvelope, Domain.Constants.EnvelopeStatus.MessageCompletionSent) With
         {
             .SignatureLink = "",
             .ATT1_RELATED_ID = pEnvelope.Id,

EnvelopeGenerator.Common/Services/HistoryService.vb

@@ -1,7 +1,5 @@
-
+Imports DigitalData.Modules.Logging
-Imports DigitalData.Modules.Base
+Imports EnvelopeGenerator.Domain.Constants
-Imports DigitalData.Modules.Logging
-Imports EnvelopeGenerator.Common.Constants
 
 Public Class HistoryService
     Inherits BaseService
@@ -34,4 +32,4 @@ Public Class HistoryService
         Logger.Debug("Envelope status set to [{0}] for Envelope [{1}].", pStatus.ToString, pEnvelope.Id)
         Return True
     End Function
-End Class
+End Class

EnvelopeGenerator.Common/Services/TemplateService.vb

@@ -1,5 +1,6 @@
 Imports DigitalData.Modules.Base
 Imports DigitalData.Modules.Logging
+Imports EnvelopeGenerator.Domain.Constants
 
 Public Class TemplateService
     Inherits BaseService
@@ -35,7 +36,7 @@ Public Class TemplateService
 
     Public Sub FillDocumentReceivedEmailBody(pEmailData As EmailData)
         InitDictionary(pEmailData)
-        Dim oTemplate = EmailHtmlTemplateModel.GetById(Constants.EmailTemplateType.DocumentReceived)
+        Dim oTemplate = EmailHtmlTemplateModel.GetById(EmailTemplateType.DocumentReceived)
 
         pEmailData.EmailBody = FillTemplate(oTemplate.Body)
         pEmailData.EmailSubject = FillTemplate(oTemplate.Subject)
@@ -43,7 +44,7 @@ Public Class TemplateService
 
     Public Sub FillEnvelopeDeletedEmailBody(pEmailData As EmailData, pReason As String)
         InitDictionary(pEmailData, pReason)
-        Dim oTemplate = EmailHtmlTemplateModel.GetById(Constants.EmailTemplateType.DocumentDeleted)
+        Dim oTemplate = EmailHtmlTemplateModel.GetById(EmailTemplateType.DocumentDeleted)
 
         pEmailData.EmailBody = FillTemplate(oTemplate.Body, pReason)
         pEmailData.EmailSubject = FillTemplate(oTemplate.Subject)
@@ -51,7 +52,7 @@ Public Class TemplateService
 
     Public Sub FillDocumentSignedEmailBody(pEmailData As EmailData)
         InitDictionary(pEmailData)
-        Dim oTemplate = EmailHtmlTemplateModel.GetById(Constants.EmailTemplateType.DocumentSigned)
+        Dim oTemplate = EmailHtmlTemplateModel.GetById(EmailTemplateType.DocumentSigned)
 
         pEmailData.EmailBody = FillTemplate(oTemplate.Body)
         pEmailData.EmailSubject = FillTemplate(oTemplate.Subject)
@@ -59,7 +60,7 @@ Public Class TemplateService
 
     Public Sub FillDocumentCompletedEmailBody(pEmailData As EmailData)
         InitDictionary(pEmailData)
-        Dim oTemplate = EmailHtmlTemplateModel.GetById(Constants.EmailTemplateType.DocumentCompleted)
+        Dim oTemplate = EmailHtmlTemplateModel.GetById(EmailTemplateType.DocumentCompleted)
 
         pEmailData.EmailBody = FillTemplate(oTemplate.Body)
         pEmailData.EmailSubject = FillTemplate(oTemplate.Subject)
@@ -67,7 +68,7 @@ Public Class TemplateService
 
     Public Sub FillDocumentAccessCodeReceivedEmailBody(pEmailData As EmailData)
         InitDictionary(pEmailData)
-        Dim oTemplate = EmailHtmlTemplateModel.GetById(Constants.EmailTemplateType.DocumentAccessCodeReceived)
+        Dim oTemplate = EmailHtmlTemplateModel.GetById(EmailTemplateType.DocumentAccessCodeReceived)
 
         pEmailData.EmailBody = FillTemplate(oTemplate.Body)
         pEmailData.EmailSubject = FillTemplate(oTemplate.Subject)

EnvelopeGenerator.Common/Strings/Email.Designer.vb

@@ -43,7 +43,7 @@ Namespace My.Resources
         Public Shared ReadOnly Property ResourceManager() As Global.System.Resources.ResourceManager
             Get
                 If Object.ReferenceEquals(resourceMan, Nothing) Then
-                    Dim temp As Global.System.Resources.ResourceManager = New Global.System.Resources.ResourceManager("EnvelopeGenerator.Common.Email", GetType(Email).Assembly)
+                    Dim temp As Global.System.Resources.ResourceManager = New Global.System.Resources.ResourceManager("EnvelopeGenerator.Common.EmailAddress", GetType(Email).Assembly)
                     resourceMan = temp
                 End If
                 Return resourceMan

EnvelopeGenerator.Common/Strings/Envelope1.Designer.vb

@@ -236,7 +236,7 @@ Namespace My.Resources
         End Property
         
         '''<summary>
-        '''  Sucht eine lokalisierte Zeichenfolge, die Die Email-Adresse [ @Mail ] konnte nicht validiert werden! ähnelt.
+        '''  Sucht eine lokalisierte Zeichenfolge, die Die EmailAddress-Adresse [ @Mail ] konnte nicht validiert werden! ähnelt.
         '''</summary>
         Public Shared ReadOnly Property Error_email_Validation() As String
             Get
@@ -300,7 +300,7 @@ Namespace My.Resources
         End Property
         
         '''<summary>
-        '''  Sucht eine lokalisierte Zeichenfolge, die Mindestens ein Empfänger hat keine Anrede oder keine Email Adresse. ähnelt.
+        '''  Sucht eine lokalisierte Zeichenfolge, die Mindestens ein Empfänger hat keine Anrede oder keine EmailAddress Adresse. ähnelt.
         '''</summary>
         Public Shared ReadOnly Property Incomplete_Receivers() As String
             Get
@@ -309,11 +309,11 @@ Namespace My.Resources
         End Property
         
         '''<summary>
-        '''  Sucht eine lokalisierte Zeichenfolge, die Empfänger {0} hat keine gültige Email Addresse. ähnelt.
+        '''  Sucht eine lokalisierte Zeichenfolge, die Empfänger {0} hat keine gültige EmailAddress Addresse. ähnelt.
         '''</summary>
         Public Shared ReadOnly Property Invalid_Email_Address() As String
             Get
-                Return ResourceManager.GetString("Invalid Email Address", resourceCulture)
+                Return ResourceManager.GetString("Invalid EmailAddress Address", resourceCulture)
             End Get
         End Property
         

EnvelopeGenerator.Domain/Constants.cs

@@ -0,0 +1,183 @@
+#if NETFRAMEWORK
+using System.Collections.Generic;
+#endif
+
+namespace EnvelopeGenerator.Domain
+{
+    public static class Constants
+    {
+        #region Status Fields
+
+        // http://wiki.dd/xwiki13/bin/view/Anwendungen/Produkt-Handbuch/Sonstiges/SignFlow/Envelope%20Status/
+        public enum EnvelopeStatus
+        {
+            Invalid = 0,
+            EnvelopeCreated = 1001,
+            EnvelopeSaved = 1002,
+            EnvelopeQueued = 1003,
+            EnvelopeSent = 1004, // Nicht verwendet
+            EnvelopePartlySigned = 1005,
+            EnvelopeCompletelySigned = 1006,
+            EnvelopeReportCreated = 1007,
+            EnvelopeArchived = 1008,
+            EnvelopeDeleted = 1009,
+            EnvelopeRejected = 10007,
+            EnvelopeWithdrawn = 10009,
+            AccessCodeRequested = 2001,
+            AccessCodeCorrect = 2002,
+            AccessCodeIncorrect = 2003,
+            DocumentOpened = 2004,
+            DocumentSigned = 2005,
+            DocumentForwarded = 2006,
+            DocumentRejected = 2007,
+            EnvelopeShared = 2008,
+            EnvelopeViewed = 2009,
+            MessageInvitationSent = 3001,        // Wird von Trigger verwendet
+            MessageAccessCodeSent = 3002,
+            MessageConfirmationSent = 3003,
+            MessageDeletionSent = 3004,
+            MessageCompletionSent = 3005,
+            DocumentMod_Rotation = 4001
+        }
+
+        public static class Status
+        {
+            public static readonly IReadOnlyList<EnvelopeStatus> NonHist = new List<EnvelopeStatus>
+        {
+            EnvelopeStatus.Invalid,
+            EnvelopeStatus.EnvelopeSaved,
+            EnvelopeStatus.EnvelopeSent,
+            EnvelopeStatus.EnvelopePartlySigned
+        };
+
+            public static readonly IReadOnlyList<EnvelopeStatus> RelatedToFormApp = new List<EnvelopeStatus>
+        {
+            EnvelopeStatus.EnvelopeCreated,
+            EnvelopeStatus.DocumentMod_Rotation
+        };
+        }
+
+        // TODO: standardize in xwiki
+        public enum ReferenceType
+        {
+            Sender = 1,
+            Receiver,
+            System,
+            Unknown
+        }
+
+        public enum ElementStatus
+        {
+            Created = 0
+        }
+
+        public enum DocumentStatus
+        {
+            Created = 0,
+            Signed = 1
+        }
+
+        public enum ReceiverStatus
+        {
+            Unsigned = 0,
+            Signed = 1
+        }
+
+        #endregion
+
+        #region Type Fields
+
+        public enum ElementType
+        {
+            Signature = 1
+        }
+
+        public enum ContractType
+        {
+            Contract = 1,
+            ReadAndSign = 2
+        }
+
+        public enum ColorType
+        {
+            ReceiverColor1 = 1,
+            ReceiverColor2 = 2,
+            ReceiverColor3 = 3,
+            ReceiverColor4 = 4,
+            ReceiverColor5 = 5,
+            ReceiverColor6 = 6,
+            ReceiverColor7 = 7,
+            ReceiverColor8 = 8,
+            ReceiverColor9 = 9,
+            ReceiverColor10 = 10
+        }
+
+        public enum CertificationType
+        {
+            AdvancedElectronicSignature = 1
+            // ElectronicSignature = 1
+            // QualifiedSignature = 2
+        }
+
+        public enum FinalEmailType
+        {
+            No = 0,
+            Yes = 1,
+            YesWithAttachment = 2
+        }
+
+        public enum PageOrientation
+        {
+            Portrait = 0,
+            Landscape = 1
+        }
+
+        public enum EmailTemplateType
+        {
+            DocumentReceived = 0,
+            DocumentSigned,
+            DocumentDeleted,
+            DocumentCompleted,
+            DocumentAccessCodeReceived,
+            DocumentShared,
+            TotpSecret,
+            DocumentRejected_ADM,
+            DocumentRejected_REC,
+            DocumentRejected_REC_2
+        }
+
+        public enum EncodeType
+        {
+            EnvelopeReceiver,
+            EnvelopeReceiverReadOnly,
+            Undefined,
+            DocumentForwarded,
+            DocumentShared
+        }
+
+        #endregion
+
+        #region Role
+
+        public static class ReceiverRole
+        {
+            public const string PreAuth = "PreAuth";
+            public const string FullyAuth = "FullyAuth";
+        }
+
+        #endregion
+
+        #region Constants
+
+        public const string DATABASE = "DATABASE";
+        public const string LOGCONFIG = "LOGCONFIG";
+        public const string GDPICTURE = "GDPICTURE";
+        public const string PDF_BURNER_PARAMS = "PDFBurnerParams";
+
+        public const string GREEN_300 = "#bbf7d0";
+        public const string RED_300 = "#fecaca";
+        public const string ORANGE_300 = "#fed7aa";
+
+        #endregion
+    }
+}

EnvelopeGenerator.Domain/Entities/Config.cs

@@ -1,32 +1,25 @@
-using DigitalData.Core.Abstractions;
+using System.ComponentModel.DataAnnotations;
-using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
-using System.Text.Json.Serialization;
 
 namespace EnvelopeGenerator.Domain.Entities
 {
     [Table("TBSIG_CONFIG", Schema = "dbo")]
-    public class Config : IUnique<int>
+    public class Config
     {
         [Column("DOCUMENT_PATH", TypeName = "nvarchar(256)")]
-        public string? DocumentPath { get; init; }
+        public string DocumentPath { get; set; }
 
         [Column("SENDING_PROFILE", TypeName = "int")]
         [Required]
-        public required int SendingProfile { get; init; }
+        public int SendingProfile { get; set; }
 
         [Column("SIGNATURE_HOST", TypeName = "nvarchar(128)")]
-        public string? SignatureHost { get; init; }
+        public string SignatureHost { get; set; }
 
         [Column("EXTERNAL_PROGRAM_NAME", TypeName = "nvarchar(30)")]
-        public string? ExternalProgramName { get; init; }
+        public string ExternalProgramName { get; set; }
 
         [Column("EXPORT_PATH", TypeName = "nvarchar(256)")]
-        public string? ExportPath { get; init; }
+        public string ExportPath { get; set; }
-
-        [Obsolete("Configuration does not have an ID; it represents a single table in the database.")]
-        [NotMapped]
-        [JsonIgnore]
-        public int Id => throw new InvalidOperationException("This configuration does not support an ID as it represents a single table in the database.");
     }
 }

EnvelopeGenerator.Domain/Entities/DocumentReceiverElement.cs

@@ -1,12 +1,14 @@
-using DigitalData.Core.Abstractions;
+using System.ComponentModel;
-using System.ComponentModel;
 using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
+#if NETFRAMEWORK
+using System;
+#endif
 
 namespace EnvelopeGenerator.Domain.Entities
 {
     [Table("TBSIG_DOCUMENT_RECEIVER_ELEMENT", Schema = "dbo")]
-    public class DocumentReceiverElement : IUnique<int>
+    public class DocumentReceiverElement
     {
         [Key]
         [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
@@ -57,7 +59,7 @@ namespace EnvelopeGenerator.Domain.Entities
         public bool Required { get; set; }
 
         [Column("TOOLTIP")]
-        public string? Tooltip { get; set; }
+        public string Tooltip { get; set; }
 
         [Required]
         [Column("READ_ONLY")]
@@ -75,13 +77,13 @@ namespace EnvelopeGenerator.Domain.Entities
         public DateTime AddedWhen { get; set; }
 
         [Column("CHANGED_WHEN", TypeName = "datetime")]
-        public DateTime? ChangedWhen { get; set; }
+        public DateTime ChangedWhen { get; set; }
 
         [ForeignKey("DocumentId")]
-        public virtual EnvelopeDocument? Document { get; set; }
+        public virtual EnvelopeDocument Document { get; set; }
 
         [ForeignKey("ReceiverId")]
-        public virtual Receiver? Receiver { get; set; }
+        public virtual Receiver Receiver { get; set; }
 
         [NotMapped]
         public double Top => Math.Round(Y, 5);

EnvelopeGenerator.Domain/Entities/DocumentStatus.cs

@@ -1,11 +1,13 @@
-using DigitalData.Core.Abstractions;
+using System.ComponentModel.DataAnnotations;
-using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
+#if NETFRAMEWORK
+using System;
+#endif
 
 namespace EnvelopeGenerator.Domain.Entities
 {
     [Table("TBSIG_DOCUMENT_STATUS", Schema = "dbo")]
-    public class DocumentStatus : IUnique<int>
+    public class DocumentStatus
     {
         [Key]
         [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
@@ -20,27 +22,28 @@ namespace EnvelopeGenerator.Domain.Entities
         [Column("RECEIVER_ID")]
         public int ReceiverId { get; set; }
 
+        // TODO: * check Form Application and remove default value
         [Required]
         [Column("STATUS")]
-        public int Status { get; set; }
+        public Constants.DocumentStatus Status { get; set; } = Constants.DocumentStatus.Created;
 
         [Column("STATUS_CHANGED_WHEN", TypeName = "datetime")]
-        public DateTime? StatusChangedWhen { get; set; }
+        public DateTime StatusChangedWhen { get; set; }
 
         [Column("VALUE", TypeName = "nvarchar(max)")]
-        public string? Value { get; set; }
+        public string Value { get; set; }
 
         [Required]
         [Column("ADDED_WHEN", TypeName = "datetime")]
         public DateTime AddedWhen { get; set; }
 
         [Column("CHANGED_WHEN", TypeName = "datetime")]
-        public DateTime? ChangedWhen { get; set; }
+        public DateTime ChangedWhen { get; set; }
 
         [ForeignKey("EnvelopeId")]
-        public virtual Envelope? Envelope { get; set; }
+        public virtual Envelope Envelope { get; set; }
 
         [ForeignKey("ReceiverId")]
-        public virtual Receiver? Receiver { get; set; }
+        public virtual Receiver Receiver { get; set; }
     }
 }

EnvelopeGenerator.Domain/Entities/EmailTemplate.cs

@@ -1,12 +1,14 @@
-using DigitalData.Core.Abstractions;
+using System.ComponentModel;
-using System.ComponentModel;
 using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
+#if NETFRAMEWORK
+using System;
+#endif
 
 namespace EnvelopeGenerator.Domain.Entities
 {
     [Table("TBSIG_EMAIL_TEMPLATE", Schema = "dbo")]
-    public class EmailTemplate : IUnique<int>
+    public class EmailTemplate
     {
         [Key]
         [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
@@ -14,13 +16,13 @@ namespace EnvelopeGenerator.Domain.Entities
         public int Id { get; set; }
 
         [Column("NAME", TypeName = "nvarchar(64)")]
-        public string? Name { get; set; }
+        public string Name { get; set; }
 
         [Column("BODY", TypeName = "nvarchar(max)")]
-        public string? Body { get; set; }
+        public string Body { get; set; }
 
         [Column("SUBJECT", TypeName = "nvarchar(512)")]
-        public string? Subject { get; set; }
+        public string Subject { get; set; }
 
         [Required]
         [Column("ADDED_WHEN", TypeName = "datetime")]
@@ -28,6 +30,6 @@ namespace EnvelopeGenerator.Domain.Entities
         public DateTime AddedWhen { get; set; }
 
         [Column("CHANGED_WHEN", TypeName = "datetime")]
-        public DateTime? ChangedWhen { get; set; }
+        public DateTime ChangedWhen { get; set; }
     }
 }

EnvelopeGenerator.Domain/Entities/Envelope.cs

@@ -1,111 +1,158 @@
-using DigitalData.Core.Abstractions;
+using System.ComponentModel.DataAnnotations;
-using EnvelopeGenerator.Common;
-using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
+#if NETFRAMEWORK
+using System;
+using System.Collections.Generic;
+using System.Linq;
+#endif
 
 namespace EnvelopeGenerator.Domain.Entities
 {
     [Table("TBSIG_ENVELOPE", Schema = "dbo")]
-    public class Envelope : IUnique<int>
+    public class Envelope
     {
+        // TODO: * Check the Form App and remove the default value
         [Key]
         [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
         [Column("GUID")]
-        public int Id { get; set; }
+        public int Id { get; set; } = 0;
 
         [Required]
         [Column("USER_ID")]
         public int UserId { get; set; }
 
+        // TODO: * Check the Form App and remove the default value
         [Required]
         [Column("STATUS")]
-        public int Status { get; set; }
+        public int Status { get; set; } = (int)Constants.EnvelopeStatus.EnvelopeCreated;
 
         [NotMapped]
-        public string StatusName  => ((Constants.EnvelopeStatus)Status).ToString();
+        public string StatusName => ((Constants.EnvelopeStatus)Status).ToString();
 
+        // TODO: The default value is set to 0. Check the Form App to remove this
         [Required]
         [Column("ENVELOPE_UUID", TypeName = "nvarchar(36)")]
-        public required string Uuid { get; init; }
+        public string Uuid { get; set; } = Guid.NewGuid().ToString();
 
+        // TODO: * Check the Form App and remove the default value
         [Column("MESSAGE", TypeName = "nvarchar(max)")]
-        public string? Message { get; set; }
+        public string Message { get; set; } = My.Resources.Envelope.Please_read_and_sign_this_document;
 
         [Column("EXPIRES_WHEN", TypeName = "datetime")]
-        public DateTime? ExpiresWhen { get; set; }
+        public DateTime ExpiresWhen { get; set; }
 
         [Column("EXPIRES_WARNING_WHEN", TypeName = "datetime")]
-        public DateTime? ExpiresWarningWhen { get; set; }
+        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; }
+        public DateTime ChangedWhen { get; set; }
 
+        // TODO: * Check the Form App and remove the default value
         [Column("TITLE", TypeName = "nvarchar(128)")]
-        public string? Title { get; set; }
+        public string Title { get; set; } = string.Empty;
 
         [Column("CONTRACT_TYPE")]
-        public int? ContractType { get; set; }
+        public int ContractType { get; set; }
 
+        // TODO: * Check the Form App and remove the default value
+        [NotMapped]
+        public string ContractTypeTranslated => My.Resources.Model.ResourceManager.GetString(ContractType.ToString());
+
+        // TODO: * Check the Form App and remove the default value
         [Column("LANGUAGE", TypeName = "nvarchar(5)")]
-        public string? Language { get; set; }
+        public string Language { get; set; } = "de-DE";
 
+        // TODO: * Check the Form App and remove the default value
         [Column("SEND_REMINDER_EMAILS")]
-        public bool? SendReminderEmails { get; set; }
+        public bool SendReminderEmails { get; set; } = false;
 
+        // TODO: * Check the Form App and remove the default value
         [Column("FIRST_REMINDER_DAYS")]
-        public int? FirstReminderDays { get; set; }
+        public int FirstReminderDays { get; set; } = 0;
 
+        // TODO: * Check the Form App and remove the default value
         [Column("REMINDER_INTERVAL_DAYS")]
-        public int? ReminderIntervalDays { get; set; }
+        public int ReminderIntervalDays { get; set; } = 0;
 
         [Column("ENVELOPE_TYPE")]
-        public int? EnvelopeTypeId { get; set; }
+        public int EnvelopeTypeId { get; set; }
 
+        // TODO: * Check the Form App and remove the default value
         [Column("CERTIFICATION_TYPE")]
-        public int? CertificationType { get; set; }
+        public int CertificationType { get; set; } = (int)Constants.CertificationType.AdvancedElectronicSignature;
 
+        // TODO: * Check the Form App and remove the default value
         [Column("USE_ACCESS_CODE")]
-        public bool? UseAccessCode { get; set; }
+        public bool UseAccessCode { get; set; } = false;
 
         [Column("FINAL_EMAIL_TO_CREATOR")]
-        public int? FinalEmailToCreator { get; set; }
+        public int FinalEmailToCreator { get; set; }
 
         [Column("FINAL_EMAIL_TO_RECEIVERS")]
-        public int? FinalEmailToReceivers { get; set; }
+        public int FinalEmailToReceivers { get; set; }
 
         [Column("EXPIRES_WHEN_DAYS")]
-        public int? ExpiresWhenDays { get; set; }
+        public int ExpiresWhenDays { get; set; }
 
         [Column("EXPIRES_WARNING_WHEN_DAYS")]
-        public int? ExpiresWarningWhenDays { get; set; }
+        public int ExpiresWarningWhenDays { get; set; }
 
+        // TODO: * Check the Form App and remove the default value
         [Column("TFA_ENABLED", TypeName = "bit")]
-        public bool TFAEnabled { get; set; }
+        public bool TFAEnabled { get; set; } = false;
 
         [Column("DOC_RESULT", TypeName = "varbinary(max)")]
-        public byte[]? DocResult { get; init; }
+        public byte[] DocResult { get; set; }
 
-        /// <summary>
+        [NotMapped]
-        /// The sender of envelope
+        public string CURRENT_WORK_APP { get; set; } = "signFLOW GUI";
-        /// </summary>
+
+        // TODO: * Check the Form App and remove the default value
         [ForeignKey("UserId")]
-        public DigitalData.UserManager.Domain.Entities.User? User { get; set; }
+        public User User { get; set; } = new User();
 
         [ForeignKey("EnvelopeTypeId")]
-        public EnvelopeType? EnvelopeType { get; set; }
+        public EnvelopeType EnvelopeType { get; set; }
 
         [NotMapped]
-        public string? EnvelopeTypeTitle => EnvelopeType?.Title;
+        public string EnvelopeTypeTitle => EnvelopeType?.Title;
 
         [NotMapped]
-        public bool IsAlreadySent => Status > (int) Constants.EnvelopeStatus.EnvelopeSaved;
+        public bool IsAlreadySent => Status > (int)Constants.EnvelopeStatus.EnvelopeSaved;
 
-        public IEnumerable<EnvelopeDocument>? Documents { get; set; }
+        [NotMapped]
+        public string StatusTranslated => My.Resources.Model.ResourceManager.GetString(Status.ToString());
 
-        public IEnumerable<EnvelopeHistory>? History { get; set; }
+        // TODO: * Check the Form App and remove the default value
+        public IEnumerable<EnvelopeDocument> Documents { get; set; } = new List<EnvelopeDocument>();
+
+        // TODO: * Check the Form App and remove the default value
+        public IEnumerable<EnvelopeHistory> History { get; set; } = new List<EnvelopeHistory>();
+
+        // TODO: * Check the Form App and remove the default value
+        public IEnumerable<Receiver> Receivers { get; set; } = new List<Receiver>();
+
+        /// <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 (!Receivers?.Any() ?? true)
+                errors.Add(My.Resources.Envelope.Missing_Receivers);
+
+            if (Receivers?.Any(r => !r.HasEmailAndName) ?? false)
+                errors.Add(My.Resources.Envelope.Incomplete_Receivers);
+
+            return errors;
+        }
     }
 }

EnvelopeGenerator.Domain/Entities/EnvelopeCertificate.cs

@@ -1,11 +1,10 @@
-using DigitalData.Core.Abstractions;
+using System.ComponentModel.DataAnnotations;
-using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
 
 namespace EnvelopeGenerator.Domain.Entities
 {
     [Table("TBSIG_ENVELOPE_CERTIFICATE", Schema = "dbo")]
-    public class EnvelopeCertificate : IUnique<int>
+    public class EnvelopeCertificate
     {
         [Key]
         [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
@@ -18,11 +17,11 @@ namespace EnvelopeGenerator.Domain.Entities
 
         [Required]
         [Column("ENVELOPE_UUID", TypeName = "nvarchar(36)")]
-        public required string EnvelopeUuid { get; set; }
+        public string EnvelopeUuid { get; set; }
 
         [Required]
         [Column("ENVELOPE_SUBJECT", TypeName = "nvarchar(512)")]
-        public required string EnvelopeSubject { get; set; }
+        public string EnvelopeSubject { get; set; }
 
         [Required]
         [Column("CREATOR_ID")]
@@ -30,11 +29,11 @@ namespace EnvelopeGenerator.Domain.Entities
 
         [Required]
         [Column("CREATOR_NAME", TypeName = "nvarchar(128)")]
-        public required string CreatorName { get; set; }
+        public string CreatorName { get; set; }
 
         [Required]
         [Column("CREATOR_EMAIL", TypeName = "nvarchar(128)")]
-        public required string CreatorEmail { get; set; }
+        public string CreatorEmail { get; set; }
 
         [Required]
         [Column("ENVELOPE_STATUS")]

EnvelopeGenerator.Domain/Entities/EnvelopeDocument.cs

@@ -1,27 +1,31 @@
-using DigitalData.Core.Abstractions;
+using System.ComponentModel.DataAnnotations;
-using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
+#if NETFRAMEWORK
+using System;
+using System.Collections.Generic;
+#endif
 
-namespace EnvelopeGenerator.Domain.Entities;
+namespace EnvelopeGenerator.Domain.Entities
-
-[Table("TBSIG_ENVELOPE_DOCUMENT", Schema = "dbo")]
-public class EnvelopeDocument : IUnique<int>
 {
-    [Key]
+    [Table("TBSIG_ENVELOPE_DOCUMENT", Schema = "dbo")]
-    [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
+    public class EnvelopeDocument
-    [Column("GUID")]
+    {
-    public int Id { get; set; }
+        [Key]
+        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
+        [Column("GUID")]
+        public int Id { get; set; }
 
-    [Required]
+        [Required]
-    [Column("ENVELOPE_ID")]
+        [Column("ENVELOPE_ID")]
-    public int EnvelopeId { get; set; }
+        public int EnvelopeId { get; set; }
 
-    [Required]
+        [Required]
-    [Column("ADDED_WHEN", TypeName = "datetime")]
+        [Column("ADDED_WHEN", TypeName = "datetime")]
-    public required DateTime AddedWhen { get; set; }
+        public DateTime AddedWhen { get; set; }
 
-    [Column("BYTE_DATA", TypeName = "varbinary(max)")]
+        [Column("BYTE_DATA", TypeName = "varbinary(max)")]
-    public byte[]? ByteData { get; init; }
+        public byte[] ByteData { get; set; }
 
-    public IEnumerable<DocumentReceiverElement>? Elements { get; set; }
+        public IEnumerable<DocumentReceiverElement> Elements { get; set; }
+    }
 }

EnvelopeGenerator.Domain/Entities/EnvelopeHistory.cs

@@ -1,12 +1,13 @@
-using DigitalData.Core.Abstractions;
+using System.ComponentModel.DataAnnotations;
-using DigitalData.UserManager.Domain.Entities;
-using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
+#if NETFRAMEWORK
+using System;
+#endif
 
 namespace EnvelopeGenerator.Domain.Entities
 {
     [Table("TBSIG_ENVELOPE_HISTORY", Schema = "dbo")]
-    public class EnvelopeHistory : IUnique<long>
+    public class EnvelopeHistory
     {
         [Key]
         [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
@@ -19,7 +20,7 @@ namespace EnvelopeGenerator.Domain.Entities
 
         [Required]
         [Column("USER_REFERENCE", TypeName = "nvarchar(128)")]
-        public required string UserReference { get; init; }
+        public string UserReference { get; set; }
 
         [Required]
         [Column("STATUS")]
@@ -31,15 +32,15 @@ namespace EnvelopeGenerator.Domain.Entities
         public DateTime AddedWhen { get; set; }
 
         [Column("ACTION_DATE", TypeName = "datetime")]
-        public DateTime? ActionDate { get; set; }
+        public DateTime ActionDate { get; set; }
 
         [Column("COMMENT", TypeName = "nvarchar(max)")]
-        public string? Comment { get; set; }
+        public string Comment { get; set; }
 
         [ForeignKey("UserReference")]
-        public virtual User? Sender { get; set; }
+        public virtual User Sender { get; set; }
 
         [ForeignKey("UserReference")]
-        public virtual Receiver? Receiver { get; set; }
+        public virtual Receiver Receiver { get; set; }
     }
 }

EnvelopeGenerator.Domain/Entities/EnvelopeReceiver.cs

@@ -6,9 +6,9 @@ namespace EnvelopeGenerator.Domain.Entities
     public class EnvelopeReceiver : EnvelopeReceiverBase
     {
         [ForeignKey("EnvelopeId")]
-        public Envelope? Envelope { get; set; }
+        public Envelope Envelope { get; set; }
 
         [ForeignKey("ReceiverId")]
-        public Receiver? Receiver { get; set; }
+        public Receiver Receiver { get; set; }
     }
 }

EnvelopeGenerator.Domain/Entities/EnvelopeReceiverBase.cs

@@ -1,11 +1,13 @@
-using DigitalData.Core.Abstractions;
+using System.ComponentModel.DataAnnotations;
-using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
+#if NETFRAMEWORK
+using System;
+#endif
 
 namespace EnvelopeGenerator.Domain.Entities
 {
     [Table("TBSIG_ENVELOPE_RECEIVER", Schema = "dbo")]
-    public class EnvelopeReceiverBase : IUnique<(int Envelope, int Receiver)>
+    public class EnvelopeReceiverBase
     {
         [Key]
         [Column("ENVELOPE_ID")]
@@ -20,34 +22,34 @@ namespace EnvelopeGenerator.Domain.Entities
         public int Sequence { get; set; }
 
         [Column("NAME", TypeName = "nvarchar(128)")]
-        public string? Name { get; set; }
+        public string Name { get; set; }
 
         [Column("JOB_TITLE", TypeName = "nvarchar(128)")]
-        public string? JobTitle { get; set; }
+        public string JobTitle { get; set; }
 
         [Column("COMPANY_NAME", TypeName = "nvarchar(128)")]
-        public string? CompanyName { get; set; }
+        public string CompanyName { get; set; }
 
         [Column("PRIVATE_MESSAGE", TypeName = "nvarchar(max)")]
-        public string? PrivateMessage { get; set; }
+        public string PrivateMessage { get; set; }
 
         [Column("ACCESS_CODE", TypeName = "nvarchar(64)")]
-        public string? AccessCode { get; set; }
+        public string AccessCode { get; set; }
 
         [Required]
         [Column("ADDED_WHEN", TypeName = "datetime")]
         public DateTime AddedWhen { get; set; }
 
         [Column("CHANGED_WHEN", TypeName = "datetime")]
-        public DateTime? ChangedWhen { get; set; }
+        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; }
+        public string PhoneNumber { get; set; }
         
         [NotMapped]
-        public (int Envelope, int Receiver) Id => (Envelope: EnvelopeId, Receiver: ReceiverId);
+        public Tuple<int, int> Id => Tuple.Create(EnvelopeId, ReceiverId);
 
         [NotMapped]
         public bool HasPhoneNumber => !string.IsNullOrWhiteSpace(PhoneNumber);

EnvelopeGenerator.Domain/Entities/EnvelopeReceiverReadOnly.cs

@@ -1,52 +1,54 @@
 using System.ComponentModel.DataAnnotations.Schema;
 using System.ComponentModel.DataAnnotations;
-using DigitalData.Core.Abstractions;
 using DigitalData.EmailProfilerDispatcher.Abstraction.Attributes;
+#if NETFRAMEWORK
+using System;
+#endif
 
 namespace EnvelopeGenerator.Domain.Entities
 {
     [Table("TBSIG_ENVELOPE_RECEIVER_READ_ONLY")]
-    public class EnvelopeReceiverReadOnly : IUnique<long>
+    public class EnvelopeReceiverReadOnly
     {
         [Key]
         [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
         [Column("GUID")]
-        public long Id { get; init; }
+        public long Id { get; set; }
 
         [Column("ENVELOPE_ID")]
         [Required]
-        public long EnvelopeId { get; init; }
+        public long EnvelopeId { get; set; }
 
         //TODO: remove NotMapped attribute when EnvelopeId data type is standardized
         [NotMapped]
-        public Envelope? Envelope { get; set; }
+        public Envelope Envelope { get; set; }
 
         [Column("RECEIVER_MAIL")]
         [Required]
         [StringLength(250)]
         [TemplatePlaceholder("NAME_RECEIVER")]
-        public required string ReceiverMail { get; init; }
+        public string ReceiverMail { get; set; }
 
         [Column("DATE_VALID")]
         [Required]
-        public DateTime DateValid { get; init; }
+        public DateTime DateValid { get; set; }
 
         [Column("ADDED_WHO")]
         [Required]
         [StringLength(100)]
-        public required string AddedWho { get; init; }
+        public string AddedWho { get; set; }
 
-        public Receiver? Receiver { get; init; }
+        public Receiver Receiver { get; set; }
 
         [Column("ADDED_WHEN")]
         [Required]
-        public DateTime AddedWhen { get; init; }
+        public DateTime AddedWhen { get; set; }
 
         [Column("CHANGED_WHO")]
         [StringLength(100)]
-        public string? ChangedWho { get; init; }
+        public string ChangedWho { get; set; }
 
         [Column("CHANGED_WHEN")]
-        public DateTime? ChangedWhen { get; init; }
+        public DateTime ChangedWhen { get; set; }
     }
 }

EnvelopeGenerator.Domain/Entities/EnvelopeType.cs

@@ -1,11 +1,13 @@
-using DigitalData.Core.Abstractions;
+using System.ComponentModel.DataAnnotations;
-using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
+#if NETFRAMEWORK
+using System;
+#endif
 
 namespace EnvelopeGenerator.Domain.Entities
 {
     [Table("TBSIG_ENVELOPE_TYPE", Schema = "dbo")]
-    public class EnvelopeType : IUnique<int>
+    public class EnvelopeType
     {
         [Key]
         [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
@@ -14,46 +16,46 @@ namespace EnvelopeGenerator.Domain.Entities
 
         [Required]
         [Column("TITLE", TypeName = "nvarchar(128)")]
-        public required string Title { get; set; }
+        public string Title { get; set; }
 
         [Column("LANGUAGE", TypeName = "nvarchar(5)")]
-        public string? Language { get; set; }
+        public string Language { get; set; }
 
         [Column("EXPIRES_DAYS")]
-        public int? ExpiresDays { get; set; }
+        public int ExpiresDays { get; set; }
 
         [Column("CERTIFICATION_TYPE")]
-        public int? CertificationType { get; set; }
+        public int CertificationType { get; set; }
 
         [Column("USE_ACCESS_CODE")]
-        public bool? UseAccessCode { get; set; }
+        public bool UseAccessCode { get; set; }
 
         [Column("FINAL_EMAIL_TO_CREATOR")]
-        public int? FinalEmailToCreator { get; set; }
+        public int FinalEmailToCreator { get; set; }
 
         [Column("FINAL_EMAIL_TO_RECEIVERS")]
-        public int? FinalEmailToReceivers { get; set; }
+        public int FinalEmailToReceivers { get; set; }
 
         [Required]
         [Column("ADDED_WHEN", TypeName = "datetime")]
         public DateTime AddedWhen { get; set; }
 
         [Column("CHANGED_WHEN", TypeName = "datetime")]
-        public DateTime? ChangedWhen { get; set; }
+        public DateTime ChangedWhen { get; set; }
 
         [Column("EXPIRES_WARNING_DAYS")]
-        public int? ExpiresWarningDays { get; set; }
+        public int ExpiresWarningDays { get; set; }
 
         [Column("SEND_REMINDER_EMAILS")]
-        public bool? SendReminderEmails { get; set; }
+        public bool SendReminderEmails { get; set; }
 
         [Column("FIRST_REMINDER_DAYS")]
-        public int? FirstReminderDays { get; set; }
+        public int FirstReminderDays { get; set; }
 
         [Column("REMINDER_INTERVAL_DAYS")]
-        public int? ReminderIntervalDays { get; set; }
+        public int ReminderIntervalDays { get; set; }
 
         [Column("CONTRACT_TYPE")]
-        public int? ContractType { get; set; }
+        public int ContractType { get; set; }
     }
 }

EnvelopeGenerator.Domain/Entities/Receiver.cs

@@ -1,34 +1,89 @@
-using DigitalData.Core.Abstractions;
+using System.ComponentModel.DataAnnotations;
-using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
+using System.Drawing;
+#if NETFRAMEWORK
+using System;
+using System.Collections.Generic;
+#endif
 
-namespace EnvelopeGenerator.Domain.Entities;
+namespace EnvelopeGenerator.Domain.Entities
-
-[Table("TBSIG_RECEIVER", Schema = "dbo")]
-public class Receiver : IUnique<int>
 {
-    [Key]
+    [Table("TBSIG_RECEIVER", Schema = "dbo")]
-    [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
+    public class Receiver
-    [Column("GUID")]
+    {
-    public int Id { get; set; }
+        [Key]
-    
+        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
-    [Required, EmailAddress]
+        [Column("GUID")]
-    [Column("EMAIL_ADDRESS", TypeName = "nvarchar(128)")]
+        public int Id { get; set; }
-    public required string EmailAddress { get; set; }
 
-    [Required]
+        [Required, EmailAddress]
-    [Column("SIGNATURE", TypeName = "nvarchar(64)")]
+        [Column("EMAIL_ADDRESS", TypeName = "nvarchar(128)")]
-    public required string Signature { get; set; }
+        public string EmailAddress { get; set; }
 
-    [Required]
+        [Required]
-    [Column("ADDED_WHEN", TypeName = "datetime")]
+        [Column("SIGNATURE", TypeName = "nvarchar(64)")]
-    public DateTime AddedWhen { get; set; }
+        public string Signature { get; set; }
 
-    [Column("TOTP_SECRET_KEY", TypeName = "nvarchar(MAX)")]
+        [Required]
-    public string? TotpSecretkey { get; set; }
+        [Column("ADDED_WHEN", TypeName = "datetime")]
+        public DateTime AddedWhen { get; set; }
 
-    [Column("TFA_REG_DEADLINE", TypeName = "datetime")]
+        [Column("TOTP_SECRET_KEY", TypeName = "nvarchar(MAX)")]
-    public DateTime? TfaRegDeadline { get; set; }
+        public string TotpSecretkey { get; set; }
 
-    public IEnumerable<EnvelopeReceiver>? EnvelopeReceivers { get; init; }
+        [Column("TFA_REG_DEADLINE", TypeName = "datetime")]
+        public DateTime TfaRegDeadline { get; set; }
+
+        public IEnumerable<EnvelopeReceiver> EnvelopeReceivers { get; set; }
+
+        [NotMapped]
+        public string Name { get; set; }
+
+        [NotMapped]
+        public string Company { get; set; } = string.Empty;
+
+        [NotMapped]
+        public string JobTitle { get; set; } = string.Empty;
+
+        [NotMapped]
+        public string PhoneNumber { get; set; } = string.Empty;
+
+        [NotMapped]
+        public string AccessCode { get; set; } = string.Empty;
+
+        [NotMapped]
+        public string PrivateMessage { get; set; } = string.Empty;
+
+        [NotMapped]
+        public int Sequence { get; set; } = 0;
+
+        [NotMapped]
+        public DateTime SignedDate { get; set; } = DateTime.MinValue;
+
+        [NotMapped]
+        public Constants.ReceiverStatus Status { get; set; }
+
+        [NotMapped]
+        public Constants.ColorType ColorType { get; set; }
+
+        [NotMapped]
+        public bool HasId => Id > 0;
+
+        [NotMapped]
+        public bool HasEmailAndName =>
+            !string.IsNullOrWhiteSpace(EmailAddress) &&
+            !string.IsNullOrWhiteSpace(Name);
+
+        [NotMapped]
+        public string SignedDateDisplayValue =>
+            SignedDate == DateTime.MinValue ? "-" : SignedDate.ToString("G");
+
+        [NotMapped]
+        public Color Color => ColorType.ToColor();
+
+        public string GetSignature()
+        {
+            return EmailAddress.ToUpperInvariant().GetChecksum();
+        }
+    }
 }