Fügen das Suffix „-base“ am Ende gängiger Modelle hinzu.

EnvelopeGenerator.Application/Model/EnvelopeReceiverQueryBase.cs

@@ -0,0 +1,58 @@
+using DigitalData.Core.Exceptions;
+using EnvelopeGenerator.Extensions;
+
+namespace EnvelopeGenerator.Application.Model;
+
+/// <summary>
+/// 
+/// </summary>
+public record EnvelopeReceiverQueryBase : EnvelopeReceiverQueryBase<EnvelopeQueryBase, ReceiverQueryBase>;
+
+/// <summary>
+/// 
+/// </summary>
+/// <typeparam name="TEnvelopeQuery"></typeparam>
+/// <typeparam name="TReceiverQuery"></typeparam>
+public record EnvelopeReceiverQueryBase<TEnvelopeQuery, TReceiverQuery>
+    where TEnvelopeQuery : EnvelopeQueryBase, new()
+    where TReceiverQuery : ReceiverQueryBase, new()
+{
+    /// <summary>
+    /// 
+    /// </summary>
+    public virtual string? Key
+    {
+        get => Envelope?.Uuid is string uuid && Receiver?.Signature is string signature
+                ? (uuid, signature).EncodeEnvelopeReceiverId()
+                : null;
+        init
+        {
+            if (value is null)
+                return;
+
+            (string? EnvelopeUuid, string? ReceiverSignature) = value.DecodeEnvelopeReceiverId();
+            if (string.IsNullOrEmpty(EnvelopeUuid) || string.IsNullOrEmpty(ReceiverSignature))
+            {
+                throw new BadRequestException("Der EnvelopeReceiverKey muss ein gültiger Base64-kodierter String sein, der die EnvelopeUuid und die ReceiverSignature enthält.");
+            }
+            Envelope = new TEnvelopeQuery()
+            {
+                Uuid = EnvelopeUuid
+            };
+            Receiver = new TReceiverQuery()
+            {
+                Signature = ReceiverSignature
+            };
+        }
+    }
+
+    /// <summary>
+    /// 
+    /// </summary>
+    public virtual TEnvelopeQuery? Envelope { get; init; }
+
+    /// <summary>
+    /// 
+    /// </summary>
+    public virtual TReceiverQuery? Receiver { get; init; }
+}