Added interface.

src/Squidex.Domain.Apps.Core.Model/Contents/Status2.cs

@@ -0,0 +1,46 @@
+// ==========================================================================
+//  Squidex Headless CMS
+// ==========================================================================
+//  Copyright (c) Squidex UG (haftungsbeschränkt)
+//  All rights reserved. Licensed under the MIT license.
+// ==========================================================================
+
+using Squidex.Infrastructure;
+using System;
+
+namespace Squidex.Domain.Apps.Core.Contents
+{
+    public struct Status2 : IEquatable<Status2>
+    {
+        public static readonly Status2 Published = new Status2("Published");
+
+        public string Name { get; }
+
+        public Status2(string name)
+        {
+            Guard.NotNullOrEmpty(name, nameof(name));
+
+            Name = name;
+        }
+
+        public override bool Equals(object obj)
+        {
+            return base.Equals(obj);
+        }
+
+        public bool Equals(Status2 other)
+        {
+            throw new NotImplementedException();
+        }
+
+        public override int GetHashCode()
+        {
+            return base.GetHashCode();
+        }
+
+        public override string ToString()
+        {
+            return Name;
+        }
+    }
+}

src/Squidex.Domain.Apps.Entities/Contents/IContentWorkflow.cs

@@ -0,0 +1,24 @@
+// ==========================================================================
+//  Squidex Headless CMS
+// ==========================================================================
+//  Copyright (c) Squidex UG (haftungsbeschraenkt)
+//  All rights reserved. Licensed under the MIT license.
+// ==========================================================================
+
+using System.Threading.Tasks;
+using Squidex.Domain.Apps.Core.Contents;
+using Squidex.Domain.Apps.Entities.Schemas;
+
+namespace Squidex.Domain.Apps.Entities.Contents
+{
+    public interface IContentWorkflow
+    {
+        Task<Status2> GetInitialStatusAsync(ISchemaEntity schema);
+
+        Task<bool> IsValidNextStatus(IContentEntity content, Status2 next);
+
+        Task<Status2[]> GetNextsAsync(IContentEntity content);
+
+        Task<Status2[]> GetAllAsync(ISchemaEntity schema);
+    }
+}