Extra event for plan reset.

src/Squidex.Domain.Apps.Entities/Apps/AppGrain.cs

@@ -200,10 +200,12 @@ namespace Squidex.Domain.Apps.Entities.Apps
                             {
                                 if (result is PlanResetResult)
                                 {
-                                    c.PlanId = null;
+                                    ResetPlan(c);
+                                }
+                                else
+                                {
+                                    ChangePlan(c);
                                 }
-
-                                ChangePlan(c);
                             }
 
                             return result;
@@ -306,6 +308,11 @@ namespace Squidex.Domain.Apps.Entities.Apps
             RaiseEvent(SimpleMapper.Map(command, new AppPlanChanged()));
         }
 
+        public void ResetPlan(ChangePlan command)
+        {
+            RaiseEvent(SimpleMapper.Map(command, new AppPlanReset()));
+        }
+
         public void AddPattern(AddPattern command)
         {
             RaiseEvent(SimpleMapper.Map(command, new AppPatternAdded()));

src/Squidex.Domain.Apps.Entities/Apps/AppHistoryEventsCreator.cs

@@ -17,13 +17,9 @@ namespace Squidex.Domain.Apps.Entities.Apps
 {
     public class AppHistoryEventsCreator : HistoryEventsCreatorBase
     {
-        private readonly IAppPlansProvider appPlansProvider;
-
-        public AppHistoryEventsCreator(TypeNameRegistry typeNameRegistry, IAppPlansProvider appPlansProvider)
+        public AppHistoryEventsCreator(TypeNameRegistry typeNameRegistry)
             : base(typeNameRegistry)
         {
-            Guard.NotNull(appPlansProvider, nameof(appPlansProvider));
-
             AddEventMessage("AppContributorAssignedEvent",
                 "assigned {user:[Contributor]} as {[Role]}");
 
@@ -51,6 +47,9 @@ namespace Squidex.Domain.Apps.Entities.Apps
             AddEventMessage<AppPlanChanged>(
                 "changed plan to {[Plan]}");
 
+            AddEventMessage<AppPlanReset>(
+                "resetted plan");
+
             AddEventMessage<AppLanguageAdded>(
                 "added language {[Language]}");
 
@@ -80,7 +79,6 @@ namespace Squidex.Domain.Apps.Entities.Apps
 
             AddEventMessage<AppRoleUpdated>(
                 "updated role {[Name]}");
-            this.appPlansProvider = appPlansProvider;
         }
 
         protected Task<HistoryEvent> On(AppContributorRemoved @event)
@@ -209,22 +207,30 @@ namespace Squidex.Domain.Apps.Entities.Apps
                     .AddParameter("Name", @event.Name));
         }
 
+        protected Task<HistoryEvent> On(AppRoleDeleted @event)
+        {
+            const string channel = "settings.roles";
+
+            return Task.FromResult(
+                ForEvent(@event, channel)
+                    .AddParameter("Name", @event.Name));
+        }
+
         protected Task<HistoryEvent> On(AppPlanChanged @event)
         {
             const string channel = "settings.plan";
 
             return Task.FromResult(
                 ForEvent(@event, channel)
-                    .AddParameter("Plan", @event.PlanId ?? appPlansProvider.GetFreePlan()?.Id ?? "free"));
+                    .AddParameter("Plan", @event.PlanId));
         }
 
-        protected Task<HistoryEvent> On(AppRoleDeleted @event)
+        protected Task<HistoryEvent> On(AppPlanReset @event)
         {
-            const string channel = "settings.roles";
+            const string channel = "settings.plan";
 
             return Task.FromResult(
-                ForEvent(@event, channel)
-                    .AddParameter("Name", @event.Name));
+                ForEvent(@event, channel));
         }
 
         protected override Task<HistoryEvent> CreateEventCoreAsync(Envelope<IEvent> @event)

src/Squidex.Domain.Apps.Entities/Apps/State/AppState.cs

@@ -57,6 +57,11 @@ namespace Squidex.Domain.Apps.Entities.Apps.State
             Plan = AppPlan.Build(@event.Actor, @event.PlanId);
         }
 
+        protected void On(AppPlanReset @event)
+        {
+            Plan = null;
+        }
+
         protected void On(AppContributorAssigned @event)
         {
             Contributors = Contributors.Assign(@event.ContributorId, @event.Role);

src/Squidex.Domain.Apps.Events/Apps/AppPlanChanged.cs

@@ -5,11 +5,11 @@
 //  All rights reserved. Licensed under the MIT license.
 // ==========================================================================
 
-using Squidex.Infrastructure;
+using Squidex.Infrastructure.EventSourcing;
 
 namespace Squidex.Domain.Apps.Events.Apps
 {
-    [TypeName("AppPlanChanged")]
+    [EventType(nameof(AppPlanChanged))]
     public sealed class AppPlanChanged : AppEvent
     {
         public string PlanId { get; set; }

src/Squidex.Domain.Apps.Events/Apps/AppPlanReset.cs

@@ -0,0 +1,16 @@
+// ==========================================================================
+//  Squidex Headless CMS
+// ==========================================================================
+//  Copyright (c) Squidex UG (haftungsbeschränkt)
+//  All rights reserved. Licensed under the MIT license.
+// ==========================================================================
+
+using Squidex.Infrastructure.EventSourcing;
+
+namespace Squidex.Domain.Apps.Events.Apps
+{
+    [EventType(nameof(AppPlanReset))]
+    public sealed class AppPlanReset : AppEvent
+    {
+    }
+}

tests/Squidex.Domain.Apps.Entities.Tests/Apps/AppGrainTests.cs

@@ -33,7 +33,8 @@ namespace Squidex.Domain.Apps.Entities.Apps
         private readonly string clientId = "client";
         private readonly string clientNewName = "My Client";
         private readonly string roleName = "My Role";
-        private readonly string planId = "premium";
+        private readonly string planIdPaid = "premium";
+        private readonly string planIdFree = "free";
         private readonly AppGrain sut;
         private readonly Guid patternId1 = Guid.NewGuid();
         private readonly Guid patternId2 = Guid.NewGuid();
@@ -96,9 +97,9 @@ namespace Squidex.Domain.Apps.Entities.Apps
         [Fact]
         public async Task ChangePlan_should_create_events_and_update_state()
         {
-            var command = new ChangePlan { PlanId = planId };
+            var command = new ChangePlan { PlanId = planIdPaid };
 
-            A.CallTo(() => appPlansBillingManager.ChangePlanAsync(User.Identifier, AppId, AppName, planId))
+            A.CallTo(() => appPlansBillingManager.ChangePlanAsync(User.Identifier, AppId, AppName, planIdPaid))
                 .Returns(new PlanChangedResult());
 
             await ExecuteCreateAsync();
@@ -107,23 +108,27 @@ namespace Squidex.Domain.Apps.Entities.Apps
 
             Assert.True(result.Value is PlanChangedResult);
 
-            Assert.Equal(planId, sut.Snapshot.Plan.PlanId);
+            Assert.Equal(planIdPaid, sut.Snapshot.Plan.PlanId);
 
             LastEvents
                 .ShouldHaveSameEvents(
-                    CreateEvent(new AppPlanChanged { PlanId = planId })
+                    CreateEvent(new AppPlanChanged { PlanId = planIdPaid })
                 );
         }
 
         [Fact]
         public async Task ChangePlan_should_reset_plan_for_reset_plan()
         {
-            var command = new ChangePlan { PlanId = planId };
+            var command = new ChangePlan { PlanId = planIdFree };
 
-            A.CallTo(() => appPlansBillingManager.ChangePlanAsync(User.Identifier, AppId, AppName, planId))
+            A.CallTo(() => appPlansBillingManager.ChangePlanAsync(User.Identifier, AppId, AppName, planIdPaid))
+                .Returns(new PlanChangedResult());
+
+            A.CallTo(() => appPlansBillingManager.ChangePlanAsync(User.Identifier, AppId, AppName, planIdFree))
                 .Returns(new PlanResetResult());
 
             await ExecuteCreateAsync();
+            await ExecuteChangePlanAsync();
 
             var result = await sut.ExecuteAsync(CreateCommand(command));
 
@@ -133,16 +138,16 @@ namespace Squidex.Domain.Apps.Entities.Apps
 
             LastEvents
                 .ShouldHaveSameEvents(
-                    CreateEvent(new AppPlanChanged { PlanId = null })
+                    CreateEvent(new AppPlanReset())
                 );
         }
 
         [Fact]
         public async Task ChangePlan_should_not_make_update_for_redirect_result()
         {
-            var command = new ChangePlan { PlanId = planId };
+            var command = new ChangePlan { PlanId = planIdPaid };
 
-            A.CallTo(() => appPlansBillingManager.ChangePlanAsync(User.Identifier, AppId, AppName, planId))
+            A.CallTo(() => appPlansBillingManager.ChangePlanAsync(User.Identifier, AppId, AppName, planIdPaid))
                 .Returns(new RedirectToCheckoutResult(new Uri("http://squidex.io")));
 
             await ExecuteCreateAsync();
@@ -157,7 +162,7 @@ namespace Squidex.Domain.Apps.Entities.Apps
         [Fact]
         public async Task ChangePlan_should_not_call_billing_manager_for_callback()
         {
-            var command = new ChangePlan { PlanId = planId, FromCallback = true };
+            var command = new ChangePlan { PlanId = planIdPaid, FromCallback = true };
 
             await ExecuteCreateAsync();
 
@@ -165,7 +170,7 @@ namespace Squidex.Domain.Apps.Entities.Apps
 
             result.ShouldBeEquivalent(new EntitySavedResult(5));
 
-            A.CallTo(() => appPlansBillingManager.ChangePlanAsync(User.Identifier, AppId, AppName, planId))
+            A.CallTo(() => appPlansBillingManager.ChangePlanAsync(User.Identifier, AppId, AppName, planIdPaid))
                 .MustNotHaveHappened();
         }
 
@@ -511,6 +516,11 @@ namespace Squidex.Domain.Apps.Entities.Apps
             return sut.ExecuteAsync(CreateCommand(new AddLanguage { Language = language }));
         }
 
+        private Task ExecuteChangePlanAsync()
+        {
+            return sut.ExecuteAsync(CreateCommand(new ChangePlan { PlanId = planIdPaid }));
+        }
+
         private Task ExecuteArchiveAsync()
         {
             return sut.ExecuteAsync(CreateCommand(new ArchiveApp()));

tools/Migrate_01/OldEvents/AppPlanChangedOld.cs

@@ -0,0 +1,33 @@
+// ==========================================================================
+//  Squidex Headless CMS
+// ==========================================================================
+//  Copyright (c) Squidex UG (haftungsbeschraenkt)
+//  All rights reserved. Licensed under the MIT license.
+// ==========================================================================
+
+using Squidex.Domain.Apps.Events;
+using Squidex.Domain.Apps.Events.Apps;
+using Squidex.Infrastructure;
+using Squidex.Infrastructure.EventSourcing;
+using Squidex.Infrastructure.Reflection;
+
+namespace Migrate_01.OldEvents
+{
+    [TypeName("AppPlanChanged")]
+    public sealed class AppPlanChangedOld : AppEvent, IMigrated<IEvent>
+    {
+        public string PlanId { get; set; }
+
+        public IEvent Migrate()
+        {
+            if (!string.IsNullOrWhiteSpace(PlanId))
+            {
+                return SimpleMapper.Map(this, new AppPlanChanged());
+            }
+            else
+            {
+                return SimpleMapper.Map(this, new AppPlanReset());
+            }
+        }
+    }
+}