Update events structure & factories

Trumpee.MassTransit.Messages/Event.cs

@@ -2,11 +2,45 @@
 
 public class Event<TBody>
 {
+    private Event()
+    {
+    }
+
     public TBody? Payload { get; set; }
 
+    public required string StreamId { get; set; }
     public required string Id { get; set; }
     public required string Action { get; set; }
+    public required string Version { get; set; }
     public required string Source { get; set; }
     public DateTimeOffset Timestamp { get; set; }
     public Dictionary<string, string>? Metadata { get; set; }
+
+    internal static Event<T> Create<T>(
+        string streamId, string action, string source, T? payload,
+        Dictionary<string, string>? metadata = null)
+    {
+        ArgumentException.ThrowIfNullOrEmpty(streamId);
+        ArgumentException.ThrowIfNullOrEmpty(action);
+        ArgumentException.ThrowIfNullOrEmpty(source);
+
+        var version = "v0";
+        if (metadata != null &&
+            metadata.TryGetValue("version", out var ver))
+        {
+            version = ver;
+        }
+
+        return new Event<T>
+        {
+            Version = version,
+            StreamId = streamId,
+            Id = Guid.NewGuid().ToString("N"),
+            Action = action,
+            Source = source,
+            Metadata = metadata,
+            Timestamp = DateTimeOffset.UtcNow,
+            Payload = payload
+        };
+    }
 }

Trumpee.MassTransit.Messages/Notifications/Template/Template.cs

@@ -0,0 +1,43 @@
+namespace Trumpee.MassTransit.Messages.Notifications.Template;
+
+public static class Template
+{
+    public static Event<TemplateFilledPayload> Filled(string source, string notificationId, string templateId)
+    {
+        var payload = new TemplateFilledPayload
+        {
+            NotificationId = notificationId,
+            TemplateId = templateId
+        };
+
+        return Event<TemplateFilledPayload>.Create(
+            notificationId, "TemplateFilled", source, payload);
+    }
+
+    public static Event<TemplateNotFilledPayload> NotFilled(
+        string source, string notificationId, string templateId, IEnumerable<string>? errors)
+    {
+        var payload = new TemplateNotFilledPayload
+        {
+            NotificationId = notificationId,
+            TemplateId = templateId,
+            Errors = errors?.ToList().AsReadOnly()
+        };
+
+        return Event<TemplateNotFilledPayload>.Create(
+            notificationId, "TemplateNotFilled", source, payload);
+    }
+
+    public static Event<TemplateNotFoundPayload> NotFound(
+        string source, string notificationId, string templateId, Dictionary<string, string>? props)
+    {
+        var payload = new TemplateNotFoundPayload
+        {
+            TemplateId = templateId,
+            Properties = props
+        };
+
+        return Event<TemplateNotFoundPayload>.Create(
+            notificationId, "TemplateNotFound", source, payload);
+    }
+}

Trumpee.MassTransit.Messages/Notifications/Template/TemplateNotFilledPayload.cs

@@ -4,4 +4,5 @@ public class TemplateNotFilledPayload
 {
     public required string TemplateId { get; set; }
     public required string NotificationId { get; set; }
-}
+    public IReadOnlyList<string>? Errors { get; set; }
+}

Trumpee.MassTransit.Messages/Notifications/Validation/Validation.cs

@@ -0,0 +1,29 @@
+namespace Trumpee.MassTransit.Messages.Notifications.Validation;
+
+public static class Validation
+{
+    public static Event<ValidationFailedPayload> Failed(string source, string notificationId, string error)
+    {
+        return Event<ValidationFailedPayload>.Create(
+            notificationId,
+            "ValidationFailed",
+            source,
+            new ValidationFailedPayload
+            {
+                NotificationId = notificationId,
+                ErrorMessage = error
+            });
+    }
+
+    public static Event<ValidationPassedPayload> Passed(string source, string notificationId)
+    {
+        return Event<ValidationPassedPayload>.Create(
+            notificationId,
+            "ValidationPassed",
+            source,
+            new ValidationPassedPayload
+            {
+                NotificationId = notificationId,
+            });
+    }
+}

Trumpee.MassTransit.Messages/Trumpee.MassTransit.Messages.csproj

@@ -5,6 +5,8 @@
         <ImplicitUsings>enable</ImplicitUsings>
         <Nullable>enable</Nullable>
         <Version>1.0.0.8</Version>
+        <AssemblyVersion>1.0.0.8</AssemblyVersion>
+        <FileVersion>1.0.0.8</FileVersion>
     </PropertyGroup>
 
 </Project>