Added on wire event format

pkg/events/events.go

@@ -1,8 +1,63 @@
 package events
 
+import (
+	"reflect"
+	"time"
+)
+
 // Events can be passed to external systems via for example AMPQ
 // Treat these events as basically DTOs so changes has to be backward compatible
 
-type AccountCreated struct {
-	Name string `json:"name"`
+type Priority string
+
+const (
+	PRIO_DEBUG Priority = "DEBUG"
+	PRIO_INFO  Priority = "INFO"
+	PRIO_ERROR Priority = "ERROR"
+)
+
+type Event struct {
+	Timestamp time.Time `json:"timestamp"`
+}
+
+type OnTheWireEvent struct {
+	EventType string      `json:"event_type"`
+	Priority  Priority    `json:"priority"`
+	Timestamp time.Time   `json:"timestamp"`
+	Payload   interface{} `json:"payload"`
+}
+
+type EventBase interface {
+	ToOnWriteEvent() *OnTheWireEvent
+}
+
+func ToOnWriteEvent(event interface{}) (*OnTheWireEvent, error) {
+	eventType := reflect.TypeOf(event)
+
+	wireEvent := OnTheWireEvent{
+		Priority:  PRIO_INFO,
+		EventType: eventType.Name(),
+		Payload:   event,
+	}
+
+	baseField := reflect.ValueOf(event).FieldByName("Timestamp")
+	if baseField.IsValid() {
+		wireEvent.Timestamp = baseField.Interface().(time.Time)
+	} else {
+		wireEvent.Timestamp = time.Now()
+	}
+
+	return &wireEvent, nil
+}
+
+type AccountCreated struct {
+	Timestamp time.Time `json:"timestamp"`
+	Id        int64     `json:"id"`
+	Name      string    `json:"name"`
+}
+
+type AccountUpdated struct {
+	Timestamp time.Time `json:"timestamp"`
+	Id        int64     `json:"id"`
+	Name      string    `json:"name"`
 }