feat: initial commit

domain/aggregates.go

@@ -0,0 +1,50 @@
+package domain
+
+import (
+	"fmt"
+	"strings"
+	"time"
+
+	"gitlab.com/unboundsoftware/eventsourced/eventsourced"
+)
+
+type SubGraph struct {
+	eventsourced.BaseAggregate
+	Ref       string
+	Service   string
+	Url       *string
+	WSUrl     *string
+	Sdl       string
+	CreatedBy string
+	CreatedAt time.Time
+	ChangedBy string
+	ChangedAt time.Time
+}
+
+func (s *SubGraph) Apply(event eventsourced.Event) error {
+	switch e := event.(type) {
+	case *SubGraphUpdated:
+		if s.Ref == "" {
+			s.CreatedBy = e.Initiator
+			s.CreatedAt = e.When()
+		}
+		s.ChangedBy = e.Initiator
+		s.ChangedAt = e.When()
+		s.Ref = e.Ref
+		s.Service = e.Service
+		if e.Url != nil {
+			url := strings.TrimSpace(*e.Url)
+			s.Url = &url
+		}
+		if e.WSUrl != nil {
+			url := strings.TrimSpace(*e.WSUrl)
+			s.WSUrl = &url
+		}
+		s.Sdl = e.Sdl
+	default:
+		return fmt.Errorf("unexpected event type: %+v", event)
+	}
+	return nil
+}
+
+var _ eventsourced.Aggregate = &SubGraph{}

domain/commands.go

@@ -0,0 +1,52 @@
+package domain
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"gitlab.com/unboundsoftware/eventsourced/eventsourced"
+)
+
+type UpdateSubGraph struct {
+	Ref       string
+	Service   string
+	Url       *string
+	WSUrl     *string
+	Sdl       string
+	Initiator string
+}
+
+func (u UpdateSubGraph) Validate(_ context.Context, aggregate eventsourced.Aggregate) error {
+	switch a := aggregate.(type) {
+	case *SubGraph:
+		if strings.TrimSpace(u.Ref) == "" {
+			return fmt.Errorf("ref is missing")
+		}
+		if strings.TrimSpace(u.Service) == "" {
+			return fmt.Errorf("service is missing")
+		}
+		if strings.TrimSpace(u.Sdl) == "" {
+			return fmt.Errorf("SDL is missing")
+		}
+		if (u.Url == nil || strings.TrimSpace(*u.Url) == "") && a.Url == nil {
+			return fmt.Errorf("url is missing")
+		}
+	default:
+		return fmt.Errorf("aggregate is not a SubGraph")
+	}
+	return nil
+}
+
+func (u UpdateSubGraph) Event(context.Context) eventsourced.Event {
+	return &SubGraphUpdated{
+		Ref:       u.Ref,
+		Service:   u.Service,
+		Url:       u.Url,
+		WSUrl:     u.WSUrl,
+		Sdl:       u.Sdl,
+		Initiator: u.Initiator,
+	}
+}
+
+var _ eventsourced.Command = UpdateSubGraph{}

domain/events.go

@@ -0,0 +1,14 @@
+package domain
+
+import "gitlab.com/unboundsoftware/eventsourced/eventsourced"
+
+type SubGraphUpdated struct {
+	eventsourced.EventAggregateId
+	eventsourced.EventTime
+	Ref       string
+	Service   string
+	Url       *string
+	WSUrl     *string
+	Sdl       string
+	Initiator string
+}