feat: add backend_v1 migration

backend_v1/app/events/subscribers/provider.gen.go

@@ -0,0 +1,27 @@
+package subscribers
+
+import (
+	"quyun/v2/providers/event"
+
+	"go.ipao.vip/atom"
+	"go.ipao.vip/atom/container"
+	"go.ipao.vip/atom/contracts"
+	"go.ipao.vip/atom/opt"
+)
+
+func Provide(opts ...opt.Option) error {
+	if err := container.Container.Provide(func(
+		__event *event.PubSub,
+	) (contracts.Initial, error) {
+		obj := &UserRegister{}
+		if err := obj.Prepare(); err != nil {
+			return nil, err
+		}
+		__event.Handle("handler:UserRegister", obj)
+
+		return obj, nil
+	}, atom.GroupInitial); err != nil {
+		return err
+	}
+	return nil
+}

backend_v1/app/events/subscribers/user_register.go

@@ -0,0 +1,45 @@
+package subscribers
+
+import (
+	"encoding/json"
+
+	"quyun/v2/app/events"
+	"quyun/v2/app/events/publishers"
+	"quyun/v2/providers/event"
+
+	"github.com/ThreeDotsLabs/watermill/message"
+	"github.com/sirupsen/logrus"
+	"go.ipao.vip/atom/contracts"
+)
+
+var _ contracts.EventHandler = (*UserRegister)(nil)
+
+// @provider(event)
+type UserRegister struct {
+	event.DefaultChannel
+	event.DefaultPublishTo
+
+	log *logrus.Entry `inject:"false"`
+}
+
+func (e *UserRegister) Prepare() error {
+	e.log = logrus.WithField("module", "events.subscribers.user_register")
+	return nil
+}
+
+// Topic implements contracts.EventHandler.
+func (e *UserRegister) Topic() string {
+	return events.TopicUserRegister
+}
+
+// Handler implements contracts.EventHandler.
+func (e *UserRegister) Handler(msg *message.Message) ([]*message.Message, error) {
+	var payload publishers.UserRegister
+	err := json.Unmarshal(msg.Payload, &payload)
+	if err != nil {
+		return nil, err
+	}
+	e.log.Infof("received event %s", msg.Payload)
+
+	return nil, nil
+}

backend_v1/app/events/subscribers/utils.go

@@ -0,0 +1,24 @@
+package subscribers
+
+import (
+	"encoding/json"
+
+	"github.com/ThreeDotsLabs/watermill"
+	"github.com/ThreeDotsLabs/watermill/message"
+)
+
+func toMessage(event any) (*message.Message, error) {
+	b, err := json.Marshal(event)
+	if err != nil {
+		return nil, err
+	}
+	return message.NewMessage(watermill.NewUUID(), b), nil
+}
+
+func toMessageList(event any) ([]*message.Message, error) {
+	m, err := toMessage(event)
+	if err != nil {
+		return nil, err
+	}
+	return []*message.Message{m}, nil
+}