feat: new event

cmd/new.go

@@ -16,6 +16,7 @@ func CommandInit(root *cobra.Command) {
 		CommandNewProject,
 		CommandNewModule,
 		CommandNewProvider,
+		CommandNewEvent,
 	}
 
 	for _, c := range cmds {

cmd/new_event.go

@@ -0,0 +1,107 @@
+package cmd
+
+import (
+	"fmt"
+	"io/fs"
+	"os"
+	"path/filepath"
+	"text/template"
+
+	"git.ipao.vip/rogeecn/atomctl/pkg/utils/gomod"
+	"git.ipao.vip/rogeecn/atomctl/templates"
+	"github.com/samber/lo"
+	"github.com/spf13/cobra"
+)
+
+// CommandNewProvider 注册 new_provider 命令
+func CommandNewEvent(root *cobra.Command) {
+	cmd := &cobra.Command{
+		Use:     "event",
+		Aliases: []string{"e"},
+		Short:   "创建新的 event publish & subscriber",
+		Args:    cobra.ExactArgs(1),
+		RunE:    commandNewEventE,
+	}
+
+	root.AddCommand(cmd)
+}
+
+func commandNewEventE(cmd *cobra.Command, args []string) error {
+	snakeName := lo.SnakeCase(args[0])
+	camelName := lo.PascalCase(args[0])
+
+	publisherPath := "app/events/publishers"
+	subscriberPath := "app/events/subscribers"
+
+	path, err := os.Getwd()
+	if err != nil {
+		return err
+	}
+
+	path, _ = filepath.Abs(path)
+	err = gomod.Parse(filepath.Join(path, "go.mod"))
+	if err != nil {
+		return err
+	}
+
+	if err := os.MkdirAll(publisherPath, os.ModePerm); err != nil {
+		return err
+	}
+
+	if err := os.MkdirAll(subscriberPath, os.ModePerm); err != nil {
+		return err
+	}
+
+	err = fs.WalkDir(templates.Events, "events", func(path string, d fs.DirEntry, err error) error {
+		if err != nil {
+			return err
+		}
+		if d.IsDir() {
+			return nil
+		}
+
+		relPath, err := filepath.Rel("events", path)
+		if err != nil {
+			return err
+		}
+
+		var destPath string
+		if relPath == "publisher.go.tpl" {
+			destPath = filepath.Join(publisherPath, snakeName+".go")
+		} else if relPath == "subscriber.go.tpl" {
+			destPath = filepath.Join(subscriberPath, snakeName+".go")
+		}
+
+		tmpl, err := template.ParseFS(templates.Events, path)
+		if err != nil {
+			return err
+		}
+
+		destFile, err := os.Create(destPath)
+		if err != nil {
+			return err
+		}
+		defer destFile.Close()
+
+		return tmpl.Execute(destFile, map[string]string{
+			"Name":       camelName,
+			"ModuleName": gomod.GetModuleName(),
+		})
+	})
+
+	topicStr := fmt.Sprintf("const Topic%s = %q\n", camelName, snakeName)
+	// 写入到 app/events/topic.go
+	topicFile, err := os.OpenFile("app/events/topics.go", os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0o644)
+	if err != nil {
+		return err
+	}
+	defer topicFile.Close()
+
+	_, err = topicFile.WriteString(topicStr)
+	if err != nil {
+		return err
+	}
+
+	fmt.Printf("event 已创建: %s\n", snakeName)
+	return nil
+}

templates/events/publisher.go.tpl

@@ -0,0 +1,23 @@
+package publishers
+
+import (
+	"encoding/json"
+
+	"{{.ModuleName}}/app/events"
+
+	"git.ipao.vip/rogeecn/atom/contracts"
+)
+
+var _ contracts.EventPublisher = (*{{.Name}}Event)(nil)
+
+type {{.Name}}Event struct {
+	ID int64 `json:"id"`
+}
+
+func (e *{{.Name}}Event) Marshal() ([]byte, error) {
+	return json.Marshal(e)
+}
+
+func (e *{{.Name}}Event) Topic() string {
+	return events.Topic{{.Name}}
+}

templates/events/subscriber.go.tpl

@@ -0,0 +1,48 @@
+package subscribers
+
+import (
+	"encoding/json"
+
+	"{{.ModuleName}}/app/events"
+	"{{.ModuleName}}/app/events/publishers"
+
+	"git.ipao.vip/rogeecn/atom/contracts"
+	"github.com/ThreeDotsLabs/watermill/message"
+	"github.com/sirupsen/logrus"
+)
+
+var _ contracts.EventHandler = (*{{.Name}}Subscriber)(nil)
+
+// @provider(event)
+type {{.Name}}Subscriber struct {
+	log *logrus.Entry `inject:"false"`
+}
+
+func (e *{{.Name}}Subscriber) Prepare() error {
+	e.log = logrus.WithField("module", "events.subscribers.{{.Name}}Subscriber")
+	return nil
+}
+
+// PublishToTopic implements contracts.EventHandler.
+func (e *{{.Name}}Subscriber) PublishToTopic() string {
+	return events.TopicProcessed
+}
+
+// Topic implements contracts.EventHandler.
+func (e *{{.Name}}Subscriber) Topic() string {
+	return events.Topic{{.Name}}
+}
+
+// Handler implements contracts.EventHandler.
+func (e *{{.Name}}Subscriber) Handler(msg *message.Message) ([]*message.Message, error) {
+	var payload publishers.{{.Name}}Event
+	err := json.Unmarshal(msg.Payload, &payload)
+	if err != nil {
+		return nil, err
+	}
+	e.log.Infof("received event %s", msg.Payload)
+
+	// TODO: handle post deletion
+
+	return nil, nil
+}

templates/project/app/events/event_demo.go.tpl

@@ -1,52 +0,0 @@
-package events
-
-import (
-	"encoding/json"
-
-	"git.ipao.vip/rogeecn/atom/contracts"
-	"github.com/ThreeDotsLabs/watermill/message"
-	"github.com/sirupsen/logrus"
-)
-
-var (
-	_ contracts.EventHandler   = (*UserRegister)(nil)
-	_ contracts.EventPublisher = (*UserRegister)(nil)
-)
-
-// @provider(event)
-type UserRegister struct {
-	log *logrus.Entry `inject:"false" json:"-"`
-	ID  int64         `json:"id"`
-}
-
-func (e *UserRegister) Prepare() error {
-	return nil
-}
-
-// Marshal implements contracts.EventPublisher.
-func (e *UserRegister) Marshal() ([]byte, error) {
-	return json.Marshal(e)
-}
-
-// PublishToTopic implements contracts.EventHandler.
-func (e *UserRegister) PublishToTopic() string {
-	return TopicProcessed.String()
-}
-
-// Topic implements contracts.EventHandler.
-func (e *UserRegister) Topic() string {
-	return TopicUserRegister.String()
-}
-
-// Handler implements contracts.EventHandler.
-func (e *UserRegister) Handler(msg *message.Message) ([]*message.Message, error) {
-	var payload UserRegister
-	err := json.Unmarshal(msg.Payload, &payload)
-	if err != nil {
-		return nil, err
-	}
-
-	e.log.Infof("received event %+v\n", payload)
-
-	return nil, nil
-}

templates/project/app/events/topics.go.tpl

@@ -1,10 +1,5 @@
 package events
 
-// swagger:enum Topic
-// ENUM(
-//
-//	Processed = "event:processed"
-//	UserRegister = "user:register"
-//
-// )
-type Topic string
+const (
+	TopicProcessed = "event:processed"
+)

templates/templates.go

@@ -10,3 +10,6 @@ var Module embed.FS
 
 //go:embed provider
 var Provider embed.FS
+
+//go:embed events
+var Events embed.FS