feat: Hub接收RESTful API的消息

cmd/server/main.go

@@ -10,16 +10,20 @@ import (
 	"time"
 
 	"git.jinshen.cn/remilia/push-server/interval/api"
+	"git.jinshen.cn/remilia/push-server/interval/hub"
 	"git.jinshen.cn/remilia/push-server/interval/server"
 )
 
 func main() {
-	_, serverCancel := context.WithCancel(context.Background())
+	serverCtx, serverCancel := context.WithCancel(context.Background())
 	defer func() {
 		serverCancel()
 	}()
 
-	httpServer := server.NewHTTPServer(":8080", api.NewRouter())
+	h := hub.NewHub()
+	go h.Run(serverCtx)
+
+	httpServer := server.NewHTTPServer(":8080", api.NewRouter(h))
 
 	go func() {
 		log.Println("Starting HTTP server on :8080")

interval/api/dto/publish.go

@@ -0,0 +1,5 @@
+package dto
+
+type PublishRequest struct {
+	Content string `json:"content"`
+}

interval/api/handler/push.go

@@ -0,0 +1,47 @@
+package handler
+
+import (
+	"encoding/json"
+	"net/http"
+	"time"
+
+	"git.jinshen.cn/remilia/push-server/interval/api/dto"
+	"git.jinshen.cn/remilia/push-server/interval/hub"
+	"git.jinshen.cn/remilia/push-server/interval/model"
+	"github.com/go-chi/chi/v5"
+)
+
+func PushHandler(hub *hub.Hub) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		topicStr := chi.URLParam(r, "topic")
+		topic := model.Topic(topicStr)
+		if !topic.Valid() {
+			http.Error(w, "invalid topic", http.StatusBadRequest)
+			return
+		}
+
+		var req dto.PublishRequest
+		if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+			http.Error(w, "invalid request body", http.StatusBadRequest)
+			return
+		}
+		if req.Content == "" {
+			http.Error(w, "content cannot be empty", http.StatusBadRequest)
+			return
+		}
+
+		msg := model.Message{
+			Topic:     topic,
+			Content:   []byte(req.Content),
+			Timestamp: time.Now().Unix(),
+		}
+
+		if err := hub.BroadcastMessage(r.Context(), msg); err != nil {
+			http.Error(w, "request cancelled", http.StatusRequestTimeout)
+			return
+		}
+
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(http.StatusAccepted)
+	}
+}

interval/api/router.go

@@ -4,13 +4,15 @@ import (
 	"net/http"
 
 	"git.jinshen.cn/remilia/push-server/interval/api/handler"
+	"git.jinshen.cn/remilia/push-server/interval/hub"
 	"github.com/go-chi/chi/v5"
 )
 
-func NewRouter() http.Handler {
+func NewRouter(h *hub.Hub) http.Handler {
 	r := chi.NewRouter()
 
 	r.Post("/health", handler.Health)
+	r.Post("/push/{topic}", handler.PushHandler(h))
 
 	return r
 }

interval/hub/hub.go

@@ -65,11 +65,18 @@ func (h *Hub) Unsubscribe(sub model.Subscription) {
 	h.unsubscribe <- sub
 }
 
-func (h *Hub) BroadcastMessage(message model.Message) {
-	h.broadcast <- message
+func (h *Hub) BroadcastMessage(ctx context.Context, msg model.Message) error {
+	select {
+	case h.broadcast <- msg:
+		return nil
+	case <-ctx.Done():
+		return ctx.Err()
+	}
+
 }
 
 func (h *Hub) Run(ctx context.Context) {
+	log.Println("Hub is running")
 	for {
 		select {
 		case c := <-h.register:
@@ -155,6 +162,7 @@ func (h *Hub) onBroadcast(msg model.Message) {
 		log.Printf("Broadcast failed: invalid topic")
 		return
 	}
+	log.Printf("Receiving message for topic %s: %s", msg.Topic, string(msg.Content))
 	for _, c := range h.clientsByTopic[msg.Topic] {
 		select {
 		case c.SendChan <- msg.Content:

interval/model/message.go

@@ -3,4 +3,5 @@ package model
 type Message struct {
 	Topic     Topic
 	Content   []byte
+	Timestamp int64
 }