commit inicial do projeto

internal/ws/events.go

@@ -0,0 +1,20 @@
+package ws
+
+import (
+	"encoding/json"
+	"fmt"
+)
+
+// Emit envia um evento para todos os clientes conectados
+func Emit(eventType string, data any) {
+	msg := map[string]any{
+		"type": eventType,
+		"data": data,
+	}
+	jsonMsg, err := json.Marshal(msg)
+	if err != nil {
+		fmt.Println("Erro ao serializar evento WebSocket:", err)
+		return
+	}
+	broadcast <- jsonMsg
+}

internal/ws/hub.go

@@ -0,0 +1,44 @@
+package ws
+
+import (
+	"log"
+	"net/http"
+
+	"github.com/gorilla/websocket"
+)
+
+var upgrader = websocket.Upgrader{
+	CheckOrigin: func(r *http.Request) bool { return true },
+}
+
+// Hub representa um cliente WebSocket
+var clients = make(map[*websocket.Conn]bool)
+var broadcast = make(chan []byte)
+
+// StartHub inicia o hub de websocket
+func StartHub() {
+	go func() {
+		for {
+			msg := <-broadcast
+			for client := range clients {
+				err := client.WriteMessage(websocket.TextMessage, msg)
+				if err != nil {
+					log.Printf("WebSocket erro: %v", err)
+					client.Close()
+					delete(clients, client)
+				}
+			}
+		}
+	}()
+}
+
+// HandleWS aceita conexões websocket
+func HandleWS(w http.ResponseWriter, r *http.Request) {
+	conn, err := upgrader.Upgrade(w, r, nil)
+	if err != nil {
+		log.Printf("Erro ao fazer upgrade para websocket: %v", err)
+		return
+	}
+	clients[conn] = true
+	log.Println("Novo cliente WebSocket conectado")
+}