first commit

handlers/infos.go

@@ -0,0 +1,51 @@
+package handlers
+
+import (
+	"encoding/json"
+	"net"
+	"net/http"
+	"slideshowApp/env"
+	"strings"
+)
+
+// Helper to get the local network IP address
+func getLocalIP() string {
+	if env.Host.GetValue() != "0.0.0.0" && env.Host.GetValue() != "localhost" {
+		return env.Host.GetValue()
+	}
+
+	addrs, err := net.InterfaceAddrs()
+	if err != nil {
+		return "localhost"
+	}
+	for _, address := range addrs {
+		if ipnet, ok := address.(*net.IPNet); ok && !ipnet.IP.IsLoopback() {
+			if ipnet.IP.To4() != nil {
+				if env.Env.GetValue() == "development" && !strings.Contains(ipnet.IP.String(), "192.168") {
+					continue
+				}
+				return ipnet.IP.String()
+			}
+		}
+	}
+	return "localhost"
+}
+
+func InfoHandler(w http.ResponseWriter, r *http.Request) {
+	port := env.Port.GetValue()
+	if port == "" {
+		port = "8080"
+	}
+
+	speed := env.IntervalDefault.GetValue()
+	if speed == "" {
+		speed = "10"
+	}
+
+	data := map[string]string{
+		"ip":    getLocalIP(),
+		"port":  port,
+		"speed": speed,
+	}
+	json.NewEncoder(w).Encode(data)
+}