Add Docker, Kubernetes configurations, and CI workflows for deployment. Integrate Gin server for API, WebSocket support, and static file hosting. Refactor WebSocket gateway to use Gin router.

cmd/server/gin_server.go

@@ -0,0 +1,88 @@
+package main
+
+import (
+	"log"
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+	"github.com/nats-io/nats.go"
+)
+
+// SetupGinServer erstellt und konfiguriert den Gin-Server
+func SetupGinServer(ec *nats.EncodedConn, port string) *gin.Engine {
+	// Production mode für bessere Performance
+	gin.SetMode(gin.ReleaseMode)
+
+	r := gin.Default()
+
+	// Logging Middleware (bereits in gin.Default())
+	// Custom Logger für bessere Übersicht
+	r.Use(gin.LoggerWithFormatter(func(param gin.LogFormatterParams) string {
+		return "🌐 " + param.TimeStamp.Format("2006-01-02 15:04:05") +
+			" | " + param.Method +
+			" | " + string(rune(param.StatusCode)) +
+			" | " + param.Latency.String() +
+			" | " + param.ClientIP +
+			" | " + param.Path + "\n"
+	}))
+
+	// Recovery Middleware
+	r.Use(gin.Recovery())
+
+	// Health Check Endpoint
+	r.GET("/health", func(c *gin.Context) {
+		c.JSON(200, gin.H{
+			"status":  "ok",
+			"service": "EscapeFromTeacher",
+			"version": "1.0.0",
+		})
+	})
+
+	// Metrics Endpoint (optional für Kubernetes)
+	r.GET("/metrics", func(c *gin.Context) {
+		mu.RLock()
+		roomCount := len(rooms)
+		playerCount := len(playerSessions)
+		mu.RUnlock()
+
+		c.JSON(200, gin.H{
+			"rooms":   roomCount,
+			"players": playerCount,
+		})
+	})
+
+	// WebSocket Endpoint
+	r.GET("/ws", func(c *gin.Context) {
+		handleWebSocketGin(c.Writer, c.Request, ec)
+	})
+
+	// Static Files - Serve Web Client
+	r.Static("/assets", "./cmd/client/web/assets")
+	r.StaticFile("/", "./cmd/client/web/index.html")
+	r.StaticFile("/index.html", "./cmd/client/web/index.html")
+	r.StaticFile("/game.js", "./cmd/client/web/game.js")
+	r.StaticFile("/style.css", "./cmd/client/web/style.css")
+	r.StaticFile("/wasm_exec.js", "./cmd/client/web/wasm_exec.js")
+	r.StaticFile("/main.wasm", "./cmd/client/web/main.wasm")
+	r.StaticFile("/background.jpg", "./cmd/client/web/background.jpg")
+
+	// 404 Handler
+	r.NoRoute(func(c *gin.Context) {
+		c.JSON(404, gin.H{
+			"error": "Route not found",
+		})
+	})
+
+	log.Printf("🚀 Gin-Server konfiguriert auf Port %s", port)
+	log.Printf("📁 Statische Dateien: ./cmd/client/web/")
+	log.Printf("🌐 WebSocket Endpoint: /ws")
+	log.Printf("❤️  Health Check: /health")
+
+	return r
+}
+
+// handleWebSocketGin verwaltet WebSocket-Verbindungen über Gin
+func handleWebSocketGin(w http.ResponseWriter, r *http.Request, ec *nats.EncodedConn) {
+	// Verwende die handleWebSocket Funktion aus websocket_gateway.go
+	handleWebSocket(w, r, ec)
+}