Update dependencies, added SSE Helpers, and optimized Redis client connections

lib/sse.go

@@ -1,5 +1,53 @@
 package lib
 
+import "sync"
+
+type SSEServerType struct {
+	clients map[string]map[chan string]bool
+	mu      sync.Mutex
+}
+
+var SSEServer *SSEServerType
+
+func init() {
+	SSEServer = &SSEServerType{
+		clients: make(map[string]map[chan string]bool),
+	}
+}
+
+func NewSSEServer() *SSEServerType {
+	return &SSEServerType{
+		clients: make(map[string]map[chan string]bool),
+	}
+}
+
+func (s *SSEServerType) AddClient(channel string, client chan string) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+
+	if _, ok := s.clients[channel]; !ok {
+		s.clients[channel] = make(map[chan string]bool)
+	}
+	s.clients[channel][client] = true
+}
+
+func (s *SSEServerType) RemoveClient(channel string, client chan string) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+
+	delete(s.clients[channel], client)
+	if len(s.clients[channel]) == 0 {
+		delete(s.clients, channel)
+	}
+}
+
+func (s *SSEServerType) ClientCount(channel string) int {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+
+	return len(s.clients[channel])
+}
+
 func SendSSE(channel string, message string) error {
 	// Create a channel to receive an error from the goroutine
 	errCh := make(chan error, 1)