rot finished

internal/devices/command_id.go

@@ -0,0 +1,35 @@
+package devices
+
+import "sync"
+
+// CommandIDManager manages the global command ID counter for 4O3A devices
+// All 4O3A devices share the same command ID sequence
+type CommandIDManager struct {
+	mu      sync.Mutex
+	counter int
+}
+
+var globalCommandID = &CommandIDManager{
+	counter: 0,
+}
+
+// GetNextID returns the next command ID and increments the counter
+func (m *CommandIDManager) GetNextID() int {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+
+	m.counter++
+	return m.counter
+}
+
+// Reset resets the counter to 0 (useful for testing or restart)
+func (m *CommandIDManager) Reset() {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+	m.counter = 0
+}
+
+// GetGlobalCommandID returns the global command ID manager
+func GetGlobalCommandID() *CommandIDManager {
+	return globalCommandID
+}