Added many Eventbus Structs for the Frontend Handling

goTool/uart/com.go

@@ -2,6 +2,7 @@ package uart
 
 import (
 	"context"
+	"fmt"
 	"log"
 	"time"
 
@@ -16,15 +17,26 @@ type Com struct {
 	cancel context.CancelFunc
 }
 
-func Connect(bus eventbus.EventBus, portName string, baudrate int) (*Com, error) {
+func NewCom(bus eventbus.EventBus) (*Com, error) {
+	return &Com{
+		bus:    bus,
+		port:   nil,
+		cancel: nil,
+	}, nil
+}
+
+func (c *Com) Connect(portName string, baudrate int) error {
+	if c.port != nil {
+		return fmt.Errorf("Port already connected")
+	}
 	mode := &serial.Mode{BaudRate: baudrate}
 	port, err := serial.Open(portName, mode)
 	if err != nil {
-		return nil, err
+		return err
 	}
 
 	ctx, cancel := context.WithCancel(context.Background())
-	drv := New(bus)
+	drv := New(c.bus)
 
 	go func() {
 		buff := make([]byte, 1024)
@@ -48,11 +60,9 @@ func Connect(bus eventbus.EventBus, portName string, baudrate int) (*Com, error)
 		}
 	}()
 
-	return &Com{
-		bus:    bus,
-		port:   port,
-		cancel: cancel,
-	}, nil
+	c.port = port
+	c.cancel = cancel
+	return nil
 }
 
 func (c *Com) Close() {
@@ -100,3 +110,29 @@ func (c *Com) Send(id byte, payload []byte) error {
 
 	return err
 }
+
+func (c *Com) EventbusHandler(ctx context.Context) error {
+	UActions := c.bus.Subscribe(api.TopicUartAction)
+
+	for {
+		select {
+		case <-ctx.Done():
+			return nil
+		case msgT := <-UActions:
+			switch msg := msgT.(type) {
+			case api.ActionUartConnect:
+				err := c.Connect(msg.Adapter, msg.Baudrate)
+				c.bus.Publish(api.TopicUartAction, api.ActionUartConnected{
+					Adapter:  msg.Adapter,
+					Baudrate: msg.Baudrate,
+					Error:    err,
+				})
+			case api.ActionUartDisconnect:
+				c.Close()
+				c.bus.Publish(api.TopicUartAction, api.ActionUartDisconnected{})
+			case api.ActionUartSendMessage:
+				c.Send(msg.MsgId, msg.Data)
+			}
+		}
+	}
+}