implement strip/bus gate/comp on commands

internal/xair/gate.go

@@ -1,9 +1,38 @@
 package xair
 
+import "fmt"
+
 type Gate struct {
-	client *Client
+	client      *Client
+	baseAddress string
 }
 
 func newGate(c *Client) *Gate {
-	return &Gate{client: c}
+	return &Gate{client: c, baseAddress: c.addressMap["strip"]}
+}
+
+// On retrieves the on/off status of the Gate for a specific strip (1-based indexing).
+func (g *Gate) On(index int) (bool, error) {
+	address := fmt.Sprintf(g.baseAddress, index) + "/gate/on"
+	err := g.client.SendMessage(address)
+	if err != nil {
+		return false, err
+	}
+
+	resp := <-g.client.respChan
+	val, ok := resp.Arguments[0].(int32)
+	if !ok {
+		return false, fmt.Errorf("unexpected argument type for Gate on value")
+	}
+	return val != 0, nil
+}
+
+// SetOn sets the on/off status of the Gate for a specific strip (1-based indexing).
+func (g *Gate) SetOn(index int, on bool) error {
+	address := fmt.Sprintf(g.baseAddress, index) + "/gate/on"
+	var value int32
+	if on {
+		value = 1
+	}
+	return g.client.SendMessage(address, value)
 }