Added some basic command handling for the devices

peripheral/devices/cdash_display.go

@@ -1,9 +1,15 @@
 package devices
 
-import helper "esdi/helpers"
+import (
+	"fmt"
+	"strconv"
+
+	helper "esdi/helpers"
+	"esdi/peripheral/types"
+)
 
 const (
-	newWindowCMDID = iota
+	newWindowCMDID types.CommandID = iota
 	destroyWindowCMDID
 )
 
@@ -26,10 +32,62 @@ var CDashDisplay = Device{
 	},
 }
 
-func createWindow(data []byte) {
+func createWindow(dCMD *DeviceCMD, args []string) (types.CommandID, []byte, error) {
 	// Parse the command
+	// x0, y0, width, height, title # add other decorations later on
+	// fmt.Printf("%s command called: %+v\n", dCMD.GetName(), args)
+
+	type UIWindow struct {
+		X0     uint16
+		Y0     uint16
+		Width  uint16
+		Height uint16
+		Title  [32]byte
+	}
+
+	if len(args) != 5 {
+		return 0, []byte{}, fmt.Errorf("wrong parameters, got %d, want %d. "+
+			"Command asks for: x0 y0 width height title", len(args), 5)
+	}
+
+	x0, err := strconv.ParseInt(args[0], 10, 0)
+	if err != nil {
+		return 0, []byte{}, err
+	}
+	y0, err := strconv.ParseInt(args[1], 10, 0)
+	if err != nil {
+		return 0, []byte{}, err
+	}
+	width, err := strconv.ParseInt(args[2], 10, 0)
+	if err != nil {
+		return 0, []byte{}, err
+	}
+	height, err := strconv.ParseInt(args[3], 10, 0)
+	if err != nil {
+		return 0, []byte{}, err
+	}
+
+	data := UIWindow{
+		X0:     uint16(x0),
+		Y0:     uint16(y0),
+		Width:  uint16(width),
+		Height: uint16(height),
+		Title:  helper.B32(args[4]),
+	}
+
+	// fmt.Printf("Data: %+v\n", data)
+
+	bytes, err := helper.StructToBytes(data)
+	if err != nil {
+		return 0, []byte{}, err
+	}
+
+	return dCMD.GetIdentifier(), bytes, nil
 }
 
-func destroyWindow(data []byte) {
+func destroyWindow(dCMD *DeviceCMD, args []string) (types.CommandID, []byte, error) {
 	// Parse the command
+	fmt.Printf("%s command called: %+v\n", dCMD.GetName(), args)
+
+	return dCMD.GetIdentifier(), []byte{}, nil
 }