feat(command): implement command execution for service monitoring

Add functionality to parse and execute commands for adding/removing service monitors and shutting down the watchdog. The ExecuteCommand function now handles "monitor.add", "monitor.remove" and "watchdog.shutdown" commands by interacting with the monitor package and system operations.

command/commandParse.go

@@ -1,7 +1,10 @@
 package command
 
 import (
+	"Watchdog_Linux-systemd/monitor"
+	"fmt"
 	"strings"
+	"os"
 )
 
 func getTextMiddle(text, left, right string) string {
@@ -32,10 +35,31 @@ func getCommand(content string) string {
 	return getTextMiddle(content, "[", "]")
 }
 
-func parseCommand(content, cmdType string) string {
+func getContent(content, cmdType string) string {
 	return getTextMiddle(content, "<" + cmdType + ">", "</" + cmdType + ">")
 }
 
 func ExecuteCommand(input string) error {
-	return nil
+	cmdType := getCommand(input)
+	switch cmdType {
+	case "monitor.add":
+		serviceName := getContent(input, "serviceName")
+		if len(serviceName) != 0 {
+			err := monitor.AddServiceMonitor(serviceName)
+			if err != nil {
+				return fmt.Errorf("failed to add service monitor: %v", err)
+			}
+		}
+	case "monitor.remove":
+		serviceName := getContent(input, "serviceName")
+		if len(serviceName) != 0 {
+			err := monitor.RemoveServiceMonitor(serviceName)
+			if err != nil {
+				return fmt.Errorf("failed to remove service monitor: %v", err)
+			}
+		}
+	case "watchdog.shutdown":
+		os.Exit(0)
+	}
+	return fmt.Errorf("unknown command")
 }