//go:build !darwin && !windows

package cli

import (
	"fmt"
	"os"
)

// serviceConfigFileExists checks common service config file locations on Linux.
func serviceConfigFileExists() bool {
	// systemd unit file
	if _, err := os.Stat("/etc/systemd/system/ctrld.service"); err == nil {
		return true
	}
	// SysV init script
	if _, err := os.Stat("/etc/init.d/ctrld"); err == nil {
		return true
	}
	return false
}

// appendServiceFlag is not yet implemented on this platform.
// Linux services (systemd) store args in unit files; intercept mode
// should be set via the config file (intercept_mode) on these platforms.
func appendServiceFlag(flag string) error {
	return fmt.Errorf("appending service flags is not supported on this platform; use intercept_mode in config instead")
}

// verifyServiceRegistration is a no-op on this platform.
func verifyServiceRegistration() error {
	return nil
}

// removeServiceFlag is not yet implemented on this platform.
func removeServiceFlag(flag string) error {
	return fmt.Errorf("removing service flags is not supported on this platform; use intercept_mode in config instead")
}