package utils

import (
	"fmt"
	"os"
	"strings"
	"runtime"
)

func getSystemdServiceName() (string, error) {
	data, err := os.ReadFile("/proc/self/cgroup")
	if err == nil {
		for _, line := range strings.Split(string(data), "\n") {
			if !strings.Contains(line, ".service") {
				continue
			}
			for _, part := range strings.Split(line, "/") {
				part = strings.TrimSpace(part)
				if strings.HasSuffix(part, ".service") {
					return part, nil
				}
			}
		}
	}
	return "", fmt.Errorf("could not determine systemd service name from cgroup")
}

func getInitSystem() string {
	if runtime.GOOS == "windows" {
		return "windows"
	}
	if runtime.GOOS == "linux" {
		if _, err := os.Stat("/run/systemd/system"); err == nil {
			return "systemd"
		}
		if _, err := os.Stat("/etc/init.d"); err == nil {
			return "init.d"
		}
	}
	return "unknown"
}