//go:build linux

package game

import (
	"os"
	"strconv"
	"strings"
)

// processes lists the running processes from /proc/<pid>/comm.
func processes() ([]Process, error) {
	entries, err := os.ReadDir("/proc")
	if err != nil {
		return nil, err
	}
	var ps []Process
	for _, e := range entries {
		pid, err := strconv.Atoi(e.Name())
		if err != nil {
			continue
		}
		comm, err := os.ReadFile("/proc/" + e.Name() + "/comm")
		if err != nil {
			continue // process vanished mid-walk
		}
		ps = append(ps, Process{PID: pid, Name: strings.TrimSpace(string(comm))})
	}
	return ps, nil
}