//go:build windows

package supervisor

import (
	"os"
	"os/exec"
	"syscall"
)

func hideWindow(cmd *exec.Cmd) {
	cmd.SysProcAttr = &syscall.SysProcAttr{
		HideWindow:    true,
		CreationFlags: 0x08000000, // CREATE_NO_WINDOW
	}
}

func processDead(pid int) bool {
	p, err := os.FindProcess(pid)
	if err != nil {
		return true
	}
	// On Windows, FindProcess always succeeds; OpenProcess is needed.
	// tasklist-style: try duplicate handle via Signal is unsupported.
	// Use Windows API indirectly: if Wait with timeout 0 isn't available,
	// check via tasklist is heavy — use syscall OpenProcess.
	const PROCESS_QUERY_LIMITED_INFORMATION = 0x1000
	h, err := syscall.OpenProcess(PROCESS_QUERY_LIMITED_INFORMATION, false, uint32(pid))
	if err != nil {
		return true
	}
	_ = p
	syscall.CloseHandle(h)
	return false
}