//go:build windows

package windows_system

import (
	"sync"

	"golang.org/x/sys/windows"
)

type WindowsSystemCheckTools struct {
	/*
	 * Win32 API
	 */
	Kernel32 *windows.LazyDLL
	/*
	 * Windows memory information
	 */
	ProcGlobalMemoryStatusEx *windows.LazyProc
	/*
	 * Windows processor information
	 */
	SystemTimes *windows.LazyProc
	/*
	 * Windows uptime metrics
	 */
	Uptime *windows.LazyProc
}

func GetWindowsTools() WindowsSystemCheckTools {
	kernel32 := sync.OnceValue(func() *windows.LazyDLL { return windows.NewLazySystemDLL("kernel32.dll") })
	procGlobalMemoryStatusEx := sync.OnceValue(func() *windows.LazyProc { return kernel32().NewProc("GlobalMemoryStatusEx") })
	systemTimes := sync.OnceValue(func() *windows.LazyProc { return kernel32().NewProc("GetSystemTimes") })
	uptime := sync.OnceValue(func() *windows.LazyProc { return kernel32().NewProc("GetTickCount64") })

	return WindowsSystemCheckTools{
		Kernel32:                 kernel32(),
		ProcGlobalMemoryStatusEx: procGlobalMemoryStatusEx(),
		SystemTimes:              systemTimes(),
		Uptime:                   uptime(),
	}
}