// Copyright (c) 2026 Storm Dragon
// Authors: Storm Dragon, Angus Kola
// SPDX-License-Identifier: GPL-3.0-or-later

package input

import "strconv"

// ValidRemoteKeyName defines the shared logical-key vocabulary. It grants no
// native capability and performs no layout/keycode lookup.
func ValidRemoteKeyName(name string) bool {
	if len(name) == 1 && (name[0] >= 'a' && name[0] <= 'z' || name[0] >= '0' && name[0] <= '9') {
		return true
	}
	if len(name) >= 2 && len(name) <= 3 && name[0] == 'F' {
		number, err := strconv.Atoi(name[1:])
		return err == nil && number >= 1 && number <= 24 && strconv.Itoa(number) == name[1:]
	}
	if len(name) == 4 && name[:3] == "KP_" && name[3] >= '0' && name[3] <= '9' {
		return true
	}
	switch name {
	case "BackSpace", "Tab", "Return", "Escape", "space", "Pause", "Print", "Menu",
		"Caps_Lock", "Num_Lock", "Scroll_Lock", "Shift_L", "Shift_R", "Control_L", "Control_R",
		"Alt_L", "Alt_R", "Super_L", "Super_R", "Page_Up", "Page_Down", "End", "Home",
		"Left", "Up", "Right", "Down", "Insert", "Delete",
		"KP_Begin", "KP_Enter", "KP_Page_Up", "KP_Page_Down", "KP_End", "KP_Home",
		"KP_Left", "KP_Up", "KP_Right", "KP_Down", "KP_Insert", "KP_Delete",
		"KP_Multiply", "KP_Add", "KP_Separator", "KP_Subtract", "KP_Decimal", "KP_Divide",
		"semicolon", "equal", "comma", "minus", "period", "slash", "grave", "bracketleft",
		"backslash", "bracketright", "apostrophe",
		// Browser, volume, media and launch keys (Windows VK 0xa6-0xb7).
		"XF86Back", "XF86Forward", "XF86Reload", "XF86Stop", "XF86Search", "XF86Favorites",
		"XF86HomePage", "XF86AudioMute", "XF86AudioLowerVolume", "XF86AudioRaiseVolume",
		"XF86AudioNext", "XF86AudioPrev", "XF86AudioStop", "XF86AudioPlay", "XF86Mail",
		"XF86AudioMedia", "XF86MyComputer", "XF86Calculator":
		return true
	}
	return false
}