package hhkb

// KeycodeGroup is one labelled section of the keycode palette.
type KeycodeGroup struct {
	Name  string
	Codes []byte
}

// Palette groups the assignable scancodes for the editor, roughly the way the
// official tool and QMK present them.
var Palette = []KeycodeGroup{
	{"Letters", codeRange(0x04, 0x1d)},
	{"Numbers", codeRange(0x1e, 0x27)},
	{"Symbols", []byte{0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38}},
	{"Editing", []byte{0x29, 0x2a, 0x2b, 0x28, 0x2c, 0x39}},
	{"Navigation", codeRange(0x49, 0x52)},
	{"Function", codeRange(0x3a, 0x45)},
	{"Modifiers", []byte{0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7}},
	{"Media", []byte{0xe8, 0xe9, 0xea, 0xeb}},
	{"Special", []byte{0x00, 0x01, 0x46, 0x47, 0x48}},
}

func codeRange(lo, hi byte) []byte {
	out := make([]byte, 0, int(hi-lo)+1)
	for c := lo; c <= hi; c++ {
		out = append(out, c)
	}
	return out
}