package ffenestri

type callbackData struct {
	menuID   string
	menuType menuType
}

var callbacks = map[uint16]map[uint8]callbackData{}

func addMenuCallback(key uint16, modifiers uint8, menuID string, menutype menuType) {

	if callbacks[key] == nil {
		callbacks[key] = make(map[uint8]callbackData)
	}
	callbacks[key][modifiers] = callbackData{
		menuID:   menuID,
		menuType: menutype,
	}
}

func resetCallbacks() {
	callbacks = map[uint16]map[uint8]callbackData{}
}

func getCallbackForKeyPress(key uint16, modifiers uint8) (string, menuType) {
	if callbacks[key] == nil {
		return "", ""
	}
	result := callbacks[key][modifiers]
	return result.menuID, result.menuType
}

func calculateKeycode(key string) uint16 {
	return keymap[key]
}

// TODO: Complete this list
var keymap = map[string]uint16{
	"0":         0x30,
	"1":         0x31,
	"2":         0x32,
	"3":         0x33,
	"4":         0x34,
	"5":         0x35,
	"6":         0x36,
	"7":         0x37,
	"8":         0x38,
	"9":         0x39,
	"a":         0x41,
	"b":         0x42,
	"c":         0x43,
	"d":         0x44,
	"e":         0x45,
	"f":         0x46,
	"g":         0x47,
	"h":         0x48,
	"i":         0x49,
	"j":         0x4A,
	"k":         0x4B,
	"l":         0x4C,
	"m":         0x4D,
	"n":         0x4E,
	"o":         0x4F,
	"p":         0x50,
	"q":         0x51,
	"r":         0x52,
	"s":         0x53,
	"t":         0x54,
	"u":         0x55,
	"v":         0x56,
	"w":         0x57,
	"x":         0x58,
	"y":         0x59,
	"z":         0x5A,
	"backspace": 0x08,
	"tab":       0x09,
	"return":    0x0D,
	"enter":     0x0D,
	"escape":    0x1B,
	"left":      0x25,
	"right":     0x27,
	"up":        0x26,
	"down":      0x28,
	"space":     0x20,
	"delete":    0x2E,
	"home":      0x24,
	"end":       0x23,
	"page up":   0x21,
	"page down": 0x22,
	"f1":        0x70,
	"f2":        0x71,
	"f3":        0x72,
	"f4":        0x73,
	"f5":        0x74,
	"f6":        0x75,
	"f7":        0x76,
	"f8":        0x77,
	"f9":        0x78,
	"f10":       0x79,
	"f11":       0x7A,
	"f12":       0x7B,
	"f13":       0x7C,
	"f14":       0x7D,
	"f15":       0x7E,
	"f16":       0x7F,
	"f17":       0x80,
	"f18":       0x81,
	"f19":       0x82,
	"f20":       0x83,
	"f21":       0x84,
	"f22":       0x85,
	"f23":       0x86,
	"f24":       0x87,
	// Windows doesn't have these apparently so use 0 for unsupported
	"f25": 0,
	"f26": 0,
	"f27": 0,
	"f28": 0,
	"f29": 0,
	"f30": 0,
	"f31": 0,
	"f32": 0,
	"f33": 0,
	"f34": 0,
	"f35": 0,
}