from .errors import VMCMDErrors

def strip_output_prop(param):
    """ A strip output prop. """
    def fget(self):
        data = self._remote.public_packet
        return not int.from_bytes(data.stripstate[self.index], 'little') & getattr(self._modes, f'_bus{param.lower()}') == 0
    def fset(self, val):
        if not isinstance(val, bool) and val not in (0, 1):
            raise VMCMDErrors(f'{param} is a boolean parameter')
        self.setter(param, 1 if val else 0)
    return property(fget, fset)

def bus_mode_prop(param):
    """ A strip output prop. """
    def fget(self):
        data = self._remote.public_packet
        if param == 'mode.normal':
            vals = [
                not int.from_bytes(data.busstate[self.index], 'little') & getattr(self._modes, f'_{param.lower()}') == 0
                for param in ['Amix', 'Bmix', 'Repeat', 'Composite', 'TVMix', 'UpMix21',
            'UpMix41', 'UpMix61', 'CenterOnly', 'LFEOnly', 'RearOnly']
            ]
            return not True in vals
        return not int.from_bytes(data.busstate[self.index], 'little') & getattr(self._modes, f'_{param.lower().split(".")[1]}') == 0
    def fset(self, val):
        if not isinstance(val, bool) and val not in (0, 1):
            raise VMCMDErrors(f'{param} is a boolean parameter')
        self.setter(param, 1 if val else 0)
    return property(fget, fset)