import abc
from .errors import VMCMDErrors
from dataclasses import dataclass

@dataclass
class Modes:
    """ Channel Modes """
    _mute: hex=0x00000001
    _solo: hex=0x00000002
    _mono: hex=0x00000004
    _mutec: hex=0x00000008

    _amix: hex=0x00000010
    _repeat: hex=0x00000020
    _bmix: hex=0x00000030
    _composite: hex=0x00000040
    _tvmix: hex=0x00000050
    _upmix21: hex=0x00000060
    _upmix41: hex=0x00000070
    _upmix61: hex=0x00000080
    _centeronly: hex=0x00000090
    _lfeonly: hex=0x000000A0
    _rearonly: hex=0x000000B0

    _mask: hex=0x000000F0

    _eq: hex=0x00000100
    _cross: hex=0x00000200
    _eqb: hex=0x00000800

    _busa: hex=0x00001000
    _busa1: hex=0x00001000
    _busa2: hex=0x00002000
    _busa3: hex=0x00004000
    _busa4: hex=0x00008000
    _busa5: hex=0x00080000

    _busb: hex=0x00010000
    _busb1: hex=0x00010000
    _busb2: hex=0x00020000
    _busb3: hex=0x00040000

    _pan0: hex=0x00000000
    _pancolor: hex=0x00100000
    _panmod: hex=0x00200000
    _panmask: hex=0x00F00000

    _postfx_r: hex=0x01000000
    _postfx_d: hex=0x02000000
    _postfx1: hex=0x04000000
    _postfx2: hex=0x08000000

    _sel: hex=0x10000000
    _monitor: hex=0x20000000


class Channel(abc.ABC):
    """ Base class for InputStrip and OutputBus. """
    def __init__(self, remote, index):
        self._remote = remote
        self.index = index
        self._modes = Modes()

    def setter(self, param, val):
        """ Sends a string request RT packet. """
        self._remote.set_rt(f'{self.identifier}', param, val)

    @abc.abstractmethod
    def identifier(self):
        pass

    @property
    def public_packet(self):
        """ Returns an RT data packet. """
        return self._remote.public_packet

    def apply(self, mapping):
        """ Sets all parameters of a dict for the strip. """
        for key, val in mapping.items():
            if not hasattr(self, key):
                raise VMCMDErrors(f'Invalid {self.identifier} attribute: {key}')
            setattr(self, key, val)