"""Plugin mixin classes for barcode plugin."""

class BarcodeMixin:

"""Mixin that enables barcode handling.

Custom barcode plugins should use and extend this mixin as necessary.

"""

ACTION_NAME = ""

class MixinMeta:

"""Meta options for this mixin."""

MIXIN_NAME = 'Barcode'

def __init__(self):

"""Register mixin."""

super().__init__()

self.add_mixin('barcode', 'has_barcode', __class__)

@property

def has_barcode(self):

"""Does this plugin have everything needed to process a barcode."""

return True

def scan(self, barcode_data):

"""Scan a barcode against this plugin.

This method is explicitly called from the /scan/ API endpoint,

and thus it is expected that any barcode which matches this barcode will return a result.

If this plugin finds a match against the provided barcode, it should return a dict object

with the intended result.

Default return value is None

"""

return None