import os, sys, importlib, glob, inspect, itertools

class LabelCombinator():

    IDENTIFIER = 'label'
    PREFIX = 'label_combinator_'

    LABEL = 'ffx'

    def __init__(self, context = None):
        self._context = context
        self._logger = context['logger']
        self._reportLogger = context['report_logger']

    def getIdentifier(self):
        return LabelCombinator.IDENTIFIER

    @staticmethod    
    def list():
        basePath = os.path.dirname(__file__)
        return [os.path.basename(p)[len(LabelCombinator.PREFIX):-3]
                for p
                in glob.glob(f"{ basePath }/{LabelCombinator.PREFIX}*.py", recursive = True)
                if p != __file__]

    @staticmethod
    def getClassReference(identifier):
        importlib.import_module(f"ffx.test.{LabelCombinator.PREFIX}{ identifier }")
        for name, obj in inspect.getmembers(sys.modules[f"ffx.test.{LabelCombinator.PREFIX}{ identifier }"]):
            #HINT: Excluding MediaCombinator as it seems to be included by import (?)
            if inspect.isclass(obj) and name != 'LabelCombinator' and name.startswith('LabelCombinator'):
                return obj

    @staticmethod
    def getAllClassReferences():
        return [LabelCombinator.getClassReference(i) for i in LabelCombinator.list()]