import re


class Group:
    def __init__(self, text: str):
        self.name = text

    def __repr__(self):
        return f"G({self.name})"

    def getContainedGroups(self):
        return (self,)


class CombinedGroup:
    def __init__(self, grpA: Group, grpB: Group):
        self.clsA = grpA
        self.clsB = grpB

    def __repr__(self):
        return f"{self.clsA}/{self.clsB}"

    def getContainedGroups(self):
        return (self.clsA, self.clsB)


Group_t = Group | CombinedGroup


class GroupParser:
    KIN = Group("Kin.")
    JUN = Group("Jun.")
    JUG = Group("Jug.")
    HGR = Group("Hgr.")
    MAS1 = Group("Mas. I")
    MAS2 = Group("Mas. II")
    MAS3 = Group("Mas. III")
    MAS4 = Group("Mas. IV")
    MAS5 = Group("Mas. V")

    def __init__(self):
        self.mapNames = {
            "Kin": self.KIN,
            "Kin.": self.KIN,
            "Kinder": self.KIN,
            "Jun": self.JUN,
            "Jun.": self.JUN,
            "Junioren": self.JUN,
            "Jug": self.JUG,
            "Jug.": self.JUG,
            "Jugend": self.JUG,
            "Hgr": self.HGR,
            "HGr": self.HGR,
            "Hgr.": self.HGR,
            "HGr.": self.HGR,
            "Hauptgruppe": self.HGR,
            "Mas. I": self.MAS1,
            "Mas. II": self.MAS2,
            "Mas. III": self.MAS3,
            "Mas. IV": self.MAS4,
            "Mas. V": self.MAS5,
            "Mas I": self.MAS1,
            "Mas II": self.MAS2,
            "Mas III": self.MAS3,
            "Mas IV": self.MAS4,
            "Mas V": self.MAS5,
            "Masters I": self.MAS1,
            "Masters II": self.MAS2,
            "Masters III": self.MAS3,
            "Masters IV": self.MAS4,
            "Masters V": self.MAS5,
        }

    def parseGroup(self, cls: str) -> Group_t:
        match = re.compile("^(\\w+\\.?)/(\\w+\\.?)$").match(cls)
        if match is not None:
            grpA = self.mapNames[match.group(1)]
            grpB = self.mapNames[match.group(2)]
            return CombinedGroup(grpA, grpB)
        else:
            return self.mapNames[cls]

    def isPureGroup(self, cls: str) -> bool:
        parsedGroup = self.parseGroup(cls)
        return isinstance(parsedGroup, Group)

    def getGroups(self) -> list[Group]:
        return [
            GroupParser.KIN,
            GroupParser.JUN,
            GroupParser.JUG,
            GroupParser.HGR,
            GroupParser.MAS1,
            GroupParser.MAS2,
            GroupParser.MAS3,
            GroupParser.MAS4,
            GroupParser.MAS5,
        ]

    def getGroupsAsSortedList(self, groups) -> list[Group]:
        return [x for x in self.getGroups() if x in groups]