from __future__ import annotations
import typing
import random


class AssembleOptions(type):
    def __new__(mcs, name, bases, attrs):
        options = attrs["options"] = {}
        name_lookup = attrs["name_lookup"] = {}
        # merge parent class options
        for base in bases:
            if hasattr(base, "options"):
                options.update(base.options)
                name_lookup.update(name_lookup)
        new_options = {name[7:].lower(): option_id for name, option_id in attrs.items() if
                       name.startswith("option_")}
        attrs["name_lookup"].update({option_id: name for name, option_id in new_options.items()})
        options.update(new_options)

        # apply aliases, without name_lookup
        options.update({name[6:].lower(): option_id for name, option_id in attrs.items() if
                        name.startswith("alias_")})

        # auto-validate schema on __init__
        if "schema" in attrs.keys():
            def validate_decorator(func):
                def validate(self, *args, **kwargs):
                    func(self, *args, **kwargs)
                    self.value = self.schema.validate(self.value)
                return validate
            attrs["__init__"] = validate_decorator(attrs["__init__"])
        return super(AssembleOptions, mcs).__new__(mcs, name, bases, attrs)


class Option(metaclass=AssembleOptions):
    value: int
    name_lookup: typing.Dict[int, str]
    default = 0

    # convert option_name_long into Name Long as displayname, otherwise name_long is the result.
    # Handled in get_option_name()
    autodisplayname = False

    def __repr__(self) -> str:
        return f"{self.__class__.__name__}({self.get_current_option_name()})"

    def __hash__(self):
        return hash(self.value)

    def get_current_option_name(self) -> str:
        return self.get_option_name(self.value)

    def get_option_name(self, value: typing.Any) -> str:
        if self.autodisplayname:
            return self.name_lookup[self.value].replace("_", " ").title()
        else:
            return self.name_lookup[self.value]

    def __int__(self) -> int:
        return self.value

    def __bool__(self) -> bool:
        return bool(self.value)

    @classmethod
    def from_any(cls, data: typing.Any):
        raise NotImplementedError


class Toggle(Option):
    option_false = 0
    option_true = 1
    default = 0

    def __init__(self, value: int):
        self.value = value

    @classmethod
    def from_text(cls, text: str) -> Toggle:
        if text.lower() in {"off", "0", "false", "none", "null", "no"}:
            return cls(0)
        else:
            return cls(1)

    @classmethod
    def from_any(cls, data: typing.Any):
        if type(data) == str:
            return cls.from_text(data)
        else:
            return cls(data)

    def __eq__(self, other):
        if isinstance(other, Toggle):
            return self.value == other.value
        else:
            return self.value == other

    def __gt__(self, other):
        if isinstance(other, Toggle):
            return self.value > other.value
        else:
            return self.value > other

    def __bool__(self):
        return bool(self.value)

    def __int__(self):
        return int(self.value)

    def get_option_name(self, value):
        return ["No", "Yes"][int(value)]

class DefaultOnToggle(Toggle):
    default = 1


class Choice(Option):
    autodisplayname = True

    def __init__(self, value: int):
        self.value: int = value

    @classmethod
    def from_text(cls, text: str) -> Choice:
        for optionname, value in cls.options.items():
            if optionname == text.lower():
                return cls(value)
        raise KeyError(
            f'Could not find option "{text}" for "{cls.__name__}", '
            f'known options are {", ".join(f"{option}" for option in cls.name_lookup.values())}')

    @classmethod
    def from_any(cls, data: typing.Any) -> Choice:
        if type(data) == int and data in cls.options.values():
            return cls(data)
        return cls.from_text(str(data))


class Range(Option, int):
    range_start = 0
    range_end = 1

    def __init__(self, value: int):
        if value < self.range_start:
            raise Exception(f"{value} is lower than minimum {self.range_start} for option {self.__class__.__name__}")
        elif value > self.range_end:
            raise Exception(f"{value} is higher than maximum {self.range_end} for option {self.__class__.__name__}")
        self.value = value

    @classmethod
    def from_text(cls, text: str) -> Range:
        text = text.lower()
        if text.startswith("random"):
            if text == "random-low":
                return cls(int(round(random.triangular(cls.range_start, cls.range_end, cls.range_start), 0)))
            elif text == "random-high":
                return cls(int(round(random.triangular(cls.range_start, cls.range_end, cls.range_end), 0)))
            elif text == "random-middle":
                return cls(int(round(random.triangular(cls.range_start, cls.range_end), 0)))
            else:
                return cls(random.randint(cls.range_start, cls.range_end))
        return cls(int(text))

    @classmethod
    def from_any(cls, data: typing.Any) -> Range:
        if type(data) == int:
            return cls(data)
        return cls.from_text(str(data))

    def get_option_name(self, value):
        return str(self.value)

    def __str__(self):
        return str(self.value)


class OptionNameSet(Option):
    default = frozenset()

    def __init__(self, value: typing.Set[str]):
        self.value: typing.Set[str] = value

    @classmethod
    def from_text(cls, text: str) -> OptionNameSet:
        return cls({option.strip() for option in text.split(",")})

    @classmethod
    def from_any(cls, data: typing.Any) -> OptionNameSet:
        if type(data) == set:
            return cls(data)
        return cls.from_text(str(data))


class OptionDict(Option):
    default = {}

    def __init__(self, value: typing.Dict[str, typing.Any]):
        self.value: typing.Dict[str, typing.Any] = value

    @classmethod
    def from_any(cls, data: typing.Dict[str, typing.Any]) -> OptionDict:
        if type(data) == dict:
            return cls(data)
        else:
            raise NotImplementedError(f"Cannot Convert from non-dictionary, got {type(data)}")

    def get_option_name(self, value):
        return str(value)


local_objective = Toggle  # local triforce pieces, local dungeon prizes etc.


class Accessibility(Choice):
    option_locations = 0
    option_items = 1
    option_beatable = 2


if __name__ == "__main__":

    from worlds.alttp.Options import Logic
    import argparse
    mapshuffle = Toggle
    compassshuffle = Toggle
    keyshuffle = Toggle
    bigkeyshuffle = Toggle
    hints = Toggle
    test = argparse.Namespace()
    test.logic = Logic.from_text("no_logic")
    test.mapshuffle = mapshuffle.from_text("ON")
    test.hints = hints.from_text('OFF')
    try:
        test.logic = Logic.from_text("overworld_glitches_typo")
    except KeyError as e:
        print(e)
    try:
        test.logic_owg = Logic.from_text("owg")
    except KeyError as e:
        print(e)
    if test.mapshuffle:
        print("Mapshuffle is on")
    print(f"Hints are {bool(test.hints)}")
    print(test)
