import math
from BaseClasses import Region, Item, ItemClassification
from .Locations import grinch_locations_to_id, grinch_locations, GrinchLocation, get_location_names_per_category
from .Items import (
    grinch_items_to_id,
    GrinchItem,
    ALL_ITEMS_TABLE,
    MISC_ITEMS_TABLE,
    get_item_names_per_category,
    TRAPS_TABLE,
)
from .Regions import connect_regions
from .Rules import set_location_rules

from .Client import *
from typing import ClassVar

from worlds.AutoWorld import World
from Options import OptionError

from .Options import GrinchOptions
from .Rules import access_rules_dict


class GrinchWorld(World):
    game: ClassVar[str] = "The Grinch"
    options_dataclass = Options.GrinchOptions
    options: Options.GrinchOptions
    topology_present = True  # not an open world game, very linear
    item_name_to_id: ClassVar[dict[str, int]] = grinch_items_to_id()
    location_name_to_id: ClassVar[dict[str, int]] = grinch_locations_to_id()
    required_client_version = (0, 6, 3)
    item_name_groups = get_item_names_per_category()
    location_name_groups = get_location_names_per_category()

    def __init__(self, *args, **kwargs):  # Pulls __init__ function and takes control from there in BaseClasses.py
        self.origin_region_name: str = "Mount Crumpit"
        super(GrinchWorld, self).__init__(*args, **kwargs)

    def generate_early(self) -> None:  # Special conditions changed before generation occurs
        if self.options.ring_link == 1 and self.options.unlimited_eggs == 1:
            raise OptionError(
                "Cannot enable both unlimited rotten eggs and ring links. You can only enable one of these at a time."
                + f"The following player's YAML needs to be fixed: {self.player_name}"
            )

    def create_regions(self):  # Generates all regions for the multiworld
        for region_name in access_rules_dict.keys():
            self.multiworld.regions.append(Region(region_name, self.player, self.multiworld))
        self.multiworld.regions.append(Region("Mount Crumpit", self.player, self.multiworld))
        for location, data in grinch_locations.items():
            region = self.get_region(data.region)
            entry = GrinchLocation(self.player, location, region, data)
            if location == "MC - Sleigh Ride - Neutralizing Santa":
                entry.place_locked_item(Item("Goal", ItemClassification.progression, None, self.player))
            region.locations.append(entry)
        connect_regions(self)

    def create_item(self, item: str) -> GrinchItem:  # Creates specific items on demand
        if item in ALL_ITEMS_TABLE.keys():
            return GrinchItem(item, self.player, ALL_ITEMS_TABLE[item])
        raise Exception(f"Invalid item name: {item}")

    def create_items(self):  # Generates all items for the multiworld
        self_itempool: list[GrinchItem] = []
        for item, data in ALL_ITEMS_TABLE.items():
            self_itempool.append(self.create_item(item))
            if item == "Heart of Stone":
                for _ in range(3):
                    self_itempool.append(self.create_item(item))

        # Get number of current unfilled locations
        unfilled_locations: int = (
            len(self.multiworld.get_unfilled_locations(self.player)) - len(ALL_ITEMS_TABLE.keys()) - 3
        )

        filler_locations: int = math.floor(unfilled_locations * (1 - (self.options.trap_percentage / 100)))
        trap_locations: int = math.floor(unfilled_locations * (self.options.trap_percentage / 100))

        # This catches the extra 1 or 2 unfilled_locations that come up from the math.floor()
        extra_locations = unfilled_locations - (filler_locations + trap_locations)
        filler_locations != extra_locations

        # Total available weight sum
        total_fillerweights = sum(self.options.filler_weight[filler] for filler in MISC_ITEMS_TABLE)

        # Fill remaining locations according to weight ratio
        for filler in MISC_ITEMS_TABLE:
            # This ratio is a decimal between 0 and 1, and when multiplied by 100 is the % of that filler
            # item in the available unfilled locations
            filler_weight_ratio = self.options.filler_weight[filler] / total_fillerweights
            filler_count = round(filler_locations * filler_weight_ratio)

            for _ in range(filler_count):
                self_itempool.append(self.create_item(filler))

        # # Make sure we don't underfill (in case of rounding losses)
        # while len(self_itempool) < unfilled_locations:
        #     self_itempool.append(self.create_item(self.get_other_filler_item(list(MISC_ITEMS_TABLE.keys()))))

        # Total available weight sum
        if self.options.trap_percentage > 0:
            total_trapweights = sum(self.options.trap_weight[trap] for trap in TRAPS_TABLE)

            if self.options.trap_percentage > 0 && total_trapweights <= 0:
                raise Exception("ERROR: Traps are enabled, but all trap weights are zero or undefined")

            for trap in TRAPS_TABLE:
                trap_weight_ratio = self.options.trap_weight[trap] / total_trapweights
                trap_count = round(trap_locations * trap_weight_ratio)
                for _ in range(trap_count):
                    self_itempool.append(self.create_item(trap))

        self.multiworld.itempool += self_itempool

    def set_rules(self):
        self.multiworld.completion_condition[self.player] = lambda state: state.has("Goal", self.player)
        set_location_rules(self)

    def get_other_filler_item(self, other_filler: list[str]) -> str:
        return self.random.choices(other_filler)[0]

    def fill_slot_data(self):
        return {
            "give_unlimited_eggs": self.options.unlimited_eggs.value,
            "ring_link": self.options.ring_link.value,
        }

    def generate_output(self, output_directory: str) -> None:
        # print("")
        pass