import csv
import enum
from dataclasses import dataclass, field
from functools import reduce
from pathlib import Path
from typing import Dict, List, Protocol, Union, Set, Optional

from BaseClasses import Item, ItemClassification
from .. import data
from ..logic.logic_event import all_events

ITEM_CODE_OFFSET = 717000

world_folder = Path(__file__).parent


class Group(enum.Enum):
    RESOURCE_PACK = enum.auto()
    FRIENDSHIP_PACK = enum.auto()
    COMMUNITY_REWARD = enum.auto()
    TRASH = enum.auto()
    FOOTWEAR = enum.auto()
    HATS = enum.auto()
    RING = enum.auto()
    WEAPON = enum.auto()
    WEAPON_GENERIC = enum.auto()
    WEAPON_SWORD = enum.auto()
    WEAPON_CLUB = enum.auto()
    WEAPON_DAGGER = enum.auto()
    WEAPON_SLINGSHOT = enum.auto()
    PROGRESSIVE_TOOLS = enum.auto()
    SKILL_LEVEL_UP = enum.auto()
    SKILL_MASTERY = enum.auto()
    BUILDING = enum.auto()
    WIZARD_BUILDING = enum.auto()
    DESERT_TRANSPORTATION = enum.auto()
    ISLAND_TRANSPORTATION = enum.auto()
    ARCADE_MACHINE_BUFFS = enum.auto()
    BASE_RESOURCE = enum.auto()
    WARP_TOTEM = enum.auto()
    GEODE = enum.auto()
    ORE = enum.auto()
    FERTILIZER = enum.auto()
    SEED = enum.auto()
    CROPSANITY = enum.auto()
    FISHING_RESOURCE = enum.auto()
    SEASON = enum.auto()
    TRAVELING_MERCHANT_DAY = enum.auto()
    MUSEUM = enum.auto()
    FRIENDSANITY = enum.auto()
    FESTIVAL = enum.auto()
    RARECROW = enum.auto()
    TRAP = enum.auto()
    BONUS = enum.auto()
    MAXIMUM_ONE = enum.auto()
    AT_LEAST_TWO = enum.auto()
    DEPRECATED = enum.auto()
    RESOURCE_PACK_USEFUL = enum.auto()
    SPECIAL_ORDER_BOARD = enum.auto()
    SPECIAL_ORDER_QI = enum.auto()
    BABY = enum.auto()
    GINGER_ISLAND = enum.auto()
    WALNUT_PURCHASE = enum.auto()
    TV_CHANNEL = enum.auto()
    QI_CRAFTING_RECIPE = enum.auto()
    CHEFSANITY = enum.auto()
    CHEFSANITY_STARTER = enum.auto()
    CHEFSANITY_QOS = enum.auto()
    CHEFSANITY_PURCHASE = enum.auto()
    CHEFSANITY_FRIENDSHIP = enum.auto()
    CHEFSANITY_SKILL = enum.auto()
    CRAFTSANITY = enum.auto()
    BOOK_POWER = enum.auto()
    LOST_BOOK = enum.auto()
    PLAYER_BUFF = enum.auto()
    # Mods
    MAGIC_SPELL = enum.auto()
    MOD_WARP = enum.auto()


@dataclass(frozen=True)
class ItemData:
    code_without_offset: Optional[int]
    name: str
    classification: ItemClassification
    mod_name: Optional[str] = None
    groups: Set[Group] = field(default_factory=frozenset)

    def __post_init__(self):
        if not isinstance(self.groups, frozenset):
            super().__setattr__("groups", frozenset(self.groups))

    @property
    def code(self):
        return ITEM_CODE_OFFSET + self.code_without_offset if self.code_without_offset is not None else None

    def has_any_group(self, *group: Group) -> bool:
        groups = set(group)
        return bool(groups.intersection(self.groups))


class StardewItemFactory(Protocol):
    def __call__(self, name: Union[str, ItemData], override_classification: ItemClassification = None) -> Item:
        raise NotImplementedError


def load_item_csv():
    from importlib.resources import files

    items = []
    with files(data).joinpath("items.csv").open() as file:
        item_reader = csv.DictReader(file)
        for item in item_reader:
            id = int(item["id"]) if item["id"] else None
            classification = reduce((lambda a, b: a | b), {ItemClassification[str_classification] for str_classification in item["classification"].split(",")})
            groups = {Group[group] for group in item["groups"].split(",") if group}
            mod_name = str(item["mod_name"]) if item["mod_name"] else None
            items.append(ItemData(id, item["name"], classification, mod_name, groups))
    return items


events = [
    ItemData(None, e, ItemClassification.progression)
    for e in sorted(all_events)
]

all_items: List[ItemData] = load_item_csv() + events
item_table: Dict[str, ItemData] = {}
items_by_group: Dict[Group, List[ItemData]] = {}


def initialize_groups():
    for item in all_items:
        for group in item.groups:
            item_group = items_by_group.get(group, list())
            item_group.append(item)
            items_by_group[group] = item_group


def initialize_item_table():
    item_table.update({item.name: item for item in all_items})


initialize_item_table()
initialize_groups()