from collections.abc import Sequence
from dataclasses import dataclass
from abc import ABC
import random

from BaseClasses import Item, ItemClassification
from .Strings import Itm, Game, Meta, APHelper
from .Addresses import NTSCU

### [< --- HELPERS --- >]
class AE3Item(Item):
    """
    Defines an Item in Ape Escape 3. These include but are not limited to the Gadgets, Morphs and select buyable items
    in the Shopping District.
    """

    game : str = Meta.game

@dataclass
class AE3ItemMeta(ABC):
    """Base Data Class for all Items in Ape Escape 3."""
    name : str
    item_id : int
    address : int

    def to_item(self, player : int) -> AE3Item:
        return AE3Item(self.name, ItemClassification.filler, self.item_id, player)

@dataclass
class EquipmentItem(AE3ItemMeta):
    """
    Base Data Class for any Item that the player can only have one of. They can only be either locked or unlocked.

    Parameters:
        name : Name of Item from Strings.py
    """

    def __init__(self, name : str):
        self.name = name
        # Equipment can be assumed to always be in Addresses.Items. NTSCU version will be used as basis for the ID.
        self.item_id = NTSCU.Items[name]
        self.address = self.item_id

    def to_item(self, player : int, classification : ItemClassification = ItemClassification.progression) -> AE3Item:
        return AE3Item(self.name, classification, self.item_id, player)

@dataclass
class CollectableItem(AE3ItemMeta):
    """
    Base Data Class for any Item that the player can obtain multiples of continuously regardless of whether the player
    is allowed to collect more.

    Parameters:
        name : Name of Item from Strings.py
        resource : Name of resource affected by Item from Strings.py
        amount : Amount of the Item to give
        weight : How often to be chosen to fill a location
        id_offset : (default : 0) Added Offset to ID for Items that target the same Memory Address
    """

    resource : str
    amount : int | float
    capacity : int
    weight : int

    def __init__(self, name : str, resource : str, amount : int | float, weight : int, id_offset : int = 0):
        self.name = name
        # Collectables can be assumed to always be in Addresses.Items. NTSCU version will be used as basis for the ID.
        self.address = NTSCU.GameStates[resource]
        self.item_id = self.address + id_offset
        self.resource = resource

        self.amount = amount
        self.capacity = Capacities[resource]
        self.weight = weight


class UpgradeableItem(AE3ItemMeta):
    """
    Base class for any item the player can obtain multiples of but only exists in specific amounts.

    Parameters:
        name : Name of Item from Strings.py
        resource : Name of resource affected by Item from Strings.py
        limit : Maximum amount of the item that is expected to exist in the game
        id_offset : (default : 0) Added Offset to ID for Items that target the same Memory Address
    """

    resource : str
    amount : int | float
    limit : int

    def __init__(self, name : str, resource : str, amount : int | float, limit : int, id_offset : int = 0):
        self.name = name
        # Upgradeables can be assumed to always be in Addresses.Items. NTSCU version will be used as basis for the ID.
        self.address = NTSCU.GameStates[resource]
        self.item_id = self.address + id_offset
        self.resource = resource

        self.amount = amount
        self.limit = limit

    def to_item(self, player : int, classification : ItemClassification = ItemClassification.useful) -> AE3Item:
        return AE3Item(self.name, classification, self.item_id, player)

    def to_items(self, player : int, classification : ItemClassification = ItemClassification.useful) -> list[AE3Item]:
        return [self.to_item(player, classification) for _ in range(self.limit)]

class ArchipelagoItem(AE3ItemMeta):
    """Base class for any non in-game item"""
    def __init__(self, name : str):
        self.name = name
        self.item_id = AP[name]

    def to_item(self, player : int) -> AE3Item:
        return AE3Item(self.name, ItemClassification.progression, self.item_id, player)

    def to_items(self, player : int, amount : int):
        return [self.to_item(player) for _ in range(amount)]

### [< --- DATA --->]
Capacities : dict[str, int | float] = {
    Game.morph_duration.value       : 30.0,
    Game.nothing.value              : 0x0,
    Game.cookies.value              : 100.0,
    Game.jackets.value              : 0x63,
    Game.chips.value                : 0x270F,
    Game.morph_gauge_active.value   : 30.0,
    Game.morph_stocks.value         : 1100.0,
    Game.ammo_boom.value            : 0x9,
    Game.ammo_homing.value          : 0x9,
}

HUD_OFFSETS : dict[str, int] = {
    Game.jackets.value              : 0x0,
    Game.cookies.value              : 0x4,
    Game.chips.value                : 0x6,
}

AP : dict[str, int] = {
    APHelper.channel_key.value      : 0x3E8,
    APHelper.victory.value          : 0x3E9,
    APHelper.shop_stock.value       : 0x3EA,
    APHelper.hint_book.value        : 0x3EB,
}

### [< --- ITEMS --- >]
# Gadgets
Gadget_Club = EquipmentItem(Itm.gadget_club.value)
Gadget_Net = EquipmentItem(Itm.gadget_net.value)
Gadget_Radar = EquipmentItem(Itm.gadget_radar.value)
Gadget_Hoop = EquipmentItem(Itm.gadget_hoop.value)
Gadget_Sling = EquipmentItem(Itm.gadget_sling.value)
Gadget_Swim = EquipmentItem(Itm.gadget_swim.value)
Gadget_RCC = EquipmentItem(Itm.gadget_rcc.value)
Gadget_Fly = EquipmentItem(Itm.gadget_fly.value)

# Morphs
Morph_Knight = EquipmentItem(Itm.morph_knight.value)
Morph_Cowboy = EquipmentItem(Itm.morph_cowboy.value)
Morph_Ninja = EquipmentItem(Itm.morph_ninja.value)
Morph_Magician = EquipmentItem(Itm.morph_magician.value)
Morph_Kungfu = EquipmentItem(Itm.morph_kungfu.value)
Morph_Hero = EquipmentItem(Itm.morph_hero.value)
Morph_Monkey = EquipmentItem(Itm.morph_monkey.value)

# Accessories
Chassis_Twin = EquipmentItem(Itm.chassis_twin.value)
Chassis_Black = EquipmentItem(Itm.chassis_black.value)
Chassis_Pudding = EquipmentItem(Itm.chassis_pudding.value)

# Upgradeables
Acc_Morph_Stock = UpgradeableItem(Itm.acc_morph_stock.value, Game.morph_stocks.value, 100.0, 10)
Acc_Morph_Ext = UpgradeableItem(Itm.acc_morph_ext.value, Game.morph_duration.value, 2.0, 10)

# Collectables
Nothing = CollectableItem(Itm.nothing.value, Game.nothing.value,0, 1)

Cookie = CollectableItem(Itm.cookie.value, Game.cookies.value, 20.0, 20)
Cookie_Giant = CollectableItem(Itm.cookie_giant.value, Game.cookies.value, 100.0, 10, 0x01)
Jacket = CollectableItem(Itm.jacket.value, Game.jackets.value, 1, 5)
Chip_1x = CollectableItem(Itm.chip_1x.value, Game.chips.value, 1, 40)
Chip_5x = CollectableItem(Itm.chip_5x.value, Game.chips.value, 5, 35, 0x01)
Chip_10x = CollectableItem(Itm.chip_10x.value, Game.chips.value, 10, 30, 0x02)
Energy = CollectableItem(Itm.energy.value, Game.morph_gauge_active.value, 3.0, 40,0x0)
Energy_Mega = CollectableItem(Itm.energy_mega.value, Game.morph_gauge_active.value, 30.0, 10,
                              0x01)

Ammo_Boom = CollectableItem(Itm.ammo_boom.value, Game.ammo_boom.value, 1, 25)
Ammo_Homing = CollectableItem(Itm.ammo_homing.value, Game.ammo_homing.value, 1, 25)

# Archipelago
Channel_Key = ArchipelagoItem(APHelper.channel_key.value)
Shop_Stock = ArchipelagoItem(APHelper.shop_stock.value)
Hint_Book = ArchipelagoItem(APHelper.hint_book.value)
Victory = ArchipelagoItem(APHelper.victory.value)

### [< --- ITEM GROUPS --- >]
GADGETS : Sequence[EquipmentItem] = [
    Gadget_Swim, Gadget_Club, Gadget_Net, Gadget_Radar, Gadget_Hoop, Gadget_Sling, Gadget_RCC, Gadget_Fly
]

MORPHS : Sequence[EquipmentItem] = [
    Morph_Knight, Morph_Cowboy, Morph_Ninja, Morph_Magician, Morph_Kungfu, Morph_Hero, Morph_Monkey
]

EQUIPMENT : Sequence[EquipmentItem] = [
    *GADGETS, *MORPHS
]

ACCESSORIES : Sequence[EquipmentItem] = [
    Chassis_Twin, Chassis_Black, Chassis_Pudding
]

UPGRADEABLES : Sequence[UpgradeableItem] = [
    Acc_Morph_Stock, Acc_Morph_Ext
]

COLLECTABLES : Sequence[CollectableItem] = [
    Nothing, Cookie, Cookie_Giant, Jacket, Chip_1x, Chip_5x, Chip_10x, Energy, Energy_Mega, Ammo_Boom, Ammo_Homing
]

ARCHIPELAGO : Sequence[ArchipelagoItem] = [
    Channel_Key, Shop_Stock, Hint_Book, Victory
]

ITEMS_MASTER : Sequence[AE3ItemMeta] = [
    *GADGETS, *MORPHS, *ACCESSORIES, *UPGRADEABLES, *COLLECTABLES, *ARCHIPELAGO
]

ITEMS_INDEX : Sequence[Sequence] = [
    ITEMS_MASTER, GADGETS, MORPHS, EQUIPMENT, ACCESSORIES, UPGRADEABLES, COLLECTABLES, ARCHIPELAGO
]

### [< --- METHODS --- >]
def from_id(item_id = int, category : int = 0):
    """Get Item by its ID"""
    ref : Sequence = ITEMS_INDEX[category]

    i : AE3ItemMeta = next((i for i in ref if i.item_id == item_id), None)
    return i

def generate_name_to_id() -> dict[str : int]:
    """Get a Dictionary of all Items in Name-ID pairs"""
    i : AE3ItemMeta
    return {i.name : i.item_id for i in ITEMS_MASTER}

def generate_item_groups() -> dict[str : set[str]]:
    """Get a Dictionary of Item Groups"""
    groups : dict[str : set[str]] = {}

    i : AE3ItemMeta
    # Gadgets
    for i in GADGETS:
        groups.setdefault(APHelper.gadgets.value, set()).add(i.name)

    # Morphs
    for i in MORPHS:
        groups.setdefault(APHelper.morphs.value, set()).add(i.name)

    # Equipment
    groups.setdefault(APHelper.equipment.value, set()).update(groups[APHelper.gadgets.value])
    groups.setdefault(APHelper.equipment.value, set()).update(groups[APHelper.morphs.value])

    # Morphs (without Super Monkey)
    groups.setdefault(APHelper.morphs_no_monkey.value, groups[APHelper.morphs.value]).remove(Itm.morph_monkey.value)

    # RC Cars
    groups.setdefault(APHelper.rc_cars.value, set()).update([
        Itm.gadget_rcc.value, Itm.chassis_twin.value, Itm.chassis_black.value, Itm.chassis_pudding.value
    ])

    # Catch (Long)
    groups.setdefault(APHelper.catch_long.value, set()).update([
        Itm.morph_cowboy.value, Itm.morph_ninja.value, Itm.morph_magician.value, Itm.morph_hero.value
    ])

    # Attack
    groups.setdefault(APHelper.attack.value, set()).update([
        Itm.gadget_club.value, Itm.gadget_sling.value, *groups[APHelper.morphs_no_monkey.value]
    ])

    # Hit
    groups.setdefault(APHelper.hit.value, set()).update([
        Itm.gadget_hoop.value, Itm.morph_monkey.value, Itm.gadget_fly.value, *groups[APHelper.rc_cars.value],
        *groups[APHelper.attack.value]
    ])

    # Dash
    groups.setdefault(APHelper.dash.value, set()).update([
        Itm.gadget_hoop.value, Itm.morph_ninja.value, Itm.morph_hero.value
    ])

    # Shoot
    groups.setdefault(APHelper.shoot.value, set()).update([
        Itm.gadget_sling.value, Itm.morph_cowboy.value, Itm.morph_hero.value
    ])

    # Fly
    groups.setdefault(APHelper.fly.value, set()).update([
        Itm.gadget_fly.value, Itm.morph_ninja.value
    ])

    # Glide
    groups.setdefault(APHelper.glide.value, set()).update([
        Itm.morph_hero.value, *groups[APHelper.fly.value]
    ])

    # Archipelago
    groups.setdefault(APHelper.archipelago.value, set()).update([
        APHelper.channel_key.value, APHelper.shop_stock.value
    ])

    return groups

def generate_collectables(rand : random, player : int, amt : int) -> list[AE3Item]:
    """Get a list of Items of the specified Archipelago"""
    weights : list[int] = [w.weight for w in COLLECTABLES]

    result : list[CollectableItem] = rand.choices([*COLLECTABLES], [*weights], k = amt)
    items : list[AE3Item] = [c.to_item(player) for c in result]

    return items