"""
The MIT License (MIT)

Copyright (c) 2015-present Rapptz

Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

The Software is modified as follows:
    - Delete unused functions and method.
    - Removing functions beyond what is necessary to make it work.
    - Adding new functions and methods

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
"""

from __future__ import annotations

import asyncio
import importlib
import inspect
import re
import sys
import traceback
from types import ModuleType
from typing import (
    TYPE_CHECKING,
    Any,
    Callable,
    Coroutine,
    List,
    Optional,
    Tuple,
    Union,
)

from mipac.models.emoji import CustomEmoji
from mipac.models.user import MeDetailed, UserDetailedNotMe

from mipa import Client
from mipa.exception import (
    CogNameDuplicate,
    ExtensionAlreadyLoaded,
    ExtensionFailed,
    InvalidCogPath,
    NoEntryPointError,
)
from mipa.ext.commands.context import Context
from mipa.ext.commands.core import CommandManager

if TYPE_CHECKING:
    from aiohttp.client_ws import ClientWebSocketResponse
    from mipac.models.notification import (
        NotificationAchievement,
        NotificationFollow,
        NotificationFollowRequest,
        NotificationNote,
        NotificationPollEnd,
        NotificationReaction,
    )

    from mipa.ext import Cog


__all__ = ["BotBase", "Bot"]


class BotBase(CommandManager):
    def __init__(self, **options: dict[Any, Any]):
        super().__init__(**options)
        self.extra_events: dict[str, Any] = {}
        self.special_events: dict[str, Any] = {}
        self._check_once: List[Any] = []  # TODO: いつか確認する
        self._checks: List[Any] = []  # TODO: いつか確認する
        self._after_invoke = None
        self.token: Optional[str] = None
        self.origin_uri: Optional[str] = None
        self.__extensions: dict[str, Any] = {}
        self.user: MeDetailed
        self.__cogs: dict[str, Cog] = {}
        self.strip_after_prefix = options.get("strip_after_prefix", False)
        # self.logger = get_module_logger(__name__) TODO: 直す
        self.loop = asyncio.get_event_loop()

    def _on_note(self, message):
        self.dispatch("note", message)

    async def on_ready(self, ws: ClientWebSocketResponse):
        """
        on_readyのデフォルト処理

        Parameters
        ----------
        ws : ClientWebSocketResponse
        """

    def event(self, name: Optional[str] = None):
        def decorator(func: Coroutine[Any, Any, Any]):
            self.add_event(func, name)
            return func

        return decorator

    def add_event(
        self, func: Coroutine[Any, Any, Any], name: Optional[str] = None
    ):
        name = func.__name__ if name is None else name
        if not asyncio.iscoroutinefunction(func):
            raise TypeError("Listeners must be coroutines")

        if name in self.extra_events:
            self.special_events[name].append(func)
        else:
            self.special_events[name] = [func]

    def listen(self, name: Optional[str] = None):
        def decorator(func: Coroutine[Any, Any, Any]):
            self.add_listener(func, name)
            return func

        return decorator

    def add_listener(
        self,
        func: Union[Coroutine[Any, Any, Any], Callable[..., Any]],
        name: Optional[str] = None,
    ):
        name = func.__name__ if name is None else name
        if not asyncio.iscoroutinefunction(func):
            raise TypeError("Listeners must be coroutines")

        if name in self.extra_events:
            self.extra_events[name].append(func)
        else:
            self.extra_events[name] = [func]

    async def event_dispatch(
        self, event_name: str, *args: Tuple[Any], **kwargs: dict[Any, Any]
    ) -> bool:
        """
        on_ready等といった

        Parameters
        ----------
        event_name :
        args :
        kwargs :

        Returns
        -------

        """
        ev = f"on_{event_name}"
        for event in self.special_events.get(ev, []):
            foo = importlib.import_module(event.__module__)
            coro = getattr(foo, ev)
            await self.schedule_event(coro, event, *args, **kwargs)
        if ev in dir(self):
            await self.schedule_event(getattr(self, ev), ev, *args, **kwargs)
        return ev in dir(self)

    def dispatch(
        self, event_name: str, *args: tuple[Any], **kwargs: dict[Any, Any]
    ):
        ev = f"on_{event_name}"
        for event in self.extra_events.get(ev, []):
            if inspect.ismethod(event):
                coro = event
                event = event.__name__
            else:
                foo = importlib.import_module(event.__module__)
                coro = getattr(foo, ev)
            self.schedule_event(coro, event, *args, **kwargs)
        if ev in dir(self):
            self.schedule_event(getattr(self, ev), ev, *args, **kwargs)

    async def add_cog(self, cog: Cog, override: bool = False) -> None:
        cog_name = cog.__cog_name__
        existing = self.__cogs.get(cog_name)
        if existing is not None:
            if not override:
                raise CogNameDuplicate()
            await self.remove_cog(cog_name)  # TODO: 作る

        cog = cog._inject(self)
        self.__cogs[cog_name] = cog

    async def remove_cog(self, name: str):  # TODO: Optional[Cog]を返すように
        """Cogを削除します"""
        cog = self.__cogs.get(name)
        if cog is None:
            return

        cog._inject(self)

        return cog

    async def _load_from_module(self, spec: ModuleType, key: str) -> None:
        try:
            setup = spec.setup
        except AttributeError as e:
            raise NoEntryPointError(f"{key} にsetupが存在しません") from e

        try:
            await setup(self)
        except Exception as e:
            raise ExtensionFailed(key, e) from e
        else:
            self.__extensions[key] = spec

    @staticmethod
    def _resolve_name(name: str, package: Optional[str]) -> str:
        try:
            return importlib.util.resolve_name(name, package)  # pyright: ignore
        except ImportError as e:
            raise InvalidCogPath(name) from e

    async def load_extension(
        self, name: str, *, package: Optional[str] = None
    ) -> None:
        """拡張をロードする

        Parameters
        ----------
        name : str
            [description]
        package : Optional[str], optional
            [description], by default None
        """
        name = self._resolve_name(name, package)
        if name in self.__extensions:
            raise ExtensionAlreadyLoaded
        try:
            module = importlib.import_module(name)
        except ModuleNotFoundError as e:
            raise InvalidCogPath(f"cog: {name} へのパスが無効です") from e
        await self._load_from_module(module, name)

    def schedule_event(
        self,
        coro: Callable[..., Coroutine[Any, Any, Any]],
        event_name: str,
        *args: tuple[Any],
        **kwargs: dict[Any, Any],
    ) -> asyncio.Task[Any]:
        return asyncio.create_task(
            self._run_event(coro, event_name, *args, **kwargs),
            name=f"MiPA: {event_name}",
        )

    async def _run_event(
        self,
        coro: Callable[..., Coroutine[Any, Any, Any]],
        event_name: str,
        *args: Any,
        **kwargs: Any,
    ) -> None:
        try:
            await coro(*args, **kwargs)
        except asyncio.CancelledError:
            pass
        except Exception:
            try:
                await self.__on_error(event_name)
            except asyncio.CancelledError:
                pass

    @staticmethod
    async def __on_error(event_method: str) -> None:
        print(f"Ignoring exception in {event_method}", file=sys.stderr)
        traceback.print_exc()

    async def on_error(self, err):
        await self.event_dispatch("error", err)

    def get_cog(self, name: str) -> Cog | None:
        return self.__cogs.get(name)

    async def get_context(self, message, cmd, cls=Context) -> Context:
        return cls(message=message, bot=self, cmd=cmd)

    async def progress_command(self, message):
        for cmd in self.all_commands:
            ctx = await self.get_context(message, cmd)
            if cmd.cmd_type == "regex":
                if re.search(cmd.key, message.content):
                    hit_list = re.findall(cmd.key, message.content)
                    if isinstance(hit_list, list):
                        hit_list = tuple(hit_list)

                    if isinstance(hit_list[0], tuple):
                        hit_list = tuple(
                            i for i in hit_list[0] if len(i.rstrip()) > 0
                        )
                    ctx.args = hit_list
                    await cmd.func.invoke(ctx)
            elif message.content.find(cmd.key) != -1:
                await cmd.func.invoke(ctx)
            else:
                continue

    async def on_user_follow(self, user: UserDetailedNotMe):
        """
        When you follow a user

        Parameters
        ----------
        user : UserDetailed
        """

    async def on_user_unfollow(self, user: UserDetailedNotMe):
        """
        When you unfollow a user

        Parameters
        ----------
        user : UserDetailed
        """

    async def on_user_followed(self, notice: NotificationFollow):
        """
        When someone follows you

        Parameters
        ----------
        notice : NotificationFollow
        """

    async def on_mention(self, notice: NotificationNote):
        """
        When someone mentions you

        Parameters
        ----------
        notice : NotificationNote
        """
        await self.progress_command(notice.note)

    async def on_reply(self, notice: NotificationNote):
        """
        When someone replies to you

        Parameters
        ----------
        notice : NotificationNote
        """

    async def on_renote(self, notice: NotificationNote):
        """
        When someone renote your note

        Parameters
        ----------
        notice : NotificationNote
        """

    async def on_quote(self, notice: NotificationNote):
        """
        When someone quote your note

        Parameters
        ----------
        notice : NotificationNote
        """

    async def on_reaction(self, notice: NotificationReaction):
        """
        When someone react to your note

        Parameters
        ----------
        notice : NotificationReaction
        """

    async def on_poll_vote(self, notice: NotificationNote):
        """
        When someone vote to your poll

        Parameters
        ----------
        notice : NotificationNote
        """

    async def on_poll_end(self, notice: NotificationPollEnd):
        """
        When a poll is ended

        Parameters
        ----------
        notice : NotificationPollEnd
        """

    async def on_follow_request(self, notice: NotificationFollowRequest):
        """
        When someone send you a follow request

        Parameters
        ----------
        notice : NotificationFollowRequest
        """

    async def on_follow_request_accept(self, notice: NotificationFollow):
        """
        When someone accept your follow request

        Parameters
        ----------
        notice : NotificationFollow
        """

    async def on_achievement_earned(self, notice: NotificationAchievement):
        """
        When you earn an achievement

        Parameters
        ----------
        notice : NotificationAchievement
        """

    async def on_emoji_deleted(self, emojis: list[CustomEmoji]):
        """
        カスタム絵文字が削除された

        Parameters
        ----------
        emojis : list[CustomEmoji]
            削除された絵文字のリスト
        """

    async def on_emoji_updated(self, emojis: list[CustomEmoji]):
        """
        カスタム絵文字が更新された

        Parameters
        ----------
        emojis : list[CustomEmoji]
            更新された絵文字のリスト
        """


class Bot(BotBase, Client):
    pass