# -*- coding: utf-8 -*-

import asyncio
import logging

from telethon import types

from .. import loader, utils

logger = logging.getLogger(__name__)


@loader.tds
class PMLogMod(loader.Module):
    """Logs unwanted PMs to a channel"""

    strings = {
        "name": "PM Logger",
        "start": "<b>Your conversation is now being logged</b>",
        "not_pm": "<b>You can't log a group</b>",
        "stopped": "<b>Your conversation is no longer being logged</b>",
        "log_group_cfg_doc": "Group or channel ID where to send the logged PMs",
    }

    def __init__(self):
        self.config = loader.ModuleConfig(
            "LOG_GROUP", None, lambda m: self.strings("log_group_cfg_doc", m)
        )

    async def logpmcmd(self, message):
        """Begins logging PMs"""
        if (
            not message.is_private
            or message.to_id.user_id == (await message.client.get_me(True)).user_id
        ):
            await utils.answer(message, self.strings("not_pm", message))
            return
        self._db.set(
            __name__,
            "users",
            list(set(self._db.get(__name__, "users", []) + [message.to_id.user_id])),
        )
        msgs = await utils.answer(message, self.strings("start", message))
        await asyncio.sleep(1)
        await message.client.delete_messages(message.to_id, msgs)

    async def unlogpmcmd(self, message):
        """Stops logging PMs"""
        if (
            not message.is_private
            or message.to_id.user_id == (await message.client.get_me(True)).user_id
        ):
            await utils.answer(message, self.strings("not_pm", message))
            return
        self._db.set(
            __name__,
            "users",
            list(
                set(self._db.get(__name__, "users", [])).difference(
                    [message.to_id.user_id]
                )
            ),
        )
        await utils.answer(message, self.strings("stopped", message))

    async def watcher(self, message):
        if not message.is_private or not isinstance(message, types.Message):
            return
        if self.config["LOG_GROUP"] and utils.get_chat_id(message) in self._db.get(
            __name__, "users", []
        ):
            await message.forward_to(self.config["LOG_GROUP"])

    async def client_ready(self, client, db):
        self._db = db