import re
import logging

from nio import AsyncClient, MatrixRoom
from markdown import markdown

from .utils import setup_logger
from .exceptions import NoRoomException


class Message(object):
    def __init__(self,
                 _type: str = 'm.room.message',
                 loglevel: int = 10) -> None:
        self.__type = _type
        self.__ignore_unverified_devices = True
        self.__logger = setup_logger(__name__)

    async def send(self, client: AsyncClient,
                   room: (MatrixRoom, None)) -> None:
        if room:
            self.logger.debug('Sending message: %s', self.content)
            await client.room_send(
                room.room_id,
                self.type,
                self.content,
                ignore_unverified_devices=self.ignore_unverified_devices)
        else:
            raise NoRoomException()

    @property
    def type(self) -> str:
        return self.__type

    @property
    def ignore_unverified_devices(self) -> bool:
        return self.__ignore_unverified_devices

    @property
    def logger(self) -> logging.Logger:
        return self.__logger

    @property
    def content(self) -> str:
        raise NotImplementedError('content must be implemented')


class TextMessage(Message):
    def __init__(self,
                 body: str,
                 msgtype: str = 'm.notice',
                 _type: str = 'm.room.message') -> None:
        super().__init__(_type)
        self.body = body
        self.msgtype = msgtype

    @property
    def content(self) -> dict:
        content = {'msgtype': self.msgtype, 'body': self.body}
        return content


class MarkdownMessage(Message):

    clean_regexp = re.compile('<.*?>')

    def __init__(self,
                 body: str,
                 msgtype: str = 'm.notice',
                 _type: str = 'm.room.message') -> None:
        super().__init__(_type)
        self.formatted_body = markdown(body)
        self.format = 'org.matrix.custom.html'
        self.body = self.__clean_html(self.formatted_body)
        self.msgtype = msgtype

    def __clean_html(self, raw_html: str) -> str:
        cleantext = re.sub(self.clean_regexp, '', raw_html)
        return cleantext

    @property
    def content(self) -> dict:
        content = {
            'msgtype': self.msgtype,
            'body': self.body,
            'formatted_body': self.formatted_body,
            'format': self.format
        }
        return content