__author__ = "Dennis Potter"
__copyright__ = "Copyright 2019, Dennis Potter"
__credits__ = ["Dennis Potter"]
__license__ = "GPL-3.0"
__version__ = "0.5.0"
__maintainer__ = "Dennis Potter"
__email__ = "dennis@dennispotter.eu"

from matrix_bot_api.mregex_handler import MRegexHandler
import os
import re
import hjson

MESSAGE_DIR = os.path.join(os.path.dirname(__file__), 'messages')
CONFIG_LOCATION = os.path.join(os.path.dirname(__file__), 'config.hjson')

HELP_LOCATION = MESSAGE_DIR + '/help'
MESSAGES_LOCATION = MESSAGE_DIR + '/messages.dutch.hjson'

class Plugin:
    """ This plugins searches in a Mediawiki instance. If the wiki
    is protected by an .htpasswd, this password can be returned by the
    bot, and will also be included in search queries.
    """

    def __init__(self, bot):
        # Load the configuration
        with open(CONFIG_LOCATION) as hjson_data:
            self.config = hjson.load(hjson_data)

        # Load all messages for this plugin
        with open(MESSAGES_LOCATION) as hjson_data:
            self.messages = hjson.load(hjson_data)

        # Define sensitivity
        self.handler = []

        self.handler.append(MRegexHandler(
            "Peter wiki search",
            self.search,
            bot))

        self.handler.append(MRegexHandler(
            "Peter wiki login",
            self.login,
            bot))


        # Save parent bot
        self.bot = bot

    def search(self, room, event):
        try:
            searchMatchObj = re.match(
                r'.*wiki search (.*)',
                event['content']['body'],
                re.M|re.I)

            if self.config['htpasswd']['enabled']:
                urlMatchObj = re.match(
                    r'(http://|https://)(.*)',
                    self.config['base_url'],
                    re.M|re.I)

                url = "{}{}:{}@{}/index.php?search={}".format(
                    urlMatchObj.group(1), # http:// or https://
                    self.config['htpasswd']['username'],
                    self.config['htpasswd']['password'],
                    urlMatchObj.group(2), # remainder of base url
                    searchMatchObj.group(1))
            else:
                url = "{}/index.php?search={}".format(
                    self.config['base_url'],
                    searchMatchObj.group(1))

            room.send_html(self.messages['search_query'].format(
                searchMatchObj.group(1),
                url))
        except AttributeError:
            room.send_html(self.messages['invalid_query'])

    def login(self, room, event):
        if self.config['htpasswd']['enabled']:
            room.send_html(self.messages['login_message_htpasswd'].format(
                self.config['base_url'],
                self.config['base_url'],
                self.config['htpasswd']['username'],
                self.config['htpasswd']['password']))
        else:
            room.send_html(self.messages['login_message'].format(
                self.config['base_url']))

    def help(self):
        return open(HELP_LOCATION, mode="r").read()