233 lines
8.2 KiB
Python
233 lines
8.2 KiB
Python
'''
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Copyright (C) 2021 Alexander "PapaTutuWawa"
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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'''
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# TODO: Prevent subscriptions when subscribed to 'Alle'
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# TODO: remove Alle sollte jede subscription entfernen
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# TODO: Deal with weird casing and typos
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# TODO: pollen hilfe <CMD> should print help per command
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import asyncio
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import datetime
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from mira.module import BaseModule
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import requests
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import aioxmpp
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NAME = 'pollen'
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API_ENDPOINT = 'https://allergie.hexal.de/pollenflug/vorhersage/load_pollendaten.php'
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def api_query(plz, date):
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return API_ENDPOINT + '?datum={}&plz={}'.format(date, plz)
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def intensity_str(intensity):
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'''
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Map the intensity value to a human readable string
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'''
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return ('Kein Pollenflug',
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'Schwach',
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'Mittelschwer',
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'Stark')[intensity]
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class PollenModule(BaseModule):
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__instance = None
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_subcommand_table = {}
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_pollen_data = {} # PLZ -> Date -> Type -> Severity
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_dates_notified = {} # JID -> [Dates already sent out]
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_sleep_duration = 100
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@staticmethod
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def get_instance(base, **kwargs):
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if PollenModule.__instance == None:
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PollenModule(base, **kwargs)
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return PollenModule.__instance
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def __init__(self, base, **kwargs):
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if PollenModule.__instance != None:
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raise Exception('Trying to init singleton twice')
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super().__init__(base, **kwargs)
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PollenModule.__instance = self
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self._subcommand_table = {
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'add': self._subscribe,
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'remove': self._unsubscribe,
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'hilfe': self._help
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}
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self._sleep_duration = self.get_option('sleep_duration', 12 * 3600)
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# Load data
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# NOTE: Since we request the pollen_data at start anyway, we won't
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# need to save it. We only save dates_notified to prevent
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# sending one notification too many.
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self._dates_notified = self._stm.get_data('dates_notified')
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loop = asyncio.get_event_loop()
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periodic = loop.create_task(self._request_pollen_data(True))
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def notification_body(self, plz, date, allergies):
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'''
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Format a message that will be sent to the user
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'''
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msg = '{} (*{}*)\n'.format(date, plz)
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if allergies == ['Alle']:
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allergies = list(self._pollen_data[plz][date].keys)
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for allergy in allergies:
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msg += '{}: {}'.format(allergy, intensity_str(self._pollen_data[plz][date][allergy]))
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return msg
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def _is_notified(self, jid, date):
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'''
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Returns True, when the pollen data for the date of date has
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already been sent to jid.
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'''
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if not jid in self._dates_notified:
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return False
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return date in self._dates_notified[jid]
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def _set_dates_notified(self, jid, new_dates):
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'''
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Marks a date as being sent to a user. Also ensures that
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there are at maximum 7 days in this list
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'''
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if not jid in self._dates_notified:
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self._dates_notified[jid] = new_dates
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self._stm.set_data('dates_notified', self._dates_notified)
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return
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self._dates_notified[jid] += new_dates
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self._dates_notified[jid] = self._dates_notified[jid][-7:]
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self._stm.set_data('dates_notified', self._dates_notified)
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def _broadcast_jid(self, jid, filter_allergies=[]):
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'''
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Sends the pollen data to jid. If filter_allergies is set, then
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only the data for the pollen types in filter_allergies will be sent.
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'''
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for plz, data in self._sum.get_subscriptions_for(jid).items():
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allergies = data['data'] if not filter_allergies else filter_allergies
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notified = []
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for date in self._pollen_data[plz]:
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if self._is_notified(jid, date) and not filter_allergies:
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continue
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notified.append(date)
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self.send_message(aioxmpp.JID.fromstr(jid),
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self.notification_body(plz,
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date,
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allergies))
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if notified:
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self._set_dates_notified(jid, notified)
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def _broadcast_all(self):
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for plz in self._pollen_data:
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for subscription in self._sum.get_subscriptions_for_keyword(plz):
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jid = subscription[0]
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data = subscription[1]
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notified = []
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for date in self._pollen_data[plz]:
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if self._is_notified(jid, date):
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continue
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notified.append(date)
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self.send_message(aioxmpp.JID.fromstr(jid),
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self.notification_body(plz,
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date,
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data))
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if notified:
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self._set_dates_notified(jid, notified)
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async def _request_pollen_data(self, loop):
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while True:
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today = datetime.date.today().strftime('%Y-%m-%d')
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for plz in self._sum.get_subscription_keywords():
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req = requests.get(api_query(plz, today))
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data = req.json()['content']
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pollen = data['pollen']
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for date in data['values']:
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if not plz in self._pollen_data:
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self._pollen_data[plz] = {}
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if not date in self._pollen_data[plz]:
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self._pollen_data[plz][date] = {}
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for i in range(len(pollen)):
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type_ = pollen[i]
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self._pollen_data[plz][date][type_] = int(data['values'][date][i])
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# For when we want to just refresh data as someone just subscribed
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if not loop:
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break
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self._broadcast_all()
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await asyncio.sleep(self._sleep_duration)
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async def _subscribe(self, cmd, msg):
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if len(cmd) != 3:
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self.send_message(msg.from_, 'Verwendung: pollen add <PLZ> <Allergen>')
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return
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plz = cmd[1]
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allergy = cmd[2]
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jid = str(msg.from_.bare())
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if self._sum.is_subscribed_to_data(jid, plz, allergy):
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self.send_message(msg.from_, 'Du hast das schon aboniert')
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return
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self._sum.append_data_for_subscription(jid, plz, allergy)
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self.send_message(msg.from_, 'OK')
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# Just some bandwidth saving measure
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if plz not in self._pollen_data:
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await self._request_pollen_data(False)
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self._broadcast_jid(jid, [allergy])
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async def _unsubscribe(self, cmd, msg):
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if len(cmd) != 3:
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self.send_message(msg.from_, 'Verwendung: pollen remove <PLZ> <Allergen>')
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return
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plz = cmd[1]
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allergy = cmd[2]
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jid = str(msg.from_.bare())
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if not self._sum.is_subscribed_to_data(jid, plz, allergy):
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self.send_message(msg.from_, 'Du hast das nicht aboniert')
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return
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self._sum.remove_data_for_subscription(str(msg.from_.bare()), plz, allergy)
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self.send_message(msg.from_, 'OK')
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async def _help(self, cmd, msg):
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body = '''Verfügbare Befehle:
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pollen add <PLZ> <Typ>
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pollen remove <PLZ> <Typ>
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pollen hilfe
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Pollentypen: Ambrosia, Ampfer, Beifuß, Birke, Buche, Eiche, Erle, Esche, Gräser, Hasel, Pappel, Roggen, Ulme, Wegerich, Weide, Alle
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'''
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self.send_message(msg.from_, body)
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def get_instance(base, **kwargs):
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return PollenModule.get_instance(base, **kwargs)
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