Limnoria/plugins/Poll/plugin.py
Valentin Lorentz 63eb6672ea Revert generic 'The Limnoria Contributors' in copyright notices
This commit reverts db7ef3f025
(though it keeps the year updates)

After discussion with several people, it seems better to mention
copyright owners explicitly. eg. https://reuse.software/faq/#vcs-copyright
explains the issue of using VCSs to track copyright.

As db7ef3f025 only replaced mentions
of my name with 'The Limnoria Contributors', this commit only needs
to undo that + add one person who contributed to setup.py.
2021-10-17 09:57:55 +02:00

226 lines
7.6 KiB
Python

###
# Copyright (c) 2021, Valentin Lorentz
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice,
# this list of conditions, and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions, and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# * Neither the name of the author of this software nor the name of
# contributors to this software may be used to endorse or promote products
# derived from this software without specific prior written consent.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
###
import collections
import re
from supybot import utils, plugins, ircdb, ircutils, callbacks
from supybot.commands import *
try:
from supybot.i18n import PluginInternationalization
_ = PluginInternationalization("Poll")
except ImportError:
# Placeholder that allows to run the plugin on a bot
# without the i18n module
_ = lambda x: x
Poll = collections.namedtuple("Poll", "question answers votes open")
class Poll_(callbacks.Plugin):
"""Provides a simple way to vote on answers to a question
For example, this creates a poll::
<admin> @poll add "Is this a test?" "Yes" "No" "Maybe"
<bot> The operation succeeded. Poll # 42 created.
Creates a poll that can be voted on in this way::
<citizen1> @vote 42 Yes
<citizen2> @vote 42 No
<citizen3> @vote 42 No
And results::
<admin> @poll results
<bot> 2 votes for No, 1 vote for Yes, and 0 votes for Maybe
Longer answers are possible, and voters only need to use the first
word of each answer to vote. For example, this creates a poll that
can be voted on in the same way::
<admin> @poll add "Is this a test?" "Yes totally" "No no no" "Maybe"
<bot> The operation succeeded. Poll # 43 created.
You can also add a number or letter at the beginning of each question to
make it easier::
<admin> @poll add "Who is the best captain?" "1 James T Kirk" "2 Jean-Luc Picard" "3 Benjamin Sisko" "4 Kathryn Janeway"
<bot> The operation succeeded. Poll # 44 created.
<trekkie1> @vote 42 1
<trekkie2> @vote 42 4
<trekkie3> @vote 42 4
"""
def __init__(self, irc):
super().__init__(irc)
# {(network, channel): {id: Poll}}
self._polls = collections.defaultdict(dict)
def name(self):
return "Poll"
def _checkManageCapability(self, irc, msg, channel):
# Copy-pasted from Topic
capabilities = self.registryValue(
"requireManageCapability", channel, irc.network
)
for capability in re.split(r"\s*;\s*", capabilities):
if capability.startswith("channel,"):
capability = ircdb.makeChannelCapability(
channel, capability[8:]
)
if capability and ircdb.checkCapability(msg.prefix, capability):
return
irc.errorNoCapability(capabilities, Raise=True)
def _getPoll(self, irc, channel, poll_id):
poll = self._polls[(irc.network, channel)].get(poll_id)
if poll is None:
irc.error(
_("A poll with this ID does not exist in this channel."),
Raise=True,
)
return poll
@wrap(["channel", "something", many("something")])
def add(self, irc, msg, args, channel, question, answers):
"""[<channel>] <question> <answer1> [<answer2> [<answer3> [...]]]
Creates a new poll with the specified <question> and answers
on the <channel>.
The first word of each answer is used as its id to vote,
so each answer should start with a different word.
<channel> is only necessary if this command is run in private,
and defaults to the current channel otherwise."""
self._checkManageCapability(irc, msg, channel)
poll_id = max(self._polls[(irc.network, channel)], default=0) + 1
answers = [(answer.split()[0], answer) for answer in answers]
answer_id_counts = collections.Counter(id_ for (id_, _) in answers).items()
duplicate_answer_ids = [
answer_id for (answer_id, count) in answer_id_counts if count > 1
]
if duplicate_answer_ids:
irc.error(
format(
_("Duplicate answer identifier(s): %L"), duplicate_answer_ids
),
Raise=True,
)
self._polls[(irc.network, channel)][poll_id] = Poll(
question=question, answers=dict(answers), votes={}, open=True
)
irc.replySuccess(_("Poll # %d created.") % poll_id)
@wrap(["channel", "positiveInt"])
def close(self, irc, msg, args, channel, poll_id):
"""[<channel>] <poll_id>
Closes the specified poll."""
self._checkManageCapability(irc, msg, channel)
poll = self._getPoll(irc, channel, poll_id)
if not poll.open:
irc.error(_("This poll was already closed."), Raise=True)
poll = Poll(
question=poll.question,
answers=poll.answers,
votes=poll.votes,
open=False,
)
self._polls[(irc.network, channel)][poll_id] = poll
irc.replySuccess()
@wrap(["channel", "positiveInt", "somethingWithoutSpaces"])
def vote(self, irc, msg, args, channel, poll_id, answer_id):
"""[<channel>] <poll_id> <answer_id>
Registers your vote on the poll <poll_id> as being the answer
identified by <answer_id> (which is the first word of each possible
answer)."""
poll = self._getPoll(irc, channel, poll_id)
if not poll.open:
irc.error(_("This poll is closed."), Raise=True)
if msg.nick in poll.votes:
irc.error(_("You already voted on this poll."), Raise=True)
if answer_id not in poll.answers:
irc.error(
format(
_("Invalid answer ID. Valid answers are: %L"),
poll.answers,
),
Raise=True,
)
poll.votes[msg.nick] = answer_id
irc.replySuccess()
@wrap(["channel", "positiveInt"])
def results(self, irc, msg, args, channel, poll_id):
"""[<channel>] <poll_id>
Returns the results of the specified poll."""
poll = self._getPoll(irc, channel, poll_id)
counts = collections.Counter(poll.votes.values())
# Add answers with 0 votes
counts.update({answer_id: 0 for answer_id in poll.answers})
results = [
format(_("%n for %s"), (v, "vote"), k)
for (k, v) in counts.most_common()
]
irc.replies(results)
Class = Poll_