def process_karma(message: Message, message_id: int, db_session: Session,
timeout: int):
reply = ""
# Parse the message for karma modifications
karma_items = parse_message_content(message.content)
transactions = make_transactions(karma_items, message)
transactions = apply_blacklist(transactions, db_session)
# If no karma'd items, just return
if not transactions:
return reply
# TODO: Protect from byte-limit length chars
# Get karma-ing user
user = db_session.query(User).filter(
User.user_uid == message.author.id).first()
# Get whether the channel is on mini karma or not
channel = (db_session.query(MiniKarmaChannel).filter(
MiniKarmaChannel.channel == message.channel.id).one_or_none())
if channel is None:
karma_mode = MiniKarmaMode.Normal
else:
karma_mode = MiniKarmaMode.Mini
def own_karma_error(topic):
if karma_mode == MiniKarmaMode.Normal:
return f' • Could not change "{topic}" because you cannot change your own karma! :angry:'
else:
return f'could not change "**{topic}**" (own name)'
def internal_error(topic):
if karma_mode == MiniKarmaMode.Normal:
return f' • Could not create "{topic}" due to an internal error.'
else:
return f'could not change "**{topic}**" (internal error)'
def cooldown_error(topic, td):
# Tell the user that the item is on cooldown
if td.seconds < 60:
seconds_plural = f"second{'s' if td.seconds != 1 else ''}"
duration = f"{td.seconds} {seconds_plural}"
else:
mins = td.seconds // 60
mins_plural = f"minute{'s' if mins != 1 else ''}"
duration = f"{mins} {mins_plural}"
if karma_mode == MiniKarmaMode.Normal:
return f' • Could not change "{topic}" since it is still on cooldown (last altered {duration} ago).\n'
else:
return (
f'could not change "**{topic}**" (cooldown, last edit {duration} ago)'
)
def success_item(tr: KarmaTransaction):
# Give some sass if someone is trying to downvote the bot
if (tr.karma_item.topic.casefold() == "apollo"
and tr.karma_item.operation.value < 0):
apollo_response = ":wink:"
else:
apollo_response = ""
op = str(tr.karma_item.operation)
# Build the karma item string
if tr.karma_item.reason:
if karma_mode == MiniKarmaMode.Normal:
if tr.self_karma:
return f" • **{truncated_name}** (new score is {karma_change.score}) and your reason has been recorded. *Fool!* that's less karma to you. :smiling_imp:"
else:
return f" • **{truncated_name}** (new score is {karma_change.score}) and your reason has been recorded. {apollo_response}"
else:
return f"**{truncated_name}**{op} (now {karma_change.score}, reason recorded)"
else:
if karma_mode == MiniKarmaMode.Normal:
if tr.self_karma:
return f" • **{truncated_name}** (new score is {karma_change.score}). *Fool!* that's less karma to you. :smiling_imp:"
else:
return f" • **{truncated_name}** (new score is {karma_change.score}). {apollo_response}"
else:
return f"**{truncated_name}**{op} (now {karma_change.score})"
# Start preparing the reply string
if len(transactions) > 1:
transaction_plural = "s"
else:
transaction_plural = ""
items = []
errors = []
# Iterate over the transactions to write them to the database
for transaction in transactions:
# Truncate the topic safely so we 2000 char karmas can be used
truncated_name = ((transaction.karma_item.topic[300:] +
".. (truncated to 300 chars)")
if len(transaction.karma_item.topic) > 300 else
transaction.karma_item.topic)
# Catch any self-karma transactions early
if transaction.self_karma and transaction.karma_item.operation.value > -1:
errors.append(own_karma_error(truncated_name))
continue
# Get the karma item from the database if it exists
karma_item = (db_session.query(Karma).filter(
func.lower(Karma.name) == func.lower(
transaction.karma_item.topic)).one_or_none())
# Update or create the karma item
if not karma_item:
karma_item = Karma(name=transaction.karma_item.topic)
db_session.add(karma_item)
try:
db_session.commit()
except (ScalarListException, SQLAlchemyError) as e:
db_session.rollback()
logging.error(e)
errors.append(internal_error(truncated_name))
continue
# Get the last change (or none if there was none)
last_change = (db_session.query(KarmaChange).filter(
KarmaChange.karma_id == karma_item.id).order_by(
desc(KarmaChange.created_at)).first())
if not last_change:
# If the bot is being downvoted then the karma can only go up
if transaction.karma_item.topic.casefold() == "apollo":
new_score = abs(transaction.karma_item.operation.value)
else:
new_score = transaction.karma_item.operation.value
karma_change = KarmaChange(
karma_id=karma_item.id,
user_id=user.id,
message_id=message_id,
reason=transaction.karma_item.reason,
change=new_score,
score=new_score,
created_at=datetime.utcnow(),
)
db_session.add(karma_change)
try:
db_session.commit()
except (ScalarListException, SQLAlchemyError) as e:
db_session.rollback()
logging.error(e)
errors.append(internal_error(truncated_name))
continue
else:
time_delta = datetime.utcnow() - last_change
if is_in_cooldown(last_change, timeout):
errors.append(cooldown_error(truncated_name, time_delta))
continue
# If the bot is being downvoted then the karma can only go up
if transaction.karma_item.topic.casefold() == "apollo":
new_score = last_change.score + abs(
transaction.karma_item.operation.value)
else:
new_score = last_change.score + transaction.karma_item.operation.value
karma_change = KarmaChange(
karma_id=karma_item.id,
user_id=user.id,
message_id=message_id,
reasons=transaction.karma_item.reason,
score=new_score,
change=(new_score - last_change.score),
created_at=datetime.utcnow(),
)
db_session.add(karma_change)
try:
db_session.commit()
except (ScalarListException, SQLAlchemyError) as e:
db_session.rollback()
logging.error(e)
errors.append(internal_error(truncated_name))
karma_change = KarmaChange(
karma_id=karma_item.id,
user_id=user.id,
message_id=message_id,
reason=transaction.karma_item.reason,
score=new_score,
change=(new_score - last_change.score),
created_at=datetime.utcnow(),
)
db_session.add(karma_change)
try:
db_session.commit()
except (ScalarListException, SQLAlchemyError) as e:
db_session.rollback()
logging.error(e)
errors.append(internal_error(truncated_name))
continue
else:
errors.append(cooldown_error(truncated_name, time_delta))
continue
# Update karma counts
if transaction.karma_item.operation.value == 0:
karma_item.neutrals = karma_item.neutrals + 1
elif transaction.karma_item.operation.value == 1:
karma_item.pluses = karma_item.pluses + 1
elif transaction.karma_item.operation.value == -1:
# Make sure the changed operation is updated
if transaction.karma_item.topic.casefold() == "apollo":
karma_item.pluses = karma_item.pluses + 1
else:
karma_item.minuses = karma_item.minuses + 1
items.append(success_item(transaction))
# Get the name, either from discord or irc
author_display = get_name_string(message)
# Construct the reply string in totality
# If you have error(s) and no items processed successfully
if karma_mode == MiniKarmaMode.Normal:
item_str = "\n".join(items)
error_str = "\n".join(errors)
if not item_str and error_str:
reply = f"Sorry {author_display}, I couldn't karma the requested item{transaction_plural} because of the following problem{transaction_plural}:\n\n{error_str}"
# If you have items processed successfully but some errors too
elif item_str and error_str:
reply = f"Thanks {author_display}, I have made changes to the following item(s) karma:\n\n{item_str}\n\nThere were some issues with the following item(s), too:\n\n{error_str}"
# If all items were processed successfully
else:
reply = f"Thanks {author_display}, I have made changes to the following karma item{transaction_plural}:\n\n{item_str}"
else:
item_str = " ".join(items)
error_str = " ".join(errors)
reply = " ".join(filter(None, ["Changes:", item_str, error_str]))
# Commit any changes (in case of any DB inconsistencies)
try:
db_session.commit()
except (ScalarListException, SQLAlchemyError) as e:
logging.error(e)
db_session.rollback()
return reply.rstrip()
def test_make_transactions(items, message, expected):
actual = make_transactions(items, message)
assert actual == expected