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import collections, dataclasses, datetime, re, typing, uuid
from src import IRCBot, IRCServer, utils
MAX_LINES = 64
@dataclasses.dataclass
class BufferLine(object):
sender: str
message: str
action: bool
tags: dict
from_self: bool
method: str
deleted: bool=False
notes: typing.Dict[str, str] = dataclasses.field(
default_factory=dict)
id: str = dataclasses.field(
default_factory=lambda: str(uuid.uuid4()))
timestamp: datetime.datetime = dataclasses.field(
default_factory=utils.datetime.utcnow)
class BufferLineMatch(object):
def __init__(self, line: BufferLine, match: str):
self.line = line
self.match = match
class Buffer(object):
def __init__(self, bot: "IRCBot.Bot", server: "IRCServer.Server"):
self.bot = bot
self.server = server
self._lines = collections.deque(maxlen=MAX_LINES
) # type: typing.Deque[BufferLine]
def add(self, line: BufferLine):
self._lines.appendleft(line)
def get(self, index: int=0, from_self=True, deleted=False
) -> typing.Optional[BufferLine]:
for line in self._lines:
if line.from_self and not from_self:
continue
if line.deleted and not deleted:
continue
return line
return None
def get_all(self, for_user: typing.Optional[str]=None):
if not for_user == None:
for line in self._lines:
if self.server.irc_lower(line.sender) == for_user:
yield line
else:
for line in self._lines:
yield line
def find(self, pattern: typing.Union[str, typing.Pattern[str]],
not_pattern: typing.Union[str, typing.Pattern[str]]=None,
from_self=True, for_user: str=None, deleted=False
) -> typing.Optional[BufferLineMatch]:
if for_user:
for_user = self.server.irc_lower(for_user)
for line in self._lines:
if line.from_self and not from_self:
continue
else:
match = re.search(pattern, line.message)
if match:
if not_pattern and re.search(not_pattern, line.message):
continue
if for_user and not self.server.irc_lower(line.sender
) == for_user:
continue
if line.deleted and not deleted:
continue
return BufferLineMatch(line, match.group(0))
return None
def find_id(self, id: str) -> typing.Optional[BufferLine]:
for line in self._lines:
if line.id == id:
return line
return None
def find_from(self, nickname: str) -> typing.Optional[BufferLine]:
lines = self.find_many_from(nickname, 1)
if lines:
return lines[0]
else:
return None
def find_many_from(self, nickname: str, max: int
) -> typing.List[BufferLine]:
nickname_lower = self.server.irc_lower(nickname)
found_lines = []
for line in self._lines:
if (not line.from_self
and self.server.irc_lower(line.sender) == nickname_lower):
found_lines.append(line)
if len(found_lines) == max:
break
return found_lines
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