#!/usr/bin/env python3
import logging
from typing import Callable, Dict, Iterable, List, Set
import praw # type: ignore
import file_writer
import grab_bag
import page_builder
import profanity_filter
import renderer
import kiosk_secrets as secrets
logger = logging.getLogger(__file__)
class reddit_renderer(renderer.abstaining_renderer):
"""A renderer to pull text content from reddit."""
def __init__(
self,
name_to_timeout_dict: Dict[str, int],
subreddit_list: List[str],
*,
min_votes: int = 20,
font_size: int = 24,
additional_filters: Iterable[Callable[[str], bool]] = [],
):
super().__init__(name_to_timeout_dict)
self.subreddit_list = subreddit_list
self.praw = praw.Reddit(
client_id=secrets.reddit_client_id,
client_secret=secrets.reddit_client_secret,
user_agent=secrets.reddit_user_agent,
)
self.min_votes = min_votes
self.font_size = font_size
self.messages = grab_bag.grab_bag()
self.filters: List[Callable[..., bool]] = [
profanity_filter.ProfanityFilter().contains_bad_word
]
self.filters.extend(additional_filters)
self.deduper: Set[str] = set()
def periodic_render(self, key: str) -> bool:
logger.debug('called for "%s"' % key)
if key == "Scrape":
return self.scrape_reddit()
elif key == "Shuffle":
return self.shuffle_messages()
else:
raise Exception("Unexpected operation")
def append_message(self, messages: List[str]) -> None:
for msg in messages:
title = str(msg.title)
if title in self.deduper:
continue
filtered = ""
for filt in self.filters:
if filt(title) is True:
filtered = filt.__name__
break
if filtered != "":
logger.info(
f'Filter {filtered} struck down "{title}"'
)
continue
if msg.ups < self.min_votes:
logger.debug(
f'"{title}" doesn\'t have enough upvotes to be interesting'
)
continue
self.deduper.add(title)
content = f"{msg.ups}"
if (
msg.thumbnail != "self"
and msg.thumbnail != "default"
and msg.thumbnail != ""
):
content = f''
self.messages.add(
f"""
{content} |
{title} ({msg.author}) |