mirror of
https://github.com/developersIndia/deviras.git
synced 2024-11-08 13:42:34 +05:30
commit
31982c0c3f
253
job_thread/main.py
Normal file
253
job_thread/main.py
Normal file
@ -0,0 +1,253 @@
|
||||
import json
|
||||
import logging
|
||||
import re
|
||||
from copy import deepcopy
|
||||
from dataclasses import dataclass
|
||||
from os import environ, fsync
|
||||
from time import strftime, time
|
||||
|
||||
import feedparser
|
||||
import praw
|
||||
|
||||
SECONDS_IN_WEEK = 60 * 60 * 24 * 7
|
||||
|
||||
# Date Month, Year
|
||||
STRFTIME_FORMAT = "%d %B, %Y"
|
||||
|
||||
class Config:
|
||||
DB_PATH = "db.json"
|
||||
SUBREDDIT = "developersindia"
|
||||
|
||||
POST_FLAIR = "Hiring"
|
||||
POST_TITLE = f"Don't Miss Out on These Job Opportunities | Weekly Job Openings Thread | {strftime(STRFTIME_FORMAT)}"
|
||||
POST_TEXT = """\
|
||||
This thread has all the latest job openings that haven't been posted on previous weekly threads.
|
||||
|
||||
If you have a job opening that you'd like to share with the community, you can post it using this link:- https://developersindia.in/post-a-job/
|
||||
|
||||
For all the available job openings, check out the Job Board at:- https://developersindia.in/job-board/
|
||||
|
||||
Stay tuned for updates on the latest job openings, and apply for the ones that interest you. Wishing you the best of luck in your job search!\
|
||||
"""
|
||||
|
||||
CLIENT_ID = environ["REDDIT_CLIENT_ID"]
|
||||
CLIENT_SECRET = environ["REDDIT_CLIENT_SECRET"]
|
||||
REDDIT_PASSWORD = environ["REDDIT_PASSWORD"]
|
||||
USERNAME = environ["REDDIT_USERNAME"]
|
||||
USER_AGENT = f"u/{USERNAME} Job Board"
|
||||
FEED_URL = "https://developersindia.in/?feed=job_feed"
|
||||
|
||||
|
||||
@dataclass
|
||||
class Post:
|
||||
post_id: str
|
||||
epoch: int
|
||||
|
||||
|
||||
def dict_raise_or_set(d, key, value):
|
||||
if d.get(key) is not None:
|
||||
raise ValueError(f"Key {key} already present in dictionary")
|
||||
|
||||
d[key] = value
|
||||
|
||||
|
||||
class DB:
|
||||
POSTS = "postid_epoch"
|
||||
COMMENTS = "jobid_commentid"
|
||||
|
||||
def __init__(self, db_path):
|
||||
try:
|
||||
self._fp = open(db_path, "r+")
|
||||
self._db = json.loads(self._fp.read() or "{}")
|
||||
except FileNotFoundError:
|
||||
self._fp = open(db_path, "w")
|
||||
self._db = {}
|
||||
|
||||
self._copy = None
|
||||
|
||||
self._create()
|
||||
|
||||
def __enter__(self):
|
||||
self._copy = deepcopy(self._db)
|
||||
|
||||
return self
|
||||
|
||||
def __exit__(self, exc_type, exc_val, exc_tb):
|
||||
# We re-write the DB on each transaction as we cannot guarantee "atomicity"
|
||||
# when dealing with external APIs. Eg, we can locally roll back a transaction
|
||||
# inserting multiple posts into the DB in case of an exception, but the
|
||||
# posts obviously won't be deleted on the reddit side. So we write
|
||||
# as much as possible incrementally to prevent losing track of already created
|
||||
# posts, preventing their re-creation server side in case of a crash.
|
||||
if exc_type:
|
||||
self._db = self._copy
|
||||
# If a change was actually made
|
||||
elif self._db != self._copy:
|
||||
self._fp.seek(0)
|
||||
self._fp.write(json.dumps(self._db, indent=4))
|
||||
self._fp.truncate() # Trim the file to the desired size
|
||||
fsync(self._fp)
|
||||
|
||||
self._copy = None
|
||||
|
||||
def _create(self):
|
||||
with self:
|
||||
self._db.setdefault(DB.POSTS, {})
|
||||
self._db.setdefault(DB.COMMENTS, {})
|
||||
|
||||
def get_latest_post(self) -> Post | None:
|
||||
# {"id": 1234, "id2": "5678"} -> ("id2", "5678") (Descending)
|
||||
try:
|
||||
result = sorted(
|
||||
self._db[DB.POSTS].items(),
|
||||
key=lambda item: item[1],
|
||||
reverse=True,
|
||||
)[0]
|
||||
except IndexError:
|
||||
return None
|
||||
|
||||
return Post(post_id=result[0], epoch=result[1])
|
||||
|
||||
def insert_post(self, post: Post):
|
||||
with self:
|
||||
dict_raise_or_set(self._db[DB.POSTS], post.post_id, post.epoch)
|
||||
|
||||
def insert_comment(self, feed_job_id: str, comment_id: str):
|
||||
with self:
|
||||
dict_raise_or_set(self._db[DB.COMMENTS], feed_job_id, comment_id)
|
||||
|
||||
def is_job_posted(self, feed_job_id: str):
|
||||
return self._db[DB.COMMENTS].get(feed_job_id) is not None
|
||||
|
||||
|
||||
@dataclass
|
||||
class Job:
|
||||
post_id: str # Used for deduplication
|
||||
title: str
|
||||
company_name: str
|
||||
location: str
|
||||
job_type: str
|
||||
salary: str
|
||||
summary: str
|
||||
permalink: str
|
||||
|
||||
|
||||
def strip_html(text):
|
||||
return re.sub("<[^<]+?>", "", text)
|
||||
|
||||
|
||||
def get_job_entries(feed_url):
|
||||
entries = feedparser.parse(feed_url).entries
|
||||
|
||||
return [
|
||||
Job(
|
||||
post_id=entry["post-id"],
|
||||
title=entry["title"],
|
||||
company_name=entry["job_listing_company"],
|
||||
location=entry.get("job_listing_location", "N/A"),
|
||||
job_type=entry["job_listing_job_type"],
|
||||
salary=entry.get("job_listing_salary", "N/A"),
|
||||
summary=strip_html(entry["summary"]),
|
||||
permalink=entry["link"],
|
||||
)
|
||||
for entry in entries
|
||||
]
|
||||
|
||||
|
||||
def should_create_new_post(latest_post: Post) -> bool:
|
||||
if latest_post is not None:
|
||||
return (time() - latest_post.epoch) >= SECONDS_IN_WEEK
|
||||
|
||||
return True
|
||||
|
||||
|
||||
def create_job_post(subreddit) -> Post:
|
||||
# https://old.reddit.com/r/redditdev/comments/ovte4q/praw_flair_a_post/h7doqmd/?context=3
|
||||
flair = next(
|
||||
filter(
|
||||
lambda flair: flair["flair_text"] == Config.POST_FLAIR,
|
||||
subreddit.flair.link_templates.user_selectable(),
|
||||
)
|
||||
)
|
||||
|
||||
submission = subreddit.submit(
|
||||
Config.POST_TITLE,
|
||||
selftext=Config.POST_TEXT,
|
||||
flair_id=flair["flair_template_id"],
|
||||
)
|
||||
submission.mod.sticky()
|
||||
|
||||
return Post(post_id=submission.id, epoch=submission.created_utc)
|
||||
|
||||
|
||||
def main():
|
||||
logging.root.setLevel(logging.INFO)
|
||||
|
||||
db = DB(Config.DB_PATH)
|
||||
reddit = praw.Reddit(
|
||||
client_id=Config.CLIENT_ID,
|
||||
client_secret=Config.CLIENT_SECRET,
|
||||
password=Config.REDDIT_PASSWORD,
|
||||
user_agent=Config.USER_AGENT,
|
||||
username=Config.USERNAME,
|
||||
)
|
||||
|
||||
subreddit = reddit.subreddit(Config.SUBREDDIT)
|
||||
|
||||
maybe_old_post = db.get_latest_post()
|
||||
|
||||
logging.info(f"Latest post in database {maybe_old_post}")
|
||||
|
||||
if should_create_new_post(maybe_old_post):
|
||||
# Un-stick/pin the old post
|
||||
if maybe_old_post is not None:
|
||||
logging.info(f"Un-pinning old post {maybe_old_post}")
|
||||
|
||||
try:
|
||||
reddit.submission(maybe_old_post.post_id).mod.sticky(
|
||||
state=False
|
||||
)
|
||||
except Exception:
|
||||
logging.warning(f"Failed to un-pin post!", exc_info=True)
|
||||
|
||||
new_post = create_job_post(subreddit)
|
||||
|
||||
logging.info(f"Created new post {new_post}")
|
||||
|
||||
db.insert_post(new_post)
|
||||
|
||||
submission = reddit.submission(db.get_latest_post().post_id)
|
||||
|
||||
logging.info(f"Fetched latest submission {submission.id}")
|
||||
|
||||
for job in get_job_entries(Config.FEED_URL):
|
||||
if db.is_job_posted(job.post_id):
|
||||
logging.warning(
|
||||
f"Ignoring already posted job with post ID {job.post_id}"
|
||||
)
|
||||
continue
|
||||
|
||||
comment_text = f"""\
|
||||
[**{job.title}** - {job.company_name}]({job.permalink})
|
||||
|
||||
**Salary:** {job.salary}
|
||||
|
||||
**Location:** {job.location}
|
||||
|
||||
**Job Type:** {job.job_type}
|
||||
|
||||
### Summary
|
||||
|
||||
{job.summary}\
|
||||
"""
|
||||
|
||||
comment = submission.reply(comment_text)
|
||||
db.insert_comment(job.post_id, comment.id)
|
||||
|
||||
logging.info(
|
||||
f"Posted job with post ID {job.post_id} as reddit comment {comment.id}"
|
||||
)
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
main()
|
Loading…
Reference in New Issue
Block a user