open-issue-finder

#!/usr/bin/env python3
# -*- coding: utf-8 -*-

# Author: Vlad Doster <mvdoster@gmail.com>
# Date: 2020-06-30 20:03:53
# Last Modified by: Vlad Doster <mvdoster@gmail.com>
# Last Modified time: 2020-07-01 02:07:54

import configparser
import itertools
import logging
import os
import random
import re
import smtplib
import sys
import time
from collections import namedtuple
from multiprocessing.pool import ThreadPool as Pool

import httpx


def gen_query_urls(cfg, ints, lbls):
    logger.debug("Generating Github issue URLs\nInterests: {0}\nLabels: {1}".format(ints, lbls))
    gh_api_query_url = "https://api.github.com/search/issues?q={0}+label:{1}+state:open&sort=created&order=desc"
    try:
        return [
            gh_api_query_url.format(random.choice(ints), random.choice(lbls))
            for _ in itertools.repeat(None, int(cfg["User"]["projects_limit"]))
        ]
    except ValueError:
        sys.exit(logger.error("Invalid project limit value set in config.ini. It should be an integer."))


def get_gh_link(url):
    time.sleep(random.randint(1, 2))
    try:
        r = httpx.get(url)
        r.raise_for_status()
        return random.choice(r.json().get("items")).get("html_url")
    except httpx.HTTPError as e:
        logger.warning("Encountering Github API throttling")
    except Exception as e:
        logger.error("Uh-oh, {0} experienced an unexpected bit flip from a solar flare. {1}".format(sys.argv[0], e))


def multiprocess_links(urls):
    logger.info("Looking high and low for cool projects...")
    return [x for x in Pool(10).imap_unordered(get_gh_link, urls) if x is not None]


def send_email(cfg, links):
    EmailCreds = namedtuple("EmailCreds", ["name", "email", "password"])
    e_c = EmailCreds(name=cfg["User"]["name"], email=cfg["Email"]["address"], password=cfg["Email"]["password"],)
    n_links = len(links)
    if any(credential == "" for credential in list(e_c)):
        logger.warning("One of the Email credentials in config.ini is empty in config.ini. Please reconcile and re-run")
        write_to_file(e_c.name, n_links, links)
    try:
        server = smtplib.SMTP_SSL("smtp.gmail.com", 465)
        server.login(user=e_c.email, password=e_c.password)
        server.sendmail(
            from_addr=e_c.email,
            to_addrs=e_c.email,
            msg="""
            Subject: Potential Contributor\n
            Hi {0},
            We found the following {1} OS projects you might be interested in contributing too.\n
            Links:{2}
            """.format(
                e_c.name, n_links, "".join(["\n{0:>12}. {1}".format(idx, link) for idx, link in enumerate(links, 1)]),
            ),
        )
    except smtplib.SMTPException as e:
        logger.error("Sending email ran into the following issue:\n{0}".format(e))
    server.quit()
    sys.exit(logger.info("Successfully sent list of project to {0}".format(e_c.name)))


def write_to_file(name, n_links, links):
    proj_output = """
        Hi {0},
        We found the following {1} OS projects looking for contributers.\n
        Links:{2}
        """.format(
        name, n_links, "".join(["\n{0:>12}. {1}".format(idx, link) for idx, link in enumerate(links, 1)]),
    )
    open("open-issue-projects.txt", "w").writelines(proj_output).close()
    sys.exit(logger.info(proj_output))


def main():
    logger.info("Starting process...")
    filename = r"config.ini"
    config = configparser.ConfigParser(allow_no_value=True).read(filename)
    interests, labels = list(config._sections.get("Programming Interests").keys()), list(config._sections.get("Issue Labels").keys())
    send_email(config, multiprocess_links(gen_query_urls(cfg=config, ints=interests, lbls=labels)))


if __name__ == "__main__":
    logging.basicConfig(level=logging.INFO, format="[{levelname}] {message}", style="{")
    logger = logging.getLogger()
    main()