#!/usr/bin/env python3

"""Deletes old tweets."""
__author__ = "Tobias Schmidl"
__copyright__ = "Copyright 2021 Tobias Schmidl"
__license__ = "MIT"
__version__ = "0.1"

if __name__ == "__main__":
    import os
    from datetime import datetime, timedelta

    import toml
    import tweepy  # type: ignore
    from xdg import xdg_config_home

    # options
    twitter_config = toml.load(os.path.join(xdg_config_home(), "twitter.toml"))
    test_mode = twitter_config["test_mode"] if "test_mode" in twitter_config else False
    verbose = twitter_config["verbose"] if "verbose" in twitter_config else False
    days_to_keep = twitter_config["days_to_keep"] if "days_to_keep" in twitter_config else 30
    tweets_to_save = twitter_config["tweets_to_save"] if "tweets_to_save" in twitter_config else []
    secrets = twitter_config["secrets"]

    # auth and api
    auth = tweepy.OAuthHandler(secrets['api_key'], secrets['api_key_secret'])
    auth.set_access_token(secrets['access_token'], secrets['access_token_secret'])
    api = tweepy.API(auth)
    # set cutoff date, use utc to match twitter
    cutoff_date = datetime.utcnow() - timedelta(days=days_to_keep)

    # get all timeline tweets
    print("Retrieving timeline tweets")
    timeline = tweepy.Cursor(api.user_timeline).items()
    deletion_count = 0  # pylint:disable=C0103
    ignored_count = 0  # pylint:disable=C0103

    for tweet in timeline:
        # where tweets are not in save list and older than cutoff date
        if tweet.id not in tweets_to_save and tweet.created_at < cutoff_date:
            if verbose:
                print("Deleting %d: [%s] %s" % (tweet.id, tweet.created_at, tweet.text))
            if not test_mode:
                api.destroy_status(tweet.id)

            deletion_count += 1
        else:
            ignored_count += 1

    print("Deleted %d tweets, ignored %d" % (deletion_count, ignored_count))