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

# A bot that takes an RSS feed and posts to Mastodon
# Parses the latest entry in the RSS feed and if it doesn't match the last toot, sends the latest entry

from secrets import *
from pathlib import Path
import requests
import feedparser
import time

RSS_FEED = feedparser.parse(FEED_URL)

# Function to build the toot, send it and update the 'last_toot.txt' file
def send_toot():

    # Build the authorisation header
    auth = {
        "Authorization" : f"Bearer {MASTODON_TOKEN}"
        }

    # Build the text part of the toot from the chosen 'RSS_ENTRY'
    toot_str = ''
    toot_str += f"{RSS_ENTRY['title']}\n\n"
    toot_str += f"{RSS_ENTRY['description']}\n"
    toot_str += f"\n\n{RSS_ENTRY['link']}\n\n"
    toot_str += f"\n\nThis is an automated post from the #foo-bar RSS feed dated {RSS_ENTRY['published']}\n\n"
    toot_str += f"\n\n#foo #bar #foo-bar\n\n"

    # Build the payload
    payload = {
        "status": toot_str
        }

    # Send toot (to 'MASTODON_STATUS')
    requests.post(MASTODON_STATUS, headers=auth, data=payload)

    # Update the 'last_toot.txt' file with 'latest_entry'
    last_toot = open(Path(FILE_PATH) / "last_toot.txt","w")
    last_toot.write(latest_entry)
    last_toot.close()

    # Update the 'last_post.txt' file with 'published' date
    last_post = open(Path(FILE_PATH) / "last_post.txt","w")
    last_post.write(published)
    last_post.close()

# How many RSS entries are there (-1 as the indexing starts at 0)
count = len(feedparser.parse(FEED_URL)['entries'])-1

# Loop through all of the RSS entries (until it is less than 0, where the indexing started)
print("There are ", count+1, " RSS entries to toot")
while count != -1:
    latest_entry = RSS_FEED.entries[count].id
    # Find the published date
    published = RSS_FEED.entries[count].published
    RSS_ENTRY = RSS_FEED.entries[count]
    print("Tooting - " + RSS_FEED.entries[count].title + " ", count, " toots to go")
    send_toot()
    count = count -1
    time.sleep(180)

# Output a response
print("All done!")