#!/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

RSS_FEED = feedparser.parse(FEED_URL)
RSS_ENTRY = RSS_FEED.entries[0]

# Function to build the toot, send it and update the 'last_toot.txt' and 'last_post.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()

    # Output a response
    print("New toot sent from the foo-bar RSS feed!")

# Find the latest RSS entry
latest_entry = RSS_ENTRY.id

# Find the latest published date
published = RSS_ENTRY.published

# Find the 'last_toot' sent
with open(Path(FILE_PATH) / "last_toot.txt") as last_toot:
    last_toot = last_toot.read()

# If 'latest_entry' does not equal 'last_toot' then send a new toot based on 'latest_entry'
if latest_entry != last_toot:
    send_toot()

elif latest_entry == last_toot:
    # Output a response
    print("Nothing new to add from the foo-bar RSS feed!")