#!/usr/bin/env python3

from datetime import datetime
import json
import os
import sys

import feedparser
import requests

channel = os.getenv("DISCORD_CHANNEL")
token = os.getenv("DISCORD_TOKEN")
cardiparty_ping = os.getenv("DISCORD_CARDIPARTY_PING")

# get the latest cardiparty with image as enclosure
f = feedparser.parse("https://newcardigan.org/category/cardiparties/?feed=cardipartyfeed")
first = f.entries[0]
# check whether we have already seen this entry
with open("latest_post.txt", "r+") as f:
    guid = f.read().strip()
    f.close()

if guid != first.guid:
    # update the guid
    with open("latest_post.txt", "w+") as f:
        f.write(first.guid)
        f.close()

    api_response = sys.stdin.read() # read the API call output that was piped in
    api_data = json.loads(api_response)[0]

    title = api_data["title"]
    city = api_data["address.city"]
    start_date = api_data["start_date"]
    summary = api_data["summary"]
    start_date = datetime.fromisoformat(start_date).astimezone().strftime(
                    "%I:%M%p %a %d %b %Y"
                    ).strip("0") # remove time zero padding if any

    content = f"[<:newCardigan:1280097925149626419> **{title}**]({first.link})\n_{city}_\n_{start_date}_\n\n{summary}\n\n<@&{cardiparty_ping}>"
    embeds = [{
        "title": "Find out more and register!",
        "url": first.link,
        "color": 16741516,
        "image": {
            "url": first.enclosures[0].href
            }
        }]

    headers = {'user-agent': 'cardiParty-discord-bot/1.0.0'}
    url = f"https://discord.com/api/webhooks/{channel}/{token}"
    payload = {
        "thread_name": f"{first.title} | {title}",
        "content": content,
        "embeds": embeds,
        "allowed_mentions": { "roles": [cardiparty_ping] }
    }

    r = requests.post(url, json=payload, headers=headers)
    r.raise_for_status() # if we got a 4xx response this will log it out