#!/bin/python3

#lumbung.space calendar feed generator
#© 2021 roel roscam abbing gplv3 etc

from ics import Calendar  
import requests
import jinja2
import os
from slugify import slugify
from natural import date
from event_feed_config import calendar_url, output_dir

cal = Calendar(requests.get(calendar_url).text)

env = jinja2.Environment(
    loader=jinja2.FileSystemLoader(os.path.curdir) 
    )

if not os.path.exists(output_dir):
    os.mkdir(output_dir)

template = env.get_template('event_template.md')

existing_posts = os.listdir(output_dir)


# Dates need to be displayed for the various TZs
# 3 PM Kassel, Germany, 4 PM Ramallah/Jerusalem, Palestina (QoF),
# 8 AM Bogota, Colombia (MaMa), 8 PM Jakarta, Indonesia (Gudskul),
# 1 PM (+1day) Wellington, New Zealand (Fafswag), 9 AM Havana, Cuba (Instar).

tzs = [
	  ('Kassel','Europe/Berlin'),
	  ('Bamako', 'Europe/London'),
	  ('Palestine','Asia/Jerusalem'),
	  ('Bogota','America/Bogota'),
	  ('Jakarta','Asia/Jakarta'),
	  ('Makassar','Asia/Makassar'),
	  ('Wellington', 'Pacific/Auckland')
	  ]

for event in list(cal.events):

	localized_begins =[]
	for i in tzs:
		localized_begins.append( #javascript formatting because of string creation from hell
			'__{}__ {}'.format(
				str(i[0]),
				str(event.begin.to(i[1]).format("YYYY-MM-DD HH:mm"))
				)
			)


	event_metadata = {
	'name':event.name,
	'created':event.created.format(),
	'description': event.description,
	'begin': '        '.join(localized_begins), #non-breaking space characters to defeat markdown
	'end': event.end.format(),
	'duration': date.compress(event.duration),
	'location': event.location
	}

	#FIXME: There is no deletion logic
	#FIXME: figure out how to use legible yet unique post names
	#FIXME: An update logic?
	post_dir = os.path.join(output_dir, slugify(event.name)) + '-' + slugify(event.begin.format("YYYY-MM-DD")) 
	if not os.path.exists(post_dir):
		os.mkdir(post_dir)

	with open(os.path.join(post_dir,'index.md'),'w') as f:
		post = template.render(event = event_metadata)
		f.write(post)