#!/usr/bin/env python
# vim: set ts=4 sw=4 sts=4 et :
import markdown
import collections
from feedgen.feed import FeedGenerator
from dateutil import tz
import os
import datetime
import stat

fg = FeedGenerator()
url = "https://ouferr.at"
fg.id(url)
fg.description("Fansub per Wonder Egg Priority")
fg.title("Ou ferrat subs")
fg.author(name="Ou Ferrat")
fg.link(href=url+'/', rel='alternate')
fg.link(href=url+'/atom.xml', rel='self')
fg.language("ca")
fg.updated(datetime.datetime.now(tz.tzlocal()))
doc = ""
with open("header.html") as f:
    header = f.read()
with open("postfooter.html") as f:
    postfooter = f.read()

doc += header

for i in reversed(range(100)):
    fn = f"{str(i).zfill(2)}.md"
    #print(fn)
    try:
        with open(fn) as f:
            entry = f.read()
    except FileNotFoundError:
        continue
    head, body = entry.split("\n---\n\n", 1)
    head = head.split("\n")
    head = {k.strip(): v.strip() for k, v in [l.split(":", 1) for l in head]}
    head = collections.defaultdict(lambda: "", head)
    body = markdown.markdown(body)
    html_fn = f"{str(i).zfill(2)}.html"
    html = ("<article>\n" +
            "<header>\n" +
            f"<h2><a href='/{html_fn}'>{head['title']}</a></h2>\n" +
            f"<time class='date'>{head['date']}</time>\n" +
            "</header>\n" +
            body +
            "\n</article>\n")
    doc += html
    with open(html_fn, "w") as f:
        f.write(header+html+postfooter)
    fe = fg.add_entry(order='append')
    fe.id(url+'/'+html_fn)
    fe.title(head['title'].replace('<br>', '—'))
    fe.content(html, type="html")
    try: # crashing because of an invalid date would be sad
        dt = datetime.datetime.fromisoformat(head['date']+":00+01:00")
        fe.published(dt)
        stats = os.stat(fn)
        updated = datetime.datetime.fromtimestamp(stats[stat.ST_MTIME],
                                                  tz.tzlocal())
        fe.updated(updated)
    except ValueError as e:
        print("error with date", e, head['date'])
        pass

fg.rss_file('rss.xml')
fg.atom_file("atom.xml")
with open("index.html", "w") as f:
    f.write(doc)