#!/usr/bin/env python3
# generate an rss item

import html
from markdown2 import markdown_path
import sys
import datetime
import os

try:
    mdfile = sys.argv[1]
except IndexError:
    print('error: specify path to markdown file')
    sys.exit(-1)
url =  os.path.splitext(mdfile)[0]
rendered = markdown_path(mdfile, extras=['metadata',
        'fenced-code-blocks', 'header-ids', 'footnotes', 'smarty-pants'])
meta = rendered.metadata
esc = html.escape(rendered)

# time stuff
dt = datetime.datetime.strptime(meta['date'], '%Y-%m-%d').date()
rfc822 = dt.strftime("%a, %d %b %Y %H:%M:%S %z") + '+0000'

item = f"""<item>
      <title>{meta['title']}</title>
      <link>https://icyphox.sh/blog/{url}</link>
      <description>{esc}</description>
      <pubDate>{rfc822}</pubDate>
      <guid>https://icyphox.sh/blog/{url}/</guid>
</item>
"""

print(item)