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#!/usr/bin/python

import os
import glob
import mistune
from jinja2 import Environment, FileSystemLoader, select_autoescape

public_path = "../site/public"
content_path = "../site/content"
template_path = "../site/templates"

env = Environment(
  loader=FileSystemLoader(template_path),
  autoescape=select_autoescape([])
)

renderer = mistune.Renderer(escape=False)
markdown = mistune.Markdown(renderer=renderer)

def wide_section(line):
  return "<section class='wide'>" + markdown(line) + "</section>"

def normal_section(lines):
  if len(lines):
    return "<section>" + markdown("\n\n".join(lines)) + "</section>"
  return ""

def build_file(fn):
  print(fn)
  output_path = os.path.dirname(fn).replace(content_path, public_path)
  output_fn = os.path.join(output_path, "index.html")
  with open(fn, "r") as file:
    sections = file.read().split("\n\n")
  metadata = {}
  for line in sections[0].split("\n"):
    print(line)
    key, value = line.split(': ', 1)
    metadata[key.lower()] = value

  groups = []
  current_group = []
  for section in sections[1:]:
    if '![wide]' in section:
      groups.append(normal_section(current_group))
      groups.append(wide_section(section))
      current_group = []
    else:
      current_group.append(section)
  groups.append(normal_section(current_group))
  content = "".join(groups)

  if 'blog/' in fn:
    template = env.get_template("blog.html")
  else:
    template = env.get_template("page.html")
  html = template.render(metadata=metadata, content=content)

  os.makedirs(output_path, exist_ok=True)
  with open(output_fn, "w") as file:
    file.write(html)

def build_site():
  print("Building...")
  for fn in glob.iglob(os.path.join(content_path, "**/index.txt"), recursive=True):
    print(fn)
    build_file(fn)

if __name__ == '__main__':
  build_site()