#!/usr/bin/python

from dotenv import load_dotenv
load_dotenv()

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

import s3
import parser
from paths import *

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

def build_page(fn, research_posts):
  metadata, sections = parser.read_metadata(fn)

  if metadata is None:
    print("{} has no metadata".format(fn))
    return

  print(metadata['url'])

  dirname = os.path.dirname(fn)
  output_path = public_path + metadata['url']
  output_fn = os.path.join(output_path, "index.html")

  if 'research/' in fn:
    template = env.get_template("research.html")
  else:
    template = env.get_template("page.html")

  if 'datasets' in fn:
    s3_path = "{}/{}/{}{}".format(os.getenv('S3_ENDPOINT'), os.getenv('S3_BUCKET'), s3_datasets_path, metadata['path'])
    if 'index.md' in fn:
      s3.sync_directory(dirname, s3_datasets_path, metadata)
  else:
    s3_path = "{}/{}/{}{}".format(os.getenv('S3_ENDPOINT'), os.getenv('S3_BUCKET'), s3_site_path, metadata['path'])
    if 'index.md' in fn and metadata['url'] != '/':
      s3.sync_directory(dirname, s3_site_path, metadata)

  content = parser.parse_markdown(sections, s3_path)

  html = template.render(
    metadata=metadata,
    content=content,
    research_posts=research_posts,
    latest_research_post=research_posts[-1],
  )

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

  print("______")

def build_site():
  research_posts = parser.read_research_post_index()
  for fn in glob.iglob(os.path.join(content_path, "**/*.md"), recursive=True):
    build_page(fn, research_posts)

if __name__ == '__main__':
  build_site()