import re
import os
import gzip
import glob
import json
import click
from util import *

PDF_DIR = 'datasets/s2/pdf'

@click.command()
def pdf_report_first_pages():
  rows = []
  for fn in glob.iglob('{}/**/*.txt'.format(PDF_DIR), recursive=True):
    row = process_paper(fn)
    print(row)
    rows.append(row)
  write_report('reports/first_pages.html', title='First pages', keys=None, rows=rows)
  print("Wrote {} rows".format(len(rows)))

def process_paper(fn):
  paper_id = fn.replace(PDF_DIR, '').split('/')[2]
  paper = load_paper(paper_id)
  if paper is None:
    print("{} no paper found!".format(paper_id))
    return None
  with open(fn, 'r') as f:
    lines = []
    emails = []
    authors = [ (a[0], a[1], a[1].lower(),) for a in paper.authors ]
    journal = paper.journal.lower()
    found_authors = []
    for line in f.readlines():
      l = line.lower()
      if 'abstract' in l:
        break
      if len(line) < 3:
        continue
      if journal and journal in l:
        continue
      if '@' in line:
        # print('email {}'.format(line))
        emails.append(line)
        continue
      names = [s.strip() for s in re.split(',| and ', l)]
      was_found = False
      for name in names:
        found = find_authors(authors, name)
        if found:
          was_found = True
          # print("found {}".format(found[1]))
          if found[0]:
            found_authors.append(found)
      if was_found:
        # lines.append(NameLine(line))
        continue
      if 'university' in l or 'universiteit' in l or 'research center' in l:
        lines.append(BoldLine(line))
        continue
      lines.append(line)
    return [
      paper_id,
      lines,
      found_authors,
      emails,
    ]

class NameLine(object):
  def __init__(self, s):
    self.s = s.strip()
  def __str__(self):
    return '<span class="name">' + self.s + '</span>'

class BoldLine(object):
  def __init__(self, s):
    self.s = s.strip()
  def __str__(self):
    return '<b>' + self.s + '</b>'

def find_authors(authors, line):
  for a in authors:
    if a[2] in line:
      return a
  return None

def paper_path(paper_id):
  return '{}/{}/{}'.format(DATA_DIR, paper_id[0:2], paper_id)
  
if __name__ == '__main__':
  pdf_report_first_pages()