'''
Crudely merges Sphinx API documentaion with Radon, Flake8 & Coverage output

Author: Liam Deacon

Report generation requires:
 - nose
 - coverage
 - lxml
 - flake8-html
 - radon

API documentation:
 - sphinx
'''
from __future__ import print_function
from bs4 import BeautifulSoup as Soup
from json2html import json2html

import os
import shutil
from glob import glob

index = 'build/sphinx/html/index.html'
public = 'build/public'

index_html = Soup(open(index), 'lxml')

for i, link in enumerate(reversed(index_html.findAll('li'))):
    if link.a.span:
        break
links = link

tag = '''
<li><a class="reference internal" href="{0}/index.html"><span class="std std-ref">{1} Report</span></a></li>
'''

reports = ('coverage', 'flake8', 'radon')

for link in reports:
    soup = Soup(tag.format(link, link.capitalize()), 'lxml')
    links.insert_after(soup.html.body.li)

shutil.rmtree(public)
shutil.copytree(os.path.dirname(index), public)

radon = Soup('<p></p>', 'lxml')
for name, radon_metric in (('Raw Metrics', 'raw'),
        ('Code Complexity', 'cc'), ('Maintainability Index', 'mi')):
    with open('build/radon/{}.json'.format(radon_metric)) as f:
        table = json2html.convert(f.read())
        section = Soup('<h1>{}</h1><p>{}</p>'.format(name, table), 'lxml')
        radon.find('p').insert_after(section.html.body)
os.makedirs(os.path.join('build', 'radon'), exist_ok=True)
with open(os.path.join('build', 'radon', 'index.html'), 'w') as f:
    f.write(str(radon).replace('<p></p>', ''))


for d in reports:
    _dir = os.path.join(public, d)
    if os.path.exists(_dir):
        shutil.rmtree(_dir)
    shutil.copytree(os.path.join('build', d), _dir)
print(index_html, file=open(os.path.join(public, 'index.html'), 'w'))