#!/usr/bin/python3
import os
import re
import lxml.html
import jinja2
import json
import sys
import requests
from time import sleep
from pprint import pprint

parser = lxml.html.HTMLParser(encoding='utf-8')

env = jinja2.Environment(loader=jinja2.FileSystemLoader('templates'))

re_book = re.compile('function refreshGroupBox(group_id, book_id) \{(.*?)\n *\}', re.DOTALL)
re_book = re.compile('function refreshGroupBox\(group_id, book_id\) \{(.*?)\n *\}', re.DOTALL)

re_tip = re.compile(br'var newTip = new Tip\(\$\(\'[^\']+\'\), "(.*?)", {')

dirs = ['shelf', 'genre']
start = 'https://www.goodreads.com/book/show/'

existing = {book['title'] for book in json.load(open('calibre_book_list.json'))}

def iter_books():
    for d in dirs:
        for f in sorted(os.listdir(d)):
            filename = os.path.join(d, f)
            root = lxml.html.parse(filename, parser=parser).getroot()
            for div in root.find_class('bookInformation'):
                link = div.find('.//a')
                rating = div.find('.//span[@class="minirating"]')
                description = div.find('./div[@class="bookDescription"]')
                r = rating[0].tail.strip()

                cover = div.getnext().find('.//img').get('src')

                book = {
                    'title': link.text,
                    'url': link.get('href'),
                    'rating': r,
                    'r': float(r[:3]),
                    'cover': cover,
                    'authors': [a.text for a in div.find_class('authorName')],
                }
                if description is not None:
                    index = 1 if len(description) == 3 else 0
                    book['description'] = description[index].text
                yield d, f, book
            continue

            # print(filename)
            for line in open(filename, 'rb'):
                if b'var newTip' not in line:
                    continue
                print(line)
                m = re_tip.search(line)
                tip = m.group(1).decode('unicode_escape').replace('\/', '/')
                # tip = m.group(1)  # .replace('\/', '/')
                # print(tip)
                if '<ul class="formatting_tips recommendation_tip">' in tip:
                    continue
                if 'Recommendations are disabled for that shelf.' in tip:
                    continue
                if 'Customize by selecting your' in tip:
                    continue
                print(tip)
                yield (d, f, lxml.html.fromstring(tip))


template = env.get_template('books.html')
seen = set()
books = []
first_authors = set()
for d, f, book in sorted(iter_books(), key=lambda i: i[2]['r'], reverse=True):
    # pprint(book)
    # print(repr(book.get('description')))
    # continue

    # title_link = book.find_class('bookTitle')[0]
    url = book['url']
    url = url[:url.find('?')]
    if url in seen:
        continue
    seen.add(url)
    title = book['title']
    authors = book['authors']
    first_authors.add(authors[0])
    main_title = title
    # for sep in ['(']:
    for sep in ':', ' - ', '(', ',':
        if sep in title:
            main_title = title[:title.find(sep)]
            break
    # print((main_title + ' by ' + u', '.join(authors)).encode('utf-8'))
    if len(main_title) < 10:
        continue
    if main_title in existing:
        continue
    # print(u'{} by {}'.format(main_title, authors[0]).encode('utf-8'))
    print(u'{}'.format(main_title))
    # print(main_title.encode('utf-8'))
    assert url.startswith(start)

    filename = 'books/' + url[len(start):] + '.html'
    # print(filename)
    if False and not os.path.exists(filename):
        open(filename, 'w').write(requests.get(url).content)
        sleep(1)
    books.append({
        'dir': d,
        'file': f[:-5],
        'title': title,
        'main_title': main_title,
        'authors': authors,
        'url': url,
        'rating': book['rating'],
        'cover': book['cover'],
        'description': book.get('description'),
    })

page = template.render(books=books)
open('book_list.html', 'w').write(page)
sys.exit(0)

for a in sorted(first_authors):
    print(a)

# authors = u' OR '.join(u'"{}"'.format(a) for a in sorted(first_authors) if a not in {'Hugh Howey', 'Elizabeth Moon', 'Max Hastings'})
# print(authors.encode('utf-8'))