"""MIT License

Copyright (c) 2019 David Luevano Alvarado

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
"""
import urllib3
from bs4 import BeautifulSoup


def get_chapter_image_list(chapter_data):
    """
    Gets the links for each image in the chapter,
    and returns a list of the links.
    Returns a list of the image urls and its file name.
    chapter_data: A list containing a url and a title.
    NOTE: Not for direct use with the result of 'get_chapters_list'
    """

    # Not actually a file, but the content of the html.
    html = urllib3.PoolManager().request('GET', chapter_data[0])

    # Get the data from the html and parse it.
    soup = BeautifulSoup(html.data, 'html.parser')

    # Get the "vung-doc" class, this contains a url for each page,
    # which redirects to the source of the image.
    # Deletes the first and last items, since they're trash.
    soup_img = soup.find_all('img')
    del soup_img[0]
    del soup_img[len(soup_img)-1]

    # Stores each image url in a list.
    image_url_list = []
    for img in soup_img:
        # Gets the sring of the url, splits it by the char '/',
        # and gets the last item, which is the name of the file.

        image_url_list.append([img['src'], img['src'].split('/')[-1]])

    return image_url_list