#!/usr/bin/env python
from datetime import datetime, timedelta

from calibre.utils.date import parse_date
from calibre.web.feeds.news import BasicNewsRecipe, classes


class ORF(BasicNewsRecipe):
    title = 'Observer Research Foundation'
    description = (
        'Set up in 1990, ORF seeks to lead and aid policy thinking towards building a strong and prosperous India'
        ' in a fair and equitable world. It helps discover and inform India’s choices, and carries Indian voices '
        'and ideas to forums shaping global debates.'
    )
    language = 'en_IN'
    __author__ = 'unkn0wn'
    encoding = 'utf-8'
    no_stylesheets = True
    remove_javascript = True
    masthead_url = 'https://www.orfonline.org/wp-content/uploads/2015/09/Logo_ORF_JPEG.jpg'
    remove_attributes = ['style', 'height', 'width']
    ignore_duplicate_articles = {'url', 'title'}
    remove_empty_feeds = True
    oldest_article = 7
    simultaneous_downloads = 1

    recipe_specific_options = {
        'days': {
            'short': 'Oldest article to download from this news source. In days ',
            'long': 'For example, 0.5, gives you articles from the past 12 hours',
            'default': str(oldest_article)
        }
    }

    def __init__(self, *args, **kwargs):
        BasicNewsRecipe.__init__(self, *args, **kwargs)
        d = self.recipe_specific_options.get('days')
        if d and isinstance(d, str):
            self.oldest_article = float(d)

    extra_css = '''
        img {display:block; margin:0 auto;}
        .report-slider, .author_panel {font-size:small; color:#404040;}
        .report {font-size:small; font-weight:bold;}
        .excert-italic, .recent-block-people {font-style:italic; color:#202020;}
        blockquote, em {color:#202020;}
        .espert_speak_panel {font-size:small;}
    '''

    def get_browser(self):
        return BasicNewsRecipe.get_browser(self, user_agent='common_words/based')

    resolve_internal_links = True
    remove_empty_feeds = True

    keep_only_tags = [
        dict(name='h1'),
        classes('author_panel espert_speak_panel expert_panel_content')
    ]
    remove_tags = [
        classes(
            'social socialshare comment-area-section telegramhtml post-tag '
            'research-prev research-next col-md-4 button_group sharethis-p tags'
        )
    ]

    def parse_index(self):
        index = 'https://www.orfonline.org'
        secs = [
            ('Expert Speak', '/expert-speak'),
            ('Young Voices', '/expert-speak-category/young-voices'),
            ('Commentary', '/content-type/commentary'),
            ('Issue Briefs', '/content-type/issue-briefs'),
            ('Books', '/content-type/books'),
            ('Special Reports', '/content-type/special-reports')
        ]

        feeds = []

        for x, y in secs:
            section = x
            self.log(section)

            articles = []

            soup = self.index_to_soup(index + y)
            for a in soup.findAll('a', attrs={'href':True}):
                if not a.find('h3'):
                    continue
                div = a.find_previous_sibling(attrs={'class':'topic_story'})
                if div:
                    if div.find(**classes('show_date')):
                        date = parse_date(self.tag_to_string(
                                    div.find(**classes('show_date'))
                                )
                            ).replace(tzinfo=None)
                        if (datetime.now() - date) > timedelta(self.oldest_article):
                            self.log('      Skipping ', self.tag_to_string(a))
                            continue
                url = a['href']
                title = self.tag_to_string(a)
                desc = ''
                if a.find_next_sibling('p'):
                    desc = self.tag_to_string(a.find_next_sibling('p'))
                if a.find_next_sibling(attrs={'class':'author_name'}):
                    desc = self.tag_to_string(a.find_next_sibling(attrs={'class':'author_name'})) + ' | ' + desc
                self.log('\t', title, '\n\t', desc, '\n\t\t', url)
                articles.append({'title': title, 'url': url, 'description': desc})
            if articles:
                feeds.append((section, articles))
        return feeds
