#  INA (Videos)
#
# @website     https://www.ina.fr/
# @provide-api no
#
# @using-api   no
# @results     HTML (using search portal)
# @stable      no (HTML can change)
# @parse       url, title, content, publishedDate, thumbnail
#
# @todo        set content-parameter with correct data
# @todo        embedded (needs some md5 from video page)

from json import loads
from urllib.parse import urlencode
from lxml import html
from dateutil import parser
from html.parser import HTMLParser
from searx.engines.xpath import extract_text


# engine dependent config
categories = ['videos']
paging = True
page_size = 48

# search-url
base_url = 'https://www.ina.fr'
search_url = base_url + '/layout/set/ajax/recherche/result?autopromote=&hf={ps}&b={start}&type=Video&r=&{query}'

# specific xpath variables
results_xpath = '//div[contains(@class,"search-results--list")]//div[@class="media-body"]'
url_xpath = './/a/@href'
title_xpath = './/h3[@class="h3--title media-heading"]'
thumbnail_xpath = './/img/@src'
publishedDate_xpath = './/span[@class="broadcast"]'
content_xpath = './/p[@class="media-body__summary"]'


# do search-request
def request(query, params):
    params['url'] = search_url.format(ps=page_size,
                                      start=params['pageno'] * page_size,
                                      query=urlencode({'q': query}))

    return params


# get response from search-request
def response(resp):
    results = []

    # we get html in a JSON container...
    response = loads(resp.text)
    if "content" not in response:
        return []
    dom = html.fromstring(response["content"])
    p = HTMLParser()

    # parse results
    for result in dom.xpath(results_xpath):
        videoid = result.xpath(url_xpath)[0]
        url = base_url + videoid
        title = p.unescape(extract_text(result.xpath(title_xpath)))
        try:
            thumbnail = extract_text(result.xpath(thumbnail_xpath)[0])
        except:
            thumbnail = ''
        if thumbnail and thumbnail[0] == '/':
            thumbnail = base_url + thumbnail
        d = extract_text(result.xpath(publishedDate_xpath)[0])
        d = d.split('/')
        # force ISO date to avoid wrong parsing
        d = "%s-%s-%s" % (d[2], d[1], d[0])
        publishedDate = parser.parse(d)
        content = extract_text(result.xpath(content_xpath))

        # append result
        results.append({'url': url,
                        'title': title,
                        'content': content,
                        'template': 'videos.html',
                        'publishedDate': publishedDate,
                        'thumbnail': thumbnail})

    # return results
    return results