# SPDX-License-Identifier: AGPL-3.0-or-later
"""
 Doku Wiki
"""

from urllib.parse import urlencode
from lxml.html import fromstring
from searx.utils import extract_text, eval_xpath

# about
about = {
    "website": 'https://www.dokuwiki.org/',
    "wikidata_id": 'Q851864',
    "official_api_documentation": 'https://www.dokuwiki.org/devel:xmlrpc',
    "use_official_api": False,
    "require_api_key": False,
    "results": 'HTML',
}

# engine dependent config
categories = ['general']  # TODO , 'images', 'music', 'videos', 'files'
paging = False
number_of_results = 5

# search-url
# Doku is OpenSearch compatible
base_url = 'http://localhost:8090'
search_url = '/?do=search'\
             '&{query}'
# TODO             '&startRecord={offset}'\
# TODO             '&maximumRecords={limit}'\


# do search-request
def request(query, params):

    params['url'] = base_url +\
        search_url.format(query=urlencode({'id': query}))

    return params


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

    doc = fromstring(resp.text)

    # parse results
    # Quickhits
    for r in eval_xpath(doc, '//div[@class="search_quickresult"]/ul/li'):
        try:
            res_url = eval_xpath(r, './/a[@class="wikilink1"]/@href')[-1]
        except:
            continue

        if not res_url:
            continue

        title = extract_text(eval_xpath(r, './/a[@class="wikilink1"]/@title'))

        # append result
        results.append({'title': title,
                        'content': "",
                        'url': base_url + res_url})

    # Search results
    for r in eval_xpath(doc, '//dl[@class="search_results"]/*'):
        try:
            if r.tag == "dt":
                res_url = eval_xpath(r, './/a[@class="wikilink1"]/@href')[-1]
                title = extract_text(eval_xpath(r, './/a[@class="wikilink1"]/@title'))
            elif r.tag == "dd":
                content = extract_text(eval_xpath(r, '.'))

                # append result
                results.append({'title': title,
                                'content': content,
                                'url': base_url + res_url})
        except:
            continue

        if not res_url:
            continue

    # return results
    return results