# -*- encoding: utf-8 -*-
# Part of Odoo. See LICENSE file for full copyright and licensing details.
import contextlib
import re
from unittest.mock import Mock, MagicMock, patch

import werkzeug

import odoo
from odoo.tools.misc import DotDict


def get_video_embed_code(video_url):
    ''' Computes the valid iframe from given URL that can be embedded
        (or False in case of invalid URL).
    '''

    if not video_url:
        return False

    # To detect if we have a valid URL or not
    validURLRegex = r'^(http:\/\/|https:\/\/|\/\/)[a-z0-9]+([\-\.]{1}[a-z0-9]+)*\.[a-z]{2,5}(:[0-9]{1,5})?(\/.*)?$'

    # Regex for few of the widely used video hosting services
    ytRegex = r'^(?:(?:https?:)?\/\/)?(?:www\.)?(?:youtu\.be\/|youtube(-nocookie)?\.com\/(?:embed\/|v\/|watch\?v=|watch\?.+&v=))((?:\w|-){11})(?:\S+)?$'
    vimeoRegex = r'\/\/(player.)?vimeo.com\/([a-z]*\/)*([0-9]{6,11})[?]?.*'
    dmRegex = r'.+dailymotion.com\/(video|hub|embed)\/([^_?]+)[^#]*(#video=([^_&]+))?'
    igRegex = r'(.*)instagram.com\/p\/(.[a-zA-Z0-9]*)'
    ykuRegex = r'(.*).youku\.com\/(v_show\/id_|embed\/)(.+)'

    if not re.search(validURLRegex, video_url):
        return False
    else:
        embedUrl = False
        ytMatch = re.search(ytRegex, video_url)
        vimeoMatch = re.search(vimeoRegex, video_url)
        dmMatch = re.search(dmRegex, video_url)
        igMatch = re.search(igRegex, video_url)
        ykuMatch = re.search(ykuRegex, video_url)

        if ytMatch and len(ytMatch.groups()[1]) == 11:
            embedUrl = '//www.youtube%s.com/embed/%s?rel=0' % (ytMatch.groups()[0] or '', ytMatch.groups()[1])
        elif vimeoMatch:
            embedUrl = '//player.vimeo.com/video/%s' % (vimeoMatch.groups()[2])
        elif dmMatch:
            embedUrl = '//www.dailymotion.com/embed/video/%s' % (dmMatch.groups()[1])
        elif igMatch:
            embedUrl = '//www.instagram.com/p/%s/embed/' % (igMatch.groups()[1])
        elif ykuMatch:
            ykuLink = ykuMatch.groups()[2]
            if '.html?' in ykuLink:
                ykuLink = ykuLink.split('.html?')[0]
            embedUrl = '//player.youku.com/embed/%s' % (ykuLink)
        else:
            # We directly use the provided URL as it is
            embedUrl = video_url
        return '<iframe class="embed-responsive-item" src="%s" allowFullScreen="true" frameborder="0"></iframe>' % embedUrl


def werkzeugRaiseNotFound(*args, **kwargs):
    raise werkzeug.exceptions.NotFound()


@contextlib.contextmanager
def MockRequest(
        env, *, routing=True, multilang=True,
        context=None,
        cookies=None, country_code=None, website=None, sale_order_id=None
):
    router = MagicMock()
    match = router.return_value.bind.return_value.match
    if routing:
        match.return_value[0].routing = {
            'type': 'http',
            'website': True,
            'multilang': multilang
        }
    else:
        match.side_effect = werkzeugRaiseNotFound

    if context is None:
        context = {}
    lang_code = context.get('lang', env.context.get('lang', 'en_US'))
    context.setdefault('lang', lang_code)

    request = Mock(
        context=context,
        db=None,
        endpoint=match.return_value[0] if routing else None,
        env=env,
        httprequest=Mock(
            host='localhost',
            path='/hello/',
            app=odoo.http.root,
            environ={'REMOTE_ADDR': '127.0.0.1'},
            cookies=cookies or {},
            referrer='',
        ),
        lang=env['res.lang']._lang_get(lang_code),
        redirect=werkzeug.utils.redirect,
        session=DotDict(
            geoip={'country_code': country_code},
            debug=False,
            sale_order_id=sale_order_id,
        ),
        website=website
    )

    with contextlib.ExitStack() as s:
        odoo.http._request_stack.push(request)
        s.callback(odoo.http._request_stack.pop)
        s.enter_context(patch('odoo.http.root.get_db_router', router))

        yield request