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# -*- coding: utf-8 -*-

# Copyright(C) 2016      Vincent A
#
# This file is part of a weboob module.
# This weboob module is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This weboob module is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this weboob module. If not, see <http://www.gnu.org/licenses/>.

import re
from weboob.browser import URL
from weboob.browser.browsers import LoginBrowser, need_login
from weboob.capabilities.image import CapImage
from weboob.exceptions import BrowserIncorrectPassword
from weboob.tools.compat import quote_plus

from .pages import AccountPage, LoginPage, SearchAPI, ViewPage


class PixabayBrowser(LoginBrowser):
    BASEURL = 'https://pixabay.com'
    DEFAULT_KEY = '2182074-ee443567762485ef2d40b6275'

    SORTS = {
        CapImage.SEARCH_RELEVANCE: 'popular',
        CapImage.SEARCH_RATING: 'popular',
        CapImage.SEARCH_VIEWS: 'popular',
        CapImage.SEARCH_DATE: 'latest',
    }

    account_page = URL('/en/accounts/media/$', AccountPage)
    search_api = URL('/api/', SearchAPI)
    view_page = URL(r'/(?P<lang>[a-z]{2})/(?P<label>[\w-]+)-(?P<id>\d+)/$', ViewPage)
    dl_page = URL(r'/(?P<lang>[a-z]{2})/(?P<type>\w+)/download/(?P<filename>[\w.-]+$')
    login_page = URL(r'/(?P<lang>[a-z]{2})/accounts/login/$', LoginPage)

    def __init__(self, api_key=None, *args, **kwargs):
        super(PixabayBrowser, self).__init__(*args, **kwargs)

        self.api_key = api_key or self.DEFAULT_KEY

    def _improve_low(self, d):
        # 960px is the largest size for the non-logged in
        d['webformatURL'] = re.sub(r'_\d+(\.[a-z]+)$', r'_960\1', d['webformatURL'])
        return d

    def search_images(self, pattern, sortby=CapImage.SEARCH_RELEVANCE, nsfw=False, **opts):
        opts['q'] = quote_plus(pattern)
        opts['order'] = self.SORTS[sortby]
        opts['safesearch'] = nsfw
        opts['key'] = self.api_key
        opts['per_page'] = 20
        opts['page'] = 1

        while True:
            self.search_api.go(params=opts)
            assert self.search_api.is_here()
            res = self.page.get()

            for d in res['hits']:
                yield self._improve_low(d)

            if opts['page'] * opts['per_page'] >= res['totalHits']:
                break
            opts['page'] += 1

    def get_image(self, _id):
        opts = {}
        opts['key'] = self.api_key
        opts['id'] = _id

        self.search_api.go(params=opts)
        assert self.search_api.is_here()
        d = self.page.get()
        if len(d['hits']):
            return self._improve_low(d['hits'][0])
        else:
            return None

    @need_login
    def download_image(self, page_url):
        match = self.view_page.match(page_url)
        assert match
        self.view_page.go(**match.groupdict())
        assert self.view_page.is_here()

        params = {
            'lang': self.page.params['lang'],
            'type': self.page.type,
            'filename': self.page.filename
        }
        url = self.dl_page.build(**params)
        content = self.open(url).content
        return content

    def do_login(self):
        login = {}
        login['username'] = self.username
        login['password'] = self.password
        login['next'] = '/en/accounts/media/'
        self.login_page.go(lang='en', data=login)
        if self.login_page.is_here():
            raise BrowserIncorrectPassword()
        assert self.account_page.is_here()