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

# Copyright(C) 2013 Julien Veyssier
#
# This file is part of weboob.
#
# weboob 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.
#
# weboob 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 weboob. If not, see <http://www.gnu.org/licenses/>.

import re

from weboob.capabilities.subtitle import Subtitle
from weboob.capabilities.base import NotAvailable, NotLoaded
from weboob.tools.browser import BasePage
from weboob.applications.suboob.suboob import LANGUAGE_CONV


__all__ = ['SubtitlesPage', 'SubtitlePage', 'SearchPage']


class SearchPage(BasePage):
    """ Page which contains results as a list of movies
    """
    def iter_subtitles(self):
        tabresults = self.parser.select(self.document.getroot(), 'table#search_results')
        if len(tabresults) > 0:
            table = tabresults[0]
            # for each result line, explore the subtitle list page to iter subtitles
            for line in self.parser.select(table, 'tr'):
                links = self.parser.select(line, 'a')
                if len(links) > 0:
                    a = links[0]
                    url = a.attrib.get('href', '')
                    if "ads.opensubtitles" not in url:
                        self.browser.location("http://www.opensubtitles.org%s" % url)
                        assert self.browser.is_on_page(SubtitlesPage) or self.browser.is_on_page(SubtitlePage)
                        # subtitles page does the job
                        for subtitle in self.browser.page.iter_subtitles():
                            yield subtitle


class SubtitlesPage(BasePage):
    """ Page which contains several subtitles for a single movie
    """
    def iter_subtitles(self):
        tabresults = self.parser.select(self.document.getroot(), 'table#search_results')
        if len(tabresults) > 0:
            table = tabresults[0]
            # for each result line, get informations
            # why following line doesn't work all the time (for example 'search fr sopranos guy walks' ?
            # for line in self.parser.select(table,'tr'):
            for line in table.getiterator('tr'):
                # some tr are useless, specially ads
                if line.attrib.get('id', '').startswith('name'):
                    yield self.get_subtitle_from_line(line)

    def get_subtitle_from_line(self, line):
        cells = self.parser.select(line, 'td')
        if len(cells) > 0:
            links = self.parser.select(line, 'a')
            a = links[0]
            name = u" ".join(a.text.strip().split())
            first_cell = cells[0]
            spanlist = self.parser.select(first_cell, 'span')
            if len(spanlist) > 0:
                long_name = spanlist[0].attrib.get('title', '')
            else:
                texts = first_cell.itertext()
                long_name = texts.next()
                long_name = texts.next()
                if "Download at 25" in long_name:
                    long_name = "---"
            name = "%s (%s)" % (name, long_name)
            second_cell = cells[1]
            link = self.parser.select(second_cell, 'a', 1)
            lang = link.attrib.get('href', '').split('/')[-1].split('-')[-1]
            for lshort, llong in LANGUAGE_CONV.items():
                if lang == llong:
                    lang = unicode(lshort)
                    break
            nb_cd = int(cells[2].text.strip().lower().replace('cd', ''))
            cell_dl = cells[4]
            href = self.parser.select(cell_dl, 'a', 1).attrib.get('href', '')
            url = unicode('http://www.opensubtitles.org%s' % href)
            id = href.split('/')[-1]

            subtitle = Subtitle(id, name)
            subtitle.url = url
            subtitle.language = lang
            subtitle.nb_cd = nb_cd
            subtitle.description = NotLoaded
            return subtitle


class SubtitlePage(BasePage):
    """ Page which contains a single subtitle for a movie
    """
    def get_subtitle(self):
        desc = NotAvailable
        father = self.parser.select(self.document.getroot(), 'a#app_link', 1).getparent()
        a = self.parser.select(father, 'a')[1]
        id = a.attrib.get('href', '').split('/')[-1]
        m = re.match('Download \((\w+)\)', self.parser.tocleanstring(a))
        if m:
            ext = m.group(1)
        else:
            ext = u'zip'
        url = unicode('http://www.opensubtitles.org/subtitleserve/sub/%s' % id)
        link = self.parser.select(self.document.getroot(), 'link[rel=bookmark]', 1)
        title = unicode(link.attrib.get('title', ''))
        nb_cd = int(title.lower().split('cd')[0].split()[-1])
        lang = unicode(title.split('(')[1].split(')')[0])
        file_names = self.parser.select(self.document.getroot(), "img[title~=filename]")
        if len(file_names) > 0:
            file_name = file_names[0].getparent().text_content()
            file_name = ' '.join(file_name.split())
            desc = u'files :'
            for f in file_names:
                desc_line = f.getparent().text_content()
                desc += '\n'+' '.join(desc_line.split())
        name = unicode('%s (%s)' % (title, file_name))

        subtitle = Subtitle(id, name)
        subtitle.url = url
        subtitle.ext = ext
        for lshort, llong in LANGUAGE_CONV.items():
            if lang == llong:
                lang = unicode(lshort)
                break
        subtitle.language = lang
        subtitle.nb_cd = nb_cd
        subtitle.description = desc
        return subtitle

    def iter_subtitles(self):
        yield self.get_subtitle()
