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

"""

    rhodecode.controllers.journal

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    Journal controller for pylons

    :created_on: Nov 21, 2010

    :author: marcink

    :copyright: (C) 2009-2011 Marcin Kuzminski <marcin@python-works.com>    

    :license: GPLv3, see COPYING for more details.

"""

# This program is free software; you can redistribute it and/or

# modify it under the terms of the GNU General Public License

# as published by the Free Software Foundation; version 2

# of the License or (at your opinion) any later version of the license.

# 

# This program 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 General Public License for more details.

# 

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,

# MA  02110-1301, USA.

import logging

from sqlalchemy import or_

from sqlalchemy.orm import joinedload, make_transient

from webhelpers.paginate import Page

from itertools import groupby

from pylons import request, tmpl_context as c, response, url

from pylons.i18n.translation import _

from webhelpers.feedgenerator import Atom1Feed, Rss201rev2Feed

import rhodecode.lib.helpers as h

from rhodecode.lib.auth import LoginRequired, NotAnonymous

from rhodecode.lib.base import BaseController, render

from rhodecode.model.db import UserLog, UserFollowing

log = logging.getLogger(__name__)

class JournalController(BaseController):

    def __before__(self):

        super(JournalController, self).__before__()

        self.rhodecode_user = self.rhodecode_user

        self.title = _('%s public journal %s feed') % (c.rhodecode_name, '%s')

        self.language = 'en-us'

        self.ttl = "5"

        self.feed_nr = 20

    @LoginRequired()

    @NotAnonymous()

    def index(self):

        # Return a rendered template

        p = int(request.params.get('page', 1))

        c.following = self.sa.query(UserFollowing)\

            .filter(UserFollowing.user_id == self.rhodecode_user.user_id)\

            .options(joinedload(UserFollowing.follows_repository))\

            .all()

        journal = self._get_journal_data(c.following)

        c.journal_pager = Page(journal, page=p, items_per_page=20)

        c.journal_day_aggreagate = self._get_daily_aggregate(c.journal_pager)

        c.journal_data = render('journal/journal_data.html')

        if request.params.get('partial'):

            return c.journal_data

        return render('journal/journal.html')

    def _get_daily_aggregate(self, journal):

        groups = []

        for k, g in groupby(journal, lambda x:x.action_as_day):

            user_group = []

            for k2, g2 in groupby(list(g), lambda x:x.user.email):

                l = list(g2)

                user_group.append((l[0].user, l))

            groups.append((k, user_group,))

        return groups

    def _get_journal_data(self, following_repos):

        repo_ids = [x.follows_repository.repo_id for x in following_repos

                    if x.follows_repository is not None]

        user_ids = [x.follows_user.user_id for x in following_repos

                    if x.follows_user is not None]

        filtering_criterion = None

        if repo_ids and user_ids:

            filtering_criterion = or_(UserLog.repository_id.in_(repo_ids),

                        UserLog.user_id.in_(user_ids))

        if repo_ids and not user_ids:

            filtering_criterion = UserLog.repository_id.in_(repo_ids)

        if not repo_ids and user_ids:

            filtering_criterion = UserLog.user_id.in_(user_ids)

        if filtering_criterion is not None:

            journal = self.sa.query(UserLog)\

                .options(joinedload(UserLog.user))\

                .options(joinedload(UserLog.repository))\

                .filter(filtering_criterion)\

                .order_by(UserLog.action_date.desc())

        else:

            journal = []

        return journal

    @LoginRequired()

    @NotAnonymous()

    def toggle_following(self):

        cur_token = request.POST.get('auth_token')

        token = h.get_token()

        if cur_token == token:

            user_id = request.POST.get('follows_user_id')

            if user_id:

                try:

                    self.scm_model.toggle_following_user(user_id,

                                                    self.rhodecode_user.user_id)

                    return 'ok'

                except:

            repo_id = request.POST.get('follows_repo_id')

            if repo_id:

                try:

                    self.scm_model.toggle_following_repo(repo_id,

                                                    self.rhodecode_user.user_id)

                    return 'ok'

                except:

        log.debug('token mismatch %s vs %s', cur_token, token)

    @LoginRequired()

    def public_journal(self):

        # Return a rendered template

        p = int(request.params.get('page', 1))

        c.following = self.sa.query(UserFollowing)\

            .filter(UserFollowing.user_id == self.rhodecode_user.user_id)\

            .options(joinedload(UserFollowing.follows_repository))\

            .all()

        journal = self._get_journal_data(c.following)

        c.journal_pager = Page(journal, page=p, items_per_page=20)

        c.journal_day_aggreagate = self._get_daily_aggregate(c.journal_pager)

        c.journal_data = render('journal/journal_data.html')

        if request.params.get('partial'):

            return c.journal_data

        return render('journal/public_journal.html')

    @LoginRequired(api_access=True)

    def public_journal_atom(self):

        """

        Produce an atom-1.0 feed via feedgenerator module

        """

        c.following = self.sa.query(UserFollowing)\

            .filter(UserFollowing.user_id == self.rhodecode_user.user_id)\

            .options(joinedload(UserFollowing.follows_repository))\

            .all()

        journal = self._get_journal_data(c.following)

        feed = Atom1Feed(title=self.title % 'atom',

                         link=url('public_journal_atom', qualified=True),

                         description=_('Public journal'),

                         language=self.language,

                         ttl=self.ttl)

        for entry in journal[:self.feed_nr]:

            #tmpl = h.action_parser(entry)[0]

            action, action_extra = h.action_parser(entry, feed=True)

            title = "%s - %s %s" % (entry.user.short_contact, action,

                                 entry.repository.repo_name)

            desc = action_extra()

            feed.add_item(title=title,

                          pubdate=entry.action_date,

                          link=url('', qualified=True),

                          author_email=entry.user.email,

                          author_name=entry.user.full_contact,

                          description=desc)

        response.content_type = feed.mime_type

        return feed.writeString('utf-8')

    @LoginRequired(api_access=True)

    def public_journal_rss(self):

        """

        Produce an rss2 feed via feedgenerator module

        """

        c.following = self.sa.query(UserFollowing)\

            .filter(UserFollowing.user_id == self.rhodecode_user.user_id)\

            .options(joinedload(UserFollowing.follows_repository))\

            .all()

        journal = self._get_journal_data(c.following)

        feed = Rss201rev2Feed(title=self.title % 'rss',

                         link=url('public_journal_rss', qualified=True),

                         description=_('Public journal'),

                         language=self.language,

                         ttl=self.ttl)

        for entry in journal[:self.feed_nr]:

            #tmpl = h.action_parser(entry)[0]

            action, action_extra = h.action_parser(entry, feed=True)

            title = "%s - %s %s" % (entry.user.short_contact, action,

                                 entry.repository.repo_name)

            desc = action_extra()

            feed.add_item(title=title,

                          pubdate=entry.action_date,

                          link=url('', qualified=True),

                          author_email=entry.user.email,

                          author_name=entry.user.full_contact,

                          description=desc)

        response.content_type = feed.mime_type

        return feed.writeString('utf-8')