# Copyright 2010-2015  Lars Wirzenius
#
# 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, either version 3 of the License, or
# (at your option) any later version.
#
# 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, see <http://www.gnu.org/licenses/>.


import cliapp
import os
import shutil
import string
import time

import jtlib


class NewTopicCommand(cliapp.Plugin):

    def enable(self):
        self.app.add_subcommand('new-topic', self.run)

    def run(self, args):
        '''Create a new topic page.'''

        if len(args) != 2:
            raise cliapp.AppException(
                'Must be given two args (page path, title) (%r)' % args)

        pathname = self._topic_pathname(args[0])
        self._create_topic_page(pathname, args[1])
        jtlib.commit_to_git(self.app.settings['source'], [pathname])
        if self.app.settings['push']:
            jtlib.push_git(self.app.settings['source'])

    def _topic_pathname(self, page_path):
        return os.path.join(self.app.settings['source'], page_path + '.mdwn')

    def _create_topic_page(self, pathname, title):
        dirname = os.path.dirname(pathname)
        if not os.path.exists(dirname):
            os.makedirs(dirname)

        vars = {
            'title': title,
        }
        rendered_template = self.app.render_template('new_topic.j2', vars)
        with open(pathname, 'w') as f:
            f.write(rendered_template)