# GNU MediaGoblin -- federated, autonomous media hosting
# Copyright (C) 2011, 2012 MediaGoblin contributors.  See AUTHORS.
#
# This program 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 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

from mediagoblin.gmg_commands import util as commands_util
from mediagoblin import auth
from mediagoblin import mg_globals

def adduser_parser_setup(subparser):
    subparser.add_argument(
        '--username','-u',
        help="Username used to login")
    subparser.add_argument(
        '--password','-p',
        help="Your supersecret word to login, beware of storing it in bash history")
    subparser.add_argument(
        '--email','-e',
        help="Email to receive notifications")


def adduser(args):
    #TODO: Lets trust admins this do not validate Emails :)
    commands_util.setup_app(args)

    args.username = commands_util.prompt_if_not_set(args.username, "Username:")
    args.password = commands_util.prompt_if_not_set(args.password, "Password:",True)
    args.email = commands_util.prompt_if_not_set(args.email, "Email:")

    db = mg_globals.database
    users_with_username = \
        db.User.query.filter_by(
            username=args.username.lower()
        ).count()

    if users_with_username:
        print u'Sorry, a user with that name already exists.'

    else:
        # Create the user
        entry = db.User()
        entry.username = unicode(args.username.lower())
        entry.email = unicode(args.email)
        entry.pw_hash = auth.gen_password_hash(args.password)
        default_privileges = [
            db.Privilege.query.filter(
                db.Privilege.privilege_name==u'commenter').one(),
            db.Privilege.query.filter(
                db.Privilege.privilege_name==u'uploader').one(),
            db.Privilege.query.filter(
                db.Privilege.privilege_name==u'reporter').one(),
            db.Privilege.query.filter(
                db.Privilege.privilege_name==u'active').one()
        ]
        entry.all_privileges = default_privileges
        entry.save()

        print "User created (and email marked as verified)"


def makeadmin_parser_setup(subparser):
    subparser.add_argument(
        'username',
        help="Username to give admin level")


def makeadmin(args):
    commands_util.setup_app(args)

    db = mg_globals.database

    user = db.User.query.filter_by(
        username=unicode(args.username.lower())).one()
    if user:
        user.all_privileges.append(
            db.Privilege.query.filter(
                db.Privilege.privilege_name==u'admin').one()
        )
        user.save()
        print 'The user is now Admin'
    else:
        print 'The user doesn\'t exist'


def changepw_parser_setup(subparser):
    subparser.add_argument(
        'username',
        help="Username used to login")
    subparser.add_argument(
        'password',
        help="Your NEW supersecret word to login")


def changepw(args):
    commands_util.setup_app(args)

    db = mg_globals.database

    user = db.User.query.filter_by(
        username=unicode(args.username.lower())).one()
    if user:
        user.pw_hash = auth.gen_password_hash(args.password)
        user.save()
        print 'Password successfully changed'
    else:
        print 'The user doesn\'t exist'
