# -*- coding: utf-8 -*-
#
# This file is part of MARV Robotics
#
# Copyright 2016 Ternaris
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

from __future__ import absolute_import, division, print_function

import marv


@marv.node()
@marv.input('messages', filter=['*:std_msgs/String'])
def fulltext(messages):
    """Extract all text from bag file and store for fulltext search"""
    words = set()
    for _, msg, _ in messages:
        words.update(msg.data.split())
    return {'words': list(words)}
