#!/usr/bin/python3
#
# Config action implementation.
#
# Copyright (c) 2018 Xevo Inc. All rights reserved.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
#

import yaml

from wst import WSError
from wst.conf import (
    get_ws_config,
    update_config,
    VALID_CONFIG
)


def args(parser):
    '''Populates the argument parser for the config subcmd.'''
    parser.add_argument(
        '-l', '--list',
        action='store_true',
        default=False,
        help='List the current workspace config')
    parser.add_argument(
        'options',
        action='store',
        nargs='*',
        help='Key-value options (format key=value')


def handler(ws, args):
    '''Executes the config subcmd.'''
    config = get_ws_config(ws)
    if args.list:
        print(yaml.dump(config, default_flow_style=False), end='')
        return

    for arg in args.options:
        split = arg.split('=')
        if len(split) != 2:
            raise WSError('option argument %s invalid. format is key=value'
                          % arg)
        key, val = split
        if key not in VALID_CONFIG:
            raise WSError('unknown key %s' % key)
        if val not in VALID_CONFIG[key]:
            raise WSError('unknown value %s' % val)
        if key == 'type' and config[key] != val:
            config['taint'] = True
        config[key] = val

    update_config(ws, config)
