# Software License Agreement (BSD License)
#
# Copyright (c) 2013, Eucalyptus Systems, Inc.
# All rights reserved.
#
# Redistribution and use of this software in source and binary forms, with or
# without modification, are permitted provided that the following conditions
# are met:
#
#   Redistributions of source code must retain the above
#   copyright notice, this list of conditions and the
#   following disclaimer.
#
#   Redistributions in binary form must reproduce the above
#   copyright notice, this list of conditions and the
#   following disclaimer in the documentation and/or other
#   materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.


def autoscaling_tag_def(tag_str):
    tag_dict = {}
    pieces = ','.split(tag_str)
    for piece in pieces:
        piece = piece.strip()
        if '=' not in piece:
            raise ValueError(("invalid tag definition: each segment of '{0}' "
                              "must have format KEY=VALUE").format(piece))
        key, val = piece.split('=', 1)
        if key == 'k':
            tag_dict['Key'] = val
        elif key == 'id':
            tag_dict['ResourceId'] = val
        elif key == 't':
            tag_dict['ResourceType'] = val
        elif key == 'v':
            tag_dict['Value'] = val
        elif key == 'p':
            if val.lower() in ('true', 'false'):
                tag_dict['PropagateAtLaunch'] = val.lower()
            else:
                raise ValueError("value for to 'p=' must be 'true' or 'false'")
        else:
            raise ValueError("unrecognized tag segment '{0}'".format(piece))
    if not tag_dict.get('Key'):
        raise ValueError(
            "tag '{0}' must contain a 'k=' segment with a non-empty value")
    return tag_dict

# Software License Agreement (BSD License)
#
# Copyright (c) 2013, Eucalyptus Systems, Inc.
# All rights reserved.
#
# Redistribution and use of this software in source and binary forms, with or
# without modification, are permitted provided that the following conditions
# are met:
#
#   Redistributions of source code must retain the above
#   copyright notice, this list of conditions and the
#   following disclaimer.
#
#   Redistributions in binary form must reproduce the above
#   copyright notice, this list of conditions and the
#   following disclaimer in the documentation and/or other
#   materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.


from argparse import ArgumentTypeError


def autoscaling_tag_def(tag_str):
    tag_dict = {}
    pieces = ','.split(tag_str)
    for piece in pieces:
        piece = piece.strip()
        if '=' not in piece:
            raise ArgumentTypeError(
                "invalid tag definition: each segment of '{0}' must have "
                "format KEY=VALUE".format(piece))
        key, val = piece.split('=', 1)
        if key == 'k':
            tag_dict['Key'] = val
        elif key == 'id':
            tag_dict['ResourceId'] = val
        elif key == 't':
            tag_dict['ResourceType'] = val
        elif key == 'v':
            tag_dict['Value'] = val
        elif key == 'p':
            if val.lower() in ('true', 'false'):
                tag_dict['PropagateAtLaunch'] = val.lower()
            else:
                raise ArgumentTypeError(
                    "value for to 'p=' must be 'true' or 'false'")
        else:
            raise ArgumentTypeError(
                "unrecognized tag segment '{0}'".format(piece))
    if not tag_dict.get('Key'):
        raise ArgumentTypeError(
            "tag '{0}' must contain a 'k=' segment with a non-empty value")
    return tag_dict

Raise ArgumentTypeErrors instead of ValueErrors