#!/usr/bin/env python
#
#  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.

import argparse
import six

from cliff.formatters import shell
from cliff.tests import test_columns

import mock


def test_shell_formatter():
    sf = shell.ShellFormatter()
    c = ('a', 'b', 'c', 'd')
    d = ('A', 'B', 'C', '"escape me"')
    expected = 'a="A"\nb="B"\nd="\\"escape me\\""\n'
    output = six.StringIO()
    args = mock.Mock()
    args.variables = ['a', 'b', 'd']
    args.prefix = ''
    sf.emit_one(c, d, output, args)
    actual = output.getvalue()
    assert expected == actual


def test_shell_formatter_args():
    sf = shell.ShellFormatter()
    c = ('a', 'b', 'c', 'd')
    d = ('A', 'B', 'C', '"escape me"')
    expected = 'Xd="\\"escape me\\""\n'
    output = six.StringIO()
    # Parse arguments as if passed on the command-line
    parser = argparse.ArgumentParser(description='Testing...')
    sf.add_argument_group(parser)
    parsed_args = parser.parse_args(['--variable', 'd', '--prefix', 'X'])
    sf.emit_one(c, d, output, parsed_args)
    actual = output.getvalue()
    assert expected == actual


def test_shell_formatter_formattable_column():
    sf = shell.ShellFormatter()
    c = ('a', 'b', 'c')
    d = ('A', 'B', test_columns.FauxColumn(['the', 'value']))
    expected = '\n'.join([
        'a="A"',
        'b="B"',
        'c="[\'the\', \'value\']"\n',
    ])
    output = six.StringIO()
    args = mock.Mock()
    args.variables = ['a', 'b', 'c']
    args.prefix = ''
    sf.emit_one(c, d, output, args)
    actual = output.getvalue()
    assert expected == actual


def test_shell_formatter_with_non_string_values():
    sf = shell.ShellFormatter()
    c = ('a', 'b', 'c', 'd', 'e')
    d = (True, False, 100, '"esc"', six.text_type('"esc"'))
    expected = 'a="True"\nb="False"\nc="100"\nd="\\"esc\\""\ne="\\"esc\\""\n'
    output = six.StringIO()
    args = mock.Mock()
    args.variables = ['a', 'b', 'c', 'd', 'e']
    args.prefix = ''
    sf.emit_one(c, d, output, args)
    actual = output.getvalue()
    assert expected == actual


def test_shell_formatter_with_non_bash_friendly_values():
    sf = shell.ShellFormatter()
    c = ('a', 'foo-bar', 'provider:network_type')
    d = (True, 'baz', 'vxlan')
    expected = 'a="True"\nfoo_bar="baz"\nprovider_network_type="vxlan"\n'
    output = six.StringIO()
    args = mock.Mock()
    args.variables = ['a', 'foo-bar', 'provider:network_type']
    args.prefix = ''
    sf.emit_one(c, d, output, args)
    actual = output.getvalue()
    assert expected == actual