#!/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 json
import six

from cliff.formatters import json_format
from cliff.tests import test_columns

import mock


def test_json_format_one():
    sf = json_format.JSONFormatter()
    c = ('a', 'b', 'c', 'd')
    d = ('A', 'B', 'C', '"escape me"')
    expected = {
        'a': 'A',
        'b': 'B',
        'c': 'C',
        'd': '"escape me"'
    }
    args = mock.Mock()
    sf.add_argument_group(args)

    args.noindent = True
    output = six.StringIO()
    sf.emit_one(c, d, output, args)
    value = output.getvalue()
    print(len(value.splitlines()))
    assert 1 == len(value.splitlines())
    actual = json.loads(value)
    assert expected == actual

    args.noindent = False
    output = six.StringIO()
    sf.emit_one(c, d, output, args)
    value = output.getvalue()
    assert 6 == len(value.splitlines())
    actual = json.loads(value)
    assert expected == actual


def test_json_format_formattablecolumn_one():
    sf = json_format.JSONFormatter()
    c = ('a', 'b', 'c', 'd')
    d = ('A', 'B', 'C', test_columns.FauxColumn(['the', 'value']))
    expected = {
        'a': 'A',
        'b': 'B',
        'c': 'C',
        'd': ['the', 'value'],
    }
    args = mock.Mock()
    sf.add_argument_group(args)

    args.noindent = True
    output = six.StringIO()
    sf.emit_one(c, d, output, args)
    value = output.getvalue()
    print(len(value.splitlines()))
    assert 1 == len(value.splitlines())
    actual = json.loads(value)
    assert expected == actual


def test_json_format_list():
    sf = json_format.JSONFormatter()
    c = ('a', 'b', 'c')
    d = (
        ('A1', 'B1', 'C1'),
        ('A2', 'B2', 'C2'),
        ('A3', 'B3', 'C3')
    )
    expected = [
        {'a': 'A1', 'b': 'B1', 'c': 'C1'},
        {'a': 'A2', 'b': 'B2', 'c': 'C2'},
        {'a': 'A3', 'b': 'B3', 'c': 'C3'}
    ]
    args = mock.Mock()
    sf.add_argument_group(args)

    args.noindent = True
    output = six.StringIO()
    sf.emit_list(c, d, output, args)
    value = output.getvalue()
    assert 1 == len(value.splitlines())
    actual = json.loads(value)
    assert expected == actual

    args.noindent = False
    output = six.StringIO()
    sf.emit_list(c, d, output, args)
    value = output.getvalue()
    assert 17 == len(value.splitlines())
    actual = json.loads(value)
    assert expected == actual


def test_json_format_formattablecolumn_list():
    sf = json_format.JSONFormatter()
    c = ('a', 'b', 'c')
    d = (
        ('A1', 'B1', test_columns.FauxColumn(['the', 'value'])),
    )
    expected = [
        {'a': 'A1', 'b': 'B1', 'c': ['the', 'value']},
    ]
    args = mock.Mock()
    sf.add_argument_group(args)

    args.noindent = True
    output = six.StringIO()
    sf.emit_list(c, d, output, args)
    value = output.getvalue()
    assert 1 == len(value.splitlines())
    actual = json.loads(value)
    assert expected == actual