import json
import sys

import digaws.digaws as digaws
from digaws import __description__, __version__

import pytest

import tests


@pytest.fixture
def test_dig():
    return digaws.DigAWS(ip_ranges=json.loads(
        tests.AWS_IP_RANGES),
        output_fields=digaws.OUTPUT_FIELDS
    )


def test_cli(capsys):
    sys.argv = ['digaws', '-h']
    try:
        digaws.main()
    except SystemExit as e:
        out, _ = capsys.readouterr()
        assert __description__ in out
        assert e.code == 0


def test_cli_version(capsys, mocker):
    sys.argv = ['digaws', '--version']
    try:
        digaws.main()
    except SystemExit as e:
        out, _ = capsys.readouterr()
        assert out == f'digaws {__version__}\n'
        assert e.code == 0


def test_cli_invocation(capsys, mocker):
    sys.argv = ['digaws', '52.94.76.0/22', '2600:1f14:fff:f810:a1c1:f507:a2d1:2dd8',
                '--output', 'json']
    mocker.patch('digaws.digaws.get_aws_ip_ranges', return_value=json.loads(tests.AWS_IP_RANGES))
    digaws.main()
    out, _ = capsys.readouterr()

    assert out == tests.RESPONSE_JSON_JOINED_PRINT


def test_cli_output_plain_fields_invocation(capsys, mocker):
    sys.argv = ['digaws', '52.94.76.0/22', '--output=plain', '--output-fields', 'region']
    mocker.patch('digaws.digaws.get_aws_ip_ranges', return_value=json.loads(tests.AWS_IP_RANGES))
    digaws.main()
    out, _ = capsys.readouterr()

    assert out == 'Region: us-west-2\n\n'


def test_cli_output_json_fields_invocation(capsys, mocker):
    sys.argv = ['digaws', '2600:1f14:fff:f810:a1c1:f507:a2d1:2dd8', '--output=json',
                '--output-fields', 'service', 'network_border_group']
    mocker.patch('digaws.digaws.get_aws_ip_ranges', return_value=json.loads(tests.AWS_IP_RANGES))
    digaws.main()
    out, _ = capsys.readouterr()

    assert out == tests.RESPONSE_JSON_FIELDS_PRINT


def test_dig_aws_construct(test_dig):
    assert test_dig.ip_prefixes == tests.AWS_IPV4_RANGES_OBJ
    assert test_dig.ipv6_prefixes == tests.AWS_IPV6_RANGES_OBJ


def test_lookup(test_dig):
    assert str(test_dig._lookup_data('52.94.76.1')[0]['ip_prefix']) == '52.94.76.0/22'
    assert str(test_dig._lookup_data('52.94.76.0/24')[0]['ip_prefix']) == '52.94.76.0/22'

    input = '2600:1f14:fff:f810:a1c1:f507:a2d1:2dd8'
    assert str(test_dig._lookup_data(input)[0]['ipv6_prefix']) == '2600:1f14:fff:f800::/53'
    assert str(test_dig._lookup_data(input)[1]['ipv6_prefix']) == '2600:1f14::/35'
    assert str(test_dig._lookup_data('2600:1f14::/36')[0]['ipv6_prefix']) == '2600:1f14::/35'

    with pytest.raises(ValueError) as e:
        test_dig.lookup('what are you talking about')
        assert e.startswith('Wrong IP or CIDR format')


def test_response_plain_print(test_dig, capsys):
    test_dig.lookup('52.94.76.0/22').plain_print()
    out, _ = capsys.readouterr()

    assert out == tests.RESPONSE_PLAIN_PRINT


def test_response_json_print(test_dig, capsys):
    test_dig.lookup('2600:1f14:fff:f810:a1c1:f507:a2d1:2dd8').json_print()
    out, _ = capsys.readouterr()

    assert out == tests.RESPONSE_JSON_PRINT