import shutil

import pytest

from pre_commit_hooks.pretty_format_json import parse_indent
from pre_commit_hooks.pretty_format_json import pretty_format_json
from testing.util import get_resource_path


def test_parse_indent():
    assert parse_indent('0') == ''
    assert parse_indent('2') == '  '
    assert parse_indent('\t') == '\t'
    with pytest.raises(ValueError):
        parse_indent('a')
    with pytest.raises(ValueError):
        parse_indent('-2')


@pytest.mark.parametrize(
    ('filename', 'expected_retval'), (
        ('not_pretty_formatted_json.json', 1),
        ('unsorted_pretty_formatted_json.json', 1),
        ('non_ascii_pretty_formatted_json.json', 1),
        ('pretty_formatted_json.json', 0),
    ),
)
def test_pretty_format_json(filename, expected_retval):
    ret = pretty_format_json([get_resource_path(filename)])
    assert ret == expected_retval


@pytest.mark.parametrize(
    ('filename', 'expected_retval'), (
        ('not_pretty_formatted_json.json', 1),
        ('unsorted_pretty_formatted_json.json', 0),
        ('non_ascii_pretty_formatted_json.json', 1),
        ('pretty_formatted_json.json', 0),
    ),
)
def test_unsorted_pretty_format_json(filename, expected_retval):
    ret = pretty_format_json(['--no-sort-keys', get_resource_path(filename)])
    assert ret == expected_retval


@pytest.mark.parametrize(
    ('filename', 'expected_retval'), (
        ('not_pretty_formatted_json.json', 1),
        ('unsorted_pretty_formatted_json.json', 1),
        ('non_ascii_pretty_formatted_json.json', 1),
        ('pretty_formatted_json.json', 1),
        ('tab_pretty_formatted_json.json', 0),
    ),
)
def test_tab_pretty_format_json(filename, expected_retval):
    ret = pretty_format_json(['--indent', '\t', get_resource_path(filename)])
    assert ret == expected_retval


def test_non_ascii_pretty_format_json():
    ret = pretty_format_json(['--no-ensure-ascii', get_resource_path('non_ascii_pretty_formatted_json.json')])
    assert ret == 0


def test_autofix_pretty_format_json(tmpdir):
    srcfile = tmpdir.join('to_be_json_formatted.json')
    shutil.copyfile(
        get_resource_path('not_pretty_formatted_json.json'),
        srcfile.strpath,
    )

    # now launch the autofix on that file
    ret = pretty_format_json(['--autofix', srcfile.strpath])
    # it should have formatted it
    assert ret == 1

    # file was formatted (shouldn't trigger linter again)
    ret = pretty_format_json([srcfile.strpath])
    assert ret == 0


def test_orderfile_get_pretty_format():
    ret = pretty_format_json(['--top-keys=alist', get_resource_path('pretty_formatted_json.json')])
    assert ret == 0


def test_not_orderfile_get_pretty_format():
    ret = pretty_format_json(['--top-keys=blah', get_resource_path('pretty_formatted_json.json')])
    assert ret == 1


def test_top_sorted_get_pretty_format():
    ret = pretty_format_json(['--top-keys=01-alist,alist', get_resource_path('top_sorted_json.json')])
    assert ret == 0


def test_badfile_pretty_format_json():
    ret = pretty_format_json([get_resource_path('ok_yaml.yaml')])
    assert ret == 1