# -*- coding: utf-8 -*-
"""
    test_util
    ~~~~~~~~~~~~~~~

    Tests util functions.

    :copyright: Copyright 2007-2018 by the Sphinx team, see AUTHORS.
    :license: BSD, see LICENSE for details.
"""

import pytest
from mock import patch

from sphinx.util import logging
from sphinx.util import (
    display_chunk, encode_uri, parselinenos, split_docinfo, status_iterator,
    xmlname_checker
)

from sphinx.testing.util import strip_escseq


def test_encode_uri():
    expected = (u'https://ru.wikipedia.org/wiki/%D0%A1%D0%B8%D1%81%D1%82%D0%B5%D0%BC%D0%B0_'
                u'%D1%83%D0%BF%D1%80%D0%B0%D0%B2%D0%BB%D0%B5%D0%BD%D0%B8%D1%8F_'
                u'%D0%B1%D0%B0%D0%B7%D0%B0%D0%BC%D0%B8_%D0%B4%D0%B0%D0%BD%D0%BD%D1%8B%D1%85')
    uri = (u'https://ru.wikipedia.org/wiki'
           u'/Система_управления_базами_данных')
    assert expected, encode_uri(uri)

    expected = (u'https://github.com/search?utf8=%E2%9C%93&q=is%3Aissue+is%3Aopen+is%3A'
                u'sprint-friendly+user%3Ajupyter&type=Issues&ref=searchresults')
    uri = (u'https://github.com/search?utf8=✓&q=is%3Aissue+is%3Aopen+is%3A'
           u'sprint-friendly+user%3Ajupyter&type=Issues&ref=searchresults')
    assert expected, encode_uri(uri)


def test_splitdocinfo():
    source = "Hello world.\n"
    docinfo, content = split_docinfo(source)
    assert docinfo == ''
    assert content == 'Hello world.\n'

    source = ":orphan:\n\nHello world.\n"
    docinfo, content = split_docinfo(source)
    assert docinfo == ':orphan:\n'
    assert content == '\nHello world.\n'

    source = ":author: Georg Brandl\n:title: Manual of Sphinx\n\nHello world.\n"
    docinfo, content = split_docinfo(source)
    assert docinfo == ':author: Georg Brandl\n:title: Manual of Sphinx\n'
    assert content == '\nHello world.\n'

    source = ":multiline: one\n\ttwo\n\tthree\n\nHello world.\n"
    docinfo, content = split_docinfo(source)
    assert docinfo == ":multiline: one\n\ttwo\n\tthree\n"
    assert content == '\nHello world.\n'


def test_display_chunk():
    assert display_chunk('hello') == 'hello'
    assert display_chunk(['hello']) == 'hello'
    assert display_chunk(['hello', 'sphinx', 'world']) == 'hello .. world'
    assert display_chunk(('hello',)) == 'hello'
    assert display_chunk(('hello', 'sphinx', 'world')) == 'hello .. world'


@pytest.mark.sphinx('dummy')
@patch('sphinx.util.console._tw', 40)  # terminal width = 40
def test_status_iterator(app, status, warning):
    logging.setup(app, status, warning)

    # test for old_status_iterator
    status.truncate(0)
    yields = list(status_iterator(['hello', 'sphinx', 'world'], 'testing ... '))
    output = strip_escseq(status.getvalue())
    assert 'testing ... hello sphinx world \n' in output
    assert yields == ['hello', 'sphinx', 'world']

    # test for status_iterator (verbosity=0)
    status.truncate(0)
    yields = list(status_iterator(['hello', 'sphinx', 'world'], 'testing ... ',
                                  length=3, verbosity=0))
    output = strip_escseq(status.getvalue())
    assert 'testing ... [ 33%] hello                \r' in output
    assert 'testing ... [ 66%] sphinx               \r' in output
    assert 'testing ... [100%] world                \r\n' in output
    assert yields == ['hello', 'sphinx', 'world']

    # test for status_iterator (verbosity=1)
    status.truncate(0)
    yields = list(status_iterator(['hello', 'sphinx', 'world'], 'testing ... ',
                                  length=3, verbosity=1))
    output = strip_escseq(status.getvalue())
    assert 'testing ... [ 33%] hello\n' in output
    assert 'testing ... [ 66%] sphinx\n' in output
    assert 'testing ... [100%] world\n\n' in output
    assert yields == ['hello', 'sphinx', 'world']


def test_parselinenos():
    assert parselinenos('1,2,3', 10) == [0, 1, 2]
    assert parselinenos('4, 5, 6', 10) == [3, 4, 5]
    assert parselinenos('-4', 10) == [0, 1, 2, 3]
    assert parselinenos('7-9', 10) == [6, 7, 8]
    assert parselinenos('7-', 10) == [6, 7, 8, 9]
    assert parselinenos('1,7-', 10) == [0, 6, 7, 8, 9]
    assert parselinenos('7-7', 10) == [6]
    assert parselinenos('11-', 10) == [10]
    with pytest.raises(ValueError):
        parselinenos('1-2-3', 10)
    with pytest.raises(ValueError):
        parselinenos('abc-def', 10)
    with pytest.raises(ValueError):
        parselinenos('-', 10)
    with pytest.raises(ValueError):
        parselinenos('3-1', 10)



def test_xmlname_check():
    checker = xmlname_checker()
    assert checker.match('id-pub')
    assert checker.match('webpage')
    assert not checker.match('1bfda21')
