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

    Test the autosummary extension.

    :copyright: Copyright 2007-2017 by the Sphinx team, see AUTHORS.
    :license: BSD, see LICENSE for details.
"""

from six import iteritems, StringIO

from sphinx.ext.autosummary import mangle_signature

from util import etree_parse

import pytest

html_warnfile = StringIO()


default_kw = {
    'testroot': 'autosummary',
    'confoverrides': {
        'extensions': ['sphinx.ext.autosummary'],
        'autosummary_generate': True,
        'source_suffix': '.rst'
    }
}


def test_mangle_signature():
    TEST = """
    () :: ()
    (a, b, c, d, e) :: (a, b, c, d, e)
    (a, b, c=1, d=2, e=3) :: (a, b[, c, d, e])
    (a, b, aaa=1, bbb=1, ccc=1, eee=1, fff=1, ggg=1, hhh=1, iii=1, jjj=1)\
    :: (a, b[, aaa, bbb, ccc, ...])
    (a, b, c=(), d=<foo>) :: (a, b[, c, d])
    (a, b, c='foobar()', d=123) :: (a, b[, c, d])
    (a, b[, c]) :: (a, b[, c])
    (a, b[, cxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx]) :: (a, b[, ...)
    (a, b='c=d, e=f, g=h', c=3) :: (a[, b, c])
    (a, b='c=d, \\'e=f,\\' g=h', c=3) :: (a[, b, c])
    (a, b='c=d, ', e='\\\\' g=h, c=3) :: (a[, b, e, c])
    (a, b={'c=d, ': 3, '\\\\': 3}) :: (a[, b])
    (a=1, b=2, c=3) :: ([a, b, c])
    (a=1, b=<SomeClass: a, b, c>, c=3) :: ([a, b, c])
    """

    TEST = [[y.strip() for y in x.split("::")] for x in TEST.split("\n")
            if '::' in x]
    for inp, outp in TEST:
        res = mangle_signature(inp).strip().replace(u"\u00a0", " ")
        assert res == outp, (u"'%s' -> '%s' != '%s'" % (inp, res, outp))


@pytest.mark.sphinx('dummy', **default_kw)
def test_get_items_summary(app, status, warning):
    # monkey-patch Autosummary.get_items so we can easily get access to it's
    # results..
    import sphinx.ext.autosummary
    orig_get_items = sphinx.ext.autosummary.Autosummary.get_items

    autosummary_items = {}

    def new_get_items(self, names, *args, **kwargs):
        results = orig_get_items(self, names, *args, **kwargs)
        for name, result in zip(names, results):
            autosummary_items[name] = result
        return results

    def handler(app, what, name, obj, options, lines):
        assert isinstance(lines, list)
    app.connect('autodoc-process-docstring', handler)

    sphinx.ext.autosummary.Autosummary.get_items = new_get_items
    try:
        app.builder.build_all()
    finally:
        sphinx.ext.autosummary.Autosummary.get_items = orig_get_items

    html_warnings = warning.getvalue()
    assert html_warnings == ''

    expected_values = {
        'withSentence': 'I have a sentence which spans multiple lines.',
        'noSentence': "this doesn't start with a",
        'emptyLine': "This is the real summary",
        'module_attr': 'This is a module attribute',
        'C.class_attr': 'This is a class attribute',
        'C.prop_attr1': 'This is a function docstring',
        'C.prop_attr2': 'This is a attribute docstring',
        'C.C2': 'This is a nested inner class docstring',
    }
    for key, expected in iteritems(expected_values):
        assert autosummary_items[key][2] == expected, 'Summary for %s was %r -'\
            ' expected %r' % (key, autosummary_items[key], expected)

    # check an item in detail
    assert 'func' in autosummary_items
    func_attrs = ('func',
                  '(arg_, *args, **kwargs)',
                  'Test function take an argument ended with underscore.',
                  'dummy_module.func')
    assert autosummary_items['func'] == func_attrs

def str_content(elem):
    if elem.text is not None:
        return elem.text
    else:
        return ''.join(str_content(e) for e in elem)

@pytest.mark.sphinx('xml', **default_kw)
def test_escaping(app, status, warning):
    from xml.etree import ElementTree

    app.builder.build_all()

    outdir = app.builder.outdir

    docpage = outdir / 'underscore_module_.xml'
    assert docpage.exists()

    title = etree_parse(docpage).find('section/title')

    assert str_content(title) == 'underscore_module_'