"""Test the BuildEnvironment class."""
import os
import shutil
from pathlib import Path

import pytest

from sphinx.builders.html import StandaloneHTMLBuilder
from sphinx.builders.latex import LaTeXBuilder
from sphinx.environment import CONFIG_CHANGED, CONFIG_EXTENSIONS_CHANGED, CONFIG_NEW, CONFIG_OK


@pytest.mark.sphinx('dummy', testroot='basic')
def test_config_status(make_app, app_params):
    args, kwargs = app_params

    # clean build
    app1 = make_app(*args, freshenv=True, **kwargs)
    assert app1.env.config_status == CONFIG_NEW
    app1.build()
    assert '[new config] 1 added' in app1._status.getvalue()

    # incremental build (no config changed)
    app2 = make_app(*args, **kwargs)
    assert app2.env.config_status == CONFIG_OK
    app2.build()
    assert "0 added, 0 changed, 0 removed" in app2._status.getvalue()

    # incremental build (config entry changed)
    app3 = make_app(*args, confoverrides={'root_doc': 'indexx'}, **kwargs)
    fname = os.path.join(app3.srcdir, 'index.rst')
    assert os.path.isfile(fname)
    shutil.move(fname, fname[:-4] + 'x.rst')
    assert app3.env.config_status == CONFIG_CHANGED
    app3.build()
    shutil.move(fname[:-4] + 'x.rst', fname)
    assert "[config changed ('root_doc')] 1 added" in app3._status.getvalue()

    # incremental build (extension changed)
    app4 = make_app(*args, confoverrides={'extensions': ['sphinx.ext.autodoc']}, **kwargs)
    assert app4.env.config_status == CONFIG_EXTENSIONS_CHANGED
    app4.build()
    want_str = "[extensions changed ('sphinx.ext.autodoc')] 1 added"
    assert want_str in app4._status.getvalue()


@pytest.mark.sphinx('dummy')
def test_images(app):
    app.build()

    tree = app.env.get_doctree('images')
    htmlbuilder = StandaloneHTMLBuilder(app, app.env)
    htmlbuilder.init()
    htmlbuilder.imgpath = 'dummy'
    htmlbuilder.post_process_images(tree)
    assert set(htmlbuilder.images.keys()) == \
        {'subdir/img.png', 'img.png', 'subdir/simg.png', 'svgimg.svg', 'img.foo.png'}
    assert set(htmlbuilder.images.values()) == \
        {'img.png', 'img1.png', 'simg.png', 'svgimg.svg', 'img.foo.png'}

    latexbuilder = LaTeXBuilder(app, app.env)
    latexbuilder.init()
    latexbuilder.post_process_images(tree)
    assert set(latexbuilder.images.keys()) == \
        {'subdir/img.png', 'subdir/simg.png', 'img.png', 'img.pdf',
         'svgimg.pdf', 'img.foo.png'}
    assert set(latexbuilder.images.values()) == \
        {'img.pdf', 'img.png', 'img1.png', 'simg.png',
         'svgimg.pdf', 'img.foo.png'}


@pytest.mark.sphinx('dummy')
def test_object_inventory(app):
    app.build()
    refs = app.env.domaindata['py']['objects']

    assert 'func_without_module' in refs
    assert refs['func_without_module'] == ('objects', 'func_without_module', 'function', False)
    assert 'func_without_module2' in refs
    assert 'mod.func_in_module' in refs
    assert 'mod.Cls' in refs
    assert 'mod.Cls.meth1' in refs
    assert 'mod.Cls.meth2' in refs
    assert 'mod.Cls.meths' in refs

    assert 'mod.Error' not in refs
    assert 'errmod.Error' in refs

    assert 'func_in_module' not in refs
    assert 'func_noindex' not in refs

    assert app.env.domaindata['py']['modules']['mod'] == \
        ('objects', 'module-mod', 'Module synopsis.', 'UNIX', False)

    assert app.env.domains['py'].data is app.env.domaindata['py']
    assert app.env.domains['c'].data is app.env.domaindata['c']


@pytest.mark.sphinx('dummy', testroot='basic')
def test_env_relfn2path(app):
    # relative filename and root document
    relfn, absfn = app.env.relfn2path('logo.jpg', 'index')
    assert relfn == 'logo.jpg'
    assert absfn == str(app.srcdir / 'logo.jpg')

    # absolute filename and root document
    relfn, absfn = app.env.relfn2path('/logo.jpg', 'index')
    assert relfn == 'logo.jpg'
    assert absfn == str(app.srcdir / 'logo.jpg')

    # relative filename and a document in subdir
    relfn, absfn = app.env.relfn2path('logo.jpg', 'subdir/index')
    assert Path(relfn) == Path('subdir/logo.jpg')
    assert absfn == str(app.srcdir / 'subdir' / 'logo.jpg')

    # absolute filename and a document in subdir
    relfn, absfn = app.env.relfn2path('/logo.jpg', 'subdir/index')
    assert relfn == 'logo.jpg'
    assert absfn == str(app.srcdir / 'logo.jpg')

    # relative filename having subdir
    relfn, absfn = app.env.relfn2path('images/logo.jpg', 'index')
    assert relfn == 'images/logo.jpg'
    assert absfn == str(app.srcdir / 'images' / 'logo.jpg')

    # relative path traversal
    relfn, absfn = app.env.relfn2path('../logo.jpg', 'index')
    assert relfn == '../logo.jpg'
    assert absfn == str(app.srcdir.parent / 'logo.jpg')

    # relative path traversal
    relfn, absfn = app.env.relfn2path('subdir/../logo.jpg', 'index')
    assert relfn == 'logo.jpg'
    assert absfn == str(app.srcdir / 'logo.jpg')

    # omit docname (w/ current docname)
    app.env.temp_data['docname'] = 'subdir/document'
    relfn, absfn = app.env.relfn2path('images/logo.jpg')
    assert Path(relfn) == Path('subdir/images/logo.jpg')
    assert absfn == str(app.srcdir / 'subdir' / 'images' / 'logo.jpg')

    # omit docname (w/o current docname)
    app.env.temp_data.clear()
    with pytest.raises(KeyError):
        app.env.relfn2path('images/logo.jpg')