from lxml import etree
from os import getcwd
from os.path import isfile, join, isdir
from pytest import fixture, raises
from os import listdir
from json import load

from rougail import objspace, annotator
from rougail.xml_compare import xml_compare
from rougail.error import DictConsistencyError
from rougail.config import Config



dico_dirs = 'tests/dictionaries'


test_ok = set()
test_raise = set()

for test in listdir(dico_dirs):
    if isdir(join(dico_dirs, test)):
        if isdir(join(dico_dirs, test, 'tiramisu')):
            test_ok.add(test)
        elif test != '__pycache__':
            test_raise.add(test)

excludes = set([])
#excludes = set(['01base_file_utfchar'])
test_ok -= excludes
test_raise -= excludes
#test_ok = ['10leadership_autoleader']
#test_raise = []

ORI_DIR = getcwd()

debug = False
#debug = True

test_ok = list(test_ok)
test_raise = list(test_raise)
test_ok.sort()
test_raise.sort()


@fixture(scope="module", params=test_ok)
def test_dir(request):
    return request.param


@fixture(scope="module", params=test_raise)
def test_dir_error(request):
    return request.param


def compare_xml(exported_xmlfile, expected_xmlfile):
    exported_document = etree.parse(exported_xmlfile).getroot()
    expected_document = etree.parse(expected_xmlfile).getroot()
    try:
        assert xml_compare(exported_document, expected_document)
    except AssertionError as err:
        print()
        print('Le dictionnaire exporte :')
        print()
        print(etree.tostring(exported_document, pretty_print=True, encoding="UTF-8").decode())
        print()
        print('Le dictionnaire attendu :')
        print()
        print(etree.tostring(expected_document, pretty_print=True, encoding="UTF-8").decode())
        raise err


def launch_flattener(test_dir, test_ok=False):
    eolobj = objspace.CreoleObjSpace(Config['dtdfilename'])
    dirs = [test_dir]
    subfolder = join(test_dir, 'subfolder')
    if isdir(subfolder):
        dirs.append(subfolder)
    eolobj.create_or_populate_from_xml(Config['variable_namespace'], dirs)
    subfolder = join(test_dir, 'extra_dirs', 'extra')
    if isdir(subfolder):
        eolobj.create_or_populate_from_xml('extra', [subfolder])
    subfolder = join(test_dir, 'extra_dirs', 'extra1')
    if isdir(subfolder):
        eolobj.create_or_populate_from_xml('extra1', [subfolder])
    eosfunc = join(dico_dirs, '../eosfunc/test.py')
    Config['patch_dir'] = join(test_dir, 'patches')
    eolobj.space_visitor(eosfunc)
    tiramisu_objects = eolobj.save()
    tiramisu_dir = join(test_dir, 'tiramisu')
    tiramisu_file = join(tiramisu_dir, 'base.py')
    if not isfile(tiramisu_file) or debug:
        with open(tiramisu_file, 'w') as fh:
            fh.write(tiramisu_objects)
    with open(tiramisu_file, 'r') as fh:
        tiramisu_objects_ori = fh.read()
    assert tiramisu_objects == tiramisu_objects_ori


def fake_traduc(txt):
    return txt


def setup_module(module):
    module.traduc_ori = objspace._
    objspace._ = fake_traduc
    annotator._ = fake_traduc
    objspace.ServiceAnnotator = getattr(annotator, 'ServiceAnnotator')


def teardown_module(module):
    objspace._ = module.traduc_ori
    annotator._ = module.traduc_ori


def test_dictionary(test_dir):
    assert getcwd() == ORI_DIR
    test_dir = join(dico_dirs, test_dir)
    launch_flattener(test_dir, True)
    assert getcwd() == ORI_DIR


def test_error_dictionary(test_dir_error):
    assert getcwd() == ORI_DIR
    test_dir = join(dico_dirs, test_dir_error)
    with raises(DictConsistencyError):
        launch_flattener(test_dir)
    assert getcwd() == ORI_DIR


def test_no_dtd():
    with raises(IOError):
        eolobj = objspace.CreoleObjSpace('notexists.dtd')