from os import listdir, mkdir
from os.path import join, isdir, isfile
from shutil import rmtree
from pytest import fixture
from lxml.etree import parse
from tiramisu import Config

from rougail import template, load
from rougail.config import dtdfilename


template_dirs = 'tests/templates'
test_ok = listdir(template_dirs)


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


def test_dictionary(test_dir):
    test_dir = join(template_dirs, test_dir)
    tmp_dir = join(test_dir, 'tmp')
    funcs_file = join(template_dirs, '../eosfunc/test.py')
    distrib_dir = join(test_dir, 'tmpl')
    if isdir(tmp_dir):
        rmtree(tmp_dir)
    mkdir(tmp_dir)
    dest_dir = join(test_dir, 'dest')
    if isdir(dest_dir):
        rmtree(dest_dir)
    mkdir(dest_dir)
    with open(join(test_dir, '00-base.xml')) as fileio:
        xmlroot = parse(fileio).getroot()
        optiondescription = load(xmlroot,
                                 dtdfilename,
                                 funcs_file)

    config = Config(optiondescription)
    config.property.read_only()
    template.generate(config,
                      funcs_file,
                      distrib_dir,
                      tmp_dir,
                      dest_dir)

    if isdir(join(dest_dir, 'test')):
        list_templates = set(listdir(join(dest_dir, 'test')))
    else:
        list_templates = set()
    list_results = set(listdir(join(test_dir, 'result')))
    assert list_templates == list_results
    for result in listdir(join(test_dir, 'result')):
        template_file = join(dest_dir, 'test', result)
        if not isfile(template_file):
            raise Exception(f'{template_file} is not generated')
        with open(join(test_dir, 'result', result), 'r') as fh:
            result_file = fh.read()
        with open(template_file, 'r') as fh:
            generated_file = fh.read()
        assert result_file == generated_file