import os
from pytest import fixture, raises
from pathlib import Path
from rougail import Rougail, RougailConfig
#########################
from rougail.output_environment import RougailOutputEnvironment as RougailOutput
from json import load, dump
#########################

from rougail_tests.utils import get_structures_list, get_rougail_config, get_values_for_config, config_to_dict

EXT = "env"


excludes = [
]

test_ok = get_structures_list(excludes)
# test_ok = [Path('../rougail-tests/structures/60_5family_dynamic_calc_suffix_disabled2')]


def idfn(fixture_value):
    return fixture_value.name


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


def _test_structural_files(test_dir, namespace, ext, change=False):
    rougailconfig = get_rougail_config(test_dir, namespace)
    if not rougailconfig:
        return
#    rougailconfig['tiramisu_cache'] = "cache.py"
    ##################################
    rougailconfig['step.output'] = 'environment'
    dir_name = 'test'
    if change:
        rougailconfig["environment.output.prefix"] = "ROUGAIL_"
        rougailconfig["environment.output.boolean_type"] = "number"
        rougailconfig["environment.output.upper"] = False
        rougailconfig["environment.output.path_is_variable_name"] = False
        rougailconfig["environment.output.multi_in_array"] = False
        dir_name += "_change"
    ##################################
    if namespace:
        dir_name += '_namespace'
    elif (test_dir / 'force_namespace').is_file():
        return
    rougail = Rougail(rougailconfig)
    config = rougail.run()
    ##################################
    get_values_for_config(config, level="mandatory")
    ##################################
    # loads variables in the tiramisu config
    if change and (Path(__file__).parent / 'results' / dir_name / (test_dir.name + ".duplicate")).is_file():
        return
    generated_output = RougailOutput(config, rougailconfig=rougailconfig).run()[1]
    output_file = Path(__file__).parent / 'results' / dir_name / (test_dir.name + "." + ext)
    if not output_file.is_file():
        if not output_file.parent.is_dir():
            output_file.parent.mkdir()
        with output_file.open('w') as outfh:
            outfh.write(generated_output)
    with output_file.open() as outfh:
         attented_output = outfh.read()
    assert generated_output == attented_output, f'filename {output_file}'


def test_structural_files(test_dir):
    "tests the output"
    _test_structural_files(test_dir, False, EXT)


def test_structural_files_namespace(test_dir):
    "tests the output"
    _test_structural_files(test_dir, True, EXT)


def test_structural_files_change(test_dir):
    "tests the output"
    _test_structural_files(test_dir, False, EXT, True)