from .custom import CustomOption

from pathlib import Path
import os
import json
    
from pytest import fixture
from ruamel.yaml import YAML
from dotenv import load_dotenv

from rougail import RougailConfig, Rougail
from rougail.user_data_environment.data import RougailUserDataEnvironment


dico_dirs = Path('../rougail/tests/dictionaries')
env_test_folder = '00_6string'
test_ok = [dico_dirs / env_test_folder]


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


def _test_dictionaries(test_dir):
    "rougail config settings"
    rougailconfig = RougailConfig.copy()
    rougailconfig['step.user_data'] = ['environment']
    rougailconfig['main_namespace'] = None
    dirs = [str(test_dir / 'dictionaries' / 'rougail')]
    rougailconfig['custom_types']['custom'] = CustomOption
    rougailconfig['main_dictionaries'] = dirs
    return rougailconfig


def test_dictionaries_warning(test_dir):
    "tests the '00_6string' folder"
    rougailconfig = _test_dictionaries(test_dir)
    # populate tests if not already exists
    dest_dir = Path('tests') / 'envvars' / test_dir.name
    populate(dest_dir, rougailconfig)
    # loads the config in the tiramisu's meaning
    config = Rougail(rougailconfig).run() #Config(optiondescription["option_0"])
    config_dict = dict(config.value.get())
    user_datas = {'errors': [],
                   'warnings': [],
                   }
    # loading the env file
    envfile = dest_dir / 'env'
    load_dotenv(envfile)
    # loads the environment variables in the tiramisu config
    environment = RougailUserDataEnvironment(config,
                                              rougailconfig=rougailconfig,
                                              user_datas=user_datas,
                                              )
    environment.run()
    new_config = environment.config
    new_config_dict = dict(new_config.value.get())
    # expected output
    with open(Path('tests') / 'makedict' / env_test_folder / 'output.json') as json_file:
        expected = json.load(json_file)
    # here is the effective test
    for key, value in new_config_dict.items():
        assert expected["rougail."+key.name()] == value


def populate(dest_dir, rougailconfig):
    for level in ['all', 'mandatories']:
        environment_file = dest_dir / 'env' / f'{level}.env'
        makedict_file = dest_dir / 'makedict' / f'{level}.env'
        if not environment_file.is_file() or not makedict.is_file():
            config = Rougail(rougailconfig).run()
            if level == 'all':
                root_config = config.unrestraint
            else:
                root_config = config.unrestraint.value.mandatory()
            values = ['ROUGAIL_' + variable.path().upper() + '="' + get_value(variable) + '"' for variable in get_variables(root_config)]
        if not environment_file.is_file():
            with environment_file.open('w') as envfh:
                envfh.write('\n'.join(values) + '\n')
        if  not makedict.is_file():
            with environment_file.open('w') as envfh:
                envfh.write('\n'.join(values) + '\n')


def get_value(variable):
    tests = variable.information.get('test', None)
    if not tests:
        if variable.type() == 'integer':
            tests = [1, 2, 3]
        elif variable.type() == 'float':
            tests = [1.1, 2.2, 3.3]
        elif variable.type() == 'port':
            tests = ['80', '443']
        elif variable.type() == 'boolean':
            tests = [True]
        elif variable.type() == 'domain name':
            tests = ['domain1.lan', 'domain2.lan']
        elif variable.type() == 'choice':
            tests = variable.value.list()
        else:
            tests = ['string1', 'string2', 'string3']
    if not variable.ismulti() or (variable.isfollower() and variable.ismulti() is True):
        tests = tests[0]
    variable.value.set(tests)
    if isinstance(tests, list):
        tests = ','.join([str(test) for test in tests])
    else:
        tests = str(tests)
    return tests


def get_variables(config):
    for key in config:
        if key.isoptiondescription():
            yield from get_variables(key)
        else:
            yield key


def option_value(parent, key_is_option=False):
    for option, value in parent.items():
        if option.isoptiondescription():
            if not key_is_option and option.isleadership():
                ret = []
                for idx, datas in enumerate(option_value(value, key_is_option=True)):
                    sub_option, sub_value = datas
                    if not idx:
                        sub_option = sub_option.path()
                        key = sub_option
                        for val in sub_value:
                            ret.append({sub_option: val})
                    else:
                        index = sub_option.index()
                        sub_option = sub_option.path()
                        ret[index][sub_option] = sub_value
                yield key, ret
            else:
                yield from option_value(value, key_is_option)
        elif key_is_option:
            yield option, value
        else:
            yield option.path(), value