# Copyright: (c) 2019, Ansible Project
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)

# Make coding more python3-ish
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type

import importlib
import sys

import pytest

from ansible import constants as C
from ansible.errors import AnsibleUndefinedVariable
from ansible.playbook.conditional import Conditional

from units.mock.loader import DictDataLoader


@pytest.fixture
def native_template_mod(monkeypatch):
    monkeypatch.delitem(sys.modules, 'ansible.template')
    monkeypatch.setattr(C, 'DEFAULT_JINJA2_NATIVE', True)
    return importlib.import_module('ansible.template')


# https://github.com/ansible/ansible/issues/52158
def test_undefined_variable(native_template_mod):
    fake_loader = DictDataLoader({})
    variables = {}
    templar = native_template_mod.Templar(loader=fake_loader, variables=variables)
    assert isinstance(templar.environment, native_template_mod.AnsibleNativeEnvironment)

    with pytest.raises(AnsibleUndefinedVariable):
        templar.template("{{ missing }}")


def test_cond_eval(native_template_mod):
    fake_loader = DictDataLoader({})
    # True must be stored in a variable to trigger templating. Using True
    # directly would be caught by optimization for bools to short-circuit
    # templating.
    variables = {"foo": True}
    templar = native_template_mod.Templar(loader=fake_loader, variables=variables)
    assert isinstance(templar.environment, native_template_mod.AnsibleNativeEnvironment)

    cond = Conditional(loader=fake_loader)
    cond.when = ["foo"]
    assert cond.evaluate_conditional(templar, variables)