# -*- coding: utf-8 -*-

# Import Python libs
from __future__ import absolute_import, print_function, unicode_literals

import salt.serializers.yamlex as yamlex

# Import Salt libs
import salt.state
from salt.config import minion_config
from salt.template import compile_template_str

# Import Salt Testing libs
from tests.support.mixins import LoaderModuleMockMixin
from tests.support.unit import TestCase, skipIf

basic_template = """#!yamlex
foo: bar
"""

complex_template = """#!yamlex
placeholder: {foo: !aggregate {foo: 42}}
placeholder: {foo: !aggregate {bar: null}}
placeholder: {foo: !aggregate {baz: inga}}
"""

SKIP_MESSAGE = "%s is unavailable, do prerequisites have been met?"


class RendererMixin(object):
    def render(self, template, opts=None):
        _config = minion_config(None)
        _config["file_client"] = "local"
        if opts:
            _config.update(opts)
        _state = salt.state.State(_config)
        return compile_template_str(
            template,
            _state.rend,
            _state.opts["renderer"],
            _state.opts["renderer_blacklist"],
            _state.opts["renderer_whitelist"],
        )


class RendererTests(TestCase, RendererMixin, LoaderModuleMockMixin):
    def setup_loader_modules(self):
        return {yamlex: {}}

    @skipIf(not yamlex.available, SKIP_MESSAGE % "yamlex")
    def test_basic(self):
        sls_obj = self.render(basic_template)
        assert sls_obj == {"foo": "bar"}, sls_obj

    @skipIf(not yamlex.available, SKIP_MESSAGE % "yamlex")
    def test_complex(self):

        sls_obj = self.render(complex_template)
        assert sls_obj == {
            "placeholder": {"foo": {"foo": 42, "bar": None, "baz": "inga"}}
        }, sls_obj