# coding: utf-8

# Python libs
from __future__ import absolute_import

# Salt libs
import salt.beacons.glxinfo as glxinfo

# Import test suite libs
from tests.support.mixins import LoaderModuleMockMixin
from tests.support.mock import Mock, patch

# Salt testing libs
from tests.support.unit import TestCase


class GLXInfoBeaconTestCase(TestCase, LoaderModuleMockMixin):
    """
    Test case for salt.beacons.glxinfo
    """

    def setup_loader_modules(self):
        return {glxinfo: {"last_state": {}}}

    def test_no_glxinfo_command(self):
        with patch("salt.utils.path.which") as mock:
            mock.return_value = None

            ret = glxinfo.__virtual__()

            mock.assert_called_once_with("glxinfo")
            self.assertFalse(ret)

    def test_with_glxinfo_command(self):
        with patch("salt.utils.path.which") as mock:
            mock.return_value = "/usr/bin/glxinfo"

            ret = glxinfo.__virtual__()

            mock.assert_called_once_with("glxinfo")
            self.assertEqual(ret, "glxinfo")

    def test_non_list_config(self):
        config = {}

        ret = glxinfo.validate(config)

        self.assertEqual(
            ret, (False, "Configuration for glxinfo beacon must be a list.")
        )

    def test_no_user(self):
        config = [{"screen_event": True}]

        _expected = (
            False,
            "Configuration for glxinfo beacon must "
            "include a user as glxinfo is not "
            "available to root.",
        )
        ret = glxinfo.validate(config)
        self.assertEqual(ret, _expected)

    def test_screen_state(self):
        config = [{"screen_event": True, "user": "frank"}]

        mock = Mock(return_value=0)
        with patch.dict(glxinfo.__salt__, {"cmd.retcode": mock}):

            ret = glxinfo.validate(config)
            self.assertEqual(ret, (True, "Valid beacon configuration"))

            ret = glxinfo.beacon(config)
            self.assertEqual(ret, [{"tag": "screen_event", "screen_available": True}])
            mock.assert_called_once_with(
                "DISPLAY=:0 glxinfo", runas="frank", python_shell=True
            )

    def test_screen_state_missing(self):
        config = [{"screen_event": True, "user": "frank"}]

        mock = Mock(return_value=255)
        with patch.dict(glxinfo.__salt__, {"cmd.retcode": mock}):
            ret = glxinfo.validate(config)
            self.assertEqual(ret, (True, "Valid beacon configuration"))

            ret = glxinfo.beacon(config)
            self.assertEqual(ret, [{"tag": "screen_event", "screen_available": False}])

    def test_screen_state_no_repeat(self):
        config = [{"screen_event": True, "user": "frank"}]

        mock = Mock(return_value=255)
        with patch.dict(glxinfo.__salt__, {"cmd.retcode": mock}):
            ret = glxinfo.validate(config)
            self.assertEqual(ret, (True, "Valid beacon configuration"))

            ret = glxinfo.beacon(config)
            self.assertEqual(ret, [{"tag": "screen_event", "screen_available": False}])

            ret = glxinfo.beacon(config)
            self.assertEqual(ret, [])

    def test_screen_state_change(self):
        config = [{"screen_event": True, "user": "frank"}]

        mock = Mock(side_effect=[255, 0])
        with patch.dict(glxinfo.__salt__, {"cmd.retcode": mock}):
            ret = glxinfo.validate(config)
            self.assertEqual(ret, (True, "Valid beacon configuration"))

            ret = glxinfo.beacon(config)
            self.assertEqual(ret, [{"tag": "screen_event", "screen_available": False}])

            ret = glxinfo.beacon(config)
            self.assertEqual(ret, [{"tag": "screen_event", "screen_available": True}])