# -*- coding: utf-8 -*-
'''
    :codeauthor: :email:`Nicole Thomas <nicole@saltstack.com>`
'''

# Import Python Libs
from __future__ import absolute_import
import os

# Import Salt Testing Libs
from tests.support.case import ModuleCase
from tests.support.unit import skipIf
from tests.support.helpers import destructiveTest

# Import Salt Libs
import salt.utils
from salt.exceptions import CommandExecutionError

# Import third party libs
import salt.ext.six as six

# Brew doesn't support local package installation - So, let's
# Grab some small packages available online for brew
ADD_PKG = 'algol68g'
DEL_PKG = 'acme'


@destructiveTest
@skipIf(not salt.utils.is_darwin(), 'Test only applies to macOS')
@skipIf(os.geteuid() != 0, 'You must be logged in as root to run this test')
@skipIf(not salt.utils.which('brew'), 'This test requires the brew binary')
class BrewModuleTest(ModuleCase):
    '''
    Integration tests for the brew module
    '''
    def test_brew_install(self):
        '''
        Tests the installation of packages
        '''
        try:
            self.run_function('pkg.install', [ADD_PKG])
            pkg_list = self.run_function('pkg.list_pkgs')
            try:
                self.assertIn(ADD_PKG, pkg_list)
            except AssertionError:
                self.run_function('pkg.remove', [ADD_PKG])
                raise
        except CommandExecutionError:
            self.run_function('pkg.remove', [ADD_PKG])
            raise

    def test_remove(self):
        '''
        Tests the removal of packages
        '''
        try:
            # Install a package to delete - If unsuccessful, skip the test
            self.run_function('pkg.install', [DEL_PKG])
            pkg_list = self.run_function('pkg.list_pkgs')
            if DEL_PKG not in pkg_list:
                self.run_function('pkg.install', [DEL_PKG])
                self.skipTest('Failed to install a package to delete')

            # Now remove the installed package
            self.run_function('pkg.remove', [DEL_PKG])
            del_list = self.run_function('pkg.list_pkgs')
            try:
                self.assertNotIn(DEL_PKG, del_list)
            except AssertionError:
                raise
        except CommandExecutionError:
            self.run_function('pkg.remove', [DEL_PKG])
            raise

    def test_version(self):
        '''
        Test pkg.version for mac. Installs a package and then checks we can get
        a version for the installed package.
        '''
        try:
            self.run_function('pkg.install', [ADD_PKG])
            pkg_list = self.run_function('pkg.list_pkgs')
            version = self.run_function('pkg.version', [ADD_PKG])
            try:
                self.assertTrue(version,
                                msg=('version: {0} is empty,\
                                or other issue is present'.format(version)))
                self.assertIn(ADD_PKG, pkg_list,
                              msg=('package: {0} is not in\
                              the list of installed packages: {1}'
                              .format(ADD_PKG, pkg_list)))
                #make sure the version is accurate and is listed in the pkg_list
                self.assertIn(version, str(pkg_list[ADD_PKG]),
                              msg=('The {0} version: {1} is \
                              not listed in the pkg_list: {2}'
                              .format(ADD_PKG, version, pkg_list[ADD_PKG])))
            except AssertionError:
                self.run_function('pkg.remove', [ADD_PKG])
                raise
        except CommandExecutionError:
            self.run_function('pkg.remove', [ADD_PKG])
            raise

    def test_latest_version(self):
        '''
        Test pkg.latest_version:
          - get the latest version available
          - install the package
          - get the latest version available
          - check that the latest version is empty after installing it
        '''
        try:
            self.run_function('pkg.remove', [ADD_PKG])
            uninstalled_latest = self.run_function('pkg.latest_version', [ADD_PKG])

            self.run_function('pkg.install', [ADD_PKG])
            installed_latest = self.run_function('pkg.latest_version', [ADD_PKG])
            version = self.run_function('pkg.version', [ADD_PKG])
            try:
                self.assertTrue(isinstance(uninstalled_latest, six.string_types))
                self.assertEqual(installed_latest, version)
            except AssertionError:
                self.run_function('pkg.remove', [ADD_PKG])
                raise
        except CommandExecutionError:
            self.run_function('pkg.remove', [ADD_PKG])
            raise

    def test_refresh_db(self):
        '''
        Integration test to ensure pkg.refresh_db works with brew
        '''
        refresh_brew = self.run_function('pkg.refresh_db')
        self.assertTrue(refresh_brew)

    def test_list_upgrades(self):
        '''
        Test pkg.list_upgrades: data is in the form {'name1': 'version1',
        'name2': 'version2', ... }
        '''
        try:
            upgrades = self.run_function('pkg.list_upgrades')
            try:
                self.assertTrue(isinstance(upgrades, dict))
                if len(upgrades):
                    for name in upgrades:
                        self.assertTrue(isinstance(name, six.string_types))
                        self.assertTrue(isinstance(upgrades[name], six.string_types))
            except AssertionError:
                self.run_function('pkg.remove', [ADD_PKG])
                raise
        except CommandExecutionError:
            self.run_function('pkg.remove', [ADD_PKG])
            raise

    def test_info_installed(self):
        '''
        Test pkg.info_installed: info returned has certain fields used by
        mac_brew.latest_version
        '''
        try:
            self.run_function('pkg.install', [ADD_PKG])
            info = self.run_function('pkg.info_installed', [ADD_PKG])
            try:
                self.assertTrue(ADD_PKG in info)
                self.assertTrue('versions' in info[ADD_PKG])
                self.assertTrue('revision' in info[ADD_PKG])
                self.assertTrue('stable' in info[ADD_PKG]['versions'])
            except AssertionError:
                self.run_function('pkg.remove', [ADD_PKG])
                raise
        except CommandExecutionError:
            self.run_function('pkg.remove', [ADD_PKG])
            raise

    def tearDown(self):
        '''
        Clean up after tests
        '''
        pkg_list = self.run_function('pkg.list_pkgs')

        # Remove any installed packages
        if ADD_PKG in pkg_list:
            self.run_function('pkg.remove', [ADD_PKG])
        if DEL_PKG in pkg_list:
            self.run_function('pkg.remove', [DEL_PKG])