# -*- coding: utf-8 -*-
"""
    :codeauthor: jmoney <justin@saltstack.com>
"""

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

import salt.modules.cp as cp
import salt.transport.client

# Import Salt Libs
import salt.utils.files
import salt.utils.platform
import salt.utils.templates as templates
from salt.exceptions import CommandExecutionError

# Import Salt Testing Libs
from tests.support.mixins import LoaderModuleMockMixin
from tests.support.mock import MagicMock, Mock, mock_open, patch
from tests.support.unit import TestCase


class CpTestCase(TestCase, LoaderModuleMockMixin):
    """
    TestCase for salt.modules.cp module
    """

    def setup_loader_modules(self):
        return {cp: {}}

    def test__render_filenames_undefined_template(self):
        """
        Test if _render_filenames fails upon getting a template not in
        TEMPLATE_REGISTRY.
        """
        path = "/srv/salt/saltines"
        dest = "/srv/salt/cheese"
        saltenv = "base"
        template = "biscuits"
        ret = (path, dest)
        self.assertRaises(
            CommandExecutionError, cp._render_filenames, path, dest, saltenv, template
        )

    def test__render_filenames_render_failed(self):
        """
        Test if _render_filenames fails when template rendering fails.
        """
        path = "salt://saltines"
        dest = "/srv/salt/cheese"
        saltenv = "base"
        template = "jinja"
        file_data = "Remember to keep your files well salted."
        mock_jinja = lambda *args, **kwargs: {"result": False, "data": file_data}
        with patch.dict(templates.TEMPLATE_REGISTRY, {"jinja": mock_jinja}):
            with patch("salt.utils.files.fopen", mock_open(read_data=file_data)):
                self.assertRaises(
                    CommandExecutionError,
                    cp._render_filenames,
                    path,
                    dest,
                    saltenv,
                    template,
                )

    def test__render_filenames_success(self):
        """
        Test if _render_filenames succeeds.
        """
        path = "salt://saltines"
        dest = "/srv/salt/cheese"
        saltenv = "base"
        template = "jinja"
        file_data = "/srv/salt/biscuits"
        mock_jinja = lambda *args, **kwargs: {"result": True, "data": file_data}
        ret = (file_data, file_data)  # salt.utils.files.fopen can only be mocked once
        with patch.dict(templates.TEMPLATE_REGISTRY, {"jinja": mock_jinja}):
            with patch("salt.utils.files.fopen", mock_open(read_data=file_data)):
                self.assertEqual(
                    cp._render_filenames(path, dest, saltenv, template), ret
                )

    def test_get_file_not_found(self):
        """
        Test if get_file can't find the file.
        """
        with patch("salt.modules.cp.hash_file", MagicMock(return_value=False)):
            path = "salt://saltines"
            dest = "/srv/salt/cheese"
            ret = ""
            self.assertEqual(cp.get_file(path, dest), ret)

    def test_get_file_str_success(self):
        """
        Test if get_file_str succeeds.
        """
        path = "salt://saltines"
        dest = "/srv/salt/cheese/saltines"
        file_data = "Remember to keep your files well salted."
        saltenv = "base"
        ret = file_data
        with patch("salt.utils.files.fopen", mock_open(read_data=file_data)):
            with patch("salt.modules.cp.cache_file", MagicMock(return_value=dest)):
                self.assertEqual(cp.get_file_str(path, dest), ret)

    def test_push_non_absolute_path(self):
        """
        Test if push fails on a non absolute path.
        """
        path = "../saltines"
        ret = False

        self.assertEqual(cp.push(path), ret)

    def test_push_dir_non_absolute_path(self):
        """
        Test if push_dir fails on a non absolute path.
        """
        path = "../saltines"
        ret = False

        self.assertEqual(cp.push_dir(path), ret)

    def test_push(self):
        """
        Test if push works with good posix path.
        """
        filename = "/saltines/test.file"
        if salt.utils.platform.is_windows():
            filename = "c:\\saltines\\test.file"
        with patch(
            "salt.modules.cp.os.path",
            MagicMock(isfile=Mock(return_value=True), wraps=cp.os.path),
        ), patch(
            "salt.modules.cp.os.path",
            MagicMock(getsize=MagicMock(return_value=10), wraps=cp.os.path),
        ), patch.multiple(
            "salt.modules.cp",
            _auth=MagicMock(**{"return_value.gen_token.return_value": "token"}),
            __opts__={"id": "abc", "file_buffer_size": 10},
        ), patch(
            "salt.utils.files.fopen", mock_open(read_data=b"content")
        ) as m_open, patch(
            "salt.transport.client.ReqChannel.factory", MagicMock()
        ) as req_channel_factory_mock:
            response = cp.push(filename)
            assert response, response
            num_opens = len(m_open.filehandles[filename])
            assert num_opens == 1, num_opens
            fh_ = m_open.filehandles[filename][0]
            assert fh_.read.call_count == 2, fh_.read.call_count
            req_channel_factory_mock().__enter__().send.assert_called_once_with(
                dict(
                    loc=fh_.tell(),  # pylint: disable=resource-leakage
                    cmd="_file_recv",
                    tok="token",
                    path=["saltines", "test.file"],
                    size=10,
                    data=b"",  # data is empty here because load['data'] is overwritten
                    id="abc",
                )
            )