# -*- coding: utf-8 -*-
#
# Copyright © Spyder Project Contributors
# Licensed under the terms of the MIT License
#
"""Tests for the Editor plugin."""

# Standard library imports
import os.path as osp
import shutil

# Third party imports
import pytest
try:
    from unittest.mock import Mock
except ImportError:
    from mock import Mock  # Python 2
from qtpy.QtWidgets import QWidget

# Local imports
from spyder.utils.qthelpers import qapplication


@pytest.fixture
def setup_editor(qtbot, monkeypatch):
    """Set up the Editor plugin."""
    qapplication()
    monkeypatch.setattr('spyder.dependencies', Mock())
    from spyder.plugins.editor import Editor
    monkeypatch.setattr('spyder.plugins.editor.add_actions', Mock())

    class MainMock(QWidget):
        def __getattr__(self, attr):
            if attr.endswith('actions'):
                return []
            elif attr == 'projects':
                projects = Mock()
                projects.get_active_project.return_value = None
                return projects
            else:
                return Mock()

        def get_spyder_pythonpath(*args):
            return []

    editor = Editor(MainMock())
    qtbot.addWidget(editor)
    editor.show()

    yield editor, qtbot
    # teardown
    editor.introspector.plugin_manager.close()


def test_renamed_tree(setup_editor, mocker):
    """Test editor.renamed_tree().

    This tests that the file renaming functions are called correctly,
    but does not test that all the renaming happens in File Explorer,
    Project Explorer, and Editor widget as those aren't part of the plugin.
    """
    editor, qtbot = setup_editor
    mocker.patch.object(editor, 'get_filenames')
    mocker.patch.object(editor, 'renamed')
    editor.get_filenames.return_value = ['/test/directory/file1.py',
                                         '/test/directory/file2.txt',
                                         '/home/spyder/testing/file3.py',
                                         '/test/directory/file4.rst']

    editor.renamed_tree('/test/directory', '/test/dir')
    assert editor.renamed.call_count == 3
    assert editor.renamed.called_with(source='/test/directory/file1.py',
                                      dest='test/dir/file1.py')
    assert editor.renamed.called_with(source='/test/directory/file2.txt',
                                      dest='test/dir/file2.txt')
    assert editor.renamed.called_with(source='/test/directory/file4.rst',
                                      dest='test/dir/file4.rst')


def test_no_template(setup_editor):
    """
    Test that new files can be opened when no template is found.
    """
    editor, qtbot = setup_editor

    # Move template to another file to simulate the lack of it
    template = editor.TEMPLATE_PATH
    shutil.move(template, osp.join(osp.dirname(template), 'template.py.old'))

    # Open a new file
    editor.new()

    # Get contents
    code_editor = editor.get_focus_widget()
    contents = code_editor.get_text('sof', 'eof')

    # Assert contents are empty
    assert not contents

    # Revert template back
    shutil.move(osp.join(osp.dirname(template), 'template.py.old'), template)