# Copyright (c) Facebook, Inc. and its affiliates.
#
# This source code is licensed under the BSD license found in the
# LICENSE file in the root directory of this source tree.

import os
import pathlib
import shutil

import experimental.wgit.cli as cli


def setup_module(module):
    parent_dir = "experimental"
    test_dir = os.path.join(parent_dir, "wgit_testing/")

    # creates a testing directory within ./experimental
    try:
        os.makedirs(test_dir)
    except FileExistsError:
        shutil.rmtree(test_dir)
        os.makedirs(test_dir)

    os.chdir(test_dir)
    cli.main(["init"])


def test_cli_init(capsys):
    # Check if the json and other files have been created by the init
    assert pathlib.Path(".wgit/sha1_ref_count.json").is_file()
    assert pathlib.Path(".wgit/.gitignore").is_file()
    assert pathlib.Path(".wgit/.git").exists()


def test_cli_add(capsys):
    cli.main(["add", "test"])
    captured = capsys.readouterr()
    assert captured.out == "wgit added\n"
    assert captured.err == ""


def test_cli_status(capsys):
    cli.main(["status"])
    captured = capsys.readouterr()
    assert captured.out == "wgit status\n"
    assert captured.err == ""


def test_cli_log(capsys):
    cli.main(["log"])
    captured = capsys.readouterr()
    assert captured.out == "wgit log\n"
    assert captured.err == ""


def test_cli_commit(capsys):
    cli.main(["commit", "-m", "text"])
    captured = capsys.readouterr()
    assert captured.out == "commited with message: text\n"
    assert captured.err == ""


def test_cli_checkout(capsys):
    cli.main(["checkout", "sha1"])
    captured = capsys.readouterr()
    assert captured.out == "wgit checkout\n"
    assert captured.err == ""


def teardown_module(module):
    # clean up: delete the .wgit directory created during this Test
    parent_dir = "experimental"
    os.chdir(os.path.dirname(os.getcwd()))

    # Making sure the current directory is ./experimental before removing test dir
    if os.path.split(os.getcwd())[1] == parent_dir:
        shutil.rmtree("./wgit_testing/")
    else:
        raise Exception("Exception in testing directory tear down!")