import pytest
from unittest.mock import patch
from pathlib import Path
import argparse
import asyncio
import shlex

from gita import __main__
from gita import utils, info
from conftest import (
    PATH_FNAME,
    PATH_FNAME_EMPTY,
    PATH_FNAME_CLASH,
    GROUP_FNAME,
    async_mock,
    TEST_DIR,
)


@patch("gita.utils.get_repos", return_value={"aa"})
def test_group_name(_):
    got = __main__._group_name("xx")
    assert got == "xx"
    with pytest.raises(SystemExit):
        __main__._group_name("aa")


class TestAdd:
    @pytest.mark.parametrize(
        "input, expected",
        [
            (["add", "."], ""),
        ],
    )
    @patch("gita.common.get_config_fname")
    def test_add(self, mock_path_fname, tmp_path, input, expected):
        def side_effect(input, _=None):
            return tmp_path / f"{input}.txt"

        mock_path_fname.side_effect = side_effect
        utils.get_repos.cache_clear()
        __main__.main(input)
        utils.get_repos.cache_clear()
        got = utils.get_repos()
        assert len(got) == 1
        assert got["gita"]["type"] == expected


@pytest.mark.parametrize(
    "path_fname, expected",
    [
        (PATH_FNAME, ""),
        (PATH_FNAME_CLASH, "repo2: ['--haha', '--pp']\n"),
    ],
)
@patch("gita.utils.is_git", return_value=True)
@patch("gita.utils.get_groups", return_value={})
@patch("gita.common.get_config_fname")
def test_flags(mock_path_fname, _, __, path_fname, expected, capfd):
    mock_path_fname.return_value = path_fname
    utils.get_repos.cache_clear()
    __main__.main(["flags"])
    out, err = capfd.readouterr()
    assert err == ""
    assert out == expected


class TestLsLl:
    @patch("gita.common.get_config_fname")
    def test_ll(self, mock_path_fname, capfd, tmp_path):
        """
        functional test
        """

        # avoid modifying the local configuration
        def side_effect(input, _=None):
            return tmp_path / f"{input}.txt"

        mock_path_fname.side_effect = side_effect
        utils.get_repos.cache_clear()
        __main__.main(["add", "."])
        out, err = capfd.readouterr()
        assert err == ""
        assert "Found 1 new repo(s).\n" == out

        # in production this is not needed
        utils.get_repos.cache_clear()

        __main__.main(["ls"])
        out, err = capfd.readouterr()
        assert err == ""
        assert "gita\n" == out

        __main__.main(["ll"])
        out, err = capfd.readouterr()
        assert err == ""
        assert "gita" in out
        assert info.Color.end.value in out

        # no color on branch name
        __main__.main(["ll", "-C"])
        out, err = capfd.readouterr()
        assert err == ""
        assert "gita" in out
        assert info.Color.end.value not in out

        __main__.main(["ls", "gita"])
        out, err = capfd.readouterr()
        assert err == ""
        assert out.strip() == utils.get_repos()["gita"]["path"]

    def test_ls(self, monkeypatch, capfd):
        monkeypatch.setattr(
            utils,
            "get_repos",
            lambda: {"repo1": {"path": "/a/"}, "repo2": {"path": "/b/"}},
        )
        monkeypatch.setattr(utils, "describe", lambda x: x)
        __main__.main(["ls"])
        out, err = capfd.readouterr()
        assert err == ""
        assert out == "repo1 repo2\n"
        __main__.main(["ls", "repo1"])
        out, err = capfd.readouterr()
        assert err == ""
        assert out == "/a/\n"

    @pytest.mark.parametrize(
        "path_fname, expected",
        [
            (
                PATH_FNAME,
                "repo1 \x1b[31mmaster     [*+?⇕] \x1b[0m msg \nrepo2 \x1b[31mmaster     [*+?⇕] \x1b[0m msg \nxxx   \x1b[31mmaster     [*+?⇕] \x1b[0m msg \n",
            ),
            (PATH_FNAME_EMPTY, ""),
            (
                PATH_FNAME_CLASH,
                "repo1 \x1b[31mmaster     [*+?⇕] \x1b[0m msg \nrepo2 \x1b[31mmaster     [*+?⇕] \x1b[0m msg \n",
            ),
        ],
    )
    @patch("gita.utils.is_git", return_value=True)
    @patch("gita.info.get_head", return_value="master")
    @patch(
        "gita.info._get_repo_status",
        return_value=("dirty", "staged", "untracked", "diverged"),
    )
    @patch("gita.info.get_commit_msg", return_value="msg")
    @patch("gita.info.get_commit_time", return_value="")
    @patch("gita.common.get_config_fname")
    def test_with_path_files(
        self, mock_path_fname, _0, _1, _2, _3, _4, path_fname, expected, capfd
    ):
        def side_effect(input, _=None):
            if input == "repos.csv":
                return path_fname
            return f"/{input}"

        mock_path_fname.side_effect = side_effect
        utils.get_repos.cache_clear()
        __main__.main(["ll"])
        out, err = capfd.readouterr()
        print(out)
        assert err == ""
        assert out == expected


@pytest.mark.parametrize(
    "input, expected",
    [
        ({"repo1": {"path": "/a/"}, "repo2": {"path": "/b/"}}, ""),
    ],
)
@patch("subprocess.run")
@patch("gita.utils.get_repos")
def test_freeze(mock_repos, mock_run, input, expected, capfd):
    mock_repos.return_value = input
    __main__.main(["freeze"])
    assert mock_run.call_count == 2
    out, err = capfd.readouterr()
    assert err == ""
    assert out == expected


@patch("subprocess.run")
def test_clone_with_url(mock_run):
    args = argparse.Namespace()
    args.clonee = "http://abc.com/repo1"
    args.preserve_path = None
    args.directory = "/home/xxx"
    args.from_file = False
    args.dry_run = False
    __main__.f_clone(args)
    cmds = ["git", "clone", args.clonee]
    mock_run.assert_called_once_with(cmds, cwd=args.directory)


@patch(
    "gita.utils.parse_clone_config",
    return_value=[["git@github.com:user/repo.git", "repo", "/a/repo"]],
)
@patch("gita.utils.run_async", new=async_mock())
@patch("subprocess.run")
def test_clone_with_config_file(*_):
    asyncio.set_event_loop(asyncio.new_event_loop())
    args = argparse.Namespace()
    args.clonee = "freeze_filename"
    args.preserve_path = False
    args.directory = None
    args.from_file = True
    args.dry_run = False
    __main__.f_clone(args)
    mock_run = utils.run_async.mock
    assert mock_run.call_count == 1
    cmds = ["git", "clone", "git@github.com:user/repo.git"]
    mock_run.assert_called_once_with("repo", Path.cwd(), cmds)


@patch(
    "gita.utils.parse_clone_config",
    return_value=[["git@github.com:user/repo.git", "repo", "/a/repo"]],
)
@patch("gita.utils.run_async", new=async_mock())
@patch("subprocess.run")
def test_clone_with_preserve_path(*_):
    asyncio.set_event_loop(asyncio.new_event_loop())
    args = argparse.Namespace()
    args.clonee = "freeze_filename"
    args.directory = None
    args.from_file = True
    args.preserve_path = True
    args.dry_run = False
    __main__.f_clone(args)
    mock_run = utils.run_async.mock
    assert mock_run.call_count == 1
    cmds = ["git", "clone", "git@github.com:user/repo.git", "/a/repo"]
    mock_run.assert_called_once_with("repo", Path.cwd(), cmds)


@patch("os.makedirs")
@patch("os.path.isfile", return_value=True)
@patch("gita.common.get_config_fname", return_value="some path")
@patch(
    "gita.utils.get_repos",
    return_value={
        "repo1": {"path": "/a/", "type": ""},
        "repo2": {"path": "/b/", "type": ""},
    },
)
@patch("gita.utils.write_to_repo_file")
def test_rm(mock_write, *_):
    args = argparse.Namespace()
    args.repo = ["repo1"]
    __main__.f_rm(args)
    mock_write.assert_called_once_with({"repo2": {"path": "/b/", "type": ""}}, "w")


def test_not_add():
    # this won't write to disk because the repo is not valid
    __main__.main(["add", "/home/some/repo/"])


@patch("gita.utils.get_repos", return_value={"repo2": {"path": "/d/efg", "flags": []}})
@patch("subprocess.run")
def test_fetch(mock_run, *_):
    asyncio.set_event_loop(asyncio.new_event_loop())
    __main__.main(["fetch"])
    mock_run.assert_called_once_with(["git", "fetch"], cwd="/d/efg", shell=False)


@patch(
    "gita.utils.get_repos",
    return_value={
        "repo1": {"path": "/a/bc", "flags": []},
        "repo2": {"path": "/d/efg", "flags": []},
    },
)
@patch("gita.utils.run_async", new=async_mock())
@patch("subprocess.run")
def test_async_fetch(*_):
    __main__.main(["fetch"])
    mock_run = utils.run_async.mock
    assert mock_run.call_count == 2
    cmds = ["git", "fetch"]
    # print(mock_run.call_args_list)
    mock_run.assert_any_call("repo1", "/a/bc", cmds)
    mock_run.assert_any_call("repo2", "/d/efg", cmds)


@pytest.mark.parametrize(
    "input",
    [
        "diff --name-only --staged",
        "commit -am 'lala kaka'",
    ],
)
@patch("gita.utils.get_repos", return_value={"repo7": {"path": "path7", "flags": []}})
@patch("subprocess.run")
def test_superman(mock_run, _, input):
    mock_run.reset_mock()
    args = ["super", "repo7"] + shlex.split(input)
    __main__.main(args)
    expected_cmds = ["git"] + shlex.split(input)
    mock_run.assert_called_once_with(expected_cmds, cwd="path7", shell=False)


@pytest.mark.parametrize(
    "input",
    [
        "diff --name-only --staged",
        "commit -am 'lala kaka'",
    ],
)
@patch("gita.utils.get_repos", return_value={"repo7": {"path": "path7", "flags": []}})
@patch("subprocess.run")
def test_shell(mock_run, _, input):
    mock_run.reset_mock()
    args = ["shell", "repo7", input]
    __main__.main(args)
    expected_cmds = input
    mock_run.assert_called_once_with(
        expected_cmds, cwd="path7", shell=True, stderr=-2, stdout=-1
    )


class TestContext:
    @patch("gita.utils.get_context", return_value=None)
    def test_display_no_context(self, _, capfd):
        __main__.main(["context"])
        out, err = capfd.readouterr()
        assert err == ""
        assert "Context is not set\n" == out

    @patch("gita.utils.get_context", return_value=Path("gname.context"))
    @patch("gita.utils.get_groups", return_value={"gname": {"repos": ["a", "b"]}})
    def test_display_context(self, _, __, capfd):
        __main__.main(["context"])
        out, err = capfd.readouterr()
        assert err == ""
        assert "gname: a b\n" == out

    @patch("gita.utils.get_context")
    def test_reset(self, mock_ctx):
        __main__.main(["context", "none"])
        mock_ctx.return_value.unlink.assert_called()

    @patch("gita.utils.get_context", return_value=None)
    @patch("gita.common.get_config_dir", return_value=TEST_DIR)
    @patch("gita.utils.get_groups", return_value={"lala": ["b"], "kaka": []})
    def test_set_first_time(self, *_):
        ctx = TEST_DIR / "lala.context"
        assert not ctx.is_file()
        __main__.main(["context", "lala"])
        assert ctx.is_file()
        ctx.unlink()

    @patch("gita.common.get_config_dir", return_value=TEST_DIR)
    @patch("gita.utils.get_groups", return_value={"lala": ["b"], "kaka": []})
    @patch("gita.utils.get_context")
    def test_set_second_time(self, mock_ctx, *_):
        __main__.main(["context", "kaka"])
        mock_ctx.return_value.rename.assert_called()


class TestGroupCmd:
    @patch("gita.common.get_config_fname", return_value=GROUP_FNAME)
    def test_ls(self, _, capfd):
        args = argparse.Namespace()
        args.to_group = None
        args.group_cmd = "ls"
        utils.get_groups.cache_clear()
        __main__.f_group(args)
        out, err = capfd.readouterr()
        assert err == ""
        assert "xx yy\n" == out

    @patch("gita.utils.get_repos", return_value={"a": "", "b": "", "c": "", "d": ""})
    @patch("gita.common.get_config_fname", return_value=GROUP_FNAME)
    def test_ll(self, _, __, capfd):
        args = argparse.Namespace()
        args.to_group = None
        args.group_cmd = None
        args.to_show = None
        utils.get_groups.cache_clear()
        __main__.f_group(args)
        out, err = capfd.readouterr()
        assert err == ""
        assert (
            out
            == "\x1b[4mxx\x1b[0m: \n  - a\n  - b\n\x1b[4myy\x1b[0m: \n  - a\n  - c\n  - d\n"
        )

    @patch("gita.utils.get_repos", return_value={"a": "", "b": "", "c": "", "d": ""})
    @patch("gita.common.get_config_fname", return_value=GROUP_FNAME)
    def test_ll_with_group(self, _, __, capfd):
        args = argparse.Namespace()
        args.to_group = None
        args.group_cmd = None
        args.to_show = "yy"
        utils.get_groups.cache_clear()
        __main__.f_group(args)
        out, err = capfd.readouterr()
        assert err == ""
        assert "a c d\n" == out

    @patch("gita.utils.get_repos", return_value={"a": "", "b": "", "c": "", "d": ""})
    @patch("gita.common.get_config_fname", return_value=GROUP_FNAME)
    @patch("gita.utils.write_to_groups_file")
    def test_rename(self, mock_write, *_):
        args = argparse.Namespace()
        args.gname = "xx"
        args.new_name = "zz"
        args.group_cmd = "rename"
        utils.get_groups.cache_clear()
        __main__.f_group(args)
        expected = {
            "yy": {"repos": ["a", "c", "d"], "path": ""},
            "zz": {"repos": ["a", "b"], "path": ""},
        }
        mock_write.assert_called_once_with(expected, "w")

    @patch("gita.info.get_color_encoding", return_value=info.default_colors)
    @patch("gita.common.get_config_fname", return_value=GROUP_FNAME)
    def test_rename_error(self, *_):
        utils.get_groups.cache_clear()
        with pytest.raises(SystemExit, match="1"):
            __main__.main("group rename xx yy".split())

    @pytest.mark.parametrize(
        "input, expected",
        [
            ("xx", {"yy": {"repos": ["a", "c", "d"], "path": ""}}),
            ("xx yy", {}),
        ],
    )
    @patch("gita.utils.get_repos", return_value={"a": "", "b": "", "c": "", "d": ""})
    @patch("gita.common.get_config_fname", return_value=GROUP_FNAME)
    @patch("gita.utils.write_to_groups_file")
    def test_rm(self, mock_write, _, __, input, expected):
        utils.get_groups.cache_clear()
        args = ["group", "rm"] + shlex.split(input)
        __main__.main(args)
        mock_write.assert_called_once_with(expected, "w")

    @patch("gita.utils.get_repos", return_value={"a": "", "b": "", "c": "", "d": ""})
    @patch("gita.common.get_config_fname", return_value=GROUP_FNAME)
    @patch("gita.utils.write_to_groups_file")
    def test_add(self, mock_write, *_):
        args = argparse.Namespace()
        args.to_group = ["a", "c"]
        args.group_cmd = "add"
        args.gname = "zz"
        utils.get_groups.cache_clear()
        __main__.f_group(args)
        mock_write.assert_called_once_with(
            {"zz": {"repos": ["a", "c"], "path": ""}}, "a+"
        )

    @patch("gita.utils.get_repos", return_value={"a": "", "b": "", "c": "", "d": ""})
    @patch("gita.common.get_config_fname", return_value=GROUP_FNAME)
    @patch("gita.utils.write_to_groups_file")
    def test_add_to_existing(self, mock_write, *_):
        args = argparse.Namespace()
        args.to_group = ["a", "c"]
        args.group_cmd = "add"
        args.gname = "xx"
        utils.get_groups.cache_clear()
        __main__.f_group(args)
        mock_write.assert_called_once_with(
            {
                "xx": {"repos": ["a", "b", "c"], "path": ""},
                "yy": {"repos": ["a", "c", "d"], "path": ""},
            },
            "w",
        )

    @patch("gita.utils.get_repos", return_value={"a": "", "b": "", "c": "", "d": ""})
    @patch("gita.common.get_config_fname", return_value=GROUP_FNAME)
    @patch("gita.utils.write_to_groups_file")
    def test_rm_repo(self, mock_write, *_):
        args = argparse.Namespace()
        args.to_rm = ["a", "c"]
        args.group_cmd = "rmrepo"
        args.gname = "xx"
        utils.get_groups.cache_clear()
        __main__.f_group(args)
        mock_write.assert_called_once_with(
            {
                "xx": {"repos": ["b"], "path": ""},
                "yy": {"repos": ["a", "c", "d"], "path": ""},
            },
            "w",
        )

    @patch("gita.common.get_config_fname")
    def test_integration(self, mock_path_fname, tmp_path, capfd):
        def side_effect(input, _=None):
            return tmp_path / f"{input}.csv"

        mock_path_fname.side_effect = side_effect

        __main__.main("add .".split())
        utils.get_repos.cache_clear()
        __main__.main("group add gita -n test".split())
        utils.get_groups.cache_clear()
        __main__.main("ll test".split())
        out, err = capfd.readouterr()
        assert err == ""
        assert "gita" in out


@patch("gita.utils.is_git", return_value=True)
@patch("gita.common.get_config_fname", return_value=PATH_FNAME)
@patch("gita.utils.rename_repo")
def test_rename(mock_rename, _, __):
    utils.get_repos.cache_clear()
    args = ["rename", "repo1", "abc"]
    __main__.main(args)
    mock_rename.assert_called_once_with(
        {
            "repo1": {"path": "/a/bcd/repo1", "type": "", "flags": []},
            "xxx": {"path": "/a/b/c/repo3", "type": "", "flags": []},
            "repo2": {"path": "/e/fgh/repo2", "type": "", "flags": []},
        },
        "repo1",
        "abc",
    )


class TestInfo:
    @patch("gita.common.get_config_fname", return_value="")
    def test_ll(self, _, capfd):
        args = argparse.Namespace()
        args.info_cmd = None
        __main__.f_info(args)
        out, err = capfd.readouterr()
        assert (
            "In use: branch,commit_msg,commit_time\nUnused: branch_name,path\n" == out
        )
        assert err == ""

    @patch("gita.common.get_config_fname")
    def test_add(self, mock_get_fname, tmpdir):
        args = argparse.Namespace()
        args.info_cmd = "add"
        args.info_item = "path"
        with tmpdir.as_cwd():
            csv_config = Path.cwd() / "info.csv"
            mock_get_fname.return_value = csv_config
            __main__.f_info(args)
            items = info.get_info_items()
        assert items == ["branch", "commit_msg", "commit_time", "path"]

    @patch("gita.common.get_config_fname")
    def test_rm(self, mock_get_fname, tmpdir):
        args = argparse.Namespace()
        args.info_cmd = "rm"
        args.info_item = "commit_msg"
        with tmpdir.as_cwd():
            csv_config = Path.cwd() / "info.csv"
            mock_get_fname.return_value = csv_config
            __main__.f_info(args)
            items = info.get_info_items()
        assert items == ["branch", "commit_time"]


@patch("gita.common.get_config_fname")
def test_set_color(mock_get_fname, tmpdir):
    args = argparse.Namespace()
    args.color_cmd = "set"
    args.color = "b_white"
    args.situation = "no_remote"
    with tmpdir.as_cwd():
        csv_config = Path.cwd() / "colors.csv"
        mock_get_fname.return_value = csv_config
        __main__.f_color(args)

        info.get_color_encoding.cache_clear()  # avoid side effect
        items = info.get_color_encoding()
    info.get_color_encoding.cache_clear()  # avoid side effect
    assert items == {
        "no_remote": "b_white",
        "in_sync": "green",
        "diverged": "red",
        "local_ahead": "purple",
        "remote_ahead": "yellow",
    }


@pytest.mark.parametrize(
    "input, expected",
    [
        ({"repo1": {"path": "/a/"}, "repo2": {"path": "/b/"}}, ""),
    ],
)
@patch("gita.utils.write_to_groups_file")
@patch("gita.utils.write_to_repo_file")
@patch("gita.utils.get_repos")
def test_clear(
    mock_repos,
    mock_write_to_repo_file,
    mock_write_to_groups_file,
    input,
    expected,
    capfd,
):
    mock_repos.return_value = input
    __main__.main(["clear"])
    assert mock_write_to_repo_file.call_count == 1
    mock_write_to_repo_file.assert_called_once_with({}, "w")
    assert mock_write_to_groups_file.call_count == 1
    mock_write_to_groups_file.assert_called_once_with({}, "w")
    out, err = capfd.readouterr()
    assert err == ""
    assert out == expected