import os
import textwrap

import pytest
from iniconfig import IniConfig

import lektor_ng.quickstart
from lektor_ng.cli.cli_old import cli
from lektor_ng.inifile import IniFile


@pytest.fixture(scope="session")
def can_symlink(tmp_path_factory):
    """Test whether current user has sufficient privileges to create symlinks."""
    if os.name == "nt":
        tmp_path = tmp_path_factory.mktemp("symlink-test")
        try:
            os.symlink("foo", tmp_path / "test")
        except OSError as exc:
            # Error Code 1314 - A required privilege is not held by the client
            # pylint: disable=no-member
            if exc.winerror != 1314:
                raise
            return False
    return True


@pytest.fixture
def default_author(mocker):
    author = "J. Random Hacker"
    mocker.patch.object(lektor_ng.quickstart, "get_default_author", spec=True, return_value=author)
    return author


@pytest.fixture
def default_author_email(mocker):
    email = "jrh@example.org"
    mocker.patch.object(lektor_ng.quickstart, "get_default_author_email", spec=True, return_value=email)
    return email


def _pack_lines(*lines: str) -> str:
    """Pack input lines into single string."""
    return "\n".join(lines) + "\n"


# new-plugin
def test_new_plugin(project_cli_runner):
    result = project_cli_runner.invoke(
        cli,
        ["dev", "new-plugin"],
        input=_pack_lines("Plugin Name", "", "Author Name", "author@email.com", "y"),
    )
    assert "Create Plugin?" in result.output
    assert result.exit_code == 0
    path = os.path.join("packages", "plugin-name")
    assert set(os.listdir(path)) == {
        "lektor_plugin_name.py",
        "pyproject.toml",
        "setup.cfg",
        ".gitignore",
        "README.md",
    }

    # gitignore
    gitignore_expected = textwrap.dedent(
        """
        /dist
        /build
        __pycache__
        *.egg-info
    """
    ).strip()
    with open(os.path.join(path, ".gitignore"), encoding="utf-8") as f:
        gitignore_contents = f.read().strip()
    assert gitignore_contents == gitignore_expected

    # README.md
    readme_expected = textwrap.dedent(
        """
        # Plugin Name

        This is where a description of your plugin goes.
        Provide usage instructions here.
    """
    ).strip()
    with open(os.path.join(path, "README.md"), encoding="utf-8") as f:
        readme_contents = f.read().strip()
    assert readme_contents == readme_expected

    setup = IniConfig(os.path.join(path, "setup.cfg"))
    assert setup.get("metadata", "name") == "lektor-plugin-name"
    assert setup.get("metadata", "author") == "Author Name"
    assert setup.get("metadata", "author_email") == "author@email.com"
    assert setup.get("options", "py_modules") == "lektor_plugin_name"
    assert setup.get("options.entry_points", "lektor.plugins") == "plugin-name = lektor_plugin_name:PluginNamePlugin"

    # plugin.py
    plugin_expected = textwrap.dedent(
        """
        from lektor_ng.pluginsystem import Plugin


        class PluginNamePlugin(Plugin):
            name = 'Plugin Name'
            description = "Add your description here."

            def on_process_template_context(self, context, **extra):
                def test_function():
                    return f"Value from plugin {self.name}"
                context["test_function"] = test_function
    """
    ).strip()
    with open(os.path.join(path, "lektor_plugin_name.py"), encoding="utf-8") as f:
        plugin_contents = f.read().strip()
    assert plugin_contents == plugin_expected


def test_new_plugin_abort_plugin_exists(project_cli_runner):
    path = "packages"
    os.mkdir(path)
    os.mkdir(os.path.join(path, "plugin-name"))
    input = "Plugin Name\n\nAuthor Name\nauthor@email.com\ny\n"
    result = project_cli_runner.invoke(cli, ["dev", "new-plugin"], input=input)
    assert "Aborted!" in result.output
    assert result.exit_code == 1


def test_new_plugin_abort_cancel(project_cli_runner):
    result = project_cli_runner.invoke(
        cli,
        ["dev", "new-plugin"],
        input=_pack_lines("Plugin Name", "", "Author Name", "author@email.com", "n"),
    )
    assert "Aborted!" in result.output
    assert result.exit_code == 1


def test_new_plugin_name_only(project_cli_runner, default_author, default_author_email):
    result = project_cli_runner.invoke(
        cli,
        ["dev", "new-plugin"],
        input=_pack_lines("Plugin Name", "", "", "", "y"),
    )
    assert "Create Plugin?" in result.output
    assert result.exit_code == 0
    path = "packages"
    assert os.listdir(path) == ["plugin-name"]

    setup = IniConfig(os.path.join(path, "plugin-name", "setup.cfg"))
    assert setup.get("metadata", "author") == default_author
    assert setup.get("metadata", "author_email") == default_author_email


def test_new_plugin_name_param(project_cli_runner):
    result = project_cli_runner.invoke(
        cli,
        ["dev", "new-plugin", "plugin-name"],
        input=_pack_lines("", "Author Name", "author@email.com", "y"),
    )
    assert "Create Plugin?" in result.output
    assert result.exit_code == 0
    path = "packages"
    assert os.listdir(path) == ["plugin-name"]


def test_new_plugin_path(project_cli_runner):
    result = project_cli_runner.invoke(
        cli,
        ["dev", "new-plugin"],
        input=_pack_lines("Plugin Name", "path", "Author Name", "author@email.com", "y"),
    )
    assert "Create Plugin?" in result.output
    assert result.exit_code == 0
    path = "path"
    assert set(os.listdir(path)) == {
        "lektor_plugin_name.py",
        "pyproject.toml",
        "setup.cfg",
        ".gitignore",
        "README.md",
    }


def test_new_plugin_path_param(project_cli_runner):
    result = project_cli_runner.invoke(
        cli,
        ["dev", "new-plugin", "--path", "path"],
        input=_pack_lines("Plugin Name", "Author Name", "author@email.com", "y"),
    )
    assert "Create Plugin?" in result.output
    assert result.exit_code == 0
    path = "path"
    assert set(os.listdir(path)) == {
        "lektor_plugin_name.py",
        "pyproject.toml",
        "setup.cfg",
        ".gitignore",
        "README.md",
    }


def test_new_plugin_path_and_name_params(project_cli_runner):
    result = project_cli_runner.invoke(
        cli,
        ["dev", "new-plugin", "plugin-name", "--path", "path"],
        input=_pack_lines("Author Name", "author@email.com", "y"),
    )
    assert "Create Plugin?" in result.output
    assert result.exit_code == 0
    path = "path"
    assert set(os.listdir(path)) == {
        "lektor_plugin_name.py",
        "pyproject.toml",
        "setup.cfg",
        ".gitignore",
        "README.md",
    }


# new-theme
def test_new_theme(project_cli_runner, can_symlink):
    result = project_cli_runner.invoke(
        cli,
        ["dev", "new-theme"],
        input=_pack_lines("Lektor Theme Name", "", "Author Name", "author@email.com", "y"),
    )
    assert "Create Theme?" in result.output
    assert result.exit_code == 0
    path = os.path.join("themes", "lektor-theme-name")
    assert set(os.listdir(path)) == {"example-site", "images", "README.md", "theme.ini"}
    assert set(os.listdir(os.path.join(path, "images"))) == {"homepage.png"}
    assert set(os.listdir(os.path.join(path, "example-site"))) == {
        "lektor-theme-name.lektorproject",
        "README.md",
        "themes",
    }
    if can_symlink:
        assert os.readlink(os.path.join(path, "example-site/themes/lektor-theme-name")) == "../../../lektor-theme-name"

    theme_inifile = IniFile(os.path.join(path, "theme.ini"))
    assert theme_inifile["theme.name"] == "Lektor Theme Name"
    assert theme_inifile["author.email"] == "author@email.com"
    assert theme_inifile["author.name"] == "Author Name"

    with open(os.path.join(path, "README.md"), encoding="utf-8") as f:
        readme_contents = f.read().strip()
    assert "Lektor Theme Name" in readme_contents


def test_new_theme_abort_theme_exists(project_cli_runner):
    path = "themes"
    os.mkdir(path)
    os.mkdir(os.path.join(path, "lektor-theme-name"))
    input = "Lektor Name\n\nAuthor Name\nauthor@email.com\ny\n"
    result = project_cli_runner.invoke(cli, ["dev", "new-theme"], input=input)
    assert "Aborted!" in result.output
    assert result.exit_code == 1


def test_new_theme_abort_cancel(project_cli_runner):
    result = project_cli_runner.invoke(
        cli,
        ["dev", "new-theme"],
        input=_pack_lines("Theme Name", "", "Author Name", "author@email.com", "n"),
    )
    assert "Aborted!" in result.output
    assert result.exit_code == 1


def test_new_theme_name_only(project_cli_runner, can_symlink, default_author, default_author_email):
    result = project_cli_runner.invoke(
        cli,
        ["dev", "new-theme"],
        input=_pack_lines("Lektor Name Theme", "", "", "", "y"),
    )
    assert "Create Theme?" in result.output
    assert result.exit_code == 0
    path = os.path.join("themes", "lektor-theme-name")
    assert set(os.listdir(path)) == {"example-site", "images", "README.md", "theme.ini"}
    assert set(os.listdir(os.path.join(path, "images"))) == {"homepage.png"}
    assert set(os.listdir(os.path.join(path, "example-site"))) == {
        "lektor-theme-name.lektorproject",
        "README.md",
        "themes",
    }
    if can_symlink:
        assert os.readlink(os.path.join(path, "example-site/themes/lektor-theme-name")) == "../../../lektor-theme-name"

    theme_inifile = IniFile(os.path.join(path, "theme.ini"))
    assert theme_inifile["theme.name"] == "Lektor Name Theme"
    assert theme_inifile["author.email"] == default_author_email
    assert theme_inifile["author.name"] == default_author

    with open(os.path.join(path, "README.md"), encoding="utf-8") as f:
        readme_contents = f.read().strip()
    assert "Lektor Name Theme" in readme_contents


def test_new_theme_name_param(project_cli_runner):
    result = project_cli_runner.invoke(
        cli,
        ["dev", "new-theme", "theme-name"],
        input=_pack_lines("", "Author Name", "author@email.com", "y"),
    )
    assert "Create Theme?" in result.output
    assert result.exit_code == 0
    path = "themes"
    assert os.listdir(path) == ["lektor-theme-name"]


def test_new_theme_path(project_cli_runner):
    result = project_cli_runner.invoke(
        cli,
        ["dev", "new-theme"],
        input=_pack_lines("Theme Name", "path", "Author Name", "author@email.com", "y"),
    )
    assert "Create Theme?" in result.output
    assert result.exit_code == 0
    path = "path"
    assert set(os.listdir(path)) == {"example-site", "images", "theme.ini", "README.md"}


def test_new_theme_path_param(project_cli_runner):
    result = project_cli_runner.invoke(
        cli,
        ["dev", "new-theme", "--path", "path"],
        input=_pack_lines("Theme Name", "Author Name", "author@email.com", "y"),
    )
    assert "Create Theme?" in result.output
    assert result.exit_code == 0
    path = "path"
    assert set(os.listdir(path)) == {"example-site", "images", "theme.ini", "README.md"}


def test_new_theme_path_and_name_params(project_cli_runner):
    result = project_cli_runner.invoke(
        cli,
        ["dev", "new-theme", "theme-name", "--path", "path"],
        input=_pack_lines("Author Name", "author@email.com", "y"),
    )
    assert "Create Theme?" in result.output
    assert result.exit_code == 0
    path = "path"
    assert set(os.listdir(path)) == {"example-site", "images", "theme.ini", "README.md"}


@pytest.mark.parametrize(
    ("theme_name", "expected_id"),
    (
        ("Lektor New Theme", "lektor-theme-new"),
        ("Lektor Theme", "lektor-theme-theme"),
        ("New Theme", "lektor-theme-new"),
        ("New", "lektor-theme-new"),
        ("Theme", "lektor-theme-theme"),
        ("Lektor", "lektor-theme-lektor"),
        ("Lektor Theme New", "lektor-theme-new"),
    ),
)
@pytest.mark.usefixtures("default_author", "default_author_email")
def test_new_theme_varying_names(project_cli_runner, theme_name, expected_id):
    result = project_cli_runner.invoke(
        cli,
        ["dev", "new-theme"],
        input=_pack_lines(f"{theme_name}", "", "", "", "y"),
    )
    assert "Create Theme?" in result.output
    assert result.exit_code == 0
    assert expected_id in os.listdir("themes")
    path = os.path.join("themes", expected_id, "example-site")
    assert expected_id + ".lektorproject" in os.listdir(path)