import pathlib

import pytest
import jinja2

from tembo.journal.pages import PageCreator, ScopedPageCreator


def test_page_creator_convert_to_path_missing_base_path(caplog):
    # arrange
    base_path = "/some/nonexistent/path"
    page_path = "some_page"
    filename = "some_filename"
    extension = "ex"

    # act
    with pytest.raises(SystemExit) as system_exit:
        PageCreator._convert_to_path(
            base_path=base_path,
            page_path=page_path,
            filename=filename,
            extension=extension,
        )

    # assert
    assert system_exit.value.code == 1
    assert caplog.records[0].levelname == "CRITICAL"
    assert (
        caplog.records[0].message
        == "Tembo base path of /some/nonexistent/path does not exist - exiting"
    )


@pytest.mark.parametrize(
    "page_path,filename,extension",
    [
        ("some_pagepath", "some_filename", "ex"),
        ("some pagepath", "some filename", "ex"),
    ],
)
def test_page_creator_convert_to_path_full_path_to_file(
    page_path, filename, extension, tmpdir
):
    # arrange
    path_to_file = (
        pathlib.Path(tmpdir)
        / pathlib.Path(page_path)
        / pathlib.Path(filename).with_suffix(f".{extension}")
    )
    base_path = tmpdir

    # act
    converted_path = PageCreator._convert_to_path(
        base_path, page_path, filename, extension
    )

    # assert
    assert str(path_to_file).replace(" ", "_") == str(converted_path)


def test_page_creator_convert_to_path_full_path_no_file(tmpdir):
    # arrange
    full_path = pathlib.Path("/some/path")
    base_path = ""
    page_path = "/some/path"
    filename = ""
    extension = ""

    # act
    converted_path = PageCreator._convert_to_path(
        base_path, page_path, filename, extension
    )

    # assert
    assert str(full_path).replace(" ", "_") == str(converted_path)


def test_page_creator_load_template_with_base_path_success(datadir):
    # arrange
    # default template_path would be datadir/.templates
    base_path = str(datadir)
    template_filename = "some_template.md.tpl"

    # act
    template_contents = ScopedPageCreator()._load_template(
        base_path, template_filename, None
    )

    # assert
    assert template_contents == "template contents"


def test_page_creator_load_template_overriden_template_path_success(datadir):
    # arrange
    base_path = str(datadir)
    template_filename = "some_template.md.tpl"
    template_path = str(datadir / ".templates")

    # act
    # we explicitly pass in the template_path to override the default
    template_contents = ScopedPageCreator()._load_template(
        base_path, template_filename, template_path
    )

    # assert
    assert template_contents == "template contents"


def test_page_creator_load_template_missing_template_file(datadir, caplog):
    # arrange
    base_path = str(datadir)
    template_filename = "some_nonexistent_template.md.tpl"
    template_path = str(datadir / ".templates")

    # act
    with pytest.raises(SystemExit) as system_exit:
        template_contents = ScopedPageCreator()._load_template(
            base_path, template_filename, template_path
        )

    # assert
    assert system_exit.value.code == 1
    assert (
        caplog.records[0].message
        == f"Template file {template_path}/some_nonexistent_template.md.tpl not found - exiting"
    )