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from __future__ import annotations

import pytest

from zensical.markdown.render import _cleanup_toc_label

# ---------------------------------------------------------------------------
# Cleaning up TOC
# ---------------------------------------------------------------------------


class TestCleanupTocLabel:
    @pytest.mark.parametrize(
        ("html", "expected"),
        [
            # Links --------------------------------------------------------
            pytest.param(
                '<a href="#foo" id="foo">Heading</a>',
                "Heading",
                id="anchor_with_id_attr",  # id= is stripped before <a>
            ),
            pytest.param(
                '<a href="#x">Hello <em>world</em></a>',
                "Hello <em>world</em>",
                id="anchor_preserves_inner_content",
            ),
            pytest.param(
                '<a href="#x">\nLine one\nLine two\n</a>',
                "\nLine one\nLine two\n",
                id="multiline_anchor",
            ),
            pytest.param(
                '<a href="#a">First</a> and <a href="#b">Second</a>',
                "First and Second",
                id="multiple_anchors",
            ),
            # Abbreviations -----------------------------------------------
            pytest.param(
                '<abbr title="HyperText Markup Language">HTML</abbr>',
                "HTML",
                id="abbr_tag",
            ),
            pytest.param(
                'Use <abbr title="Cascading Style Sheets">CSS</abbr> for style',
                "Use CSS for style",
                id="abbr_preserves_surrounding_text",
            ),
            pytest.param(
                '<abbr title="HyperText Markup Language">HTML</abbr>'
                " and "
                '<abbr title="Cascading Style Sheets">CSS</abbr>',
                "HTML and CSS",
                id="multiple_abbreviations",
            ),
            pytest.param(
                '<abbr title="foo">\nAbbr\n</abbr>',
                "\nAbbr\n",
                id="multiline_abbr",
            ),
            # Images ------------------------------------------------------
            pytest.param(
                '<img src="image.png" alt="Image">',
                "",
                id="img_tag",
            ),
            pytest.param(
                '<img src="image.png" alt="Image">Text',
                "Text",
                id="img_tag_with_text_after",
            ),
            pytest.param(
                'Text<img src="image.png" alt="Image">',
                "Text",
                id="img_tag_with_text_before",
            ),
            # Combined and passthrough ------------------------------------
            pytest.param(
                '<a href="#x">Intro to '
                '<abbr title="HyperText Markup Language">HTML</abbr>'
                '<img src="image.png" alt="Image">'
                "</a>",
                "Intro to HTML",
                id="combined_and_passthrough",
            ),
            pytest.param(
                "Just plain text",
                "Just plain text",
                id="plain_text_unchanged",
            ),
        ],
    )
    def test_cleans(self, html: str, expected: str) -> None:
        assert _cleanup_toc_label(html) == expected