"""Tests for Markdown renderer."""

from __future__ import annotations

from volumen.markdown import render


class TestBasicRendering:
    def test_renders_bold(self) -> None:
        assert "<strong>bold</strong>" in render("**bold**")

    def test_renders_italic(self) -> None:
        result = render("*italic*")
        assert "<em>italic</em>" in result

    def test_renders_heading(self) -> None:
        assert "<h1" in render("# Title")

    def test_renders_paragraph(self) -> None:
        result = render("Simple paragraph.")
        assert "<p>" in result

    def test_renders_link(self) -> None:
        result = render("[link](https://example.com)")
        assert '<a href="https://example.com"' in result

    def test_renders_unordered_list(self) -> None:
        result = render("- one\n- two\n")
        assert "<ul>" in result
        assert "<li>one</li>" in result


class TestGFMFeatures:
    def test_renders_gfm_table(self) -> None:
        table = "| A | B |\n|---|---|\n| 1 | 2 |\n"
        assert "<table" in render(table)

    def test_renders_fenced_code_block(self) -> None:
        code = "```python\nprint(1)\n```\n"
        html = render(code)
        assert "<pre" in html or "<code" in html

    def test_renders_task_list(self) -> None:
        md = "- [x] Done\n- [ ] Todo\n"
        result = render(md)
        assert "checkbox" in result.lower() or "checked" in result.lower()

    def test_renders_strikethrough(self) -> None:
        result = render("~~strike~~")
        assert "<del>" in result


class TestFigureWrapping:
    def test_image_with_title_wrapped_in_figure(self) -> None:
        result = render('![alt](url "caption")')
        assert "<figure>" in result

    def test_image_without_title_no_wrapping(self) -> None:
        result = render("![alt](url)")
        assert "<figure>" not in result

    def test_figure_includes_figcaption(self) -> None:
        result = render('![alt](url "caption")')
        assert "<figcaption>" in result
        assert "caption" in result


class TestEdgeCases:
    def test_empty_input(self) -> None:
        result = render("")
        assert isinstance(result, str)
        assert result == ""

    def test_plain_text(self) -> None:
        result = render("Hello world")
        assert "Hello world" in result

    def test_html_passthrough(self) -> None:
        result = render("<span>inline</span>")
        assert "<span>" in result