"""Unit tests for storage-format HTML -> Markdown conversion."""
from confluence_crawler.markdown import (
    page_filename,
    render_markdown,
    slugify,
    storage_to_markdown,
)


def test_slugify_sanitizes_illegal_chars():
    assert slugify('a/b\\c:d*e?f"g<h>i|j') == "a-b-c-d-e-f-g-h-i-j"
    assert slugify("  Hello   World  ") == "Hello-World"
    assert slugify("///") == "untitled"


def test_storage_to_markdown_basic():
    html = "<h1>Hello</h1><p>Some <strong>bold</strong> and <em>italic</em> text.</p>"
    md = storage_to_markdown(html)
    assert "Hello" in md
    assert "**bold**" in md
    assert "*italic*" in md


def test_storage_to_markdown_table():
    html = "<table><tr><td>a</td><td>b</td></tr><tr><td>1</td><td>2</td></tr></table>"
    md = storage_to_markdown(html)
    assert "a" in md and "b" in md and "1" in md and "2" in md


def test_storage_to_markdown_empty():
    assert storage_to_markdown("") == ""
    assert storage_to_markdown("   ") == ""


def test_storage_to_markdown_deeply_nested_no_crash():
    """Regression: deeply nested tables must not raise RecursionError."""
    nested = "<table><tr><td>" * 7000 + "core" + "</td></tr></table>" * 7000
    md = storage_to_markdown(nested)
    assert "core" in md  # content preserved via fallback


def test_render_markdown_has_front_matter():
    page = {
        "id": "123",
        "title": "My Page",
        "space": {"key": "DEV"},
        "version": {"number": 3, "when": "2025-01-01T00:00:00.000Z"},
        "body": {"storage": {"value": "<p>Hello</p>"}},
    }
    md = render_markdown(page, "https://wiki.example.com")
    assert "title: My Page" in md
    assert "page_id: 123" in md
    assert "space: DEV" in md
    assert "https://wiki.example.com/pages/viewpage.action?pageId=123" in md
    assert "# My Page" in md
    assert "Hello" in md


def test_page_filename_unique_and_safe():
    p1 = page_filename({"id": "1", "title": "A/B: C"})
    p2 = page_filename({"id": "2", "title": "A/B: C"})
    assert p1 != p2
    assert p1 == "1_A-B-C.md"
    assert p2 == "2_A-B-C.md"