"""Shared fixtures.

Nothing here starts a real browser. Engine level tests skip themselves when the
engine is not installed in the current environment.
"""

from __future__ import annotations

import pytest


def build_document(sections: int, paragraphs_per_section: int = 12) -> str:
    """Synthetic document with predictable structure and size."""
    parts = [
        "<!DOCTYPE html><html><head><meta charset='utf-8'>",
        "<style>body{font-family:sans-serif;font-size:11pt}</style>",
        "</head><body>",
    ]
    for index in range(sections):
        parts.append(f"<section id='sekce-{index}'><h1>Kapitola {index + 1}</h1>")
        for paragraph in range(paragraphs_per_section):
            parts.append(
                f"<p>Odstavec {paragraph + 1} kapitoly {index + 1}. "
                + ("Text s ceskou diakritikou pro overeni fontu. " * 8)
                + "</p>"
            )
        parts.append("</section>")
    parts.append("</body></html>")
    return "".join(parts)


@pytest.fixture
def small_document() -> str:
    return build_document(sections=3, paragraphs_per_section=2)


@pytest.fixture
def large_document() -> str:
    """Roughly twelve hundred pages, used for memory and timing measurements."""
    return build_document(sections=400, paragraphs_per_section=14)


@pytest.fixture
def unsplittable_document() -> str:
    body = "".join(f"<p>Odstavec {index}. " + ("Text. " * 40) + "</p>" for index in range(200))
    return f"<!DOCTYPE html><html><head><meta charset='utf-8'></head><body>{body}</body></html>"