"""Legal shells and Open Graph images live under periscope/src."""

from __future__ import annotations

from pathlib import Path

ROOT = Path(__file__).resolve().parents[1]
SRC = ROOT / "periscope" / "src" / "frontend" / "src"


def _text(rel: str) -> str:
    path = SRC / rel
    assert path.is_file(), rel
    return path.read_text(encoding="utf-8")


def test_legal_and_og_are_src():
    for rel in (
        "components/legal/legal-page.tsx",
        "components/legal/changelog-timeline.tsx",
        "components/legal/file-guide-page.tsx",
        "app/opengraph-image.tsx",
        "app/twitter-image.tsx",
    ):
        head = _text(rel)[:400]
        assert "Native Periscope overlay" not in head


def test_legal_page_exports():
    text = _text("components/legal/legal-page.tsx")
    assert "export function MarkdownContent" in text
    assert "export function LegalPageShell" in text
    assert "export function LegalPage" in text
    assert "OPERATOR_NAME" in text
    assert "PeriscopeMark" in text


def test_changelog_timeline_parses_tagged_items():
    text = _text("components/legal/changelog-timeline.tsx")
    assert "export function ChangelogTimeline" in text
    assert "function parseReleases" in text
    assert "New|Improved|Fixed" in text
    assert "What's new in Periscope." in text


def test_file_guide_splits_on_eda_export_heading():
    text = _text("components/legal/file-guide-page.tsx")
    assert "export function FileGuidePage" in text
    assert "## Exporting from your EDA tool" in text
    assert "function splitGuide" in text
    assert 'from "@/components/ui/tabs"' in text


def test_opengraph_contract():
    og = _text("app/opengraph-image.tsx")
    assert 'from "next/og"' in og
    assert "export const size = { width: 1200, height: 630 }" in og
    assert 'export const contentType = "image/png"' in og
    assert "SITE_URL" in og
    tw = _text("app/twitter-image.tsx")
    assert 'from "./opengraph-image"' in tw
    assert "export { default, alt, size, contentType }" in tw