"""T#30 — guard the new dashboard pages against emoji creep.

Design pillar (`dashboard/DESIGN.md`): the unified Echo dashboard uses Lucide
icons exclusively, no emojis in the chrome. This test asserts that no emoji
codepoints sneak into the static HTML files we ship.
"""
from __future__ import annotations

import re
from pathlib import Path

import pytest

# Symbols + emoticons + transport + miscellaneous + dingbats. Covers the
# common emoji blocks; not exhaustive but matches what the spec asked for.
EMOJI_RE = re.compile(
    r'[\U0001F300-\U0001F9FF\U0001FA00-\U0001FAFF☀-➿]'
)

DASHBOARD_DIR = Path(__file__).resolve().parent.parent / "dashboard"


# Pages that the unified-dashboard initiative declares emoji-free.
# index.html is excluded for now: it's the legacy unified panel page that
# predates DESIGN.md and still contains historical emoji (👤👷🤖🔴…). It
# will be migrated separately; that cleanup gets its own follow-up.
_UNIFIED_PAGES = ["workspace.html", "login.html"]


def _emoji_files():
    """Only run the test for pages that exist on disk.

    workspace.html may not be in place during partial rollouts; skip silently
    so the suite doesn't hard-fail during the unified-dashboard migration.
    """
    return [name for name in _UNIFIED_PAGES if (DASHBOARD_DIR / name).is_file()]


@pytest.mark.parametrize("html_file", _emoji_files() or ["__skip__"])
def test_no_emoji_in_dashboard_html(html_file):
    if html_file == "__skip__":
        pytest.skip("no unified dashboard pages are present yet")
    content = (DASHBOARD_DIR / html_file).read_text(encoding="utf-8")
    found = EMOJI_RE.findall(content)
    assert not found, f"Emoji found in {html_file}: {found}"