"""Phase 01 smoke E2E: the app boots, serves the local frontend, and a chat
round-trip never leaves a stale button (answer or error banner, both fine).

Run:  uv run pytest tests/e2e/test_smoke.py -v
"""
from __future__ import annotations

import httpx
from playwright.sync_api import Page, expect

from e2e.auth_helpers import login


def test_health_endpoint(app_url: str) -> None:
    r = httpx.get(f"{app_url}/api/health", timeout=5)
    assert r.status_code == 200
    assert r.json()["status"] == "ok"


def test_index_page_loads_locally(page: Page, app_url: str) -> None:
    page.goto(app_url)
    assert page.title() == "Brain of Reese"
    assert page.locator(".brand").is_visible()
    # No external (CDN) resources in the document.
    html = page.content()
    assert 'src="http' not in html
    assert 'href="http' not in html.replace('href="http://www.w3.org', "")


def test_chat_roundtrip_never_stale_button(page: Page, app_url: str) -> None:
    # Phase 79: chat is require_user-gated (and the in-app token gate
    # locks #main for anonymous) — the round-trip signs in as admin
    # first (real form login; DB-free, so the story's DB-down error-
    # banner path still works).
    login(page, app_url, next="/")
    page.locator("#message-input").fill("hello brain")
    page.locator("#send-btn").click()

    # User bubble appears first.
    page.locator(".msg.user .bubble").first.wait_for(state="visible", timeout=10_000)
    # Then either a streamed Brain answer (DB up) or an error banner
    # (DB down) — but the turn must always complete.
    page.wait_for_selector(
        ".msg.brain .bubble, #kb-banner.is-error",
        state="visible",
        timeout=20_000,
    )

    # Button is never left stuck: back to "Send" and enabled.
    expect(page.locator("#send-btn")).to_be_enabled(timeout=10_000)
    expect(page.locator("#send-label")).to_have_text("Send", timeout=10_000)