#!/usr/bin/env python3
"""Cross-engine smoke test for MOLT.

The acceptance bar is "playable in Chrome, Safari and Firefox", so this drives all
three engines rather than asserting it. It runs the deterministic attract bot
(`?demo=1`) and checks two things per engine: no page error was raised, and the
simulation actually advanced (waves, kills and shed shells all moved).

    python3 -m pip install playwright && python3 -m playwright install
    python3 test.py
"""
import json
import pathlib
import sys

from playwright.sync_api import sync_playwright

URL = (pathlib.Path(__file__).parent / "index.html").as_uri() + "?demo=1"
SECONDS = 45
rows, failed = [], False

with sync_playwright() as pw:
    for name in ("chromium", "firefox", "webkit"):
        errors = []
        browser = getattr(pw, name).launch()
        page = browser.new_page(viewport={"width": 1100, "height": 800})
        page.on("pageerror", lambda e: errors.append(str(e)))
        page.goto(URL)
        page.wait_for_timeout(SECONDS * 1000)
        s = page.evaluate(
            "({wave:G.wave, kills:G.kills, shells:G.shells.length,"
            " score:Math.round(G.score), t:Math.round(G.t)})")
        browser.close()

        advanced = s["wave"] >= 2 and s["t"] >= SECONDS - 10
        ok = advanced and not errors
        failed |= not ok
        rows.append((name, ok, errors, s))

for name, ok, errors, s in rows:
    print(f"{name:<9} {'ok  ' if ok else 'FAIL'} "
          f"{'no page errors' if not errors else errors[0][:60]:<16} "
          f"wave {s['wave']} @ {s['t']}s   {json.dumps(s)}")

sys.exit(1 if failed else 0)