"""Run Linux players briefly under WSL; this checks startup, not policy quality."""
import argparse
import json
import subprocess
from pathlib import Path

parser = argparse.ArgumentParser()
parser.add_argument("--root", required=True, type=Path)
parser.add_argument("--environments", default="Match3VectorObs,Basic,3DBall,PushBlockWithInput")
parser.add_argument("--report-name", default="linux-startup.json")
args = parser.parse_args()
reports = args.root / "reports"
reports.mkdir(exist_ok=True)
results = {}
for name in args.environments.split(","):
    if name not in ("Match3VectorObs", "Basic", "3DBall", "PushBlockWithInput"):
        raise ValueError(f"Unknown environment {name}")
    player = args.root / "builds" / "linux" / name / f"{name}.x86_64"
    player.chmod(player.stat().st_mode | 0o111)
    log = reports / f"{name}-linux-startup.log"
    process = subprocess.Popen([str(player), "-batchmode", "-nographics", "-logFile", str(log)],
                               stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
    alive = False
    try:
        code = process.wait(timeout=10)
        raise RuntimeError(f"{name} exited unexpectedly with {code}")
    except subprocess.TimeoutExpired:
        alive = True
    finally:
        if process.poll() is None:
            process.terminate()
            try:
                process.wait(timeout=5)
            except subprocess.TimeoutExpired:
                process.kill()
                process.wait()
    text = log.read_text(errors="replace")
    initialized = "Initialize engine version: 6000.0.40f1" in text
    results[name] = {"alive_after_seconds": 10 if alive else 0, "engine_initialized": initialized,
                     "passed": alive and initialized, "validation": "startup only; no policy connected"}
    print(json.dumps({name: results[name]}), flush=True)
    if not results[name]["passed"]:
        raise RuntimeError(f"{name} failed Linux startup; inspect {log}")
(reports / args.report_name).write_text(json.dumps(results, indent=2) + "\n")