"""Host the SUPERBEAM OpenEnv server (envs/superbeam_env) as a Modal web endpoint.

A free alternative to a Docker Space (HF requires PRO for Docker Spaces on free hardware).
Scales to zero when idle (min_containers=0), so it costs nothing while unused.

  python scripts/prepare_superbeam_env.py          # bundle the game files into envs/superbeam_env/vendor
  modal deploy scripts/deploy_env_modal.py         # prints the public URL

Clients use that URL exactly like a Space URL (base_url=...), e.g. envs/superbeam_env/client.py.
"""
from pathlib import Path

import modal

ENV_DIR = Path(__file__).resolve().parent.parent / "envs" / "superbeam_env"

image = (
    modal.Image.debian_slim(python_version="3.12")
    .pip_install("openenv==0.11.0", "fastapi", "uvicorn[standard]", "websockets", "numpy", "pydantic")
    .env({"PYTHONPATH": "/app/env", "ENABLE_WEB_INTERFACE": "true", "SUPERBEAM_LEVEL": "classic"})
    .add_local_dir(str(ENV_DIR), "/app/env", ignore=["__pycache__", "*.pyc", ".venv*"])
)

app = modal.App("superbeam-env", image=image)


@app.function(min_containers=0, scaledown_window=300, timeout=3600)
@modal.concurrent(max_inputs=16)
@modal.asgi_app()
def web():
    import os
    import sys
    os.chdir("/app/env")
    sys.path.insert(0, "/app/env")
    from server.app import app as fastapi_app
    return fastapi_app