# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the BSD-style license found in the
# LICENSE file in the root directory of this source tree.

"""
FastAPI application for the Episteme environment.
"""

import os

from fastapi.responses import JSONResponse

try:
    from openenv.core.env_server.http_server import create_app
except Exception as e:
    raise ImportError(
        "openenv is required. Install dependencies with 'uv sync'"
    ) from e

try:
    from ..models import EpistemeAction, EpistemeObservation
    from .episteme_env_environment import EpistemeEnvironment
except ImportError:
    from models import EpistemeAction, EpistemeObservation
    from server.episteme_env_environment import EpistemeEnvironment

app = create_app(
    EpistemeEnvironment,
    EpistemeAction,
    EpistemeObservation,
    env_name="episteme_env",
    max_concurrent_envs=int(os.getenv("MAX_CONCURRENT_ENVS", "10")),
)

@app.get("/")
async def root():
    return JSONResponse({"status": "ok", "environment": "episteme"})


def main(host: str = "0.0.0.0", port: int = 8000):
    import uvicorn
    uvicorn.run(app, host=host, port=port)


if __name__ == "__main__":
    import argparse
    parser = argparse.ArgumentParser()
    parser.add_argument("--port", type=int, default=8000)
    args = parser.parse_args()
    main(port=args.port)