#!/usr/bin/env python3
"""
main.py — Cloud Run entrypoint for OSVauco OPAX agent.
Exposes a FastAPI HTTP API that wraps agent.run().
"""

import os
import sys

# Ensure agents/core-logic is on the path
sys.path.insert(0, os.path.join(os.path.dirname(__file__), "agents", "core-logic"))

from fastapi import FastAPI, HTTPException
from pydantic import BaseModel
from agent import run  # agents/core-logic/agent.py

app = FastAPI(title="OSVauco OPAX Agent")


class RunRequest(BaseModel):
    message: str
    user_id: str = "opax"
    session_id: str = "default"
    mode: str = "A"


@app.get("/health")
def health():
    return {"status": "ok"}


@app.post("/run")
def run_agent(req: RunRequest):
    try:
        response = run(
            message=req.message,
            user_id=req.user_id,
            session_id=req.session_id,
            mode=req.mode,
        )
        return {"response": response}
    except PermissionError as e:
        raise HTTPException(status_code=403, detail=str(e))
    except ValueError as e:
        raise HTTPException(status_code=400, detail=str(e))
    except Exception as e:
        raise HTTPException(status_code=500, detail=str(e))


if __name__ == "__main__":
    import uvicorn
    port = int(os.environ.get("PORT", 8080))
    uvicorn.run(app, host="0.0.0.0", port=port)