from fastapi import APIRouter, HTTPException
from pydantic import BaseModel

from app.core.config import settings

router = APIRouter(prefix="/bot", tags=["bot"])

# Instance globale du bot (initialisée dans main.py)
_bot_runner = None


def set_bot_runner(runner) -> None:
    global _bot_runner
    _bot_runner = runner


class BotStartRequest(BaseModel):
    instrument: str = ""
    granularity: str = ""


@router.get("/status")
async def bot_status():
    if _bot_runner is None:
        return {"running": False, "message": "Bot non initialisé"}
    return _bot_runner.get_status()


@router.post("/start")
async def start_bot(req: BotStartRequest):
    if _bot_runner is None:
        raise HTTPException(503, "Bot non initialisé")
    if req.instrument:
        _bot_runner.instrument = req.instrument
    if req.granularity:
        _bot_runner.granularity = req.granularity
    await _bot_runner.start()
    return {"message": "Bot démarré", "status": _bot_runner.get_status()}


@router.post("/stop")
async def stop_bot():
    if _bot_runner is None:
        raise HTTPException(503, "Bot non initialisé")
    await _bot_runner.stop()
    return {"message": "Bot arrêté"}