"""
Chat Router - Thin layer only
"""

from fastapi import APIRouter, Request
from services.chat_service import ChatService
from services.polar_service import PolarService

router = APIRouter()

@app.post("/")
async def chat(payload: dict, request: Request):
    user_id = payload.get("user_id")
    user_msg = payload.get("message", "").strip()
    model_id = payload.get("model_id") or "neurones-pro-1.0"
    ip = request.client.host if request.client else "127.0.0.1"

    user_email = ""
    try:
        from firebase_admin import auth as fb_auth
        fb_user = fb_auth.get_user(user_id)
        user_email = fb_user.email or ""
    except:
        pass

    polar_premium = await PolarService.verify_subscription(email=user_email, firebase_uid=user_id)
    
    if is_rate_limited(user_id, is_premium=polar_premium):
        return {"response": "⏳ Rate limit reached."}

    result = await ChatService.process_message(user_id, user_msg, model_id)
    return result