from fastapi import APIRouter, HTTPException
from schemas.schemas import LaptopCreate, LaptopResponse, PredictPriceResponse
from services.service import LaptopService
import os

router = APIRouter()

# Инициализация сервиса
MODEL_PATH = os.getenv("MODEL_PATH", "services/laptop_price_model.pkl")
FEATURE_COLUMNS_PATH = os.getenv("FEATURE_COLUMNS_PATH", "services/feature_columns.pkl")
laptop_service = LaptopService(model_path=MODEL_PATH, feature_columns_path=FEATURE_COLUMNS_PATH)

@router.post("/predict_price/", response_model=PredictPriceResponse, summary="Predict laptop price", description="Predict the price of a laptop based on its specifications.", response_description="The predicted price of the laptop.")
def predict_price(data: LaptopCreate):
    """
    Predict the price of a laptop given its specifications.

    - **processor**: Type of processor (e.g., i5, i7)
    - **ram**: Amount of RAM in GB
    - **os**: Operating system (e.g., Windows, MacOS)
    - **ssd**: Size of SSD in GB
    - **display**: Size of the display in inches
    """
    try:
        return laptop_service.predict_price(data.dict())
    except Exception as e:
        raise HTTPException(status_code=400, detail=str(e))