from fastapi import APIRouter, Depends, HTTPException, status
from sqlalchemy.orm import Session
from typing import List
from app.database.database import get_db
from app.schemas.order import OrderCreate, OrderResponse
from app.services.order import (
    create_order,
    get_order_by_id,
    get_user_orders,
    update_order_status,
)
from app.services.auth import verify_token

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


def get_user_id_from_token(token: str) -> int:
    user_id = verify_token(token)
    if user_id is None:
        raise HTTPException(
            status_code=status.HTTP_401_UNAUTHORIZED,
            detail="Invalid token",
        )
    return user_id


@router.post("", response_model=OrderResponse)
def create_new_order(token: str, order_data: OrderCreate, db: Session = Depends(get_db)):
    user_id = get_user_id_from_token(token)
    order = create_order(db, user_id, order_data)
    if not order:
        raise HTTPException(
            status_code=status.HTTP_400_BAD_REQUEST,
            detail="Cannot create order with empty cart",
        )
    return order


@router.get("/user/orders", response_model=List[OrderResponse])
def get_user_order_history(token: str, db: Session = Depends(get_db)):
    user_id = get_user_id_from_token(token)
    return get_user_orders(db, user_id)


@router.get("/{order_id}", response_model=OrderResponse)
def get_order(order_id: int, token: str, db: Session = Depends(get_db)):
    user_id = get_user_id_from_token(token)
    order = get_order_by_id(db, order_id)
    if not order or order.user_id != user_id:
        raise HTTPException(status_code=404, detail="Order not found")
    return order