from fastapi import APIRouter, Depends, HTTPException, status
from sqlalchemy.orm import Session
from core.database import get_db
from schemas.book import BookCreate, BookSchema
from helpers.book_helpers import create_book, book_exists

router = APIRouter()

@router.post("/books", status_code=status.HTTP_201_CREATED, response_model=BookSchema)
async def add_book(
    book_data: BookCreate,
    db: Session = Depends(get_db)
):
    """
    Add a new book to the database using title and author
    """
    # Check if book already exists
    if book_exists(db, book_data.title, book_data.author):
        raise HTTPException(
            status_code=status.HTTP_400_BAD_REQUEST,
            detail="Book with this title and author already exists"
        )
    
    # Create the book
    new_book = create_book(db, book_data)
    return new_book