"""
The Client table
"""
from fastapi import APIRouter, HTTPException 
from sqlmodel import Session, select
from app.api.deps import SessionDep, exists
from app.schemas.models import Client
from app.schemas.schemas import ClientCreate
from typing import Sequence

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


@router.get("/", response_model=Client)
def fetch_clients(client: Client, session: SessionDep) -> Sequence[Client]:
    """Fetch client list
    """
    clients = session.exec(select(Client)).all()
    return clients


@router.post("/", response_model=ClientCreate)
def create_client(client_data: ClientCreate, session: SessionDep) -> Client:
    existing = exists(session, Client, tin_number=client_data.tin_number)
    if existing:
        raise HTTPException(status_code=400, detail="Client with this tin number already exists")
    client = Client.model_validate(client_data)
    session.add(client)
    session.commit()
    session.refresh(client)
    return client