from database import get_db
from dtos import to_db, to_db_existing_contact
from models import SMSContact, SMSMessage as SMSDBMessage
from schemas import SMSMessage
from sqlalchemy.orm import joinedload


def inbound_sms_handler(message: SMSMessage) -> None:
    db = next(get_db())
    payload = None

    sms_contact_exists = db.query(SMSContact).filter(SMSContact.phone_number == message.data.attributes.to_number).first()
    
    if sms_contact_exists:
        payload = to_db_existing_contact(message)
        payload.to_number = sms_contact_exists.id
    else:
        payload = to_db(message)    
    
    db.add(payload)
    db.commit()
    db.refresh(payload)



def retrieve_sms_messages_by_phone_number(number: str, limit: int , page: int) -> SMSContact:
    db = next(get_db())
    skip = (page - 1) * limit
    messages = db.query(SMSContact).filter(SMSContact.phone_number == number).options(joinedload(SMSContact.messages)).limit(limit).offset(skip).first()
    return messages