from sqlalchemy.orm import Session
from typing import Optional
from app.models.user import User, AuthProvider
from app.schemas.user import UserCreate
from app.utils.auth import get_password_hash


def get_user_by_email(db: Session, email: str) -> Optional[User]:
    return db.query(User).filter(User.email == email).first()


def get_user_by_phone(db: Session, phone_number: str) -> Optional[User]:
    return db.query(User).filter(User.phone_number == phone_number).first()


def get_user_by_id(db: Session, user_id: int) -> Optional[User]:
    return db.query(User).filter(User.id == user_id).first()


def create_user(db: Session, user: UserCreate) -> User:
    db_user = User(
        email=user.email,
        phone_number=user.phone_number,
        name=user.name,
        auth_provider=user.auth_provider,
        is_verified=True
        if user.auth_provider in [AuthProvider.GOOGLE, AuthProvider.APPLE]
        else False,
    )

    if user.password:
        db_user.password_hash = get_password_hash(user.password)

    db.add(db_user)
    db.commit()
    db.refresh(db_user)
    return db_user


def authenticate_user(db: Session, email: str, password: str) -> Optional[User]:
    from app.utils.auth import verify_password

    user = get_user_by_email(db, email)
    if not user or not user.password_hash:
        return None
    if not verify_password(password, user.password_hash):
        return None
    return user


def verify_user_phone(db: Session, phone_number: str) -> Optional[User]:
    user = get_user_by_phone(db, phone_number)
    if user:
        user.is_verified = True
        db.commit()
        db.refresh(user)
    return user