from app.models.user_model import User
from app.services.db_service import db

class UserService:

    @staticmethod
    def register_user(name, email, password):
        if User.query.filter_by(email=email).first():
            return None

        user = User(name=name, email=email)
        user.set_password(password)

        db.session.add(user)
        db.session.commit()
        return user

    @staticmethod
    def validate_login(email, password):
        user = User.query.filter_by(email=email).first()
        if user and user.check_password(password):
            return user
        return None

    @staticmethod
    def get_all_users():
        return User.query.all()