from flask_bcrypt import Bcrypt
from models import db, User, UserEventAssociation


bcrypt = Bcrypt()

class UserService:
    @staticmethod
    def create_user(data):
        new_user = User(
            name=data['username'],
            email=data['email'],
            location=data['location'],
            password_hash=bcrypt.generate_password_hash(data['password']).decode('utf-8')
        )
        db.session.add(new_user)
        db.session.commit()
        return new_user.to_dict()

    @staticmethod
    def get_all_users():
        users = User.query.all()
        return [user.to_dict() for user in users]

    @staticmethod
    def get_user_by_email(email):
        return User.query.filter_by(email=email).first()
    
    @staticmethod
    def get_user_by_id(user_id):
        user = User.query.filter_by(id=user_id).first()
        if user:
            return user.to_dict()
        return 

    @staticmethod
    def verify_user(data):
        user = UserService.get_user_by_email(data['email'])
        if user and bcrypt.check_password_hash(user.password_hash, data['password']):
            return user
        return None
    
    @staticmethod
    def get_users_with_same_location_but_not_been_notifyed(location):
        users = User.query.filter_by(location=location).all()
        users = [user for user in users if not UserEventAssociation.query.filter_by(user_id=user.id).first()]
        return [user.to_dict() for user in users]