from flask_sqlalchemy import SQLAlchemy
from flask_login import LoginManager
from datetime import datetime

db = SQLAlchemy()
login_manager = LoginManager()


def init_db(app):
    """Initialize database with Flask app."""
    db.init_app(app)
    login_manager.init_app(app)
    login_manager.login_view = "login"
    login_manager.login_message = "Please log in to access this page."

    with app.app_context():
        db.create_all()

    return db