from flask import Flask
from flask_sqlalchemy import SQLAlchemy
from flask_login import LoginManager
from flask_migrate import Migrate
from config import Config

db = SQLAlchemy()
login_manager = LoginManager()
migrate = Migrate()

def create_app(config_class=Config):
    app = Flask(__name__)
    app.config.from_object(config_class)

    db.init_app(app)
    login_manager.init_app(app)
    migrate.init_app(app, db)

    login_manager.login_view = "auth.login"
    login_manager.login_message_category = "info"

    from app.auth.routes import auth_bp
    from app.main.routes import main_bp
    app.register_blueprint(auth_bp, url_prefix="/auth")
    app.register_blueprint(main_bp)

    from app import models  # noqa: F401 — registers models with SQLAlchemy

    return app