from flask import Flask
from flask_migrate import Migrate
from flask_sqlalchemy import SQLAlchemy

db = SQLAlchemy()
migrate = Migrate()


def create_app():
    APP = Flask(__name__)
    APP.config["SQLALCHEMY_DATABASE_URI"] = "sqlite:///schedule.db"
    APP.config["SQLALCHEMY_TRACK_MODIFICATIONS"] = False
    APP.config["MAX_CONTENT_LENGTH"] = 16 * 1000
    APP.config["UPLOAD_FOLDER"] = "tmpupload"
    db.init_app(APP)
    migrate.init_app(APP, db, render_as_batch=True)

    return APP