app/__init__.py

import logging
from logging.handlers import SMTPHandler, RotatingFileHandler
import os

from flask import Flask, request, current_app
from flask_bootstrap import Bootstrap
from flask_login import LoginManager
from flask_mail import Mail
from flask_migrate import Migrate
from flask_misaka import Misaka
from flask_sqlalchemy import SQLAlchemy

from config import Config

db = SQLAlchemy()
migrate = Migrate()
login = LoginManager()
login.login_view = 'user.login'
mail = Mail()
bootstrap = Bootstrap()
markdown = Misaka()

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

  login.login_message_category = "danger"
  db.init_app(app)
  migrate.init_app(app, db)
  login.init_app(app)
  mail.init_app(app)
  bootstrap.init_app(app)
  markdown.init_app(app)

  from app.api import bp as api_bp
  app.register_blueprint(api_bp, url_prefix='/api')

  from app.user import bp as user_bp
  app.register_blueprint(user_bp)

  from app.booking import bp as booking_bp
  app.register_blueprint(booking_bp)

  from app.errors import bp as errors_bp
  app.register_blueprint(errors_bp)

  from app.main import bp as main_bp
  app.register_blueprint(main_bp)

  if not app.debug and not app.testing:
    auth = None
    secure = None

    app.faq_content = load_content(app.config['CONTENT_DIR'], 'faq.md')
    app.thelabs_content = load_content(app.config['CONTENT_DIR'], 'thelabs.md')
    app.software_content = load_content(app.config['CONTENT_DIR'], 'software.md')
    app.statistics_content = load_content(app.config['CONTENT_DIR'], 'statistics.md')
    app.news_content = load_content(app.config['CONTENT_DIR'], 'news.md')
    app.blog_content = load_content(app.config['CONTENT_DIR'], 'blog.md')

    mail_handler = SMTPHandler(mailhost='localhost',
                               fromaddr='nolabs-admin@nordix.org',
                               toaddrs=app.config['NOLABS_ADMINS'],
                               subject='Nolabs Failure',
                               credentials=auth,
                               secure=secure)
    mail_handler.setLevel(logging.ERROR)
    app.logger.addHandler(mail_handler)

    logs_dir = app.config['LOGS_DIR']
    file_handler = logs_dir + '/nolabs.log'
    file_handler = RotatingFileHandler(file_handler, maxBytes=10240,
                                       backupCount=10)
    file_handler.setFormatter(logging.Formatter(
        '%(asctime)s %(levelname)s: %(message)s [in %(pathname)s:%(lineno)d]'))
    file_handler.setLevel(logging.INFO)
    app.logger.addHandler(file_handler)

    app.logger.setLevel(logging.INFO)
    app.logger.info('Nolabs startup')

  return app

def load_content(content_dir, filename):
  file_path = content_dir + '/' + filename
  file_content = ""
  with open(file_path, 'r') as file:
    file_content = file.read()
  return file_content

from app import models