# __init__.py in not in users folder

# for setting up environment variables
import os
# why is this line here
from flask import Flask

# make SQLAlchemy work
from flask_sqlalchemy import SQLAlchemy
# make login work


from flask_login import LoginManager
# from flask.ext.login import LoginManager

from flask_mail import Mail
#
from flask_migrate import Migrate

migrate = Migrate()


app = Flask(__name__)
# setup databases
db = SQLAlchemy()
# Make Login user variable work ?

login_manager = LoginManager()

#You get a custom login message when @login_required appears in the code.
login_manager.login_message_category = 'Login is required'


# make csrf protection work
from flask_wtf.csrf import CSRFProtect
# Setup CSRF protection. This allows html forms to work and be secure
csrf = CSRFProtect()

# make mail work?
mail = Mail()
# make it so @login_required sends you to the login page.

login_manager.login_view = 'login'

# imports config from config.py
from app.config import Config

def create_app(config_class=Config):

    # what does this do?
    app.config.from_object(config_class)

    db.init_app(app)

    login_manager.init_app(app)

    csrf.init_app(app)
    # add mail = Mail(app) to .init_app
    mail.init_app(app)


    migrate.init_app(app, db)
    # add environment variables 27:25 https://www.youtube.com/watch?v=vutyTx7IaAI



    from app.userinfo.routes import userinfo
    from app.postinfo.routes import postinfo
    from app.email.routes import email

    # why lowercse b in blueprints ?
    app.register_blueprint(email)
    app.register_blueprint(userinfo)
    app.register_blueprint(postinfo)
    return app