import os

from flask import Flask
from flask_bcrypt import Bcrypt
from flask_cors import CORS
from flask_sqlalchemy import SQLAlchemy

# instantiate the db
db = SQLAlchemy()
cors = CORS()
bcrypt = Bcrypt()


def create_app(script_info=None):
    # instantiate the app
    app = Flask(__name__)

    # set config
    app_settings = os.getenv("APP_SETTINGS")
    app.config.from_object(app_settings)

    # set up extensions
    db.init_app(app)
    cors.init_app(app, resources={r"*": {"origins": "*"}})

    # register api
    from src.api import api

    api.init_app(app)

    # shell context for flask cli
    @app.shell_context_processor
    def ctx():
        return {"app": app, "db": db}

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