# Copyright Sage Vaillancourt 2021

import os
import sys

from flask import Flask
from flask_minify import Minify

import undercover.routes
from undercover.css import optimize_css_file


def create_app(test_config=None):
    optimize_css_file()

    app = Flask(__name__, instance_relative_config=True)
    Minify(app=app, html=True, js=True, cssless=True)
    secret_key = os.environ.get('UNDERCOVER_SECRET_KEY')
    if not secret_key:
        sys.stderr.write("WARNING: UNDERCOVER_SECRET_KEY is not defined! Application may be insecure.\n")
        secret_key = "dev"
    app.config.from_mapping(
        SECRET_KEY=secret_key,
        # DATABASE=os.path.join(app.instance_path, 'undercover.sqlite'),
    )

    # if test_config is None:
    #     app.config.from_pyfile('config.py', silent=True)
    # else:
    #     app.config.from_mapping(test_config)

    os.makedirs(app.instance_path, exist_ok=True)

    app.register_blueprint(routes.writing_blueprint)

    return app