# Copyright Sage Vaillancourt 2021

import os

from flask import Flask

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)
    app.config.from_mapping(
        SECRET_KEY='dev',
        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