# Copyright Sage Vaillancourt 2021

import os
from flask import Flask

import writing

INDEX = None


def optimize_css(css: str) -> str:
    import re
    minified_with_comments = "".join(list(map(
        lambda line: re.sub(r'\s*([:{])\s*', '\1', re.sub(r'^\s*', '', line)),
        css.split('\n')
    )))
    return re.sub(r'/\*[\s\S]*?\*/', "", minified_with_comments)


def optimize_css_file():
    root = os.path.dirname(os.getcwd())
    static_dir = root + '/undercover/flaskr/static/'
    css = open(static_dir + 'styles.css', 'r').read()
    minified = optimize_css(css)
    minified_file = open(static_dir + 'styles_min.css', 'w')
    minified_file.write(minified)
    minified_file.close()


def create_app(test_config=None):
    optimize_css()

    app = Flask(__name__, instance_relative_config=True)
    app.config.from_mapping(
        SECRET_KEY='dev',
        DATABASE=os.path.join(app.instance_path, 'flaskr.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(
        writing.writing_blueprint,
        # url_prefix='/writing',
    )

    return app