"""
App object setup for application.

Contains the create_app() procedure for instansiating new Flask app
ins. Settings are instanciated from instance/settings.py, and extra
functionallity is pulled in from other modules.
"""

import logging
import random

import flask
from flask import (
        Flask,
        request,
        flash,
        redirect,
        url_for
        )

from .app import model
from .app import cmdline
from .app import api


logging.basicConfig(level=logging.DEBUG)


def create_app():
    """
    Create new flask app.

    Should bind everything needed to it.

    This method is also used by `flask run`
    https://flask.palletsprojects.com/en/2.1.x/cli/
    """
    app = Flask(__name__, instance_relative_config=True)

    app.config.from_pyfile('settings.py')

    for module in [
        model,
        cmdline,
        api,
    ]:
        module.init_app(app)

    # not API
    @app.route('/')
    def root_page():
        return flask.render_template(
                'start_page.html',
                hosts=model.Host.query.order_by(model.Host.fqdn),
                random=random,
                str=str,
                )

    # API?
    @app.route('/remove', methods=['POST'])
    def remove_classes():
        print(request.form['fqdn'])
        print(request.form.getlist('cls'))
        flash('Classes removed')
        return redirect(url_for('root_page'))

    # a /enc route for the classifier might be a good idea

    return app