"""Routes for core Flask app."""

import os

from flask import Blueprint, render_template

from flask_assets import Environment, Bundle

from flask import current_app as app

main_bp = Blueprint('main_bp', __name__,

template_folder='templates',

static_folder='static')

assets = Environment(app)

Environment.auto_build = True

Environment.debug = False

less_bundle = Bundle('less/*.less',

filters='less,cssmin',

output='dist/css/styles.css',

extra={'rel': 'stylesheet/less'})

js_bundle = Bundle('js/*.js',

filters='jsmin',

output='dist/js/main.js')

assets.register('less_all', less_bundle)

assets.register('js_all', js_bundle)

if app.config['FLASK_ENV'] == 'development':

less_bundle.build(force=True)

js_bundle.build()

@main_bp.route('/')

def home():

"""Landing page."""

return render_template('index.html',

title='Plotly Flask Tutorial.',

template='home-template',

body="This is an example homepage served with Flask.")