app.py

# Imports

# Flask imports
from flask import Flask, render_template, request, make_response, redirect, session
from json import load, dump # parse and add json data
import urllib.request
import xml.etree.ElementTree as ET

# Import os
import os

# Import config
import config

# Flask app
app = Flask(__name__)

# Add configs
app.config['SECRET_KEY'] = str(os.urandom(64))

# Views
@app.route("/", methods=['GET'])
def index():
    return render_template('flask_index.html')

@app.route("/transportation", methods=['GET'])
def transportation():
    return render_template('transportation.html')

@app.route("/agriculture", methods=['GET'])
def agriculture():
    return render_template('agriculture.html')

@app.route("/electricity", methods=['GET'])
def electricity():
    return render_template('electricity.html')

@app.route("/transportlocation/")
def transportlocation():
    lat1_ = request.args.get('lat1')
    lon1_ = request.args.get('lon1')
    lat2_ = request.args.get('lat2')
    lon2_ = request.args.get('lon2')
    print(lat1_, lon1_)
    r = urllib.request.urlopen(f'https://api.tomtom.com/routing/1/calculateRoute/{lat1_},{lon1_}:{lat2_},{lon2_}?key=9eA3U6IaQC3t12wT4NNgNmvdpWiGw9bn')
    r = r.read()

    root = ET.fromstring(r)
    print(root.tag)
    route_length_meters = int(root[2][0][0].text)
    pnds_carbon_released = round(route_length_meters / 37980.52 * 20, 2)
    if 'pnds_carbon_released' in request.cookies:
        # cookie found
        carbon_cookie = request.cookies['pnds_carbon_released']
        carbon_cookie = f'{carbon_cookie},{pnds_carbon_released}'
        print('carbon_cookie', carbon_cookie)
        total_carbon = [float(x) for x in carbon_cookie.split(',')]
        total_carbon = round(sum(total_carbon), 2)
        res = make_response(render_template('carbon_footprint.html', carbon=pnds_carbon_released, total=total_carbon))
        res.set_cookie('pnds_carbon_released', str(carbon_cookie), max_age=60*60*24*365)
        return res
    else:
        # cookie making
        res = make_response(render_template('carbon_footprint.html', carbon=pnds_carbon_released))#var, list='None'))
        res.set_cookie('pnds_carbon_released', str(pnds_carbon_released), max_age=60*60*24*365)
        return res

# run app
app.run(
    #host='0.0.0.0', # host to view from outside the network
    port=5000, # assign to port 8080
    debug=True # Have debug pages show when there is an error
)