express.js

const express = require('express');
const app = express();
const port = process.env.PORT || 3000;
var hbs = require('hbs');
const fs = require('fs');

const geocode = require('./geocode/geocode');
const weather = require('./weather/weather');

hbs.registerHelper('currentYear', function () {
    return new Date().getFullYear();
});
hbs.registerHelper('screamIt', (text) => {
    return text.toUpperCase();
});

hbs.registerPartials(__dirname + '/views/partials');
app.set('view engine', 'hbs');

app.use((req, res, next) => {
    var now = new Date().toString();
    var log = `${now} : ${req.method} ${req.url}`;
    console.log(log);
    fs.appendFile('server.log', log + '\n', (err) => {
        if (err) {
            console.log('some error while writing log file');
        }
    });
    next();
});

app.use(express.static(__dirname + "/public"));

app.get('/', (req, res) => {
    res.render('home.hbs', {
        pageTitle: 'home page',
        welcomeMessage: 'welcome message'
    });
});

app.get('/about', (req, res) => {
    //res.send('<h1>About us!</h1>')
    res.render('about.hbs', {
        pageTitle: 'About page'
    });
});
app.get('/bad', (req, res) => {
    //res.send('<h1>Hello World!</h1>')
    res.send({
        errorMessage: 'bad request'
    })
});

app.get('/projects', (req, res) => {
    //res.send('<h1>About us!</h1>')
    res.render('projects.hbs', {
        pageTitle: 'Projects page'
    });
});

app.get('/mapquest', function(request, response){
    response.sendfile('public/example_mapquest2.html');
});

app.get('/weather', (req, res) => {
    if (!req.query.address) {
        return res.send({
            error: 'You must provide an address!'
        })
    }

    geocode.geocodeAddress(req.query.address, (error, { latitude, longitude, location } = {}) => {
        if (error) {
            return res.send({ error })
        }

        weather.getWeather(latitude, longitude, (error, forecastData) => {
            if (error) {
                return res.send({ error })
            }

            res.send({
                forecast: forecastData,
                location,
                address: req.query.address
            })
        })
    })
})


app.listen(port, () => {
    console.log("server started on " + port);
});