/
index.js
74 lines (66 loc) · 2.56 KB
/
index.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
const apiKey = process.env.API_KEY || "555c576824c5ed5734d13427e008d819";
var port = process.env.PORT || 80;
const express = require("express");
const request = require("request");
const app = express();
const zipcodes = require('zipcodes');
const fs = require('fs');
const mustache = require("mustache");
const predictor = require('./scripts/predictor.js');
const favicon = require("serve-favicon");
const path = require('path');
app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
/* serves main page */
app.get("/", function (req, res) {
res.sendFile(__dirname + '/index.html');
});
app.get("/result/:postalCode/:date", function (req, res) {
const lookup = zipcodes.lookup(req.params.postalCode.toUpperCase());
if (!lookup) {
console.log(`User sent invalid postal code: ${req.params.postalCode.toUpperCase()}`);
res.sendFile(__dirname + '/result/404.html');
return;
}
request(`http://api.openweathermap.org/data/2.5/forecast?lat=${lookup.latitude}&lon=${lookup.longitude}&units=metric&APPID=${apiKey}`, function (error, response, body) {
if (error) {
res.send(error);
res.sendStatus(response.statusCode);
return;
}
const allHoursInDay = [];
JSON.parse(body).list.forEach(val => {
if (val.dt_txt.includes(req.params.date)) {
allHoursInDay.push(val);
}
});
if (allHoursInDay.length > 0) {
let minTemp = Number.MAX_SAFE_INTEGER;
let maxTemp = -Number.MAX_SAFE_INTEGER;
let meanTemp = 0;
let rainFall = 0;
let snowFall = 0;
allHoursInDay.forEach(hour => {
minTemp = Math.min(minTemp, hour.main.temp_min);
maxTemp = Math.max(maxTemp, hour.main.temp_max);
meanTemp += hour.main.temp;
if (hour.rain) {
rainFall += hour.rain['3h'] || 0;
}
if (hour.snow) {
rainFall += hour.snow['3h'] || 0;
}
})
if (meanTemp !== 0) {
meanTemp /= allHoursInDay.length;
}
b = predictor.predict(maxTemp, meanTemp, minTemp, rainFall, snowFall)
res.send(mustache.render(fs.readFileSync("./result/index.html").toString(), { data: Math.round(b * 10000) / 100 }));
} else {
res.sendStatus(404);
}
});
})
app.use(express.static(__dirname + '/public'));
app.listen(port, function () {
console.log("Listening on " + port);
});