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app.js
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app.js
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const path = require("path");
const express = require('express');
const fileupload = require("express-fileupload")
const {renderNavs} = require('./util')
const navs = require('./data/navs')
const RequiredData = require('./data/Required-Data')
const CrashRoute = require("./routes/crash-prediction-models")
const {figure} = require("./formulas");
const fs = require("fs");
const app = express();
app.set('view engine', 'pug');
app.use(fileupload());
app.use(express.static('public'));
app.use(express.static('excels'));
app.use(express.urlencoded({ extended: false }))
app.post("/figure", async (req, res) => {
try {
// delete all file
fs.rmdirSync(path.resolve(__dirname, './excels'), {
recursive: true
});
fs.mkdirSync(path.resolve(__dirname, './excels'));
let path_split = req.headers.referer.split('/').slice(3);
let dataFile,
figureModel,
savePath,
crashes_state;
if (!req.files || Object.keys(req.files).length === 0) {
return res.status(400).send('No files were uploaded.');
}
figureModel = req.body.model || 'special';
let type = req.body.type;
crashes_state = req.body.crashes_state;
crashes_state = Number(crashes_state);
dataFile = req.files.dataFile;
savePath = path.resolve(__dirname, `./excels/${Date.now() + Math.ceil(Math.random() * 10000)}.csv`);
dataFile.mv(savePath, function (err) {
if (err) {
return res.status(500).send(err.message);
}
figure(savePath, figureModel, crashes_state, path_split, type).then(filename => {
const fname = path_split.join('-') + '-result' + '.csv'
res.setHeader('Content-Disposition', 'attachment; filename=' + fname)
res.sendFile(path.resolve(__dirname, `./excels/${filename}`), );
})
})
} catch (err) {
res.status(500).send(err.message);
}
});
app.use(function (req, res, next) {
let pathWay = '';
let navsHTML = '';
let urlStr = '';
let paths = req.path.split('/');
let url = req.originalUrl;
urlStr = url.split('/').filter(item => item.length > 0).map(item => decodeURIComponent(item)).join('/');
paths = paths.filter(p => p.length > 0).map(p => decodeURIComponent(p));
pathWay = paths.join(' > ');
navsHTML = renderNavs(navs, paths);
res.locals.navsHTML = navsHTML;
res.locals.pathWay = pathWay;
res.locals.urlStr = urlStr;
next();
})
app.get('/', function (req, res) {
res.redirect('/Home');
});
app.get('/Home', function (req, res) {
res.render('home/home.pug');
});
app.get('/About', function (req, res) {
res.render('about/about.pug');
})
app.get(`/${encodeURIComponent('Required Data')}`, function (req, res) {
res.render('required-data/required-data.pug', {requiredData: RequiredData})
});
app.use(`/${encodeURIComponent('Crash Prediction Models')}`, CrashRoute);
app.get(`/${encodeURIComponent('Contact Us')}`, function (req, res) {
res.render('contact-us/contact-us.pug');
})
// app.get(`/${encodeURIComponent('Crash Prediction Models')}*`, function (req, res) {
// let navsHTML = '';
// let paths = req.path.split('/');
//
// paths = paths.filter(p => p.length > 0).map(p => decodeURIComponent(p));
//
// navsHTML = renderNavs(navs, paths);
//
// res.render('home/home.pug', {navsHTML: navsHTML});
// })
app.use(function (req, res) {
res.status(404).send("Not Found");
})
module.exports = app;