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index.js
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index.js
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const express = require('express');
const exphbs = require('express-handlebars');
const fs = require('fs');
const { basename } = require('path');
const multer = require('multer');
const upload = multer();
let equipos = JSON.parse(fs.readFileSync('data\\equipos.json', 'utf8'));
const app = express();
const handlebars = exphbs.create();
app.engine('handlebars', handlebars.engine);
app.set('view engine', 'handlebars');
//middlewares
app.use(express.json());
app.use(upload.array()); //middleware for multipart/form-data
app.use(express.static('public'));
app.use(express.static('assets'))
app.use(express.static('data'))
app.use((req,res, next) => {
console.log(`[${new Date()}] - Llamada a ${req.method} ${req.url}`);
next();
})
app.get('/', (req, res) => {
res.render('football_table', {
layout: 'base',
data:{
equipos
}
});
});
app.get('/add', (req, res) => {
res.render('addForm', {
layout: 'addBase'
});
});
app.get('/update/:id', (req,res) =>{
const teamId = parseInt(req.params.id);
console.log(teamId);
res.render('updateForm', {
layout: 'addBase',
data:{
name: findTeam(teamId, equipos).name,
country: findTeam(teamId, equipos).area.name,
crestURL: findTeam(teamId, equipos).crestUrl,
teamId,
}
});
})
app.post('/updateTeam', (req, res) => {
const reqTeam = JSON.parse(JSON.stringify(req.body)); // workaround to get rid of [Object: null prototype]
console.log(reqTeam)
if(validForm(reqTeam.name, reqTeam.country, reqTeam.crestURL, reqTeam.teamId)){
const teamIndex = equipos.indexOf(findTeam(parseInt(reqTeam.originalTeamId), equipos));
console.log("found team to update")
console.log(teamIndex)
equipos[teamIndex].name = reqTeam.name;
equipos[teamIndex].area.name = reqTeam.country;
equipos[teamIndex].crestUrl = reqTeam.crestURL;
equipos[teamIndex].id = parseInt(reqTeam.teamId);
console.log(equipos);
fs.writeFileSync('data\\equipos.json', JSON.stringify(equipos) );
res.redirect('/');
}
})
app.post('/sendTeam', (req, res) => {
const reqTeam = JSON.parse(JSON.stringify(req.body)); // workaround to get rid of [Object: null prototype]
if(validForm(reqTeam.name, reqTeam.country, reqTeam.crestURL, reqTeam.teamId)){
equipos.push( newTeam(reqTeam.name,
reqTeam.crestURL,
reqTeam.country,
parseInt(reqTeam.teamId)) );
fs.writeFileSync('data\\equipos.json', JSON.stringify(equipos) );
res.redirect('/');
}
else{
console.error('Invalid form');
let validationClassName='';
let validationClassCountry ='';
let validationClassURL='';
let validationClassId='';
if(reqTeam.name === ''){
validationClassName = 'is-invalid'
}
if(reqTeam.country === ''){
validationClassCountry = 'is-invalid'
}
if(reqTeam.crestURL === ''){
validationClassURL = 'is-invalid'
}
if(reqTeam.teamId === ''){
validationClassId = 'is-invalid'
}
res.render('addForm', {
layout: 'addBase',
data:{
name:reqTeam.name,
country: reqTeam.country,
crestURL: reqTeam.crestURL,
teamId: reqTeam.teamId,
validationClassName,
validationClassCountry,
validationClassURL,
validationClassId,
}
})
}
});
app.post('/deleteTeam/:id', (req,res) => {
const idTeam = parseInt(req.params.id)
if( findTeam(idTeam,equipos) !== undefined){
equipos = deleteTeam(idTeam,equipos);
fs.writeFileSync('data\\equipos.json', JSON.stringify(equipos) );
res.redirect('/');
}
else{
console.error("Team with such id doesn't exist");
res.status(404).end();
}
})
app.get('/delete/:id', (req, res) => {
res.render('deleteForm', {
layout: 'addBase',
data: {
teamName: findTeam(parseInt(req.params.id), equipos).name,
id: req.params.id
}
});
});
function newTeam(teamName,teamCrest,teamCountry,teamId){
return {name: teamName,
area: {name: teamCountry},
crestUrl: teamCrest,
id: teamId
}
}
function findTeam(id,equipos){
return equipos.find(equipo => equipo.id === id);
}
function deleteTeam(id,equipos){ //returns an updated equipos object
const teamToDelete = findTeam(id,equipos);
return equipos.filter(equipo => equipo !== teamToDelete);
}
function validForm(name, country, crestURL, teamId){
return name !=='' &&
country !== '' &&
crestURL !== '' &&
teamId !== '';
}
const PORT = 8080;
app.listen(PORT);
console.log(`Listening on port ${PORT}`);