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server.js
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server.js
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const express = require('express')
const { readFileSync, writeFileSync } = require('fs')
const { execSync, exec } = require('child_process')
const cors = require('cors')
const prompts = require('prompts')
const qrcode = require('qrcode')
let readConfig = () => {
try {
return JSON.parse(readFileSync('./config.json'))
} catch (err) {
if (err.code === 'ENOENT') {
console.log('Did not find config.json - creating one now!')
writeConfig({})
} else {
console.log('There was a error with config.json:')
console.log(err)
process.exit(1)
}
}
return readConfig()
}
let writeConfig = obj => {
let config = {
event: '',
url: '',
}
let saving = Object.assign(config, readConfig(), obj)
writeFileSync('./config.json', JSON.stringify(saving, null, 2))
}
const askEvent = async () => {
let response = await prompts({
type: 'text',
name: 'event',
initial: readConfig().event,
message: 'What is the event name?',
})
if (response.event === readConfig().event) {
console.log('Using previous event name')
} else {
console.log('Updating event name')
writeConfig({
event: response.event,
})
}
}
const askUrl = async () => {
let response = await prompts({
type: 'text',
name: 'url',
initial: readConfig().url,
message: 'What is the URL name?',
})
if (response.url === readConfig().url) {
console.log('Using previous URL')
} else {
console.log('Updating URL')
writeConfig({
url: response.url,
})
console.log('Updating QR code')
qrcode.toFile('./label/qr.png', response.url, {
width: 300,
})
}
}
const main = async () => {
await askEvent()
await askUrl()
let app = express()
app.use(express.static('./'))
app.use(cors())
app.get('/config', (req, res) => {
let config = JSON.parse(readFileSync('./config.json'))
res.send('<!DOCTYPE html>' + ConfigPage.render(config))
})
app.get('/config/save', (req, res) => {
writeFileSync('./config.json', JSON.stringify(req.query, null, 2))
res.redirect('/config')
})
app.get('/test', (req, res) => {
const data = { name: req.query.name }
console.log(data)
res.send(data)
})
app.get('/print', (req, res) => {
console.log('Prepare')
execSync(`node prepare.js "${req.query.name}"`)
console.log('Browser')
try {
exec('node browser.js', {
shell: '/bin/bash',
})
} catch (e) {
console.log(e)
}
setTimeout(() => {
console.log('Convert')
execSync('bash convert.sh')
console.log('Print')
execSync('bash print.sh')
console.log('Done')
res.send('Done')
}, 2000)
})
const PORT = process.env.PORT || 9000
app.listen(PORT, () => {
console.log(`Listening on http://localhost:${PORT}`)
})
}
main()