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main.js
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main.js
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import axios from 'axios'
import Loader from './loader'
import Client from './client'
import Recorder from './recorder'
import listener from './listener'
import { onkeydowndocument, onkeydowninput } from './onkeydown'
const config = {
app: 'webapp',
server_host: import.meta.env.VITE_LEON_HOST,
server_port: import.meta.env.VITE_LEON_PORT,
min_decibels: -40, // Noise detection sensitivity
max_blank_time: 1_000 // Maximum time to consider a blank (ms)
}
const serverUrl =
import.meta.env.VITE_LEON_NODE_ENV === 'production'
? ''
: `${config.server_host}:${config.server_port}`
document.addEventListener('DOMContentLoaded', async () => {
const loader = new Loader()
loader.start()
try {
const response = await axios.get(`${serverUrl}/api/v1/info`)
const input = document.querySelector('#utterance')
const mic = document.querySelector('#mic-button')
const v = document.querySelector('#version small')
const client = new Client(config.app, serverUrl, input, response.data)
let rec = {}
let chunks = []
v.innerHTML += client.info.version
client.init(loader)
if (navigator.mediaDevices && navigator.mediaDevices.getUserMedia) {
navigator.mediaDevices
.getUserMedia({ audio: true })
.then((stream) => {
if (MediaRecorder) {
rec = new Recorder(stream, mic, client.info)
client.recorder = rec
rec.ondataavailable((e) => {
chunks.push(e.data)
})
rec.onstart(() => {
/* */
})
rec.onstop(() => {
const blob = new Blob(chunks)
chunks = []
rec.enabled = false
// Ensure there are some data
if (blob.size >= 1_000) {
client.socket.emit('recognize', blob)
}
})
listener.listening(
stream,
config.min_decibels,
config.max_blank_time,
() => {
// Noise detected
rec.noiseDetected = true
},
() => {
// Noise ended
rec.noiseDetected = false
if (rec.enabled && !rec.hotwordTriggered) {
rec.stop()
rec.enabled = false
rec.hotwordTriggered = false
rec.countSilenceAfterTalk = 0
}
}
)
client.socket.on('enable-record', () => {
rec.hotwordTriggered = true
rec.start()
setTimeout(() => {
rec.hotwordTriggered = false
}, config.max_blank_time)
rec.enabled = true
})
} else {
console.error('MediaRecorder is not supported on your browser.')
}
})
.catch((err) => {
console.error(
'MediaDevices.getUserMedia() threw the following error:',
err
)
})
} else {
console.error(
'MediaDevices.getUserMedia() is not supported on your browser.'
)
}
document.addEventListener('keydown', (e) => {
onkeydowndocument(e, () => {
if (rec.enabled === false) {
input.value = ''
rec.start()
rec.enabled = true
} else {
rec.stop()
rec.enabled = false
}
})
})
input.addEventListener('keydown', (e) => {
onkeydowninput(e, client)
})
mic.addEventListener('click', (e) => {
e.preventDefault()
if (rec.enabled === false) {
rec.start()
rec.enabled = true
} else {
rec.stop()
rec.enabled = false
}
})
} catch (e) {
alert(`Error: ${e.message}; ${JSON.stringify(e.response?.data)}`)
console.error(e)
}
})