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feelfreetofeefeelfreetofee
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feat(bot): Twitch Bot v2
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‎bot/css/authorize/alternative.css‎

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body {
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> div.authorize > dialog.token {
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padding: 1.5em;
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border: none;
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border-radius: 2em;
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outline: none;
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text-align: center;
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background-color: #1c1c1c;
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color: white;
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&::backdrop {
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background-color: transparent;
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}
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> form {
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margin: 0;
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display: flex;
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flex-direction: column;
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gap: 1.25em;
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> div.title {
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font-size: 1.5em;
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font-weight: 600;
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}
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> div.error:not(:empty) {
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padding: .5em;
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font-weight: 600;
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background: #e45d4d;
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}
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input {
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padding: .5em 1em;
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border: none;
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&[type=text], &[type=password] {
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color: inherit;
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background-color: transparent;
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}
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&[type=submit] {
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border-radius: 1em;
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color: black;
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background-color: white;
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&:disabled {
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background-color: #d6d6d6;
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}
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}
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}
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}
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}
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}

‎bot/css/authorize/index.css‎

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@import 'alternative.css';
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body > div.authorize {
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height: 100%;
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display: flex;
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flex-direction: column;
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align-items: center;
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justify-content: center;
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&:has(> div.error:not(:empty)) {
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gap: 1em;
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}
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> div.error:not(:empty) {
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padding: .75em 1.25em;
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border-radius: 1em;
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color: white;
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background-color: #e45d4d;
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}
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> a.twitch {
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padding: 1em 1.25em;
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border-radius: 2em;
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text-decoration: none;
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font-weight: 600;
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color: white;
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background-color: #6441a5;
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}
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}

‎bot/css/index.css‎

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@import 'authorize/index.css';
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body {
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margin: 0;
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font-family: sans-serif;
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color: #fff;
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dialog {
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border: none;
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border-radius: 1em;
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outline-color: transparent;
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color: inherit;
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background-color: #272727;
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}
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}

‎bot/index.html‎

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<link rel=stylesheet href=css/index.css>
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<script type=module src=js/index.js defer></script>
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<template id=authorize>
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<div class=authorize>
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<div class=error></div>
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<a class=twitch>Connect with Twitch</a>
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<dialog class=token>
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<form>
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<div class=title>Check your browser!</div>
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<div class=description>Connect your Twitch account in your browser and paste the token here.</div>
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<div class=error></div>
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<div>
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<input type=password placeholder='Paste your token here'>
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<input type=submit value=Connect>
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</div>
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</form>
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</dialog>
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</div>
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</template>

‎bot/js/authorize.js‎

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import {client} from './twitch'
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import * as OAuth2 from '../../modules/twitch/oauth2'
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function alternativeFlow(element) {
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const tokenDialog = element.querySelector('dialog.token')
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element.querySelector('a.twitch').addEventListener('click', event => {
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tokenDialog.showModal()
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window.invokeNative('openUrl',
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OAuth2.authorize(
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`${location.origin}${location.pathname}`, /** @todo external website */
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client.client_id,
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client.scopes
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)
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)
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})
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const errorElement = tokenDialog.querySelector('form div.error')
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tokenDialog.querySelector('form').addEventListener('submit', event => {
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event.preventDefault()
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const {target: [input, submit]} = event
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const {value: token} = input
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if (
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!token
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|| token === 'Bearer '
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|| !token.startsWith('Bearer ')
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) return errorElement.innerText = 'Invalid authorization token'
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submit.disabled = true
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submit.value = 'Validating...'
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OAuth2.validate(token).then(response => {
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submit.value = 'Connect'
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input.addEventListener('input', () => submit.disabled = false, {once: true})
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if (response.status)
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return errorElement.innerText = `${response.status} - ${response.message}`
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localStorage.setItem('tts_twitch_token', token)
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location.reload()
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})
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})
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}
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function authorizationFlow(error) {
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const element = document.importNode(
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document.head.querySelector('template#authorize').content,
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true
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)
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if (error)
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element.querySelector('div.error').innerText = error
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if (window.invokeNative)
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alternativeFlow(client, element)
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else
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element.querySelector('a.twitch').href =
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OAuth2.authorize(
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`${location.origin}${location.pathname}`,
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client.client_id,
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client.scopes
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)
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document.body.replaceChildren(element)
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}
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export default function() {
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const response = OAuth2.response()
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if (response && !client.token)
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localStorage.setItem('tts_twitch_token', client.token = response.token)
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if (client.token)
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OAuth2.validate(client.token).then(response => {
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const error = response.status
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? `${response.status} - ${response.message}`
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: !OAuth2.compareScopes(client.scopes, response.scopes)
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? 'Scopes changed, please reauthorize.'
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: client.connect(client.user_id = response.user_id)
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if (!error) return
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localStorage.removeItem('tts_twitch_token')
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authorizationFlow(error)
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})
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else
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authorizationFlow(OAuth2.error())
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}

‎bot/js/commands/help/index.js‎

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export default function(client, {message_id: reply_parent_message_id}) {
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return client.sendChatMessage({
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message: `Commands: ${Object.keys(this).join(', ')}`,
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reply_parent_message_id
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})
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}

‎bot/js/commands/index.js‎

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import {default as help} from './help'
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import {default as ping} from './ping'
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import {play, pause, skip} from './music'
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export const prefix = '!'
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export const commands = {
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help,
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ping,
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play,
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pause,
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skip
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}
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/**
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* @param {string} text
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*/
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export function executeCommand(client, event) {
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const [command, ...args] = event.message.text.slice(1).split(' ')
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return commands[command]?.(client, event, ...args)
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}

‎bot/js/commands/music/index.js‎

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export const queue = []
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export let playing = false
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function run() {
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if (!queue.length) return playing = false
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const [audio, resolve, reject] = queue.shift()
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audio.addEventListener('error', run)
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audio.addEventListener('ended', run)
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audio.play().then(resolve).catch(reject)
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playing = audio
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}
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function push(url) {
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const {promise, resolve, reject} = Promise.withResolvers()
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queue.push([new Audio(url), resolve, reject])
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return promise
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}
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export function play(client, {message_id: reply_parent_message_id}, url) {
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if (playing?.paused) {
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client.sendChatMessage({
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message: 'Resuming song...',
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reply_parent_message_id
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})
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playing.play()
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}
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if (!url)
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return client.sendChatMessage({
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message: '!play <url>',
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reply_parent_message_id
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})
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push(url)
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.then(() => client.sendChatMessage({
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message: 'Now playing...',
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reply_parent_message_id
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}))
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.catch(error => client.sendChatMessage({
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message: error.toString(),
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reply_parent_message_id
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}))
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if (!playing)
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run()
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}
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export function pause(client, {message_id: reply_parent_message_id}, argument) {
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if (!playing)
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return client.sendChatMessage({
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message: 'Nothing to pause!',
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reply_parent_message_id
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})
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playing.pause()
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client.sendChatMessage({
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message: 'Pausing...',
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reply_parent_message_id
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})
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}
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export function skip(client, {message_id: reply_parent_message_id}, argument) {
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if (!playing)
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return client.sendChatMessage({
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message: 'Nothing to skip!',
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reply_parent_message_id
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})
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const all = argument === 'all'
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const count = all ? queue.length + 1 : 1
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client.sendChatMessage({
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message: `Skipping ${count} song${count === 1 ? '' : 's'}...`,
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reply_parent_message_id
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})
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playing.src = ''
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if (all) queue.length = 0
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run()
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}

‎bot/js/commands/ping/index.js‎

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export default function(client, {message_id: reply_parent_message_id}) {
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return client.sendChatMessage({
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message: 'pong!',
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reply_parent_message_id
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})
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}

‎bot/js/index.js‎

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import './message'
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import authorize from './authorize'
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authorize()

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