discord-home-cinema/main.js

import { exec } from 'node:child_process';

import { overrideConsole } from 'nodejs-better-console';
import Eris from 'eris';
import { Command } from 'commander';
import { parse } from 'shell-quote';

import {
    botToken,
    botWhitelist,
    adbIp,
    adbPort
} from './config.js';

overrideConsole();

const
    eris = new Eris(
        botToken,
        { intents: ['directMessages'] }
    ),
    adb = command => new Promise((resolve, reject) => exec(
        `adb -s ${adbIp}:${adbPort} shell ${command}`,
        (
            error,
            stdout,
            stderr
        ) => {
            if(error || stderr)
                reject(error || stderr);
            else
                resolve(stdout);
        }
    )),
    handleCommand = async command => {
        const program = new Command('');
        let response;
        program.exitOverride();
        program.configureOutput({
            writeOut: output => response = { output, isRaw: true },
            writeErr: output => response = { output, isRaw: true }
        });
        program
            .command('shell')
            .description('Execute arbitrary shell command')
            .argument('<command>', 'Arbitrary shell command')
            .action(async command => {
                response = {
                    output: await adb(command),
                    isRaw: true
                }
            });
        program
            .command('p')
            .description('Play/pause media')
            .action(() => adb('input keyevent 85'));
        program
            .command('play')
            .description('Play media')
            .action(() => adb('input keyevent 126'));
        program
            .command('pause')
            .description('Pause media')
            .action(() => adb('input keyevent 127'));
        program
            .command('spotify')
            .description('Launch Spotify')
            .action(() => adb('monkey -p com.spotify.music 1'));
        program
            .command('mpv')
            .description('Launch MPV')
            .argument('<url>', 'Media URL')
            .action(url => adb(`am start -a android.intent.action.VIEW -d ${url} -t video/any is.xyz.mpv`));
        try {
            await program.parseAsync(
                parse(command),
                { from: 'user' }
            );
        }
        catch(error){
            if(!error.code.startsWith?.('commander.'))
                throw error;
        }
        if(response?.output)
            response.output = response.output.replace(/\r/g, '').trim();
        return response;
    };

eris.on(
    'error',
    error => console.error(error)
);

eris.on(
    'messageCreate',
    async message => {
        const
            {
                guildID,
                author: { id: authorID },
                channel: { id: channelID },
                id: messageID,
                content
            } = message,
            reply = async (content, isCodeBlock) => {
                const lines = content.split('\n');
                let chunk = isCodeBlock ? '```\n' : '';
                for(let lineIndex = 0; lineIndex < lines.length; lineIndex++){
                    const
                        line = lines[lineIndex] + '\n',
                        canAddLine = chunk.length + line.length + (isCodeBlock ? 3 : 0) <= 2000;
                    if(canAddLine)
                        chunk += line;
                    if(!canAddLine || lineIndex === lines.length - 1){
                        if(isCodeBlock)
                            chunk += '```';
                        await eris.createMessage(
                            channelID,
                            {
                                content: chunk,
                                messageReference: { messageID }
                            }
                        );
                        chunk = `\`\`\`\n${line}`;
                    }
                }
            };
        if(message.author.bot) return;
        if(
            guildID
            ||
            !botWhitelist.includes(authorID)
        ) return message.addReaction('❌');
        await message.addReaction('⏳');
        try {
            const {
                output,
                isRaw
            } = await handleCommand(content) || {};
            if(output)
                await reply(output, isRaw);
            await message.addReaction('✅');
        }
        catch(error){
            console.error(error);
            await message.addReaction('❌');
        }
    }
);

(async () => {
    await Promise.all([
        eris.connect(),
        new Promise(resolve => eris.once('ready', resolve))
    ]);
    console.log('Ready');
})().catch(error => console.error(error));