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import {Client, Message, Collection} from 'discord.js';
import {inject, injectable} from 'inversify';
import {TYPES} from './types';
import {Settings, Shortcut} from './models';
import container from './inversify.config';
import Command from './commands';
import debug from './utils/debug';
import NaturalLanguage from './services/natural-language-commands';
import handleGuildCreate from './events/guild-create';
import handleVoiceStateUpdate from './events/voice-state-update';
import errorMsg from './utils/error-msg';
import {isUserInVoice} from './utils/channels';
@injectable()
export default class {
private readonly client: Client;
private readonly naturalLanguage: NaturalLanguage;
private readonly token: string;
private readonly clientId: string;
private readonly commands!: Collection<string, Command>;
constructor(@inject(TYPES.Client) client: Client, @inject(TYPES.Services.NaturalLanguage) naturalLanguage: NaturalLanguage, @inject(TYPES.Config.DISCORD_TOKEN) token: string, @inject(TYPES.Config.DISCORD_CLIENT_ID) clientId: string) {
this.client = client;
this.naturalLanguage = naturalLanguage;
this.token = token;
this.clientId = clientId;
this.commands = new Collection();
}
public async listen(): Promise<string> {
// Load in commands
container.getAll<Command>(TYPES.Command).forEach(command => {
const commandNames = [command.name, ...command.aliases];
commandNames.forEach(commandName => this.commands.set(commandName, command));
});
this.client.on('message', async (msg: Message) => {
// Get guild settings
if (!msg.guild) {
return;
}
const settings = await Settings.findByPk(msg.guild.id);
if (!settings) {
// Got into a bad state, send owner welcome message
return this.client.emit('guildCreate', msg.guild);
}
if (await this.naturalLanguage.execute(msg)) {
// Natural language command handled message
return;
}
const {prefix, channel} = settings;
if (!msg.content.startsWith(prefix) || msg.author.bot || msg.channel.id !== channel) {
return;
}
let args = msg.content.slice(prefix.length).split(/ +/);
const command = args.shift()!.toLowerCase();
// Get possible shortcut
const shortcut = await Shortcut.findOne({where: {guildId: msg.guild.id, shortcut: command}});
let handler: Command;
if (this.commands.has(command)) {
handler = this.commands.get(command) as Command;
} else if (shortcut) {
const possibleHandler = this.commands.get(shortcut.command.split(' ')[0]);
if (possibleHandler) {
handler = possibleHandler;
args = shortcut.command.split(/ +/).slice(1);
} else {
return;
}
} else {
return;
}
try {
if (handler.requiresVC && !isUserInVoice(msg.guild, msg.author)) {
await msg.channel.send(errorMsg('gotta be in a voice channel'));
return;
}
await handler.execute(msg, args);
} catch (error) {
debug(error);
await msg.channel.send(errorMsg((error as Error).message.toLowerCase()));
}
});
this.client.on('ready', async () => {
console.log(`Ready! Invite the bot with https://discordapp.com/oauth2/authorize?client_id=${this.clientId}&scope=bot`);
});
this.client.on('error', console.error);
this.client.on('debug', debug);
// Register event handlers
this.client.on('guildCreate', handleGuildCreate);
this.client.on('voiceStateUpdate', handleVoiceStateUpdate);
return this.client.login(this.token);
}
}
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