51 lines
1.4 KiB
JavaScript
51 lines
1.4 KiB
JavaScript
const path = require('path');
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const { promisify } = require('util');
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const glob = promisify(require('glob'));
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const Command = require('./Command.js');
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module.exports = class Util {
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constructor(client) {
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this.client = client;
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}
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isClass(input) {
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return typeof input === 'function' &&
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typeof input.prototype === 'object' &&
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input.toString().substring(0, 5) === 'class';
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}
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get directory() {
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return `${path.dirname(require.main.filename)}${path.sep}`;
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}
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async loadCommands() {
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return glob(`${this.directory}commands/**/*.js`).then(commands => {
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for (const commandFile of commands) {
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delete require.cache[commandFile];
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const { name } = path.parse(commandFile);
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const File = require(commandFile);
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if (!this.isClass(File)) throw new TypeError(`Command ${name} doesn't export a class.`);
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const command = new File(this.client, name.toLowerCase());
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if (!(command instanceof Command)) throw new TypeError(`Command ${name} doesn't belong in commands.`);
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this.client.commands.set(command.name, command);
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if (command.aliases.length) {
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for (const alias of command.aliases) {
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this.client.aliases.set(alias, command.name);
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}
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}
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}
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});
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}
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trimArray(arr, maxLen = 10) {
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if (arr.length > maxLen) {
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const len = arr.length - maxLen;
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arr = arr.slice(0, maxLen);
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arr.push(`${len} more...`);
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}
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return arr;
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}
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};
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