mv

src/class/Util.ts

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+/* eslint-disable no-param-reassign */
+import { promisify, isArray } from 'util';
+import childProcess from 'child_process';
+import nodemailer from 'nodemailer';
+import { Message, PrivateChannel } from 'eris';
+import { outputFile } from 'fs-extra';
+import { Client } from '..';
+import { Command, RichEmbed } from '.';
+
+export default class Util {
+  public client: Client;
+
+  public transport: nodemailer.Transporter;
+
+  constructor(client: Client) {
+    this.client = client;
+    this.transport = nodemailer.createTransport({
+      host: 'staff.libraryofcode.org',
+      auth: { user: 'support', pass: this.client.config.emailPass },
+    });
+  }
+
+  public async exec(command: string): Promise<string> {
+    const ex = promisify(childProcess.exec);
+    let result: string;
+    // eslint-disable-next-line no-useless-catch
+    try {
+      const res = await ex(command);
+      result = res.stderr || res.stdout;
+    } catch (err) {
+      throw err;
+    }
+    return result;
+  }
+
+  public resolveCommand(command: string): Command {
+    if (this.client.commands.has(command)) return this.client.commands.get(command);
+    for (const cmd of this.client.commands.values()) {
+      if (!cmd.aliases) continue;// eslint-disable-line no-continue
+      for (const alias of cmd.aliases) {
+        if (command === alias.toLowerCase()) return cmd;
+      }
+    }
+    return undefined;
+  }
+
+  public async handleError(error: Error, message?: Message, command?: Command): Promise<void> {
+    const info = { content: `\`\`\`js\n${error.stack}\n\`\`\``, embed: null };
+    if (message) {
+      const embed = new RichEmbed();
+      embed.setColor('FF0000');
+      embed.setAuthor(`Error caused by ${message.author.username}#${message.author.discriminator}`, message.author.avatarURL);
+      embed.setTitle('Message content');
+      embed.setDescription(message.content);
+      embed.addField('User', `${message.author.mention} (\`${message.author.id}\`)`, true);
+      embed.addField('Channel', message.channel.mention, true);
+      let guild: string;
+      if (message.channel instanceof PrivateChannel) guild = '@me';
+      else guild = message.channel.guild.id;
+      embed.addField('Message link', `[Click here](https://discordapp.com/channels/${guild}/${message.channel.id}/${message.id})`, true);
+      embed.setTimestamp(new Date(message.timestamp));
+      info.embed = embed;
+    }
+    await this.client.createMessage('595788220764127272', info);
+    if (message) this.client.createMessage('595788220764127272', 'Message content for above error');
+    if (command) this.client.commands.get(command.name).enabled = false;
+    if (message) message.channel.createMessage(`***${this.client.stores.emojis.error} An unexpected error has occured - please contact a member of the Engineering Team.${command ? ' This command has been disabled.' : ''}***`);
+  }
+
+  public splitFields(fields: {name: string, value: string, inline?: boolean}[]): {name: string, value: string, inline?: boolean}[][] {
+    let index = 0;
+    const array: {name: string, value: string, inline?: boolean}[][] = [[]];
+    while (fields.length) {
+      if (array[index].length >= 25) { index += 1; array[index] = []; }
+      array[index].push(fields[0]); fields.shift();
+    }
+    return array;
+  }
+
+  public splitString(string: string, length: number): string[] {
+    if (!string) return [];
+    if (Array.isArray(string)) string = string.join('\n');
+    if (string.length <= length) return [string];
+    const arrayString: string[] = [];
+    let str: string = '';
+    let pos: number;
+    while (string.length > 0) {
+      pos = string.length > length ? string.lastIndexOf('\n', length) : outputFile.length;
+      if (pos > length) pos = length;
+      str = string.substr(0, pos);
+      string = string.substr(pos);
+      arrayString.push(str);
+    }
+    return arrayString;
+  }
+}