HaruStar/discord-bot

/*
The HELP command is used to display every command's name and description
to the user, so that he may see what commands are available. The help
command is also filtered by level, so if a user does not have access to
a command, it is not shown to them. If a command name is given with the
help command, its extended help is shown.
*/

const customMessage = "I'm a very basic bot made by BayoDino and Haruyuki and Ergastolator1. I'll become a helper for Cranterns bot ^-^, Ergastolator1 is not a person that made it, BTW :) He only helped to make it, but thanks for including him anyways in the command!";

exports.run = (client, message, args, level) => {
  // If no specific command is called, show all filtered commands.
  if (!args[0]) {
    // Filter all commands by which are available for the user's level, using the <Collection>.filter() method.
    const myCommands = message.guild ? client.commands.filter(cmd => client.levelCache[cmd.conf.permLevel] <= level) : client.commands.filter(cmd => client.levelCache[cmd.conf.permLevel] <= level &&  cmd.conf.guildOnly !== true);

    // Here we have to get the command names only, and we use that array to get the longest name.
    // This make the help commands "aligned" in the output.
    const commandNames = myCommands.keyArray();
    const longest = commandNames.reduce((long, str) => Math.max(long, str.length), 0);

    let currentCategory = "";
    let output = `= Command List =\n\n${customMessage}\n\n[Use ${message.settings.prefix}help <commandname> for details]\n`;
    const sorted = myCommands.array().sort((p, c) => p.help.category > c.help.category ? 1 :  p.help.name > c.help.name && p.help.category === c.help.category ? 1 : -1 );
    sorted.forEach( c => {
      const cat = c.help.category.toProperCase();
      if (currentCategory !== cat) {
        output += `\u200b\n== ${cat} ==\n`;
        currentCategory = cat;
      }
      output += `${message.settings.prefix}${c.help.name}${" ".repeat(longest - c.help.name.length)} :: ${c.help.description}\n`;
    });
    message.channel.send(output, {code: "asciidoc", split: { char: "\u200b" }});
  } else {
    // Show individual command's help.
    let command = args[0];
    if (client.commands.has(command)) {
      command = client.commands.get(command);
      if (level < client.levelCache[command.conf.permLevel]) return;
      message.channel.send(`= ${command.help.name} = \n${command.help.description}\nusage:: ${command.help.usage}\naliases:: ${command.conf.aliases.join(", ")}\n= ${command.help.name} =`, {code:"asciidoc"});
    }
  }
};

exports.conf = {
  enabled: true, // Whether this command is enabled
  guildOnly: false, // If the command can only be run in servers (No PM's)
  aliases: [], // Other ways to call the command
  permLevel: "User" // The minimum permission needed to run the command
};

exports.help = {
  name: "help", // The name of the command used to call it
  category: "System", // The category the command fits in
  description: "Displays all the available commands for your permission level.", // Short description of what the command does
  usage: "help [command]" // An example of how to use the command
};