cardboardbox/events/message.js
2019-11-26 16:22:24 -05:00

70 lines
3.3 KiB
JavaScript

// The MESSAGE event runs anytime a message is received
// Note that due to the binding of client to every event, every event
// goes `client, other, args` when this function is run.
module.exports = async (client, message) => {
// It's good practice to ignore other bots. This also makes your bot ignore itself
// and not get into a spam loop (we call that "botception").
if (message.author.bot) return;
// Grab the settings for this server from Enmap.
// If there is no guild, get default conf (DMs)
const settings = message.settings = client.getSettings(message.guild);
// Checks if the bot was mentioned, with no message after it, returns the prefix.
const prefixMention = new RegExp(`^<@!?${client.user.id}>( |)$`);
if (message.content.match(prefixMention)) {
return message.reply(`My prefix on this guild is \`${settings.prefix}\``);
}
// Also good practice to ignore any message that does not start with our prefix,
// which is set in the configuration file.
if (message.content.indexOf(settings.prefix) !== 0) return;
// Here we separate our "command" name, and our "arguments" for the command.
// e.g. if we have the message "+say Is this the real life?" , we'll get the following:
// command = say
// args = ["Is", "this", "the", "real", "life?"]
const args = message.content.slice(settings.prefix.length).trim().split(/ +/g);
const command = args.shift().toLowerCase();
// If the member on a guild is invisible or not cached, fetch them.
if (message.guild && !message.member) await message.guild.fetchMember(message.author);
// Get the user or member's permission level from the elevation
const level = client.permlevel(message);
// Check whether the command, or alias, exist in the collections defined
// in app.js.
const cmd = client.commands.get(command) || client.commands.get(client.aliases.get(command));
// using this const varName = thing OR otherthign; is a pretty efficient
// and clean way to grab one of 2 values!
if (!cmd) return;
// Some commands may not be useable in DMs. This check prevents those commands from running
// and return a friendly error message.
if (cmd && !message.guild && cmd.conf.guildOnly)
return message.channel.send("This command is unavailable via private message. Please run this command in a guild.");
if (level < client.levelCache[cmd.conf.permLevel]) {
if (settings.systemNotice === "true") {
return message.channel.send(`You do not have permission to use this command.
Your permission level is ${level} (${client.config.permLevels.find(l => l.level === level).name})
This command requires level ${client.levelCache[cmd.conf.permLevel]} (${cmd.conf.permLevel})`);
} else {
return;
}
}
// To simplify message arguments, the author's level is now put on level (not member so it is supported in DMs)
// The "level" command module argument will be deprecated in the future.
message.author.permLevel = level;
message.flags = [];
while (args[0] && args[0][0] === "-") {
message.flags.push(args.shift().slice(1));
}
// If the command exists, **AND** the user has permission, run it.
client.logger.cmd(`[CMD] ${client.config.permLevels.find(l => l.level === level).name} ${message.author.username} (${message.author.id}) ran command ${cmd.help.name}`);
cmd.run(client, message, args, level);
};