Artivain/artibot

import { ChatInputCommandInteraction, EmbedBuilder } from "discord.js";
import Artibot from "../../index.js";
import { SlashCommand } from "../../modules.js";

/** Help slash command */
export default async function execute(interaction: ChatInputCommandInteraction, { config, localizer, createEmbed, modules }: Artibot): Promise<void> {
    let name: string | null = interaction.options.getString("command");

    const helpEmbed: EmbedBuilder = createEmbed();

    /** List of all slash commands */
    const commands: SlashCommand[] = [];

    for (const [, module] of modules) {
        for (const part of module.parts) {
            if (part instanceof SlashCommand) commands.push(part);
        }
    }

    if (name) {
        name = name.toLowerCase();
        // If a single command has been asked for, send only this command's help.
        helpEmbed.setTitle(localizer.__("Help on command `[[0]]`", { placeholders: [name] }));
        const command: SlashCommand | undefined = commands.find(command => command.data.name == name);

        if (command) {
            if (command.data.description) helpEmbed.setDescription(command.data.description + "\n\n**" + localizer._("Parameters:") + "**");
        } else {
            helpEmbed
                .setDescription(localizer.__("There is no slash command with the name `[[0]]`.", { placeholders: [name] }))
                .setColor("Yellow");
        }
    } else {
        /** List of the names of all slash commands */
        const names: string[] = [];

        for (const command of commands) {
            if (command.data.name) names.push(command.data.name);
        }

        // Give a list of all the commands
        helpEmbed
            .setTitle(localizer._("List of all slash commands"))
            .setDescription(
                "`" + names.join("`, `") + "`\n\n" + localizer._("You can also have a list of classic commands with") + " `" + config.prefix + "help`."
            );
    }

    // Reply to the interaction
    await interaction.reply({
        embeds: [helpEmbed]
    });
}