import { Client, Events, REST, Routes } from "discord.js";
import { getAllCommands, getCommand } from "../lib/commandRegistry";
import { GUILD_ID } from "../config";

export default async function (client: Client) {
    const token = process.env.DISCORD_TOKEN!;
    const clientId = client.user!.id; // use the ready client's ID

    const rest = new REST().setToken(token);

    const commandData = getAllCommands().map((cmd) => cmd.data.toJSON());

    await rest.put(Routes.applicationGuildCommands(clientId, GUILD_ID), {
        body: commandData,
    });

    console.log(`Registered ${commandData.length} slash command(s).`);

    client.on(Events.InteractionCreate, async (interaction) => {
        if (!interaction.isChatInputCommand()) return;

        const command = getCommand(interaction.commandName);
        if (!command) return;

        try {
            await command.execute(interaction);
        } catch (err) {
            console.error(err);
            if (interaction.replied || interaction.deferred) {
                await interaction.followUp({
                    content: "An error occurred.",
                    ephemeral: true,
                });
            } else {
                await interaction.reply({
                    content: "An error occurred.",
                    ephemeral: true,
                });
            }
        }
    });
}