const { Client, Events, GatewayIntentBits } = require("discord.js");
const { token, id } = require("./config.json");
const { spawn } = require("child_process");

const client = new Client({
    intents: [
        GatewayIntentBits.Guilds,
        GatewayIntentBits.GuildMessages,
        GatewayIntentBits.MessageContent,
    ],
});

client.once(Events.ClientReady, c => {
    console.log(`okay cool, ${c.user.tag}`);
    console.log(
        `Invite link: https://discord.com/oauth2/authorize?client_id=${id}&permissions=3072&scope=bot`
    );
});

client.login(token);

client.on("messageCreate", message => {
    if (
        message.author.id == id ||
        message.author.id == "1117299835855450163" ||
        message.author.id == "1115433649010114670" ||
        !message.mentions.has(id)
    )
        return;
    try {
        let [so, se] = [false, false];

        function done() {
            if (!so || !se) return;

            rules.length > 0 &&
                message.reply(mk_message(rules, "`stderr:`", "ansi"));

            message.reply(
                out.length > 0
                    ? mk_message(out, "`stdout:`")
                    : "no output. weird."
            );
        }

        let process = spawn("./target/release/slimp", [message.content], {
            stdio: "pipe",
        });
        let rules = "";
        process.stderr.on("data", data => (rules += data.toString()));
        process.stderr.on("close", () => ((se = true), done()));

        let out = "";
        process.stdout.on("data", data => (out += data.toString()));
        process.stdout.on("close", () => ((so = true), done()));

        let timeout = 1 * 60 * 1000;
        setTimeout(
            () => (
                (out += `took more than ${timeout}ms so killed. sorry`),
                process.kill()
            ),
            timeout
        );
    } catch (e) {
        console.error(e);
        message.reply(":(");
    }
});

function mk_message(str, stream = "", lang = "lisp") {
    return `${stream}\n` + "```" + lang + "\n" + str.slice(0, 1975) + "```";
}