#!/usr/bin/env -S deno run -A

import { parseArgs } from "jsr:@std/cli/parse-args";
import {
    args,
    exit,
    fetchFileWithCache,
    readFileToString,
} from "https://global.hatter.ink/script/get/@62/deno-commons-mod.ts";

const flags = parseArgs(args(), {
    boolean: ["help"],
    string: ["id"],
});

function printHelp() {
    console.log("get-rfc.ts --id <RFC ID>");
}

if (flags.help) {
    printHelp();
    exit(0);
}

if (flags.id) {
    const rfcId = parseInt(flags.id, 10);
    if (isNaN(rfcId)) {
        console.error("Invalid RFC id");
        exit(1);
    }
    await getAndPrintRfc(rfcId);
} else {
    printHelp();
    exit(1);
}

async function getAndPrintRfc(rfcId: number): Promise<void> {
    const url = `https://play.hatter.me/ietf/rfc${rfcId}.txt`;
    const fileMeta = await fetchFileWithCache(url, {
        base32Filename: true,
        hierarchicalCacheDir: true,
    });
    const content = await readFileToString(fileMeta.cache_full_path);
    console.log(content);
}