#!/usr/bin/env -S /root/.deno/bin/deno run --allow-env --allow-read --unstable --allow-sys --allow-run --allow-write
import {load} from "https://deno.land/std@0.214.0/dotenv/mod.ts";
import { Command } from "https://deno.land/x/cliffy@v0.25.7/mod.ts";

async function changeTextRecord(domain: string, token:string, text: string){
    const url = `https://www.duckdns.org/update?domains=${domain}&token=${token}&txt=${text}`
    const res = await fetch(url);
    const c = await res.text()
    return c === "OK"
}


const env = await load();
const domain = env.DUCKDNS_DOMAIN;
const token = env.DUCKDNS_TOKEN;
/*
sudo certbot certonly --manual --preferred-challenges dns --renew-by-default -d "*.pages.prelude.duckdns.org"
*/
if(import.meta.main){
    if (!domain || !token){
        console.log("Env not found!");
        Deno.exit(1);
    }

    //const cmd = new Deno.Command("certbot",{
    //    args:[
    //        "certonly",
    //        "--manual",
    //        "--preferred-challenges", 
    //        "dns",
    //        "--renew-by-default",
    //        "-d", "*.pages.prelude.duckdns.org"
    //    ],
    //    stdin: "piped",
    //    stdout: "piped",       
    //});
//
    //const proc = cmd.spawn();
    //await proc.stdout.pipeTo(Deno.stdout.writable);

    await new Command()
        .name("renew_dns")
        .description("Duckdns TXT Record renewer")
        .version("v1.0.0")
        .option("-q, --quiet", "disable output.")
        .arguments("<text>")
        .action(async ({quiet},text)=>{
            const s = await changeTextRecord(domain, token, text);
            if (s) {
                if (!quiet){
                    console.log("success!");
                }
                Deno.exit(0);
            }
            else {
                if(!quiet){
                    console.log("failed!");
                }
                Deno.exit(1);
            }
        })
        .parse(Deno.args);

}