import { load } from "@std/dotenv";
import { Client } from 'ldapts';
import { log } from "./log.ts";

const dirname = new URL('.', import.meta.url).pathname;
await load({ envPath: `${dirname}/.env`, export: true });

const config = {
  url: Deno.env.get("LDAP_URL"),
  bindDN: Deno.env.get("LDAP_BIND_DN"),
  password: Deno.env.get("LDAP_PASSWORD"),
  searchDN: Deno.env.get("LDAP_SEARCH_DN")
}

const client = new Client({ url: config.url });

export async function lookupPubkeyByUsername (username: string) {
  let pubkey;

  try {
    await client.bind(config.bindDN, config.password);

    const { searchEntries } = await client.search(config.searchDN, {
      filter: `(cn=${username})`,
      attributes: ['nostrKey']
    });

    pubkey = searchEntries[0]?.nostrKey;
  } catch (ex) {
    log(ex, "red");
  } finally {
    await client.unbind();
    return pubkey;
  }
}

export async function lookupUsernameByPubkey (pubkey: string) {
  let username;

  try {
    await client.bind(config.bindDN, config.password);

    const { searchEntries } = await client.search(config.searchDN, {
      filter: `(nostrKey=${pubkey})`,
      attributes: ['cn']
    });

    username = searchEntries[0]?.cn;
  } catch (ex) {
    log(ex, "red");
  } finally {
    await client.unbind();
    return username;
  }
}