import { load } from "@std/dotenv";
import { parse } from "jsr:@std/yaml";
import { log } from "./log.ts";

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

let staticUsers;

try {
  const yamlContent = await Deno.readTextFile(`${dirname}/users.yaml`);
  staticUsers = parse(yamlContent);
  log(`Serving content for ${Object.keys(staticUsers).length} pubkeys from users.yaml`, "blue");
} catch {
  staticUsers = {};
  log(`Could not find or parse a users.yaml config`, "yellow");
}

const relay_urls = Deno.env.get("RELAY_URLS")?.split(",");

const config = {
  port: Deno.env.get("PORT") || 8000,
  base_url: Deno.env.get("BASE_URL") || `http://localhost:8000`,
  relay_urls,
  staticUsers: staticUsers,
  ldapEnabled: !!Deno.env.get("LDAP_URL"),
  ldap: {
    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"),
  },
};

if (config.ldapEnabled && config.ldap.url) {
  log(`Serving content for pubkeys from ${config.ldap.url}`, "blue");
} else {
  log(`LDAP not enabled`, "blue");
}

if (Object.keys(staticUsers).length === 0 && !config.ldapEnabled) {
  log(`Neither static users nor LDAP configured. Nothing to serve.`);
  Deno.exit(1);
}

if (config.relay_urls?.length > 0) {
  log(`Relays: ${config.relay_urls.join(", ")}`, "green");
} else {
  log(`No relays configured. Please add at least one relay to RELAY_URLS.`);
  Deno.exit(1);
}

export default config;