import { DEFAULT_RELAY_URL, normalizeRelayUrl } from "../shared/rendezvous";

const RELAY_URL_KEY = "peach_relay_url_v1";
const LAN_ONLY_KEY = "peach_sync_lan_only_v1";

export interface RelaySettings {
  relayUrl: string;
  lanOnly: boolean;
}

export async function getRelaySettings(): Promise<RelaySettings> {
  try {
    const raw = await chrome.storage.local.get([RELAY_URL_KEY, LAN_ONLY_KEY]);
    const values = raw as Record<string, unknown>;
    const relayUrl =
      typeof values[RELAY_URL_KEY] === "string"
        ? safeNormalize(values[RELAY_URL_KEY] as string)
        : DEFAULT_RELAY_URL;
    return {
      relayUrl,
      lanOnly: values[LAN_ONLY_KEY] === true,
    };
  } catch {
    return { relayUrl: DEFAULT_RELAY_URL, lanOnly: false };
  }
}

export async function setRelayUrl(input: string): Promise<string> {
  const relayUrl = normalizeRelayUrl(input);
  await chrome.storage.local.set({ [RELAY_URL_KEY]: relayUrl });
  return relayUrl;
}

export async function setLanOnly(lanOnly: boolean): Promise<void> {
  await chrome.storage.local.set({ [LAN_ONLY_KEY]: lanOnly });
}

function safeNormalize(input: string): string {
  try {
    return normalizeRelayUrl(input);
  } catch {
    return DEFAULT_RELAY_URL;
  }
}