import { join } from 'node:path';
import { createRouter } from '../../create-router';
import { DATA_PATH } from '../../data-path';

export const searxngRouter = createRouter();

const SEARXNG_FILE = join(DATA_PATH, 'searxng.json');

const DEFAULT_URL = 'https://searxng.home.pastilhas.eu';

export type SearxngConfig = {
  url: string;
};

export async function readSearxngConfig(): Promise<SearxngConfig> {
  try {
    const file = Bun.file(SEARXNG_FILE);
    if (!(await file.exists())) return { url: DEFAULT_URL };
    return (await file.json()) as SearxngConfig;
  } catch {
    return { url: DEFAULT_URL };
  }
}

async function writeSearxngConfig(config: SearxngConfig) {
  await Bun.write(SEARXNG_FILE, JSON.stringify(config, null, 2));
}

searxngRouter.get('/', async (ctx) => {
  return ctx.json(await readSearxngConfig());
});

searxngRouter.put('/', async (ctx) => {
  const { url } = await ctx.req.json<{ url: string }>();
  if (!url?.trim()) return ctx.json({ error: 'URL is required' }, 400);
  const config: SearxngConfig = { url: url.trim().replace(/\/+$/, '') };
  await writeSearxngConfig(config);
  return ctx.json(config);
});