import express, { Request, Response } from 'express';
import { authenticate } from '../middleware/auth';
import { AuthRequest } from '../types';
import {
  searchPlaces,
  getPlaceDetails,
  getPlacePhoto,
  reverseGeocode,
  resolveGoogleMapsUrl,
  autocompletePlaces,
} from '../services/mapsService';

const router = express.Router();

// POST /search
router.post('/search', authenticate, async (req: Request, res: Response) => {
  const authReq = req as AuthRequest;
  const { query } = req.body;

  if (!query) return res.status(400).json({ error: 'Search query is required' });

  try {
    const result = await searchPlaces(authReq.user.id, query, req.query.lang as string);
    res.json(result);
  } catch (err: unknown) {
    const status = (err as { status?: number }).status || 500;
    const message = err instanceof Error ? err.message : 'Search error';
    console.error('Maps search error:', err);
    res.status(status).json({ error: message });
  }
});

// POST /autocomplete
router.post('/autocomplete', authenticate, async (req: Request, res: Response) => {
  const authReq = req as AuthRequest;
  const { input, lang, locationBias } = req.body;

  if (!input || typeof input !== 'string') {
    return res.status(400).json({ error: 'Input is required' });
  }

  if (locationBias && (!Number.isFinite(locationBias.lat) || !Number.isFinite(locationBias.lng))) {
    return res.status(400).json({ error: 'Invalid locationBias: lat and lng must be finite numbers' });
  }

  try {
    const result = await autocompletePlaces(
      authReq.user.id,
      input,
      lang as string,
      locationBias as { lat: number; lng: number } | undefined,
    );
    res.json(result);
  } catch (err: unknown) {
    const status = (err as { status?: number }).status || 500;
    const message = err instanceof Error ? err.message : 'Autocomplete error';
    console.error('Maps autocomplete error:', err);
    res.status(status).json({ error: message });
  }
});

// GET /details/:placeId
router.get('/details/:placeId', authenticate, async (req: Request, res: Response) => {
  const authReq = req as AuthRequest;
  const { placeId } = req.params;

  try {
    const result = await getPlaceDetails(authReq.user.id, placeId, req.query.lang as string);
    res.json(result);
  } catch (err: unknown) {
    const status = (err as { status?: number }).status || 500;
    const message = err instanceof Error ? err.message : 'Error fetching place details';
    console.error('Maps details error:', err);
    res.status(status).json({ error: message });
  }
});

// GET /place-photo/:placeId
router.get('/place-photo/:placeId', authenticate, async (req: Request, res: Response) => {
  const authReq = req as AuthRequest;
  const { placeId } = req.params;
  const lat = parseFloat(req.query.lat as string);
  const lng = parseFloat(req.query.lng as string);

  try {
    const result = await getPlacePhoto(authReq.user.id, placeId, lat, lng, req.query.name as string);
    res.json(result);
  } catch (err: unknown) {
    const status = (err as { status?: number }).status || 500;
    const message = err instanceof Error ? err.message : 'Error fetching photo';
    if (status >= 500) console.error('Place photo error:', err);
    res.status(status).json({ error: message });
  }
});

// GET /reverse
router.get('/reverse', authenticate, async (req: Request, res: Response) => {
  const { lat, lng, lang } = req.query as { lat: string; lng: string; lang?: string };
  if (!lat || !lng) return res.status(400).json({ error: 'lat and lng required' });

  try {
    const result = await reverseGeocode(lat, lng, lang);
    res.json(result);
  } catch {
    res.json({ name: null, address: null });
  }
});

// POST /resolve-url
router.post('/resolve-url', authenticate, async (req: Request, res: Response) => {
  const { url } = req.body;
  if (!url || typeof url !== 'string') return res.status(400).json({ error: 'URL is required' });

  try {
    const result = await resolveGoogleMapsUrl(url);
    res.json(result);
  } catch (err: unknown) {
    const status = (err as { status?: number }).status || 400;
    const message = err instanceof Error ? err.message : 'Failed to resolve URL';
    console.error('[Maps] URL resolve error:', message);
    res.status(status).json({ error: message });
  }
});

export default router;