<?php

namespace App\Http\Controllers;

use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Http;
use Illuminate\Support\Facades\Log;

/**
 * City-Lookup via Google Geocoding. Wenn nur ein Treffer → direkt flyTo.
 * Wenn mehrere (z.B. "Linz" Österreich vs Pennsylvania) → array für User-Auswahl.
 */
class FoxCitiesController
{
    public function __invoke(Request $request): JsonResponse
    {
        $request->validate([
            'query' => 'required|string|max:120',
        ]);

        $key = config('services.google.maps_key');
        if (empty($key)) {
            return response()->json(['error' => 'no_key'], 503);
        }

        $query = $request->string('query')->toString();

        try {
            $response = Http::timeout(8)->get('https://maps.googleapis.com/maps/api/geocode/json', [
                'address' => $query,
                'language' => 'de',
                'key' => $key,
            ]);

            if (! $response->successful()) {
                return response()->json(['error' => 'api_error', 'status' => $response->status()], 502);
            }

            $data = $response->json();
            if (($data['status'] ?? null) !== 'OK' || empty($data['results'])) {
                return response()->json(['results' => []], 200);
            }

            // Nur Städte/Ortschaften behalten — keine POI/Adressen
            $cityTypes = ['locality', 'administrative_area_level_1', 'administrative_area_level_2', 'political'];
            $candidates = [];
            foreach ($data['results'] as $r) {
                $types = $r['types'] ?? [];
                if (! array_intersect($cityTypes, $types)) {
                    continue;
                }
                $components = $r['address_components'] ?? [];
                $country = '';
                $region = '';
                foreach ($components as $c) {
                    if (in_array('country', $c['types'] ?? [], true)) {
                        $country = $c['long_name'] ?? '';
                    }
                    if (in_array('administrative_area_level_1', $c['types'] ?? [], true)) {
                        $region = $c['long_name'] ?? '';
                    }
                }
                $candidates[] = [
                    'name' => $r['address_components'][0]['long_name'] ?? $query,
                    'formatted' => $r['formatted_address'] ?? '',
                    'country' => $country,
                    'region' => $region,
                    'lat' => $r['geometry']['location']['lat'] ?? null,
                    'lng' => $r['geometry']['location']['lng'] ?? null,
                ];

                if (count($candidates) >= 5) {
                    break;
                }
            }

            return response()->json(['results' => $candidates]);
        } catch (\Throwable $e) {
            Log::warning('Cities lookup exception', ['e' => $e->getMessage()]);

            return response()->json(['error' => 'exception'], 500);
        }
    }
}