<?php

namespace App\Http\Controllers\Api\V1;

use App\Http\Controllers\Controller;
use App\Models\Setting;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Cache;

/**
 * @group Mobile App Config
 *
 * Public endpoint for mobile app version checks and maintenance status.
 */
class AppConfigController extends Controller
{
    /**
     * Get App Config
     *
     * Returns version info and maintenance status for the given platform.
     *
     * @unauthenticated
     * @queryParam platform string The platform (android|ios). Defaults to android.
     */
    public function __invoke(Request $request): JsonResponse
    {
        $platform = $request->input('platform', 'android');
        if (!\in_array($platform, ['android', 'ios'], true)) {
            $platform = 'android';
        }

        $settings = Cache::get('system_settings', function () {
            try {
                return Setting::pluck('value', 'key')->toArray();
            } catch (\Throwable) {
                return [];
            }
        });

        if ($platform === 'android') {
            $maintenance = filter_var($settings['android_maintenance_mode'] ?? false, FILTER_VALIDATE_BOOLEAN);

            if ($maintenance) {
                return response()->json([
                    'maintenance' => true,
                    'message'     => 'The app is temporarily under maintenance. Please try again later.',
                ], 503);
            }

            return response()->json([
                'maintenance'    => false,
                'latest_version' => $settings['android_latest_version'] ?? '1.0.0',
                'min_version'    => $settings['android_min_version'] ?? '1.0.0',
                'store_url'      => $settings['android_playstore_url'] ?? null,
                'platform'       => 'android',
            ]);
        }

        // ios — placeholder using same pattern, expandable when ios settings are added
        return response()->json([
            'maintenance'    => false,
            'latest_version' => $settings['ios_latest_version'] ?? '1.0.0',
            'min_version'    => $settings['ios_min_version'] ?? '1.0.0',
            'store_url'      => $settings['ios_appstore_url'] ?? null,
            'platform'       => 'ios',
        ]);
    }
}