<?php

namespace App\Http\Middleware;

use Carbon\Carbon;
use Closure;
use Illuminate\Http\Response;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Log;

class KickOutInactiveUser
{
    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  string  $guards
     * @return mixed
     */
    public function handle($request, Closure $next, ...$guards)
    {
        // We do not track activity of:
        // - Guest
        // - User authenticated against a bearer token
        // - User authenticated via a reverse-proxy
        if (Auth::guest() || $request->bearerToken() || config('auth.defaults.guard') === 'reverse-proxy-guard') {
            return $next($request);
        }

        $user        = Auth::user();
        $now         = Carbon::now();
        $inactiveFor = (int) $now->diffInSeconds(Carbon::parse($user->last_seen_at), true);

        // Fetch all setting values
        $kickUserAfterXSecond = intval($user->preferences['kickUserAfter']) * 60;

        // If user has been inactive longer than the allowed inactivity period
        if ($kickUserAfterXSecond > 0 && $inactiveFor > $kickUserAfterXSecond) {
            $user->last_seen_at = $now->format('Y-m-d H:i:s');
            $user->save();
            Log::info(sprintf('User ID #%s detected as inactive, authentication rejected', $user->id));
            Auth::guard('web-guard')->logout();

            return response()->json(['message' => 'inactivity detected'], Response::HTTP_I_AM_A_TEAPOT);
        }

        return $next($request);
    }
}