<?php

namespace App\Http\Middleware;

use Closure;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use PHPOpenSourceSaver\JWTAuth\Exceptions\JWTException;
use PHPOpenSourceSaver\JWTAuth\Facades\JWTAuth;
use Symfony\Component\HttpFoundation\Response;

/**
 * Session (web) auth first (legacy parity), then Sanctum / JWT like {@see MultiAuth}.
 */
class TeacherPortalAuthenticate
{
    public function handle(Request $request, Closure $next): Response
    {
        if (Auth::guard('web')->check()) {
            $user = Auth::guard('web')->user();
            Auth::setUser($user);

            if ($response = $this->denyUnavailableAccount($user)) {
                return $response;
            }

            return $next($request);
        }

        try {
            $sanctumUser = Auth::guard('sanctum')->user();
        } catch (\InvalidArgumentException) {
            $sanctumUser = null;
        }
        if ($sanctumUser) {
            Auth::setUser($sanctumUser);

            if ($response = $this->denyUnavailableAccount($sanctumUser)) {
                return $response;
            }

            return $next($request);
        }

        $token = $request->bearerToken();
        if ($token !== null && $token !== '') {
            try {
                $jwtUser = JWTAuth::setToken($token)->authenticate();
                if ($jwtUser) {
                    Auth::setUser($jwtUser);

                    if ($response = $this->denyUnavailableAccount($jwtUser)) {
                        return $response;
                    }

                    return $next($request);
                }
            } catch (JWTException $e) {
                // fall through
            }
        }

        return response()->json(['message' => 'Unauthorized.'], 401);
    }

    private function denyUnavailableAccount(object $user): ?Response
    {
        $status = strtolower(trim((string) ($user->status ?? '')));
        $isVerified = filter_var($user->is_verified ?? false, FILTER_VALIDATE_BOOLEAN);
        $isSuspended = filter_var($user->is_suspended ?? false, FILTER_VALIDATE_BOOLEAN);

        if (! $isVerified || $status !== 'active' || $isSuspended) {
            return response()->json(['message' => 'Account unavailable.'], 403);
        }

        return null;
    }
}