<?php

namespace App\Http\Controllers;

use App\Providers\RouteServiceProvider;
use Carbon\Carbon;
use Illuminate\Http\Request;
use lfkeitel\phptotp\Base32;
use lfkeitel\phptotp\Totp;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Session;

class OTPController extends Controller
{
    public function verify(Request $request)
    {
        $user = session()->get('tmpUserOTP');
        if (!$user) {
            return redirect(RouteServiceProvider::HOME);
        }
        return view('auth.verify');
    }

    public function check(Request $request)
    {
        $otp  = $request->otp;
        $user = session()->get('tmpUserOTP');
        if (!$user) {
            return redirect(RouteServiceProvider::HOME);
        }

        $lastCode = (new Totp())->GenerateToken(Base32::decode($user->totp_secret), Carbon::now()->subSeconds(30)->timestamp);
        $code     = (new Totp())->GenerateToken(Base32::decode($user->totp_secret));

        if ($otp === $code || $otp === $lastCode) {
            Auth::login($user);
            return redirect(RouteServiceProvider::HOME);
        } else {
            Auth::logout();
            Session::flush();
            return redirect()->route('verification_failed');
        }
    }

    public function sendOTPBySMS()
    {
        $user = session()->get('tmpUserOTP');
        if (!$user) {
            return back()->withErrors('User not found.');
        }

        if (is_null($user->phone)) {
            return back()->withErrors('Phone number missing.');
        }

        $otp = (new Totp())->GenerateToken(Base32::decode($user->totp_secret));
        /** @var \App\Lib\LDC\MailjetSms */
        $mj         = app('MailjetSms');
        $mjResponse = $mj->send("OTP : " . implode(' ', str_split($otp)), $user->phone);

        /** @var \GuzzleHttp\Psr7\Response $mjResponse */
        $responseStatus = $mjResponse->getStatusCode();
// "200"
        $responsePhrase = $mjResponse->getReasonPhrase();
// "OK"
        if ($responseStatus == 200) {
            $mjSmsResponse = $mjResponse->getBody()->getContents();
            return back()->with('success', "SMS envoyé.");
        }
        return back()->withErrors('SMS not sent.');
    }
}