<?php

namespace App\Http\Controllers;

use App\Models\PasswordSecurity;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Hash;

class PasswordSecurityController extends Controller
{
    /**
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Contracts\Foundation\Application|\Illuminate\Contracts\View\Factory|\Illuminate\Contracts\View\View
     */
    public function show2faForm(Request $request)
    {
        $user = Auth::user();

        $google2fa_url = '';
        if ($user->passwordSecurity()->exists()) {
            $google2fa_url = \Google2FA::getQRCodeInline(
                config('app.name'),
                $user->email,
                $user->passwordSecurity->google2fa_secret
            );
        }
        $data = [
            'user' => $user,
            'google2fa_url' => $google2fa_url,
        ];

        return view('auth.2fa')->with('data', $data);
    }

    /**
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Contracts\Foundation\Application|\Illuminate\Http\RedirectResponse|\Illuminate\Routing\Redirector
     *
     * @throws \PragmaRX\Google2FA\Exceptions\IncompatibleWithGoogleAuthenticatorException
     * @throws \PragmaRX\Google2FA\Exceptions\InvalidCharactersException
     * @throws \PragmaRX\Google2FA\Exceptions\SecretKeyTooShortException
     */
    public function generate2faSecret(Request $request)
    {
        $user = Auth::user();

        // Add the secret key to the registration data
        PasswordSecurity::create(
            [
                'user_id' => $user->id,
                'google2fa_enable' => 0,
                'google2fa_secret' => \Google2FA::generateSecretKey(),
            ]
        );

        return redirect('2fa')->with('success', 'Secret Key is generated, Please verify Code to Enable 2FA');
    }

    /**
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Contracts\Foundation\Application|\Illuminate\Http\RedirectResponse|\Illuminate\Routing\Redirector
     *
     * @throws \PragmaRX\Google2FA\Exceptions\IncompatibleWithGoogleAuthenticatorException
     * @throws \PragmaRX\Google2FA\Exceptions\InvalidCharactersException
     * @throws \PragmaRX\Google2FA\Exceptions\SecretKeyTooShortException
     */
    public function enable2fa(Request $request)
    {
        $user = Auth::user();
        $secret = $request->input('verify-code');
        $valid = \Google2FA::verifyKey($user->passwordSecurity->google2fa_secret, $secret);
        if ($valid) {
            $user->passwordSecurity->google2fa_enable = 1;
            $user->passwordSecurity->save();

            return redirect('2fa')->with('success', '2FA is Enabled Successfully.');
        }

        return redirect('2fa')->with('error', 'Invalid Verification Code, Please try again.');
    }

    /**
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Contracts\Foundation\Application|\Illuminate\Http\RedirectResponse|\Illuminate\Routing\Redirector
     */
    public function disable2fa(Request $request)
    {
        if (! (Hash::check($request->get('current-password'), Auth::user()->password))) {
            // The passwords matches
            return redirect()->back()->with('error', 'Your password does not match with your account password. Please try again.');
        }

        $validatedData = $request->validate([
            'current-password' => 'required',
        ]);
        $user = Auth::user();
        $user->passwordSecurity->google2fa_enable = 0;
        $user->passwordSecurity->save();

        return redirect('2fa')->with('success', '2FA is now Disabled.');
    }
}