<?php
/**
 * Pterodactyl - Panel
 * Copyright (c) 2015 - 2016 Dane Everitt <dane@daneeveritt.com>
 * Some Modifications (c) 2015 Dylan Seidt <dylan.seidt@gmail.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
namespace Pterodactyl\Http\Controllers\Base;

use Auth;
use Hash;
use Google2FA;
use Alert;

use Pterodactyl\Models;
use Pterodactyl\Exceptions\DisplayException;

use Pterodactyl\Http\Controllers\Controller;
use Illuminate\Http\Request;

class IndexController extends Controller
{

    /**
     * Controller Constructor
     */
    public function __construct()
    {
        //
    }

    /**
     * Returns listing of user's servers.
     *
     * @param  \Illuminate\Http\Request $request
     * @return \Illuminate\Contracts\View\View
     */
    public function getIndex(Request $request)
    {
        return view('base.index', [
            'servers' => Models\Server::getUserServers(10),
        ]);
    }

    /**
     * Generate a random string.
     *
     * @param  \Illuminate\Http\Request $request
     * @return string
     */
    public function getPassword(Request $request, $length = 16)
    {
        $length = ($length < 8) ? 8 : $length;
        return str_random($length);
    }

    /**
     * Returns Security Management Page.
     *
     * @param  \Illuminate\Http\Request $request
     * @return \Illuminate\Contracts\View\View
     */
    public function getAccountSecurity(Request $request)
    {
        return view('base.security', [
            'sessions' => Models\Session::where('user_id', Auth::user()->id)->get()
        ]);
    }

    /**
     * Generates TOTP Secret and returns popup data for user to verify
     * that they can generate a valid response.
     *
     * @param  \Illuminate\Http\Request $request
     * @return \Illuminate\Contracts\View\View
     */
    public function putAccountTotp(Request $request)
    {

        $user = $request->user();

        $user->totp_secret = Google2FA::generateSecretKey();
        $user->save();

        return response()->json([
            'qrImage' => Google2FA::getQRCodeGoogleUrl(
                'Pterodactyl',
                $user->email,
                $user->totp_secret
            ),
            'secret' => $user->totp_secret
        ]);

    }

    /**
     * Verifies that 2FA token recieved is valid and will work on the account.
     *
     * @param  \Illuminate\Http\Request $request
     * @return \Illuminate\Http\Response
     */
    public function postAccountTotp(Request $request)
    {

        if (!$request->has('token')) {
            return response(null, 500);
        }

        $user = $request->user();
        if($user->toggleTotp($request->input('token'))) {
            return response('true');
        }

        return response('false');

    }

    /**
     * Disables TOTP on an account.
     *
     * @param  \Illuminate\Http\Request $request
     * @return \Illuminate\Http\Response
     */
    public function deleteAccountTotp(Request $request)
    {

        if (!$request->has('token')) {
            Alert::danger('Missing required `token` field in request.')->flash();
            return redirect()->route('account.totp');
        }

        $user = $request->user();
        if($user->toggleTotp($request->input('token'))) {
            return redirect()->route('account.totp');
        }

        Alert::danger('The TOTP token provided was invalid.')->flash();
        return redirect()->route('account.totp');

    }

    /**
     * Display base account information page.
     *
     * @param  \Illuminate\Http\Request $request
     * @return \Illuminate\Contracts\View\View
     */
    public function getAccount(Request $request)
    {
        return view('base.account');
    }

    /**
     * Update an account email.
     *
     * @param  \Illuminate\Http\Request $request
     * @return \Illuminate\Http\Response
     */
    public function postAccountEmail(Request $request)
    {

        $this->validate($request, [
            'new_email' => 'required|email',
            'password' => 'required'
        ]);

        $user = $request->user();

        if (!password_verify($request->input('password'), $user->password)) {
            Alert::danger('The password provided was not valid for this account.')->flash();
            return redirect()->route('account');
        }

        $user->email = $request->input('new_email');
        $user->save();

        Alert::success('Your email address has successfully been updated.')->flash();
        return redirect()->route('account');

    }

    /**
     * Update an account password.
     *
     * @param  \Illuminate\Http\Request $request
     * @return \Illuminate\Http\Response
     */
    public function postAccountPassword(Request $request)
    {

        $this->validate($request, [
            'current_password' => 'required',
            'new_password' => 'required|confirmed|different:current_password|regex:((?=.*\d)(?=.*[a-z])(?=.*[A-Z]).{8,})',
            'new_password_confirmation' => 'required'
        ]);

        $user = $request->user();

        if (!password_verify($request->input('current_password'), $user->password)) {
            Alert::danger('The password provided was not valid for this account.')->flash();
            return redirect()->route('account');
        }

        try {
            $user->setPassword($request->input('new_password'));
            Alert::success('Your password has successfully been updated.')->flash();
        } catch (DisplayException $e) {
            Alert::danger($e->getMessage())->flash();
        }

        return redirect()->route('account');

    }

    public function getRevokeSession(Request $request, $id)
    {
        $session = Models\Session::where('id', $id)->where('user_id', Auth::user()->id)->firstOrFail();
        $session->delete();
        return redirect()->route('account.security');
    }

}