<?php
/**
 * NOTICE OF LICENSE.
 *
 * UNIT3D Community Edition is open-sourced software licensed under the GNU Affero General Public License v3.0
 * The details is bundled with this project in the file LICENSE.txt.
 *
 * @project    UNIT3D Community Edition
 *
 * @author     HDVinnie <hdinnovations@protonmail.com>
 * @license    https://www.gnu.org/licenses/agpl-3.0.en.html/ GNU Affero General Public License v3.0
 */

namespace App\Http\Controllers;

use App\Http\Requests\VoteOnPoll;
use App\Models\Option;
use App\Models\Poll;
use App\Models\Voter;
use App\Repositories\ChatRepository;
use Illuminate\Http\Request;

class PollController extends Controller
{
    /**
     * @var ChatRepository
     */
    private $chat;

    /**
     * PollController Constructor.
     *
     * @param ChatRepository $chat
     */
    public function __construct(ChatRepository $chat)
    {
        $this->chat = $chat;
    }

    /**
     * Show All Polls.
     *
     * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
     */
    public function index()
    {
        $polls = Poll::latest()->paginate(15);

        return view('poll.latest', ['polls' => $polls]);
    }

    /**
     * Show A Poll.
     *
     * @param \Illuminate\Http\Request $request
     * @param \App\Models\Poll         $id
     *
     * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
     */
    public function show(Request $request, $id)
    {
        $poll = Poll::findOrFail($id);
        $user = $request->user();
        $user_has_voted = $poll->voters->where('user_id', '=', $user->id)->isNotEmpty();

        if ($user_has_voted) {
            return redirect()->route('poll_results', ['id' => $poll->id])
                ->withInfo('You have already vote on this poll. Here are the results.');
        }

        return view('poll.show', compact('poll'));
    }

    /**
     * Vote On A Poll.
     *
     * @param VoteOnPoll $request
     *
     * @return \Illuminate\Http\RedirectResponse
     */
    public function vote(VoteOnPoll $request)
    {
        $user = $request->user();
        $poll = Option::findOrFail($request->input('option.0'))->poll;
        $voted = Voter::where('user_id', '=', $user->id)
            ->where('poll_id', '=', $poll->id)
            ->exists();
        if ($voted) {
            return redirect()->route('poll_results', ['id' => $poll->id])
                ->withErrors('Bro have already vote on this poll. Your vote has not been counted.');
        }

        // Operate options after validation
        foreach ($request->input('option') as $option) {
            Option::findOrFail($option)->increment('votes');
        }

        // Make voter after option operation completed
        $vote = new Voter();
        $vote->poll_id = $poll->id;
        $vote->user_id = $user->id;
        $vote->save();

        $poll_url = hrefPoll($poll);
        $profile_url = hrefProfile($user);

        $this->chat->systemMessage(
            sprintf('[url=%s]%s[/url] has voted on poll [url=%s]%s[/url]', $profile_url, $user->username, $poll_url, $poll->title)
        );

        return redirect()->route('poll_results', ['id' => $poll->id])
            ->withSuccess('Your vote has been counted.');
    }

    /**
     * Show A Polls Results.
     *
     * @param \App\Models\Poll $id
     *
     * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
     */
    public function result($id)
    {
        $poll = Poll::findOrFail($id);
        $map = [
            'poll'        => $poll,
            'total_votes' => $poll->totalVotes(),
        ];

        return view('poll.result', $map);
    }
}