openvk/ServiceAPI/Polls.php
2022-10-11 19:04:43 +03:00

70 lines
No EOL
2 KiB
PHP

<?php declare(strict_types=1);
namespace openvk\ServiceAPI;
use Chandler\MVC\Routing\Router;
use openvk\Web\Models\Entities\User;
use openvk\Web\Models\Exceptions\{AlreadyVotedException, InvalidOptionException, PollLockedException};
use openvk\Web\Models\Repositories\Polls as PollRepo;
use UnexpectedValueException;
class Polls implements Handler
{
protected $user;
protected $polls;
function __construct(?User $user)
{
$this->user = $user;
$this->polls = new PollRepo;
}
private function getPollHtml(int $poll): string
{
return Router::i()->execute("/poll$poll", "SAPI");
}
function vote(int $pollId, string $options, callable $resolve, callable $reject): void
{
$poll = $this->polls->get($pollId);
if(!$poll) {
$reject("Poll not found");
return;
}
try {
$options = explode(",", $options);
$poll->vote($this->user, $options);
} catch(AlreadyVotedException $ex) {
$reject("Poll state changed: user has already voted.");
return;
} catch(PollLockedException $ex) {
$reject("Poll state changed: poll has ended.");
return;
} catch(InvalidOptionException $ex) {
$reject("Foreign options passed.");
return;
} catch(UnexpectedValueException $ex) {
$reject("Too much options passed.");
return;
}
$resolve(["html" => $this->getPollHtml($pollId)]);
}
function unvote(int $pollId, callable $resolve, callable $reject): void
{
$poll = $this->polls->get($pollId);
if(!$poll) {
$reject("Poll not found");
return;
}
try {
$poll->revokeVote($this->user);
} catch(PollLockedException $ex) {
$reject("Votes can't be revoked from this poll.");
return;
}
$resolve(["html" => $this->getPollHtml($pollId)]);
}
}