ListScreenTable.php
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<?php
declare(strict_types=1);
namespace AC\Controller\Middleware;
use AC\ListScreen;
use AC\ListScreenFactory;
use AC\ListScreenRepository\Sort;
use AC\ListScreenRepository\Storage;
use AC\Middleware;
use AC\Request;
use AC\Table;
use AC\Type\ListScreenId;
use Exception;
use WP_Screen;
use WP_User;
class ListScreenTable implements Middleware
{
private $storage;
private $list_screen_factory;
private $wp_screen;
private $preference;
public function __construct(
Storage $storage,
ListScreenFactory $list_screen_factory,
WP_Screen $wp_screen,
Table\LayoutPreference $preference
) {
$this->storage = $storage;
$this->list_screen_factory = $list_screen_factory;
$this->wp_screen = $wp_screen;
$this->preference = $preference;
}
private function get_first_list_screen(WP_User $user): ?ListScreen
{
$list_key = $this->get_list_key();
if ( ! $list_key) {
return null;
}
$list_screens = $this->storage->find_all_by_assigned_user(
$list_key,
$user,
new Sort\UserOrder($user, $list_key)
);
if ($list_screens->valid()) {
return $list_screens->current();
}
return $this->list_screen_factory->can_create($list_key)
? $this->list_screen_factory->create($list_key)
: null;
}
private function get_preference_list_screen(WP_User $user): ?ListScreen
{
$list_key = $this->get_list_key();
if ( ! $list_key) {
return null;
}
try {
$list_id = new ListScreenId((string)$this->preference->get($list_key));
} catch (Exception $e) {
return null;
}
$list_screen = $this->storage->find($list_id);
if ( ! $list_screen ||
! $list_screen->is_user_assigned($user) ||
$list_screen->get_key() !== $this->get_list_key()
) {
return null;
}
return $list_screen;
}
private function get_requested_list_screen(Request $request, WP_User $user): ?ListScreen
{
try {
$list_id = new ListScreenId((string)$request->get('layout'));
} catch (Exception $e) {
return null;
}
$list_screen = $this->storage->find($list_id);
if ( ! $list_screen ||
! $list_screen->is_user_allowed($user) ||
$list_screen->get_key() !== $this->get_list_key()
) {
return null;
}
return $list_screen;
}
private function get_list_key(): ?string
{
return $this->list_screen_factory->can_create_from_wp_screen($this->wp_screen)
? $this->list_screen_factory->create_from_wp_screen($this->wp_screen)->get_key()
: null;
}
private function get_list_screen(Request $request): ?ListScreen
{
$user = wp_get_current_user();
if ( ! $user) {
return null;
}
$list_screen = $this->get_requested_list_screen($request, $user);
if ( ! $list_screen) {
$list_screen = $this->get_preference_list_screen($user);
}
return $list_screen ?: $this->get_first_list_screen($user);
}
public function handle(Request $request): void
{
$request->get_parameters()->merge([
'list_screen' => $this->get_list_screen($request),
]);
}
}