RelationsTable.php

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<?php

declare(strict_types=1);

namespace ILIAS\Contact\BuddySystem\Tables;

use ILIAS\Contact\TableRows;
use ILIAS\UI\Component\Table\DataRow;
use ilBuddySystemArrayCollection;
use ILIAS\UI\Component\Component;
use ilBuddySystemRelationState;
use ILIAS\UI\Component\Table\Action\Action;
use ilCtrlInterface;
use ILIAS\UI\Component\Table\DataRowBuilder;
use ILIAS\Data\Range;
use ILIAS\Data\Order;
use ilObjUser;
use ilStr;
use ilUserUtil;
use ilBuddyList;
use ilBuddySystemRelationStateFactory;
use ilBuddySystemRelation;
use ilLanguage;
use ILIAS\UI\Factory as UIFactory;
use ilUIService;
use ILIAS\UI\Component\Input\Container\Filter\Standard as Filter;
use Closure;
use ILIAS\HTTP\GlobalHttpState as Http;
use Generator;

class RelationsTable
{
    public function __construct(
        private readonly UIFactory $create,
        private readonly ilLanguage $lng,
        private readonly ilUIService $ui_service,
        private readonly Http $http
    ) {
    }

    public static function data(array $filter = []): array
    {
        $relations = ilBuddyList::getInstanceByGlobalUser()->getRelations();

        $state_filter = (string) ($filter['state'] ?? '');
        $state_factory = ilBuddySystemRelationStateFactory::getInstance();

        if ($state_filter) {
            $relations = $relations->filter(static fn(ilBuddySystemRelation $relation): bool => (
                $state_factory
                    ->getTableFilterStateMapper($relation->getState())
                    ->filterMatchesRelation($state_filter, $relation)
            ));
        }

        $public_names = ilUserUtil::getNamePresentation($relations->getKeys(), false, false, '', false, true, false);
        $logins = ilUserUtil::getNamePresentation($relations->getKeys(), false, false, '', false, false, false);

        $logins = array_map(static function (string $value): string {
            $matches = null;
            preg_match_all('/\[([^\[]+?)\]/', $value, $matches);
            return $matches[1][count($matches[1]) - 1] ?? '';
        }, $logins);

        $public_name_query = (string) ($filter['name'] ?? '');
        if ($public_name_query) {
            $relations = $relations->filter(self::filter($public_name_query, $relations, $public_names, $logins));
        }

        $data = [];
        foreach ($relations->toArray() as $user_id => $relation) {
            $txt = $state_factory->getTableFilterStateMapper($relation->getState())->text($relation);
            $data[] = [
                'user_id' => $user_id,
                'public_name' => $public_names[$user_id],
                'login' => $logins[$user_id],
                'state' => $relation->getState(),
                'points' => $relation->getCurrentPossibleTargetStates()->toArray(),
                'state-text' => $txt,
            ];
        }

        return $data;
    }

    public function build(array $multi_actions, string $target_url, callable $action): array
    {
        $filter = $this->filterComponent($target_url);
        $data = static::data($this->ui_service->filter()->getData($filter) ?: []);
        $single_actions = $this->actions($data, $action);

        $rows = $this->rows($data, array_keys($single_actions));
        $return = [];
        $return[] = $filter;
        $return[] = $this->create->table()->data(
            new TableRows($rows),
            $this->lng->txt('buddy_tbl_title_relations'),
            [
                'public_name' => $this->create->table()->column()->text($this->lng->txt('name')),
                'login' => $this->create->table()->column()->text($this->lng->txt('login')),
                'state-text' => $this->create->table()->column()
                    ->text($this->lng->txt('buddy_tbl_state_actions_col_label')),
            ]
        )->withRequest($this->http->request())->withActions(
            array_merge($single_actions, $multi_actions)
        );

        return $return;
    }

    private static function filter(string $public_name_query, ilBuddySystemArrayCollection $relations, array $public_names, array $logins): Closure
    {
        $in_string = static fn(string $needle, string $haystack): bool => false !== ilStr::strpos(
            ilStr::strtolower($haystack),
            ilStr::strtolower($needle),
            0
        );

        return self::pipe($relations->getKey(...), static fn(int $user_id): bool => (
            $in_string($public_name_query, $public_names[$user_id]) ||
            $in_string($public_name_query, $logins[$user_id])
        ) && ilObjUser::_lookupActive($user_id));
    }

    private static function pipe(Closure $a, Closure $b): Closure
    {
        return static fn($x) => $b($a($x));
    }

    private function actions(array $data, callable $action): array
    {
        $actions = [];
        foreach ($data as $row) {
            foreach ($row['points'] as $point) {
                $actions[$row['state'] . '->' . $point] = $action(
                    'single',
                    'buddy_bs_act_btn_txt_' . $row['state']->getSnakeName() . '_to_' . $point->getSnakeName(),
                    $point->getAction()
                );
            }
        }

        return $actions;
    }

    private function filterComponent(string $target_url): Filter
    {
        $state_factory = ilBuddySystemRelationStateFactory::getInstance();
        $options = array_merge(...array_map(
            fn($m): array => $m->optionsForState(),
            array_map(
                $state_factory->getTableFilterStateMapper(...),
                array_filter($state_factory->getValidStates(), fn($s): bool => !$s->isInitial())
            )
        ));

        $fields = [
            'state' => $this->create->input()->field()->select($this->lng->txt('buddy_tbl_filter_state'), $options),
            'name' => $this->create->input()->field()->text($this->lng->txt('name')),
        ];

        return $this->ui_service->filter()->standard(
            'contact-filter',
            $target_url,
            $fields,
            array_map(fn(): bool => true, $fields),
            true,
            true
        );
    }

    private function rows(array $data, array $actions): Closure
    {
        return static function (
            DataRowBuilder $row_builder,
            array $visible_column_ids,
            Range $range,
            Order $order
        ) use ($data, $actions): Generator {
            $order = $order->get();
            $times = current($order) === 'ASC' ? 1 : -1;
            usort($data, fn(array $a, array $b): int => $times * strcasecmp($a[key($order)], $b[key($order)]));
            foreach ($data as $row) {
                $transitions = array_map(fn($s): string => $row['state'] . '->' . $s, $row['points']);
                yield array_reduce(
                    $actions,
                    fn(DataRow $row, string $action): DataRow => in_array($action, $transitions, true) ?
                        $row :
                        $row->withDisabledAction($action),
                    $row_builder->buildDataRow((string) $row['user_id'], $row)
                );
            }
        };
    }
}