Administration.php

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<?php

declare(strict_types=1);

namespace ILIAS\LegalDocuments;

use ILIAS\HTTP\Wrapper\WrapperFactory;
use ILIAS\Refinery\Factory;
use ILIAS\Refinery\Transformation;
use ILIAS\UI\Component\Button\Standard as Button;
use ILIAS\LegalDocuments\DocumentId;
use ILIAS\LegalDocuments\Value\Criterion;
use ILIAS\LegalDocuments\Value\Document;
use ILIAS\LegalDocuments\Value\CriterionContent;
use ILIAS\DI\Container;
use ILIAS\UI\Component\Component;
use ilDatePresentation;
use ilDateTime;
use InvalidArgumentException;
use ILIAS\Filesystem\Stream\Streams;
use Closure;
use ILIAS\Data\Result;
use ILIAS\Data\Result\Ok;
use ILIAS\LegalDocuments\DocumentId\NumberId;
use ILIAS\LegalDocuments\DocumentId\HashId;
use ILIAS\LegalDocuments\FileUpload\UploadHandler;
use ILIAS\LegalDocuments\FileUpload\PreProcessor;
use Exception;
use DateTimeImmutable;
use ILIAS\LegalDocuments\ConsumerToolbox\UI;
use ILIAS\LegalDocuments\Legacy\Confirmation;
use ilObjUserFolderGUI;
use ILIAS\LegalDocuments\Value\DocumentContent;
use ILIAS\UI\Component\Input\Container\Form\Form;

class Administration
{
    private readonly Closure $confirmation;
    private WrapperFactory $http_wrapper;
    private Factory $refinery;

    public function __construct(
        private readonly Config $config,
        private readonly Container $container,
        private readonly UI $ui,
        ?Closure $confirmation = null,
        ?WrapperFactory $http_wrapper = null,
        ?Factory $refinery = null
    ) {
        $this->confirmation = $confirmation ?? fn() => new Confirmation($this->container->language());
        $this->http_wrapper = $http_wrapper ?? $this->container->http()->wrapper();
        $this->refinery = $refinery ?? $this->container->refinery();
    }

    public function deleteDocumentsConfirmation(string $form_link, string $submit_command, string $cancel_command, array $documents): string
    {
        $items = array_column(array_map(fn($x) => [$x->id(), $x->content()->title()], $documents), 1, 0);

        return (($this->confirmation)())->render(
            $form_link,
            $submit_command,
            $cancel_command,
            $this->ui->txt('sure_delete_documents_p'),
            $items
        );
    }

    public function deleteDocuments(array $documents): void
    {
        array_map(
            $this->config->legalDocuments()->document()->repository()->deleteDocument(...),
            $documents
        );
    }

    public function withDocumentAndCriterion(Closure $proc): void
    {
        $document = $this->currentDocument()->value();
        $criterion_id = ($this->container->http()->request()->getQueryParams()['criterion_id'] ?? null);
        if (null === $criterion_id) {
            throw new InvalidArgumentException('Missing query parameter criterion_id.');
        }
        $criterion_id = (int) $criterion_id;

        $criterion = $this->find(
            fn($criterion) => $criterion->id() === $criterion_id,
            $document->criteria()
        );
        if (!$criterion) {
            throw new InvalidArgumentException('Invalid criterion_id given.');
        }

        $proc($document, $criterion);
    }

    public function retrieveDocuments(): array
    {
        $ids = $this->retrieveIds();
        $documents = $this->config->legalDocuments()->document()->repository()->select($ids);
        if (count($documents) !== count($ids)) {
            throw new InvalidArgumentException('List contains invalid documents.');
        }

        return $documents;
    }

    public function retrieveIds(): array
    {
        $ids = $this->retrieveValueOrDefaultFromPost(
            'ids',
            $this->container->refinery()->kindlyTo()->listOf(
                $this->container->refinery()->kindlyTo()->int()
            )
        );

        if (!$ids) {
            //Try reading from UI-Table action
            $ids = $this->retrieveValueOrDefaultFromQuery(
                'legal_document_id',
                $this->refinery->kindlyTo()->listOf($this->refinery->kindlyTo()->int()),
                []
            );
        }

        if (!$ids) {
            //Try reading from UI-Table "apply to all objects"
            $ids = $this->retrieveValueOrDefaultFromQuery(
                'legal_document_id',
                $this->refinery->kindlyTo()->listOf($this->refinery->kindlyTo()->string()),
                []
            );

            if (current($ids) === 'ALL_OBJECTS') {
                $ids = [];
                foreach ($this->config->legalDocuments()->document()->repository()->all() as $document) {
                    $ids[] = $document->id();
                }
            }
        }

        return $ids ?: [];
    }

    private function retrieveValueOrDefaultFromPost(string $key, Transformation $transformation, mixed $default = null): mixed
    {
        return $this->container->http()->wrapper()->post()->retrieve(
            $key,
            $this->container->refinery()->byTrying([
                $transformation,
                $this->container->refinery()->always($default)
            ])
        );
    }

    private function retrieveValueOrDefaultFromQuery(string $key, Transformation $transformation, mixed $default = null): mixed
    {
        return $this->container->http()->wrapper()->query()->retrieve(
            $key,
            $this->container->refinery()->byTrying([
                $transformation,
                $this->container->refinery()->always($default)
            ])
        );
    }

    public function idOrHash(object $gui, Closure $then): void
    {
        $with_doc_id = fn($document) => $then($this->willLinkWith($gui, ['doc_id' => $document->id()]), $document->content()->title(), new NumberId($document), false);
        $with_hash = fn(string $hash) => $then($this->willLinkWith($gui, ['hash' => $hash]), '', new HashId($hash), true);
        $try_hash = fn() => new Ok($with_hash($this->requireDocumentHash()));

        $this->currentDocument()
             ->map($with_doc_id)
             ->except($try_hash)
             ->value();

    }

    public function targetWithDoc(object $gui, Document $document, string $cmd, string $method = 'getLinkTarget'): string
    {
        $link = $this->willLinkWith($gui, ['doc_id' => (string) $document->id()]);
        return $link($cmd, $method);
    }

    public function targetWithDocAndCriterion(object $gui, Document $document, Criterion $criterion, string $cmd, string $method = 'getLinkTarget'): string
    {
        $link = $this->willLinkWith($gui, [
            'doc_id' => (string) $document->id(),
            'criterion_id' => (string) $criterion->id(),
        ]);

        return $link($cmd, $method);
    }

    public function willLinkWith($gui, array $parameters = []): Closure
    {
        $class = is_string($gui) ? $gui : $gui::class;
        return function (string $cmd, ?string $method = null) use ($gui, $class, $parameters): string {
            $method ??= $class === $gui ? 'getLinkTargetByClass' : 'getLinkTarget';
            $array = $this->container->ctrl()->getParameterArrayByClass($class);
            foreach ($parameters as $key => $value) {
                $this->container->ctrl()->setParameterByClass($class, (string) $key, $value);
            }
            $link = $this->container->ctrl()->$method($gui, $cmd);
            foreach ($parameters as $key => $_) {
                $this->container->ctrl()->setParameterByClass($class, (string) $key, $array[$key] ?? '');
            }

            return $link;
        };
    }

    public function withFormData(Form $form, Closure $then): Form
    {
        $request = $this->container->http()->request();
        if ($request->getMethod() !== 'POST') {
            return $form;
        }
        $form = $form->withRequest($request);
        $data = $form->getData();

        if ($data !== null) {
            $then($data);
        }

        return $form;
    }

    public function find(Closure $predicate, array $array)
    {
        foreach ($array as $value) {
            if ($predicate($value)) {
                return $value;
            }
        }

        return null;
    }

    public function currentDocument(): Result
    {
        $doc_id = $this->retrieveValueOrDefaultFromQuery(
            'doc_id',
            $this->refinery->kindlyTo()->int(),
        );

        if (!$doc_id) {
            //Try reading from UI-Table action
            $doc_id = $this->retrieveValueOrDefaultFromQuery(
                'legal_document_id',
                $this->refinery->kindlyTo()->listOf($this->refinery->kindlyTo()->int()),
                []
            );
            $doc_id = current($doc_id) ?: null;
        }

        $repo = $this->config->legalDocuments()->document()->repository();

        return $this->refinery->kindlyTo()->int()->applyTo(new Ok($doc_id))->then($repo->find(...));
    }

    public function criterionForm(string $url, Document $document, ?CriterionContent $criterion = null): Form
    {
        $groups = $this->config->legalDocuments()->document()->conditionGroups($criterion);
        $group = $this->ui->create()->input()->field()->switchableGroup($groups->choices(), $this->ui->txt('form_criterion'));
        $value = $criterion ? $criterion->type() : $groups->defaultSelection();
        if ($value) {
            $group = $group->withValue($value);
        }

        $title = $this->ui->create()->input()->field()->text($this->ui->txt('form_document'))->withValue($document->content()->title())->withDisabled(true);

        $section = $this->ui->create()->input()->field()->section([
            $title,
            'content' => $group,
        ], $this->ui->txt($criterion ? 'form_edit_criterion_head' : 'form_attach_criterion_head'));

        return $this->ui->create()->input()->container()->form()->standard($url, [$section]);
    }

    public function requireDocumentHash(): string
    {
        return $this->container->http()->wrapper()->query()->retrieve('hash', $this->container->refinery()->to()->string());
    }

    public function tabs(array $tabs, array $run_after = []): void
    {
        foreach ($tabs as $tab) {
            $this->addTab(...$tab);
            if (isset($run_after[$tab[0]])) {
                $run_after[$tab[0]]();
            }
        }
    }

    public function uploadContent(): string
    {
        $value = null;
        $upload = $this->container->upload();
        $upload->register(new PreProcessor(function (string $content) use (&$value): void {
            $value = $content;
        }));
        $upload->process();
        $result_array = $upload->getResults();
        if (count($result_array) !== 1 || !current($result_array)->isOk()) {
            throw new Exception('Unexpected upload result.');
        }

        return $value;
    }

    public function setContent($component): void
    {
        $this->ui->mainTemplate()->setContent($this->render($component));
    }

    public function addDocumentButton(string $add_document_link): Component
    {
        return $this->ui->create()->button()->primary(
            $this->ui->txt('add_document_btn_label'),
            $add_document_link
        );
    }

    public function setVariable(string $variable, $component): void
    {
        $this->ui->mainTemplate()->setVariable($variable, $this->render($component));
    }

    public function render($component): string
    {
        if (is_string($component)) {
            return $component;
        }
        return $this->container->ui()->renderer()->render($component);
    }

    public function resetBox(DateTimeImmutable $reset_date, array $buttons = []): Component
    {
        $reset_date = new ilDateTime($reset_date->getTimeStamp(), IL_CAL_UNIX);
        return $this->ui->create()
                               ->messageBox()
                               ->info(sprintf($this->ui->txt('last_reset_date'), ilDatePresentation::formatDate($reset_date)))
                               ->withButtons($buttons);
    }

    public function resetButton(string $confirm_reset_link): Button
    {
        return $this->ui->create()->button()->standard(
            $this->ui->txt('reset_for_all_users'),
            $confirm_reset_link
        );
    }

    public function documentForm(Closure $link, string $title, Closure $document_content, bool $may_be_new): Form
    {
        $edit_link = $link('editDocument');
        $content_title = $may_be_new ? 'form_document' : 'form_document_new';

        $section = $this->ui->create()->input()->field()->section([
            'title' => $this->ui->create()->input()->field()->text($this->ui->txt('title'))->withRequired(true)->withValue($title),
            'content' => $this->ui->create()->input()->field()->file(new UploadHandler($link, $document_content, $this->ui->txt(...)), $this->ui->txt($content_title))->withAcceptedMimeTypes([
                'text/html',
                'text/plain',
            ])->withRequired($may_be_new),
        ], $this->ui->txt($may_be_new ? 'form_new_doc_head' : 'form_edit_doc_head'));

        return $this->ui->create()->input()->container()->form()->standard($edit_link, [$section]);
    }

    public function saveDocumentOrder(array $documents, array $order_by_document): void
    {
        $update = $this->config->legalDocuments()->document()->repository()->updateDocumentOrder(...);

        usort($documents, fn($document, $other) => $order_by_document[$document->id()] - $order_by_document[$other->id()]);

        array_map(
            fn($document, int $order) => $update(new NumberId($document), $order),
            $documents,
            range(10, 10 * count($documents), 10)
        );
    }

    public function withDocumentsAndOrder(Closure $proc)
    {
        // kindlyTo->int() does not accept numbers of the form "01".
        $to_int = $this->container->refinery()->byTrying([
            $this->container->refinery()->kindlyTo()->int(),
            $this->container->refinery()->in()->series([
                $this->container->refinery()->to()->string(),
                $this->container->refinery()->custom()->transformation(fn($s) => ltrim($s, '0') ?: '0'),
                $this->container->refinery()->kindlyTo()->int(),
            ]),
        ]);

        $order = $this->container->http()->request()->getParsedBody();
        if (!is_array($order)) {
            throw new InvalidArgumentException('Invalid order given. List of numbers expected.');
        }

        $order = array_map($to_int, $order);
        $document_ids = array_map($to_int, array_keys($order));
        $order = array_combine($document_ids, array_values($order));

        $documents = $this->config->legalDocuments()->document()->repository()->all();

        foreach ($documents as $document) {
            if (!isset($order[$document->id()])) {
                $order[$document->id()] = $document->meta()->sorting();
            }
        }

        return $proc($documents, $order);
    }

    public function exitWithJsonResponse($value): void
    {
        // ... The content type cannot be set to application/json, because the components/ILIAS/UI/src/templates/js/Input/Field/file.js:392
        //     does not expect that the content type is correct and parses it again ...
        $this->container->http()->saveResponse($this->container->http()->response()/* ->withHeader('Content-Type', 'application/json') */->withBody(
            Streams::ofString(json_encode($value))
        ));

        $this->container->http()->sendResponse();
        $this->container->http()->close();
    }

    public function requireEditable(): void
    {
        if (!$this->config->editable()) {
            $this->container['ilErr']->raiseError($this->container->language()->txt('permission_denied'), $this->container['ilErr']->WARNING);
        }
    }

    public function externalSettingsMessage(bool $enabled): Component
    {
        $message_box = $this->ui->create()->messageBox()->info(
            $this->ui->txt('withdrawal_usr_deletion') . ': ' . $this->ui->txt($enabled ? 'enabled' : 'disabled')
        );

        if (!$this->canWriteUserAdministration()) {
            return $message_box;
        }

        return $message_box->withLinks([
            $this->ui->create()->link()->standard(
                $this->ui->txt('adm_external_setting_edit'),
                $this->willLinkWith(ilObjUserFolderGUI::class, ['ref_id' => (string) USER_FOLDER_ID])('generalSettings')
            )
        ]);
    }

    public function isInvalidHTML(string $string): bool
    {
        return !$this->isValidHTML($string);
    }

    public function isValidHTML(string $string): bool
    {
        return (new ValidHTML())->isTrue($string);
    }

    public function canReadUserAdministration(): bool
    {
        return $this->container->rbac()->system()->checkAccess('read', USER_FOLDER_ID);
    }

    private function canWriteUserAdministration(): bool
    {
        return $this->container->rbac()->system()->checkAccess('write', USER_FOLDER_ID);
    }

    private function addTab(string $id, string $text, string $link, bool $can_access = true): void
    {
        if ($can_access) {
            $this->container->tabs()->addTab($id, $text, $link);
        }
    }
}