HasDynamicInputsBase.php

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<?php

declare(strict_types=1);

namespace ILIAS\UI\Implementation\Component\Input\Field;

use ILIAS\UI\Implementation\Component\Input\DynamicInputDataIterator;
use ILIAS\UI\Implementation\Component\Input\DynamicInputsNameSource;
use ILIAS\UI\Implementation\Component\Input\NameSource;
use ILIAS\UI\Implementation\Component\Input\InputData;
use ILIAS\UI\Component\Input\Container\Form\FormInput as FormInputInterface;
use ILIAS\UI\Component\Input\Field\HasDynamicInputs;
use ILIAS\Refinery\Factory as Refinery;
use ILIAS\Data\Factory as DataFactory;
use InvalidArgumentException;
use LogicException;
use ILIAS\Language\Language;

abstract class HasDynamicInputsBase extends FormInput implements HasDynamicInputs
{
    // ==========================================
    // BEGIN IMPLEMENTATION OF DynamicInputsAware
    // ==========================================

    protected array $dynamic_inputs = [];
    protected FormInputInterface $dynamic_input_template;
    protected Language $language;

    public function __construct(
        Language $language,
        DataFactory $data_factory,
        Refinery $refinery,
        string $label,
        FormInputInterface $template,
        ?string $byline
    ) {
        parent::__construct($data_factory, $refinery, $label, $byline);
        $this->dynamic_input_template = $template;
        $this->language = $language;
    }

    public function getTemplateForDynamicInputs(): FormInputInterface
    {
        return $this->dynamic_input_template;
    }

    public function getDynamicInputs(): array
    {
        return $this->dynamic_inputs;
    }

    // ==========================================
    // END IMPLEMENTATION OF DynamicInputsAware
    // ==========================================

    // ==========================================
    // BEGIN OVERWRITTEN METHODS OF Input
    // ==========================================

    public function withValue($value): self
    {
        if (!$this->isDynamicInputsValueOk($value)) {
            throw new InvalidArgumentException("Display value does not match input(-template) type.");
        }

        $clone = clone $this;

        foreach ($value as $input_name => $input_value) {
            $clone->dynamic_inputs[$input_name] = $clone->dynamic_input_template->withValue($input_value);
        }

        return $clone;
    }

    public function withDisabled(bool $is_disabled): self
    {
        $clone = parent::withDisabled($is_disabled);
        $clone->dynamic_input_template = $clone->dynamic_input_template->withDisabled($is_disabled);

        foreach ($clone->dynamic_inputs as $key => $input) {
            $clone->dynamic_inputs[$key] = $input->withDisabled($is_disabled);
        }

        return $clone;
    }

    public function withNameFrom(NameSource $source, ?string $parent_name = null): self
    {
        $clone = parent::withNameFrom($source, $parent_name);

        $clone->dynamic_input_template = $clone->dynamic_input_template->withNameFrom(
            new DynamicInputsNameSource($clone->getName())
        );

        foreach ($clone->dynamic_inputs as $key => $input) {
            $clone->dynamic_inputs[$key] = $input->withNameFrom(
                new DynamicInputsNameSource($clone->getName())
            );
        }

        return $clone;
    }

    public function withInput(InputData $post_data): self
    {
        if (null === $this->getName()) {
            throw new LogicException(static::class . '::withNameFrom must be called first.');
        }

        $clone = clone $this;
        $contains_error = false;
        $contents = [];

        foreach ((new DynamicInputDataIterator($post_data, $clone->getName())) as $index => $input_data) {
            $clone->dynamic_inputs[$index] = $this->dynamic_input_template->withInput($input_data);
            if ($clone->dynamic_inputs[$index]->getContent()->isOk()) {
                $contents[] = $clone->dynamic_inputs[$index]->getContent()->value();
            } else {
                $contains_error = true;
            }
        }

        if ($contains_error) {
            $clone->content = $clone->data_factory->error($this->language->txt("ui_error_in_group"));
        } else {
            $clone->content = $clone->applyOperationsTo($contents);
        }

        if ($clone->content->isError()) {
            $clone = $clone->withError((string) $clone->content->error());
        }

        return $clone;
    }

    public function getValue(): array
    {
        if (null === $this->getTemplateForDynamicInputs()) {
            return parent::getValue();
        }

        $values = [];
        foreach ($this->getDynamicInputs() as $key => $input) {
            $values[$key] = $input->getValue();
        }

        return $values;
    }

    // ==========================================
    // END OVERWRITTEN METHODS OF Input
    // ==========================================

    protected function isDynamicInputsValueOk($value): bool
    {
        if (!is_array($value)) {
            return $this->dynamic_input_template->isClientSideValueOk($value);
        }

        if (empty($value)) {
            return false;
        }

        foreach ($value as $input_value) {
            if (!$this->dynamic_input_template->isClientSideValueOk($input_value)) {
                return false;
            }
        }

        return true;
    }
}