LSTOCBuilder.php

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<?php
 
declare(strict_types=1);
 
use ILIAS\KioskMode\TOCBuilder;
 
class LSTOCBuilder implements TOCBuilder
{
    protected array $structure;
 
    protected $parent;
 
    protected ?string $command;
 
    public function __construct($parent, string $command, string $label = '', ?int $parameter = null, $state = null)
    {
        $this->structure = [
            'label' => $label,
            'command' => $command,
            'parameter' => $parameter,
            'state' => $state,
            'childs' => []
        ];
        $this->parent = $parent;
        $this->command = $command;
    }
 
    public function toJSON(): string
    {
        return json_encode($this->structure);
    }
 
    public function end()
    {
        if ($this->parent instanceof LSTOCBuilder) {
            $this->parent->structure['childs'][] = $this->structure;
        }
        return $this->parent;
    }
 
    public function node(string $label, ?int $parameter = null, ?int $lp = null): TOCBuilder
    {
        //build node
        $toc = new LSTOCBuilder($this, $this->command, $label, $parameter, $lp);
        return $toc;
    }
 
    public function item(string $label, int $parameter, $state = null, bool $current = false): TOCBuilder
    {
        $item = [
            'label' => $label,
            'command' => $this->command,
            'parameter' => $parameter,
            'state' => $state,
            'current' => $current
        ];
        $this->structure['childs'][] = $item;
        return $this;
    }
}