<?php

namespace Item;

use Core\ConversionHelper;
use Core\Db;

class DataModel
{
    private array $data = [];

    public function __construct(int $itemId)
    {
        $datastring = Db::getValue('select data from items_main_data where items_id = ?', [$itemId]);
        if (empty($datastring)) {
            return;
        }
        $this->data = ConversionHelper::dataStringToArray($datastring);
    }

    public function getAll(): array
    {
        return $this->data;
    }

    public function getRequirements(): array
    {
        return $this->getPrefixed('tr_');
    }

    private function getPrefixed(string $prefix): array
    {
        $result = [];
        foreach ($this->data as $k => $v) {
            if ($this->searchByPrefix($prefix, $k)) {
                $result[str_replace($prefix, '', $k)] = $v;
            }
        }
        return $result;
    }

    private function searchByPrefix(string $prefix, string $string): bool
    {
        return substr($string, 0, strlen($prefix)) === $prefix;
    }

    public function getBonuses(): array
    {
        return $this->getPrefixed('add_');
    }

    public function getProperties(): array
    {
        return $this->getPrefixed('sv_');
    }
}