<?php

namespace Luticate\Utils\Dbo;

class LuPaginatedDbo extends LuDbo {

    /**
     * @var int
     */
    private $_count;
    public function setCount($count)
    {
        $this->_count = $count;
    }
    public function getCount()
    {
        return $this->_count;
    }

    /**
     * @var array
     */
    private $_data;
    public function setData($data)
    {
        $this->_data = $data;
    }
    public function getData()
    {
        return $this->_data;
    }

    function jsonSerialize()
    {
        return array(
            "Count" => $this->_count,
            "Data" => LuDbo::serializeValue($this->_data)
        );
    }

    function __construct($count = 0, $data = array())
    {
        $this->_count = $count;
        $this->_data = $data;
    }

    function map(callable $callback)
    {
        $values = [];
        foreach ($this->_data as $data) {
            $values[] = $callback($data);
        }
        return new static($this->_count, $values);
    }
    
    public static function jsonDeserialize($json)
    {
        return new static($json["Count"], $json["Data"]);
    }

    public static function generateSample()
    {
        return [
            "Count" => 42,
            "Data" => []
        ];
    }
}