<?php
namespace nur\sery\wip\php\access;

use nur\sery\cl;

abstract class AbstractAccess implements IAccess {
  function available($src): bool {
    return $this->exists($src) && $this->get($src) !== false;
  }

  function inc(&$dest): int {
    $value = (int)$this->get($dest);
    $this->set(++$value, $dest);
    return $value;
  }

  function dec(&$dest, bool $allowNegative=false): int {
    $value = (int)$this->get($dest);
    if ($allowNegative || $value > 0) {
      $this->set(--$value, $dest);
    }
    return $value;
  }

  function merge($values, &$dest): void {
    $array = $this->get($dest);
    $array = cl::merge($array, $values);
    $this->set($array, $dest);
  }

  function append($value, &$dest, $key=null): void {
    $array = $this->get($dest);
    cl::set($array, $key, $value);
    $this->set($array, $dest);
  }
}