<?php
/**
* Config.php - Jaxon config manager
*
* Read and set Jaxon config options.
*
* @package jaxon-core
* @author Thierry Feuzeu <thierry.feuzeu@gmail.com>
* @copyright 2016 Thierry Feuzeu <thierry.feuzeu@gmail.com>
* @license https://opensource.org/licenses/BSD-3-Clause BSD 3-Clause License
* @link https://github.com/jaxon-php/jaxon-core
*/
namespace Jaxon\Utils\Config;
class Config
{
/**
* The config options
*
* @var array
*/
protected $aOptions = [];
/**
* The constructor
*
* @param array $aOptions The options array
* @param string $sKeys The keys of the options in the array
*/
public function __construct(array $aOptions = [], $sKeys = '')
{
if(count($aOptions) > 0)
{
$this->setOptions($aOptions, $sKeys);
}
}
/**
* Set the value of a config option
*
* @param string $sName The option name
* @param mixed $xValue The option value
*
* @return void
*/
public function setOption($sName, $xValue)
{
$this->aOptions[$sName] = $xValue;
}
/**
* Recursively set Jaxon options from a data array
*
* @param array $aOptions The options array
* @param string $sPrefix The prefix for option names
* @param integer $nDepth The depth from the first call
*
* @return void
*/
private function _setOptions(array $aOptions, $sPrefix = '', $nDepth = 0)
{
$sPrefix = trim((string)$sPrefix);
$nDepth = intval($nDepth);
// Check the max depth
if($nDepth < 0 || $nDepth > 9)
{
throw new \Jaxon\Utils\Config\Exception\Data(jaxon_trans('errors.data.depth',
['key' => $sPrefix, 'depth' => $nDepth]));
}
foreach($aOptions as $sName => $xOption)
{
if(is_int($sName))
{
continue;
}
$sName = trim($sName);
$sFullName = ($sPrefix) ? $sPrefix . '.' . $sName : $sName;
// Save the value of this option
$this->aOptions[$sFullName] = $xOption;
// Save the values of its sub-options
if(is_array($xOption))
{
// Recursively read the options in the array
$this->_setOptions($xOption, $sFullName, $nDepth + 1);
}
}
}
/**
* Set the values of an array of config options
*
* @param array $aOptions The options array
* @param string $sKeys The keys of the options in the array
*
* @return Config
*/
public function setOptions(array $aOptions, $sKeys = '')
{
// Find the config array in the input data
$aKeys = explode('.', (string)$sKeys);
foreach($aKeys as $sKey)
{
if(($sKey))
{
if(!array_key_exists($sKey, $aOptions) || !is_array($aOptions[$sKey]))
{
return $this;
}
$aOptions = $aOptions[$sKey];
}
}
$this->_setOptions($aOptions);
return $this;
}
/**
* Get the value of a config option
*
* @param string $sName The option name
* @param mixed $xDefault The default value, to be returned if the option is not defined
*
* @return mixed The option value, or its default value
*/
public function getOption($sName, $xDefault = null)
{
return (array_key_exists($sName, $this->aOptions) ? $this->aOptions[$sName] : $xDefault);
}
/**
* Check the presence of a config option
*
* @param string $sName The option name
*
* @return bool True if the option exists, and false if not
*/
public function hasOption($sName)
{
return array_key_exists($sName, $this->aOptions);
}
/**
* Get the names of the options matching a given prefix
*
* @param string $sPrefix The prefix to match
*
* @return array The options matching the prefix
*/
public function getOptionNames($sPrefix)
{
$sPrefix = trim((string)$sPrefix);
$sPrefix = rtrim($sPrefix, '.') . '.';
$sPrefixLen = strlen($sPrefix);
$aOptions = [];
foreach($this->aOptions as $sName => $xValue)
{
if(substr($sName, 0, $sPrefixLen) == $sPrefix)
{
$iNextDotPos = strpos($sName, '.', $sPrefixLen);
$sOptionName = $iNextDotPos === false ?
substr($sName, $sPrefixLen) :
substr($sName, $sPrefixLen, $iNextDotPos - $sPrefixLen);
$aOptions[$sOptionName] = $sPrefix . $sOptionName;
}
}
return $aOptions;
}
}
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