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<?php

require_once 'VersionControl/Subversion/Adapter/Interface.php';

require_once 'VersionControl/Subversion/Adapter/Svn.php';

class Skjb_VersionControl_Subversion
{
    protected $config = array(
        'adapter' => 'Skjb_VersionControl_Subversion_Adapter_Svn',
    );
    
    protected $adapter = null;
    
    public function __construct($config = null)
    {
        if ($config !== null) {
            $this->setConfig($config);
        }
    }
    
    public function setConfig($config = array())
    {
        if ($config instanceof Zend_Config) {
            $config = $config->toArray();

        } elseif (! is_array($config)) {
            throw new Exception('Array or Zend_Config object expected, got ' . gettype($config));
        }

        foreach ($config as $k => $v) {
            $this->config[strtolower($k)] = $v;
        }

        // Pass configuration options to the adapter if it exists
        if ($this->adapter instanceof Skjb_VersionControl_Subversion_Adapter_Interface) {
            $this->adapter->setConfig($config);
        }

        return $this;
    }

    public function setAdapter($adapter)
    {
        if (is_string($adapter)) {
            $adapter = new $adapter;
        }

        if (! $adapter instanceof Skjb_VersionControl_Subversion_Adapter_Interface) {
            throw new Exception('Passed adapter is not a Subversion connection adapter');
        }

        $this->adapter = $adapter;
        $config = $this->config;
        unset($config['adapter']);
        $this->adapter->setConfig($config);
    }
    
    public function getLatestRevision()
    {
        return $this->getAdapter()->getLatestRev();
    }
    
    public function revisionPropertyList($revision)
    {
        return $this->getAdapter()->revPropList($revision);
    }
    
    public function getAdapter()
    {
        if ($this->adapter == null) {
            $this->setAdapter($this->config['adapter']);
        }
        
        return $this->adapter;
    }
}