<?php

/**
 * Dumps values of the given variable, or the entire data if nothing provided
 * <pre>
 * * var : the variable to display
 * * show_methods : if set to true, the public methods of any object encountered are also displayed
 * </pre>
 * This software is provided 'as-is', without any express or implied warranty.
 * In no event will the authors be held liable for any damages arising from the use of this software.
 *
 * @author	Jordi Boggiano <j.boggiano@seld.be>
 * @copyright Copyright (c) 2008, Jordi Boggiano
 * @license	http://dwoo.org/LICENSE Modified BSD License
 * @link	http://dwoo.org/
 * @version	1.0.0
 * @date	2008-10-23
 * @package	Dwoo
 */
class Dwoo_Plugin_dump extends Dwoo_Plugin
{
	protected $outputObjects;
	protected $outputMethods;

	public function process($var = '$', $show_methods = false)
	{
		$this->outputMethods = $show_methods;
		if ($var === '$') {
			$var = $this->dwoo->getData();
			$out = '<div style="background:#aaa; padding:5px; margin:5px; color:#000;">data';
		} else {
			$out = '<div style="background:#aaa; padding:5px; margin:5px; color:#000;">dump';
		}

		$this->outputObjects = array();

		if (!is_array($var)) {
			if (is_object($var)) {
				return $this->exportObj('', $var);
			} else {
				return $this->exportVar('', $var);
			}
		}

		$scope = $this->dwoo->getScope();

		if ($var === $scope) {
			$out .= ' (current scope): <div style="background:#ccc;">';
		} else {
			$out .= ':<div style="padding-left:20px;">';
		}

		$out .= $this->export($var, $scope);

		return $out .'</div></div>';
	}

	protected function export($var, $scope)
	{
		$out = '';
		foreach ($var as $i=>$v) {
			if (is_array($v) || (is_object($v) && $v instanceof Iterator)) {
				$out .= $i.' ('.(is_array($v) ? 'array':'object: '.get_class($v)).')';
				if ($v===$scope) {
					$out .= ' (current scope):<div style="background:#ccc;padding-left:20px;">'.$this->export($v, $scope).'</div>';
				} else {
					$out .= ':<div style="padding-left:20px;">'.$this->export($v, $scope).'</div>';
				}
			} elseif (is_object($v)) {
				$out .= $this->exportObj($i.' (object: '.get_class($v).'):', $v);
			} else {
				$out .= $this->exportVar($i.' = ', $v);
			}
		}
		return $out;
	}

	protected function exportVar($i, $v)
	{
		if (is_string($v) || is_bool($v) || is_numeric($v)) {
			return $i.htmlentities(var_export($v, true)).'<br />';
		} elseif (is_null($v)) {
			return $i.'null<br />';
		} elseif (is_resource($v)) {
			return $i.'resource('.get_resource_type($v).')<br />';
		} else {
			return $i.htmlentities(var_export($v, true)).'<br />';
		}
	}

	protected function exportObj($i, $obj)
	{
		if (array_search($obj, $this->outputObjects, true) !== false) {
			return $i . ' [recursion, skipped]<br />';
		}

		$this->outputObjects[] = $obj;

		$list = (array) $obj;

		$protectedLength = strlen(get_class($obj)) + 2;

		$out = array();

		if ($this->outputMethods) {
			$ref = new ReflectionObject($obj);

			foreach ($ref->getMethods() as $method) {
				if (!$method->isPublic()) {
					continue;
				}

				if (empty($out['method'])) {
					$out['method'] = '';
				}

				$params = array();
				foreach ($method->getParameters() as $param) {
					$params[] = ($param->isPassedByReference() ? '&':'') . '$'.$param->getName() . ($param->isOptional() ? ' = '.var_export($param->getDefaultValue(), true) : '');
				}

				$out['method'] .= '(method) ' . $method->getName() .'('.implode(', ', $params).')<br />';
			}
		}

		foreach ($list as $attributeName => $attributeValue) {
			if(property_exists($obj, $attributeName)) {
				$key = 'public';
			} elseif(substr($attributeName, 0, 3) === "\0*\0") {
				$key = 'protected';
				$attributeName = substr($attributeName, 3);
			} else {
				$key = 'private';
				$attributeName = substr($attributeName, $protectedLength);
			}

			if (empty($out[$key])) {
				$out[$key] = '';
			}

			$out[$key] .= '('.$key.') ';

			if (is_array($attributeValue)) {
				$out[$key] .= $attributeName.' (array):<br />
							<div style="padding-left:20px;">'.$this->export($attributeValue, false).'</div>';
			} elseif (is_object($attributeValue)) {
				$out[$key] .= $this->exportObj($attributeName.' (object: '.get_class($attributeValue).'):', $attributeValue);
			} else {
				$out[$key] .= $this->exportVar($attributeName.' = ', $attributeValue);
			}
		}

		$return = $i . '<br /><div style="padding-left:20px;">';

		if (!empty($out['method'])) {
			$return .= $out['method'];
		}

		if (!empty($out['public'])) {
			$return .= $out['public'];
		}

		if (!empty($out['protected'])) {
			$return .= $out['protected'];
		}

		if (!empty($out['private'])) {
			$return .= $out['private'];
		}

		return $return . '</div>';
	}
}