<?php
class fieldCfs {
	public $name = '';
	public $html = '';
	public $type = '';
	public $default = '';
	public $value = '';
	public $label = '';
	public $maxlen = 0;
	public $id = 0;
	public $htmlParams = array();
	public $validate = array();
	public $description = '';
	/**
	 * Wheter or not add error html element right after input field
	 * if bool - will be added standard element
	 * if string - it will be add this string
	 */
	public $errorEl = false;
	/**
	 * Name of method in table object to prepare data before insert / update operations
	 */
	public $adapt = array('htmlCfs' => '', 'dbFrom' => '', 'dbTo' => '');
	/**
	 * Init database field representation
	 * @param string $html html type of field (text, textarea, etc. @see html class)
	 * @param string $type database type (int, varcahr, etc.)
	 * @param mixed $default default value for this field
	 */
	public function __construct($name, $html = 'text', $type = 'other', $default = '', $label = '', $maxlen = 0, $adaption = array(), $validate = '', $description = '') {
		$this->name = $name;
		$this->html = $html;
		$this->type = $type;
		$this->default = $default;
		$this->value = $default;    //Init field value same as default
		$this->label = $label;
		$this->maxlen = $maxlen;
		$this->description = $description;
		if($adaption)
			$this->adapt = $adaption;
		if($validate) {
			$this->setValidation($validate);
		}
		if($type == 'varchar' && !empty($maxlen) && !in_array('validLen', $this->validate)) {
			$this->addValidation('validLen');
		}
	}
	/**
	 * @param mixed $errorEl - if bool and "true" - than we will use standard error element, if string - we will use this string as error element
	 */
	public function setErrorEl($errorEl) {
		$this->errorEl = $errorEl;
	}
	public function getErrorEl() {
		return $this->errorEl;
	}
	public function setValidation($validate) {
		if(is_array($validate))
			$this->validate = $validate;
		else {
			if(strpos($validate, ','))
				$this->validate = array_map('trim', explode(',', $validate));
			else
				$this->validate = array(trim($validate));
		}
	}
	public function addValidation($validate) {
		$this->validate[] = $validate;
	}
	/**
	 * Set $value property. 
	 * Sure - it is public and can be set directly, but it can be more 
	 * comfortable to use this method in future
	 * @param mixed $value value to be set
	 */
	public function setValue($value, $fromDB = false) {
		if(isset($this->adapt['dbFrom']) && $this->adapt['dbFrom'] && $fromDB)
			$value = fieldAdapterCfs::_($value, $this->adapt['dbFrom'], fieldAdapterCfs::DB);
		$this->value = $value;
	}
	public function setLabel($label) {
		$this->label = $label;
	}
	public function setHtml($html) {
		$this->html = $html;
	}
	public function getHtml() {
		return $this->html;
	}
	public function setName($name) {
		$this->name = $name;
	}
	public function getName() {
		return $this->name;
	}
	public function getValue() {
		return $this->value;
	}
	public function getLabel() {
		return $this->label;
	}
	public function setID($id) {
		$this->id = $id;
	}
	public function getID() {
		return $this->id;
	}
	public function setAdapt($adapt) {
		$this->adapt = $adapt;
	}
	public function drawHtml($tag, $id) {
		if(method_exists('htmlCfs', $this->html)) {
			$method = $this->html;
			//echo $this->name. ': '. $this->value. '<br />';
			if(!empty($this->value))
				$this->htmlParams['value'] = $this->value;
			if ($method == 'checkbox') {
				if ($this->value == 1) {
					$this->htmlParams['checked'] = 1;
				}
			}
			if($this->adapt['html']) {
				fieldAdapterCfs::_($this, $this->adapt['html'], fieldAdapterCfs::HTML);
			}
			$params = $this->processParams($tag, $id);
			if ($params != '')
				return $params;
			if ($this->name == 'default_value') {
				$optionsFromDb = frameCfs::_()->getModule('optionsCfs')->getHelper()->getOptions($id);
				if (!empty($optionsFromDb)) {
					$options = array(0 => __('Select', CFS_LANG_CODE));
					foreach($optionsFromDb as $k => $v)
						$options[$k] = $v;
					$method = 'selectbox';
					$this->htmlParams['optionsCfs'] = $options;
				}
			}
			$htmlContent = htmlCfs::$method($this->name, $this->htmlParams);
			if(!empty($this->errorEl)) {
				if(is_bool($this->errorEl))
					$errorEl = '<div class="toeErrorForField toe_'. htmlCfs::nameToClassId($this->name). '"></div>';
				else    //if it is string
					$errorEl = $this->errorEl;
				$htmlContent .= $errorEl;
			}
			return $htmlContent;
		}
		return false;
	}
	public function displayValue() {
		$value = '';
		switch($this->html) {
			case 'countryList':
				$value = fieldAdapterCfs::displayCountry($this->value);
				break;
			case 'statesList':
				$value = fieldAdapterCfs::displayState($this->value);
				break;
			case 'checkboxlist':
				$options = $this->getHtmlParam('optionsCfs');
				$value = array();
				if(!empty($options) && is_array($options)) {
					foreach($options as $opt) {
						if(isset($opt['checked']) && $opt['checked']) {
							$value[] = $opt['text'];
						}
					}
				}
				if(empty($value))
					$value = __('N/A', CFS_LANG_CODE);
				else
					$value = implode('<br />', $value);
				break;
			case 'selectbox': case 'radiobuttons':
				$options = $this->getHtmlParam('optionsCfs');
				if(!empty($options) && !empty($options[ $this->value ])) {
					$value = $options[ $this->value ];
				} else {
					$value = __('N/A', CFS_LANG_CODE);
				}
				break;
			default:
				if ($this->value == '') {
					$value = __('N/A', CFS_LANG_CODE);
				} else {
					if(is_array($this->value)) {
						$options = $this->getHtmlParam('optionsCfs');
						if(!empty($options) && is_array($options)) {
							$valArr = array();
							foreach($this->value as $v) {
								$valArr[] = $options[$v];
							}
							$value = recImplode('<br />', $valArr);
						} else {
							$value = recImplode('<br />', $this->value);
						}
					} else
						$value = $this->value;
				}
				break;
		}
		if($echo)
			echo $value;
		else
			return $value;
	}
	public function showValue() {
		echo $this->displayValue();
	}
	public function display($tag = 1, $id = 0) {
		echo $this->drawHtml($tag, $id);
	}
	public function addHtmlParam($name, $value) {
		$this->htmlParams[$name] = $value;
	}
	/**
	 * Alias for addHtmlParam();
	 */
	public function setHtmlParam($name, $value) {
		$this->addHtmlParam($name, $value);
	}
	public function setHtmlParams($params) {
		$this->htmlParams = $params;
	}
	public function getHtmlParam($name) {
		return isset($this->htmlParams[$name]) ? $this->htmlParams[$name] : false;
	}
	/**
	 * Function to display userfields in front-end
	 * 
	 * @param string $name
	 * @param mixed $fieldValue
	 * @return string 
	 */
	public function viewField($name, $fieldValue = '') {
		$method = $this->html;
		$options = frameCfs::_()->getModule('optionsCfs')->getHelper()->getOptions($this->id);
		$attrs = '';
		if (is_object($this->htmlParams['attr']) && count($this->htmlParams['attr']) > 0) {
			foreach ($this->htmlParams['attr'] as $attribute=>$value) {
				if ($value != '') {
					$attrs .= $attribute.'="'.$value.'" ';
				}
			}
		}
		if ($fieldValue == $this->default_value) {
			$checked = 1;
		} else {
			$checked = 0;
		}
		if ($fieldValue == '') {
			$fieldValue = $this->default_value;
		}
		$params = array('optionsCfs'=>$options, 'attrs' => $attrs, 'value' => $fieldValue, 'checked' => $checked);
		$output = '';
		if(method_exists('htmlCfs', $method)) {
			$output .= htmlCfs::$method($name, $params);
			$output .= htmlCfs::hidden('extra_field['.$this->name.']',array('value'=>$this->id));
		}
		return $output;
	}

	/**
	 * Function to process field params
	 */
	public function processParams($tag, $id){
		return '';
		if ($this->name == "params") {
			if(is_array($this->value) || is_object($this->value)) {
				$params = $this->value;
			} else {
				$params = json_decode($this->value);
			}
			$add_option = '';
			switch ($tag) {
				case 5: 
					$add_option = __('Add Checkbox', CFS_LANG_CODE);
					$options_tag = '';
					$image_tag = ' style="display:none"';
				break;
				case 9: 
					$add_option = __('Add Item', CFS_LANG_CODE);
					$options_tag = '';
					$image_tag = ' style="display:none"';
				break;
				case 12:
					$add_option = __('Add Item', CFS_LANG_CODE);
					$options_tag = '';
					$image_tag = ' style="display:none"';
				break;
				case 10:
					$options_tag = '';
					$add_option = __('Add Radio Button', CFS_LANG_CODE);
					$image_tag = ' style="display:none"';
				break;
				case 8:
					$image_tag = '';
					$options_tag = ' style="display:none"';
				break;
				default:
					$options_tag = ' style="display:none"';
					$image_tag = ' style="display:none"';
					break;
			}
			if ($tag > 0 || $id == 0) {
				$output .= '<div class="options options_tag"'.$options_tag.'>';
					$output .= '<span class="add_option">'.$add_option.'</span>';
					$output .= fieldAdapterCfs::_($id,'getExtraFieldOptions',fieldAdapterCfs::STR);
				$output .= '</div>';

				$output .= '<div class="options image_tag"'.$image_tag.'>'.__('Dimensions', CFS_LANG_CODE).':<br />';
					$params->width?$width = $params->width:'';
					$params->height?$height = $params->height:'';
					$output .= __('width', CFS_LANG_CODE).':<br />';
					$output .= htmlCfs::text('params[width]',array('value'=>$width)).'<br />';
					$output .= __('height', CFS_LANG_CODE).':<br />';
					$output .= htmlCfs::text('params[height]',array('value'=>$height)).'<br />';
				$output .= '</div>';
			}
			if($this->adapt['htmlParams']) {
				$output .= fieldAdapterCfs::_($this, $this->adapt['htmlParams'], fieldAdapterCfs::STR);
			} else {
				$output .= '<a href="javascript:void(0);" class="set_properties">'.__('Click to set field "id" and "class"', CFS_LANG_CODE).'</a>';
				$output .= '<div class="attributes" style="display:none;">'.__('Attributes', CFS_LANG_CODE).':<br />';
				$output .= fieldAdapterCfs::_($params,'getFieldAttributes',  fieldAdapterCfs::STR);
				$output .= '</div>';
			}
			return $output;
		}
	}

	/**
	 * Check if the element exists in array
	 * @param array $param 
	 */
	function checkVarFromParam($param, $element) {
		return utilsCfs::xmlAttrToStr($param, $element);
		/*if (isset($param[$element])) {
			// convert object element to string
			return (string)$param[$element];
		} else {
			return '';
		}*/
	}

	/**
	 * Prepares configuration options
	 * 
	 * @param file $xml
	 * @return array $config_params 
	 */
	public function prepareConfigOptions($xml) {
	  // load xml structure of parameters
	   $config = simplexml_load_file($xml);           
	   $config_params = array();
	   foreach ($config->params->param as $param) {
		 // read the variables
		  $name = $this->checkVarFromParam($param,'name');
		  $type = $this->checkVarFromParam($param,'type');
		  $label = $this->checkVarFromParam($param,'label');
		  $helper = $this->checkVarFromParam($param,'helperCfs');
		  $module = $this->checkVarFromParam($param,'moduleCfs');
		  $values = $this->checkVarFromParam($param,'values');
		  $default = $this->checkVarFromParam($param,'default');
		  $description = $this->checkVarFromParam($param,'description');
		  if ($name == '') continue;
		// fill in the variables to configuration array
		  $config_params[$name] = array('type'=>$type,
										'label'=>$label,
										'helperCfs'=>$helper,
										'moduleCfs'=>$module,
										'values'=>$values,
										'default'=>$default,
										'description'=>$description,
										);
	   }
	   return $config_params;
	}
	public function setDescription($desc) {
		$this->description = $desc;
	}
	public function getDescription() {
		return $this->description;
	}
	 /**
	 * Displays the config options for given module
	 * 
	 * @param string $module 
	 * @param array $addDefaultOptions - if you want to add some additionsl options - specify it here
	 */
	public function drawConfig($module, $additionalOptions = array()) {
		if(!frameCfs::_()->getModule($module)) 
			return false; 
		// check for xml file with params structure  
	   if(frameCfs::_()->getModule($module)->isExternal())
		   $config_xml = frameCfs::_()->getModule($module)->getModDir(). 'mod.xml';
	   else
		   $config_xml = CFS_MODULES_DIR.$module.DS.'mod.xml';

	   if (!file_exists($config_xml)) {
		   // if there is no configuration file for this $module
		   return __('There are no configuration options for this module', CFS_LANG_CODE);
	   }
	   $output = '';
	   // reading params structure
	   $configOptions = $this->prepareConfigOptions($config_xml);
	   // reading params from database
	   //bugodel2nia..............
	   if(is_string($this->value))
			$params = Utils::jsonDecode($this->value);
	   elseif(is_object($this->value) || is_array($this->value))
			$params = toeObjectToArray($this->value);
	   //if (!empty($params)) {
	   if (!empty($configOptions)){
		   $i = 0;
		   if (empty($params)) {
			   $params = array('0'=>array());
		   }
		   if(is_array($additionalOptions) && !empty($additionalOptions)) {
			   $configOptions = array_merge($configOptions, $additionalOptions);
		   }
		   foreach ($params as $param) {
			   $output .= '<div class="module_options">';
			   foreach ($configOptions as $key=>$value){
				  $fieldValue = '';
				  $output .= '<div class="module_option">';
				  $method = $configOptions[$key]['type'];
				  $name = 'params['.$i.']['.$key.']';
				  $options = array();
				  // if the values attribute is set
				  if ($configOptions[$key]['values'] != ''){
					  $extract_options = explode(',', $configOptions[$key]['values']);
					  if (count($extract_options) > 1) {
						  foreach ($extract_options as $item=>$string) {
							  if(strpos($string, '=>')) {
								  $keyVal = array_map('trim', explode('=>', $string));
								  $options[ $keyVal[0] ] = $keyVal[1];
							  } else {
									$options[$string] = $string;    
							  }
						  }
					  } else {
						  $fieldValue = $configOptions[$key]['default'];
					  }
				  // if helper is needed to render the object
				  } elseif ($configOptions[$key]['helper'] != '') {
					  $helper_name = $configOptions[$key]['helper'];
					  // is helper from current module or other?
					  if ($configOptions[$key]['module'] != '') {
						  $hmodule = $configOptions[$key]['module'];
					  } else {
						  $hmodule = $module;
					  }
					  // calling the helper class
					  $helper = frameCfs::_()->getModule($hmodule)->getHelper();
					  if ($helper) {
						  // calling the helper method for current option
						  if (method_exists($helper, $helper_name))
							$options = $helper->$helper_name();
					  }
				  } 
					if (isset($param[$key])) {
						$fieldValue = $param[$key];
					} else {
						if ($fieldValue == '')
							$fieldValue = $configOptions[$key]['default']; 
					}
				  // filling the parameters to build html element
					 $htmlParams = array('value'=>$fieldValue,'optionsCfs'=>$options);
					 if($method == 'checkbox') {
						 $htmlParams['value'] = 1;
						 $htmlParams['checked'] = (bool)$fieldValue;
					 }
					 if(!empty($configOptions[$key]['htmlParams']) && is_array($configOptions[$key]['htmlParams'])) {
						 $htmlParams = array_merge($htmlParams, $configOptions[$key]['htmlParams']);
					 }
				  // output label and html element
					 $output .= '<label>'.__($configOptions[$key]['label']);
					 if ($configOptions[$key]['description'] != '') {
						 $output .= '<a class="toeOptTip" tip="'.__($configOptions[$key]['description']).'"></a>';
					 }
					 $output .= '</label><br />';
					 $output .= htmlCfs::$method($name,$htmlParams).'<br />';
					 $output .= '</div>';
			   }
			   $i++;
			 $output .= '</div>';
		   }
	   }
	   return $output;
	}

	public function displayConfig($module) {
	   echo $this->drawConfig($module);
	}
	/**
	 * This method will prepare internal value to it's type
	 * @see $this->type
	 * @return mixed - prepared value on the basis of $this->type
	 */
	public function valToType() {
		switch($this->type) {
			case 'int':
			case 'mediumint':
			case 'smallint':
				$this->value = (int) $this->value;
				break;
			case 'float':
				$this->value = (float) $this->value;
				break;
			case 'double':
			case 'decimal':
				$this->value = (double) $this->value;
				break;
		}
		return $this->type;
	}
}
