<?php

class ConfigurationTagProcessor extends kDBTagProcessor {
	
	
	function Init($prefix,$special,$event_params=null)
	{
		parent::Init($prefix, $special, $event_params);
		$this->Application->LinkVar('module_key');
	}
	
	/**
	 * Prints list content using block specified
	 *
	 * @param Array $params
	 * @return string
	 * @access public
	 */
	function PrintList($params)
	{
		$list =& $this->GetList($params);
		$id_field = $this->Application->getUnitOption($this->Prefix,'IDField');

		$list->Query();
		$o = '';
		$list->GoFirst();

		$block_params=$this->prepareTagParams($params);
//		$block_params['name'] = $this->SelectParam($params, 'render_as,block');
		$block_params['pass_params'] = 'true';
		$block_params['IdField'] = $list->IDField;
		
		$prev_heading = '';
		$next_block = $params['full_block'];
		$this->groupRecords($list->Records, 'heading');
		$field_values = $this->Application->GetVar($this->getPrefixSpecial(true));
				
		while (!$list->EOL())
		{
			$this->Application->SetVar( $this->getPrefixSpecial().'_id', $list->GetDBField($id_field) ); // for edit/delete links using GET
			
			// using 2 blocks for drawing o row in case if current & next record titles match
			$next_item_prompt = $list->CurrentIndex + 1 < $list->RecordsCount ? $list->Records[$list->CurrentIndex + 1]['prompt'] : '';
			$this_item_prompt = $list->GetDBField('prompt');
	
			if ($next_item_prompt == $this_item_prompt) {
				$curr_block = $params['half_block1'];
				$next_block = $params['half_block2'];
			} else {
				$curr_block = $next_block;
				$next_block = $params['full_block'];
			}
		
			$block_params['name'] = $curr_block;
			
			$block_params['show_heading'] = ($prev_heading != $list->GetDBField('heading') ) ? 1 : 0;
			
			// set values from submit if any
			if ($field_values) {
				$list->SetDBField('VariableValue', $field_values[$list->GetDBField('VariableName')]['VariableValue']);
			}
			
			$o.= $this->Application->ParseBlock($block_params, 1);
			$prev_heading = $list->GetDBField('heading');
			$list->GoNext();
		}
		
		$this->Application->RemoveVar('ModuleRootCategory');
		$this->Application->SetVar( $this->getPrefixSpecial().'_id', '');
		return $o;
	}
	
	function getModuleItemName()
	{
		$module = $this->Application->GetVar('module');
		$table = $this->Application->getUnitOption('confs', 'TableName');
		
		$sql = 'SELECT ConfigHeader
				FROM '.$table.'
				WHERE ModuleName = '.$this->Conn->qstr($module);
		return $this->Conn->GetOne($sql);
	}
	
	function PrintConfList($params)
	{
		$list =& $this->GetList($params);
		$id_field = $this->Application->getUnitOption($this->Prefix, 'IDField');
		
		$list->PerPage = -1;
		$list->Query();
		$o = '';
		$list->GoFirst();	
		
		$tmp_row = Array();
		
		while (!$list->EOL()) {
			$rec = $list->getCurrentRecord();
			$tmp_row[0][$rec['VariableName']] = $rec['VariableValue'];
			$tmp_row[0][$rec['VariableName'].'_prompt'] = $rec['prompt'];
			$list->GoNext();
		}
		
		$list->Records = $tmp_row;
		
		$block_params = $this->prepareTagParams($params);
		$block_params['name'] = $this->SelectParam($params, 'render_as,block');
		$block_params['module_key'] = $this->Application->GetVar('module_key');
		$block_params['module_item'] = $this->getModuleItemName();
		$list->GoFirst();
		
		return $this->Application->ParseBlock($block_params, 1);
		
	}
	
	function ShowRelevance($params)
	{
		return $this->Application->GetVar('module_key') != '_';
	}
	
	function ConfigValue($params)
	{
		return $this->Application->ConfigValue($params['name']);
	}
	
	function Error($params)
	{
		$object =& $this->Application->recallObject( $this->getPrefixSpecial() );
		$field = $object->GetDBField($params['id_field']);
		
		$errors = $this->Application->GetVar('errormsgs');
		$errors = $errors[$this->getPrefixSpecial()];
		
		if (isset($errors[$field])) {
			$msg = $this->Application->Phrase($errors[$field]);
		}
		else {
			$msg = '';
		}
				
		return $msg;
	}
	
	/**
	 * Allows to show category path of selected module
	 *
	 * @param Array $params
	 * @return string
	 */
	function CategoryPath($params)
	{
		$block_params['separator'] = $params['separator'];

		if (!isset($params['cat_id'])) {
			$params['cat_id'] = $this->ModuleRootCategory( Array() );
		}

		if ($params['cat_id'] == 0) {
			$block_params['cat_id'] = 0;
			$block_params['cat_name'] = $this->Application->ProcessParsedTag('m', 'RootCategoryName', $params);
			$block_params['name'] = $this->SelectParam($params, 'root_cat_render_as,block_root_cat,rootcatblock,render_as');
			return $this->Application->ParseBlock($block_params);
		}
		else {
			$ml_formatter =& $this->Application->recallObject('kMultiLanguage');
			$navbar_field = $ml_formatter->LangFieldName('CachedNavBar');
			
			$id_field = $this->Application->getUnitOption('c', 'IDField');
			$table_name = $this->Application->getUnitOption('c', 'TableName');
			$sql = 'SELECT '.$navbar_field.', ParentPath
					FROM '.$table_name.'
					WHERE '.$id_field.' = '.$params['cat_id'];
			$category_data = $this->Conn->GetRow($sql);
			$ret = '';
			if ($category_data) {
				$category_names = explode('|', $category_data[$navbar_field]);
				$category_ids = explode('|', substr($category_data['ParentPath'], 1, -1));
				
				// add "Home" category at beginning of path
				array_unshift($category_names, $this->Application->ProcessParsedTag('m', 'RootCategoryName', $params));
				array_unshift($category_ids, 0);
				
				foreach ($category_ids as $category_pos => $category_id) {
					$block_params['cat_id'] = $category_id;
					$block_params['cat_name'] = $category_names[$category_pos];
					$block_params['name'] = $this->SelectParam($params, 'render_as,block');
					
					$this->Application->SetVar($this->Prefix.'_id', $category_id);
					$ret .= $this->Application->ParseBlock($block_params, 1);
				}
			}
			
			return $ret;
		}
	}
	
	/**
	 * Shows edit warning in case if module root category changed but not saved
	 *
	 * @param Array $params
	 * @return string
	 */
	function SaveWarning($params)
	{
		$temp_category_id = $this->Application->RecallVar('ModuleRootCategory');
		if ($temp_category_id !== false) {
			return $this->Application->ParseBlock($params);
		}
		return '';
	}
	
	function ModuleRootCategory($params)
	{
		$category_id = $this->Application->RecallVar('ModuleRootCategory');
		if ($category_id === false) {
			$category_id = $this->Application->findModule('Name', $this->Application->GetVar('module'), 'RootCat');
		}
		return $category_id;
	}
}

?>