<?php
/** 
 * Copyright (c) 2006-2011 Laposa Limited (https://laposa.ie)
 * Licensed under the New BSD License. See the file LICENSE.txt for details.
 *
 */

class Onyx_Controller_Component_Taxonomy extends Onyx_Controller {

    /**
     * main action
     */
     
    public function mainAction() {
        
        /**
         * input variables
         */
         
        if (is_numeric($this->GET['id'])) $node_id =  $this->GET['id'];
        else return false;
        
        $relation = $this->GET['relation'];
        
        /**
         * initialize related object
         */
         
        $this->Taxonomy = $this->initializeRelatedObject($relation);
        
        /**
         * process listing
         */
         
        if (is_numeric($node_id) && is_object($this->Taxonomy)) {
        
            $taxonomy_list = $this->getTaxonomyListForNodeId($node_id);
            
            $taxonomy_label_list = $this->mapTaxonomyLabels($taxonomy_list);
            
            $taxonomy_label_level_list = $this->joinSameLevelTitles($taxonomy_label_list);
            
            $taxonomy_label_route_list = $this->joinRouteTitles($taxonomy_label_level_list);    
            
            $taxonomy_label_route_list = $this->addParentData($taxonomy_label_route_list);
            
            $taxonomy_label_route_list = $this->sortByPriority($taxonomy_label_route_list);
            
            $this->parseListToTemplate($taxonomy_label_route_list);
            
        }

        return true;
    }
    
    /**
     * initialize related object
     */
     
    public function initializeRelatedObject($relation = 'node') {
    
        require_once('models/common/common_node.php');
        $Node = new common_node();
        
        switch ($relation) {
        
            case 'product':
                require_once('models/ecommerce/ecommerce_product_taxonomy.php');
                $Taxonomy = new ecommerce_product_taxonomy();
            break;
            
            case 'variety':
                require_once('models/ecommerce/ecommerce_product_variety_taxonomy.php');
                $Taxonomy = new ecommerce_product_variety_taxonomy();
            break;
            
            case 'node':
            default:
                require_once('models/common/common_node_taxonomy.php');
                $Taxonomy = new common_node_taxonomy();
            break;
            
        }
        
        return $Taxonomy;
    }
    
    /**
     * map taxonomy labels
     */
     
    public function mapTaxonomyLabels($list) {
        
        if (!is_array($list)) return false;
        
        $label_list = array();
        
        foreach ($list as $item) {
            
            $label = $this->Taxonomy->getLabel($item['taxonomy_tree_id']);
            $label_list[$label['id']] = $label;
            
        }

        return $label_list;
            
    }
    
    /**
     * get root
     */
     
    function getParentData($item) {
        
        if (is_numeric($item['parent'])) {
            
            $parent_data = $this->Taxonomy->getLabel($item['parent']);
            
        } else {
            //root category (NULL)
            $parent_id = 0;
            $detail['taxonomy_data']['parent'] = 0;
            $parent_data['id'] = 0;
            $parent_data['title'] = 'Category';
            $parent_data['description'] = '';
            $parent_data['priority'] = 0;
            $parent_data['priority'] = 1;
            $parent_data['label'] = $detail['parent_data'];
        }       
        
        return $parent_data;
            
    }
    
    /**
     * parse to template
     */
     
    function parseListToTemplate($list) {
            
        if (!is_array($list)) return false;
        
        $parsed_count = 0;
        
        //print_r($taxonomy_detail);
        foreach ($list as $item) {
            
            $parsed_item = $this->parseItem($item);
            
            $parsed_count = $parsed_count + $parsed_item;
            
        }
        
        if ($parsed_count > 0) $this->tpl->parse('content.taxonomy');
            
    }
    
    /**
     * parse item
     */
     
    public function parseItem($item) {
        
        //don't show root items in same cases
        
        if ($this->GET['hide_root'] == 0 || $item['parent'] > 0) {
            
            //display only published folders and items
            if ($item['parent_data']['label']['publish'] == 1 && $item['label']['publish'] == 1) {
                
                $this->tpl->assign("ITEM", $item);
                
                $this->tpl->parse("content.taxonomy.item");
            
                return 1;
                
            } else {
                
                return 0;
                
            }
            
            return 1;
            
        } else {
        
            return 0;
            
        }
        
    }
    
    
    /**
     * get taxonomy list for node id
     */
     
    public function getTaxonomyListForNodeId($node_id) {
    
        if (!is_numeric($node_id)) return false;
        
        $list = $this->Taxonomy->listing("node_id = " . $node_id);
        
        return $list;
        
    }
    
    /**
     * join together labels from the same level
     */
     
    function joinSameLevelTitles($list) {

        if (!is_array($list)) return false;
    
        $list_joined = array();
        $list_joined_final = array();
        
        $proceed_parent_id = array();
        
        foreach($list as $item) {
            
            if (in_array($item["parent"], $proceed_parent_id)) { 
                
                $list_joined[$item["parent"]]['label']['title'] =  $list_joined[$item["parent"]]['label']['title'] . ', ' . $item['label']['title'];
                    
            } else {
                    
                $list_joined[$item["parent"]] = $item;
                        
                $proceed_parent_id[] = $item["parent"];
                
            }
                    
        }
        
        //reformat
        
        foreach ($list_joined as $item) {
        
            $list_joined_final[$item['id']] = $item;
        
        }

        return $list_joined_final;

    }
    
    /**
     * join together labels from the same route
     */
     
    function joinRouteTitles($list) {

        if (!is_array($list)) return false;
    
        $list_joined = array();
        $list_joined_final = array();
        $proceed_parent_id = array();
        
        foreach($list as $item) {
            
            if (is_array($list[$item["parent"]])) { 
                
                $proceed_parent_id[] = $item['parent']; //prepare to be removed 
                
                $item['label']['title'] = $list[$item['parent']]['label']['title'] . ', ' . $item['label']['title'];
                $item['parent'] = $list[$item["parent"]]['parent'];
                $item['publish'] = $list[$item["parent"]]['publish'];
                $item['priority'] = $list[$item["parent"]]['priority'];
                
            }
            
            $list_joined[] = $item;
                
        }

        //remove proceed parent items
        
        foreach ($list_joined as $item) {
        
            if (!in_array($item['id'], $proceed_parent_id)) $list_joined_final[] = $item;
        
        }
        
        return $list_joined_final;

    }
    
    /**
     * add parent data
     */
     
    public function addParentData($list) {
    
        foreach ($list as $k=>$item) {
        
            $list[$k]['parent_data'] = $this->getParentData($item);
        
        }
        
        return $list;
    }
    
    
    /**
     * sort by priority
     */
     
    public function sortByPriority($list) {
    
        /**
         * first pass parent_priority to the same level in multiarray (preparation for multisort function)
         */
         
        foreach ($list as $k=>$item) {
        
            $list[$k]['parent_priority'] = $item['parent_data']['priority'];
        
        }
        
        /**
         * use multisort function
         */
         
        $list = php_multisort($list, array(array('key'=>'parent_priority', 'sort'=>'DESC'), array('key'=>'parent', 'type'=>'numeric')));
        
        foreach ($list as $item) {
            $l[] = $item;
        }
        
        $list = $l;
                
                
        return $list;
    
    }
}