<?php if (!defined('BASEPATH')) {
    exit('No direct script access allowed');
}


class Category_model extends MY_Model
{
    private $table = 'cm_category';

    public function __construct()
    {
        parent::__construct();
    }

    public function getOne($categoryId)
    {
        return get_instance()->db->where_in('categoryID', $categoryId)->get('cm_category')->row();
    }

    public function getAll($categoryId)
    {
        $categoryId = is_array($categoryId) ? $categoryId : [$categoryId];
        return get_instance()->db->where_in('categoryID', $categoryId)->get('cm_category')->result();
    }

    public function getSubcategoriesByCategoryId(int $categoryId) {
        return $this->db->where('parentID', $categoryId)->get('cm_category')->result();
    }

    public function getTableCategoryTitle(&$rows)
    {
        $categories = get_instance()->db->get('cm_category')->result();
        array_map(function ($r) use (&$rows, $categories) {
            foreach ($rows as $k => $row) {                
                if ($row['postID'] == $r->postID) {                    
                    $rows[$k]['categoryID'] = $r->categoryID;
                    $rows[$k]['categories'][] = $r->categoryID;
                    foreach ($categories as $c) {
                        if ($c->categoryID == $r->categoryID) {
                            $rows[$k]['categoryTitle'] = (empty($rows[$k]['categoryTitle']) ? '' : $rows[$k]['categoryTitle'] . ', ') . $c->categoryTitle;
                        }
                    }
                }
            }
        }, $this->getPostCategoryByPostIdIn(array_column($rows, 'postID')));
    }

    private function getPostCategoryByPostIdIn($postIds)
    {
        if (count($postIds) == 0) return [];
        return $this->db->from('cm_post_category pc')->where_in('pc.postID', $postIds)->get()->result();
    }

    public function getCategoriesBySlug($slug) {
        $slug = is_array($slug) ? $slug : [$slug];
        return $this->db->where_in('categorySlug', $slug)->from($this->table);
    }
    
}