<?php
/**
 * Blog model for interfacing with a Wordpress backend
 *
 * @author Alex Crooks http://alexcrooks.me
 **/

// Load the wordpress bootstrap and it's helpers
define('WP_USE_THEMES', false);
require_once(APP_PATH.BLOG_FOLDER.'wp-blog-header.php');

class Blog 
{    
    function __construct() 
    {
        // STUB
    }

    // Get our latest blog posts
    function getLatest($numOfPosts = BLOG_NUM_POSTS, $offset = 0)
    {
        return wp_get_recent_posts(array(
            'numberposts' => $numOfPosts,
            'offset' => $offset,
            'post_status' => 'publish'
        ));
    }

    // Get post by slug ("post_name" in wp db)
    function getPost($slug = FALSE)
    {
        if(!$slug)
            return FALSE;

        $getPost = get_page_by_path($slug, 'ARRAY_A', 'post');
        if($getPost)
        {
            if($getPost['post_status'] == "publish")
                return $getPost;
            else
                return false;
        }
        else
        {
            return false;
        }
    }

    // Get preview to a post
    function getPreview($id = FALSE)
    {
        if(!$id)
            return FALSE;

        return get_post($id, 'ARRAY_A');        
    }

    // Get related posts based on tags used in original post
    function getRelated($postID, $numResults = 3)
    {
        $related = array();
        $tags = array();
        $getTags = wp_get_post_tags($postID);

        if($getTags && $postID) 
        {            
            foreach($getTags as $tag) 
            {
                $tags[] = $tag->name;
            }

            $getRelated = get_posts(array(
                'numberposts'   => $numResults,
                'tag_slug__in'  => $tags,
                'post__not_in'  => array($postID)
            ));

            foreach($getRelated as $relatedPost)
            {                
                $related[] = array(
                    'ID'            => $relatedPost->ID,
                    'image'         => $this->getFeaturedImageUrl($relatedPost->ID),
                    'post_title'    => $relatedPost->post_title,
                    'post_name'     => $relatedPost->post_name
                );               
            }
        }

        return $related;
    }

    function getFeaturedImageUrl($postID, $size = "large")
    {
        $image = DEFAULT_BLOG_IMAGE_URL;

        $getImage = wp_get_attachment_image_src(get_post_thumbnail_id($postID), $size);

        if($getImage)
            $image = $getImage[0];

        return $image;
    }

    function search($term)
    {
        return get_posts(array('s' => $term, 'numberposts' => -1));
    }

    function cleanOut($content)
    {
        return tag_escape($content);
    }
}
$blog = new Blog();