<?php
namespace PressForward\Controllers;

/**
 * PressForward to WP post object lifecycle tools
 *
 */

use PressForward\Interfaces\Advance_System as Advance_System;
class PF_Advancement implements Advance_System {
	//var $last_step_state;
	//var $last_step_post_type;

	public function __construct( Metas $metas ) {
		$this->metas = $metas;
		//$this->last_step_state = $this->last_step_state();
		//$this->last_step_post_type = $this->last_step_post_type();
	}

	public function last_step_state(){
		return get_option(PF_SLUG.'_draft_post_status', 'draft');
	}

	public function last_step_post_type(){
		return get_option(PF_SLUG.'_draft_post_type', 'post');
	}

	// Transition Tools
	public function transition($old_post, $new_post){
		$this->transition_post_image($old_post, $new_post);
		$this->metas->transition_post_meta($old_post, $new_post);
		$this->transition_taxonomy_info($old_post, $new_post);
		do_action('transition_pf_post_meta', $old_post, $new_post);
	}

	public function transition_taxonomy_info($old_post, $new_post){
		//$old_terms = array();
		$taxonomies = apply_filters( 'pf_valid_post_taxonomies', array('category', 'post_tag') );
		foreach ($taxonomies as $taxonomy) {
			$old_tax_terms = get_the_terms($old_post, $taxonomy);

			if ( ( false !== $old_tax_terms ) && ( !is_wp_error($old_tax_terms) ) && ( is_array($old_tax_terms) ) ){
				$old_term_ids = array();
				foreach($old_tax_terms as $term){
					$old_term_ids[] = intval($term->term_id);
				}
				wp_set_object_terms($new_post, $old_term_ids, $taxonomy, true);
			}
		}
		$item_tags = $this->metas->get_post_pf_meta($old_post, 'item_tags');
		if ( !is_array($item_tags) ){
			$item_tags = explode(',', $item_tags);
		}
		foreach ($item_tags as $key => $tag) {
			$tag = trim($tag);
			$tag_info = wp_create_term($tag);
			if (!is_wp_error($tag_info)){
				$tag_id = intval($tag_info['term_id']);
				wp_set_object_terms($new_post, $tag_id, 'post_tag', true);
			} else {
				pf_log($tag_info);
			}
		}
		//$old_category_terms = get_the_terms($old_post, 'category');
		//var_dump($old_terms); die();
		//foreach ($old_terms as $old_term){
		//	wp_set_object_terms($new_post, $old_term->term_id, $old_term->taxonomy, true);
		//}


	}

	public function transition_post_image($old_post, $new_post){
		$already_has_thumb = has_post_thumbnail($old_post);
		if ($already_has_thumb)  {
			$post_thumbnail_id = get_post_thumbnail_id( $old_post );
			set_post_thumbnail($new_post, $post_thumbnail_id);
		}
	}

	// Step Tools
	public function to_last_step( $post = array() ){
		$old_id = $post['ID'];
		unset($post['ID']);
		$post['post_type'] = $this->last_step_post_type();
		$post['post_status'] = $this->last_step_state();
		$post['post_date'] = current_time('Y-m-d H:i:s');
		$post['post_date_gmt'] = get_gmt_from_date( current_time('Y-m-d H:i:s') );
		pf_log($post);
		$post['post_content'] = pressforward('controller.readability')->process_in_oembeds( pressforward('controller.metas')->get_post_pf_meta($old_id, 'item_link'), $post['post_content'] );
		$id = pressforward('controller.items')->insert_post( $post, true, pressforward('controller.metas')->get_post_pf_meta($old_id, 'item_id') );
		do_action( 'pf_transition_to_last_step', $id );
		return $id;
	}

	public function to_nomination( $post = array() ){
		$post['post_status'] = 'draft';
		$post['post_type'] = pressforward('schema.nominations')->post_type;
		$post['post_date'] = current_time('Y-m-d H:i:s');
		$post['post_date_gmt'] = get_gmt_from_date( current_time('Y-m-d H:i:s') );
		$orig_post_id = $post['ID'];
		unset($post['ID']);
		$id = pressforward('controller.items')->insert_post( $post, false, pressforward('controller.metas')->get_post_pf_meta($orig_post_id, 'item_id') );
		do_action( 'pf_transition_to_nomination', $id );
		return $id;
	}

	// Checking for the existence of posts in previous PF states.
	public function get_pf_type_by_id($item_id, $post_type){
		$q = $this->pf_get_posts_by_id_for_check($post_type, $item_id, true);
		if ( 0 < $q->post_count ){
			$nom = $q->posts;
			$r = $nom[0];
		} else {
			$r = false;
		}
		/* Restore original Post Data */
		wp_reset_postdata();
		return $r;
	}

	public function prep_bookmarklet( $post_id ){
		if ( isset( $_POST['post_format'] ) ) {
			if ( current_theme_supports( 'post-formats', $_POST['post_format'] ) )
				set_post_format( $post_id, $_POST['post_format'] );
			elseif ( '0' == $_POST['post_format'] )
				set_post_format( $post_id, false );
		}

		if ( isset( $_POST['post_category'] ) ){
			//var_dump($_POST['post_category']); die();
			$categories = array();
			foreach ( $_POST['post_category'] as $category_id ){
				$categories[$category_id] = intval($category_id);
			}
			wp_set_object_terms($post_id, $categories, 'category', false);
		}
	}

	/**
	 * Get all posts with 'item_id' set to a given item id
	 *
	 * @since 1.7
	 *
	 * @param string $post_type The post type to limit results to.
	 * @param string $item_id The origin item id.
	 * @param bool $ids_only Set to true if you want only an array of IDs returned in the query.
	 *
	 * @return object A standard WP_Query object.
	 */
	function pf_get_posts_by_id_for_check( $post_type = false, $item_id, $ids_only = false ) {
		global $wpdb;
		# If the item is less than 24 hours old on nomination, check the whole database.
	#	$theDate = getdate();
		#$w = date('W');
		$r = array(
								'meta_key' => 'item_id',
								'meta_value' => $item_id,
								'post_type'	=> array('post', pf_feed_item_post_type())
							);

		if ($ids_only){
			$r['fields'] = 'ids';
			$r['no_found_rows'] = true;
			$r['cache_results'] = false;

		}

		if (false != $post_type){
			$r['post_type'] = $post_type;
		}

		$postsAfter =  new \WP_Query( $r );
		pf_log(' Checking for posts with item ID '. $item_id .' returned query with ' . $postsAfter->post_count . ' items.');
		#pf_log($postsAfter);
		return $postsAfter;
	}

	// Utility Functions
	function pull_content_images_into_pf($post_ID, $item_content, $photo_src, $photo_description){
		$content = isset($item_content) ? $item_content : '';

		$upload = false;
		if ( !empty($photo_src) && current_user_can('upload_files') ) {
			foreach( (array) $photo_src as $key => $image) {
				// see if files exist in content - we don't want to upload non-used selected files.
				if ( strpos($content, htmlspecialchars($image)) !== false ) {
					$desc = isset($photo_description[$key]) ? $photo_description[$key] : '';
					$upload = media_sideload_image($image, $post_ID, $desc);

					// Replace the POSTED content <img> with correct uploaded ones. Regex contains fix for Magic Quotes
					if ( !is_wp_error($upload) )
						$content = preg_replace('/<img ([^>]*)src=\\\?(\"|\')'.preg_quote(htmlspecialchars($image), '/').'\\\?(\2)([^>\/]*)\/*>/is', $upload, $content);
				}
			}
		}

		return $content;
	}

}