<?php 
defined( 'ABSPATH' ) or die( "No script kiddies please!" );
/*
Plugin name: AccessPress Pinterest
Plugin URI: https://accesspressthemes.com/wordpress-plugins/accesspress-pinterest/
Description: A plugin to add various pinterest widgets and pins to a site with dynamic configuration options.
Version: 1.0.2
Author: AccessPress Themes
Author URI: http://accesspressthemes.com
Text Domain:apsp-pinterest
Domain Path: /languages/
License: GPLv2 or later
*/

//Decleration of the necessary constants for plugin
if(!defined ( 'APSP_VERSION' ) ){
	define ( 'APSP_VERSION', '1.0.2' );
}

if( !defined( 'APSP_IMAGE_DIR' ) ){
	define( 'APSP_IMAGE_DIR', plugin_dir_url( __FILE__ ) .'images' );

}

if( !defined( 'APSP_JS_DIR' ) ){
	define ( 'APSP_JS_DIR', plugin_dir_url( __FILE__ ) . 'js' );
}

if( !defined( 'APSP_CSS_DIR' ) ){
	define ( 'APSP_CSS_DIR', plugin_dir_url( __FILE__ ) . 'css' );
}

if( !defined( 'APSP_LANG_DIR' ) ){
	define ( 'APSP_LANG_DIR', basename( dirname( __FILE__ ) ). '/languages/' );
}

if(!defined('APSP_TEXT_DOMAIN')){
	define( 'APSP_TEXT_DOMAIN', 'apsp-pinterest' );
}

if(!defined('APSP_SETTINGS')){
	define('APSP_SETTINGS', 'apsp-settings');
}

/**
 * Register of widgets
 * */
include_once('inc/backend/widget.php');

//Decleration of the class for necessary configuration of a plugin

if ( !class_exists( 'APSP_Class_free' ) ){
	class APSP_Class_free{
		var $apsp_settings;
		function __construct(){
			$this->apsp_settings = get_option( APSP_SETTINGS );
			add_action('init', array($this, 'session_init')); //start the session if not started yet.
            register_activation_hook(__FILE__, array($this, 'plugin_activation')); //load the default setting for the plugin while activating
            add_action( 'init', array( $this, 'plugin_text_domain' ) ); //load the plugin text domain
            add_action('admin_enqueue_scripts', array($this, 'register_admin_assets')); //registers all the assets required for wp-admin
            add_action('wp_enqueue_scripts', array($this, 'register_frontend_assets')); // registers all the assets required for the frontend
			add_action( 'admin_menu', array( $this, 'add_apsp_menu' )); //register the plugin menu in backend
			add_action('widgets_init', array( $this, 'add_apsp_widget' ));
			add_shortcode('apsp-follow-button', array($this, 'apsp_follow_button_shortcode') );
			add_shortcode('apsp-profile-widget', array($this, 'apsp_profile_widget_shortcode') );
			add_shortcode('apsp-board-widget', array($this, 'apsp_board_widget_shortcode') );
			add_shortcode('apsp-pin-image', array($this, 'apsp_pin_widget_shortcode') );
			add_shortcode('apsp-latest-pins', array($this, 'apsp_latest_pins_widget_shortcode') );
			add_action('admin_post_apsp_save_options', array($this, 'apsp_save_options')); //save the options in the wordpress options table.
			add_action('admin_post_apsp_restore_default_settings', array($this, 'apsp_restore_default_settings')); //restores default settings.

		}

		// function to save the settings of a plugin
		function apsp_save_options(){
			if(isset($_POST['apsp_add_nonce_save_settings']) && isset($_POST['apsp_save_settings']) && wp_verify_nonce($_POST['apsp_add_nonce_save_settings'], 'apsp_nonce_save_settings') )
			include( 'inc/backend/save-settings.php' );
		}

		//load the default settings of the plugin
		function plugin_activation(){
			if( !get_option( APSP_SETTINGS ) ){
				include('inc/backend/activation.php');
			}
		}

		//loads the text domain for translation
		function plugin_text_domain(){
			load_plugin_textdomain( APSP_TEXT_DOMAIN, false, APSP_LANG_DIR);
		}
		
		//starts the session with the call of init hook
        function session_init() {
            if (!session_id()) {
                session_start();
            }
        }

		//register the plugin menu for backend.
		function add_apsp_menu(){
			add_menu_page( 'AccessPress Pinterest', 'AccessPress Pinterest', 'manage_options', APSP_TEXT_DOMAIN , array( $this, 'main_page' ), APSP_IMAGE_DIR . '/apsp-icon.png' );
		}

		//plugins backend admin page
		function main_page() {
			include('inc/backend/main-page.php');
		}

		//registration of the widget
		function add_apsp_widget(){
			register_widget( 'APSP_Follow_Widget_Free' );
			register_widget( 'APSP_Profile_Widget_Free' );
			register_widget( 'APSP_Board_Widget_Free' );
			register_widget( 'APSP_Single_Pin_Widget_Free' );
			register_widget( 'APSP_Latest_Pins_Widget_Free' );
		}

		function apsp_follow_button_shortcode($attr){
			ob_start();
			include( 'inc/frontend/follow-shortcode.php' );
			$html= ob_get_contents();
			ob_get_clean();
			return $html;
		}

		function apsp_pin_widget_shortcode($atts){
			ob_start();
			include( 'inc/frontend/pin-widget-shortcode.php' );
			$html= ob_get_contents();
			ob_get_clean();
			return $html;
		}

		function apsp_profile_widget_shortcode($profile_attr){
			ob_start();
			include( 'inc/frontend/profile-shortcode.php' );
			$html= ob_get_contents();
			ob_get_clean();
			return $html;
		}

		function apsp_board_widget_shortcode($board_attr){
			ob_start();
			include( 'inc/frontend/board-shortcode.php' );
			$html= ob_get_contents();
			ob_get_clean();
			return $html;
		}

		function apsp_latest_pins_widget_shortcode($attr){
			ob_start();
			include( 'inc/frontend/latest-pins-shortcode.php' );
			$html= ob_get_contents();
			ob_get_clean();
			return $html;
		}

		function register_frontend_assets(){
            wp_enqueue_style('apsp-font-opensans', 'http://fonts.googleapis.com/css?family=Open+Sans', array(), false);
            wp_enqueue_style('apsp-frontend-css', APSP_CSS_DIR . '/frontend.css', APSP_VERSION );
			wp_enqueue_script('masionary-js', APSP_JS_DIR . '/jquery-masionary.js', false, array('jquery'), true);
			wp_enqueue_script('frontend-js', APSP_JS_DIR . '/frontend.js', false, array( 'jquery','masionary-js' ), true);

			if($this->apsp_settings['js_enabled']=='on'){
				if($this->apsp_settings['pinit_js_disable'] == 'off'){
					wp_enqueue_script('pinit-js', '//assets.pinterest.com/js/pinit.js', false, null, true);
				}
				add_filter('clean_url', array($this, 'pinit_js_config'));
			}else{
				if($this->apsp_settings['pinit_js_disable'] == 'off'){
					wp_enqueue_script('pinit-js', '//assets.pinterest.com/js/pinit.js', false, null, true);
				}

			}
		}

		function register_admin_assets(){
			wp_enqueue_style('apsp-fontawesome-css', '//maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css', APSP_VERSION );
			wp_enqueue_style('apsp-frontend-css', APSP_CSS_DIR . '/backend.css', APSP_VERSION );
			wp_enqueue_script('apsp-backend-js', APSP_JS_DIR . '/backend.js', array('jquery', 'jquery-ui-sortable', 'wp-color-picker'),  APSP_VERSION);


		}

		function apsp_pinterest_get_rss_feed( $feed_url, $number_of_pins_to_show ){
			// Get a pinterest feed object from the specified feed source.
			$rss = fetch_feed( $feed_url );
			if (!is_wp_error( $rss ) ){
				// Figure out how many total items there are, but limit it to number specified
				$maxitems = $rss->get_item_quantity( $number_of_pins_to_show ); 
				$rss_items = $rss->get_items( 0, $maxitems ); 
			return $rss_items;
			}else{
				return false;
			}
		}

		function trim_text( $text, $length ) {
		//strip html
		$text = strip_tags( $text );
		//no need to trim if its shorter than length
		if (strlen($text) <= $length) {
			return $text;
		}
		$last_space = strrpos( substr( $text, 0, $length ), ' ');
		$trimmed_text = substr( $text, 0, $last_space );
		$trimmed_text .= '...';
		return $trimmed_text;
	}

	function pinit_js_config($url) {
		if (FALSE === strpos($url, 'pinit') || FALSE === strpos($url, '.js') || FALSE === strpos($url, 'pinterest.com')) {
			// this isn't a Pinterest URL, ignore it
			return $url;
		}
		$return_string = "' async";
		$hover_op = $this->apsp_settings['js_enabled'];
		$color_op = $this->apsp_settings['color'];
		$size_op = $this->apsp_settings['size'];
		$lang_op = $this->apsp_settings['language'];
		$shape_op = $this->apsp_settings['shape'];

		// if image hover is enabled, append the data-pin-hover attribute
		if(isset($hover_op) && $hover_op == "on") {
			$return_string = "$return_string data-pin-hover='true";
		}

		// add the shape
		if(isset($shape_op) && $shape_op =='round') {
			$return_string = "$return_string' data-pin-shape='$shape_op";
		}

		// add the size only if it's set to something besides small
		if(isset($size_op)) {
			if($size_op == "28" &&  $shape_op == 'rectangular') {
				$return_string = "$return_string' data-pin-height='$size_op";

			}else if($size_op == "28" && $shape_op =='round'){
				$size_op = '32';
				$return_string = "$return_string' data-pin-height='$size_op";
			}
		}

		// if shape is not round, add the color and language
		if($shape_op != "round") {
			// add the color
			if(isset($color_op)) {
				$return_string = "$return_string' data-pin-color='$color_op";
			}
			// add the language (EN or JP)
			if(isset($lang_op)) {
				$return_string = "$return_string' data-pin-lang='$lang_op";
			}
		}
		if($return_string == "") {
			return $url;
		}
		return $url . $return_string;
	}
	
	//function to restore the default setting of a plugin
	function apsp_restore_default_settings(){
		$nonce = $_REQUEST['_wpnonce'];
            if (!empty($_GET) && wp_verify_nonce($nonce, 'apsp-restore-default-settings-nonce')) {
                //restore the default plugin activation settings from the activation page.
                include( 'inc/backend/activation.php' );
                $_SESSION['apsp_message'] = __('Settings restored Successfully.', APSP_TEXT_DOMAIN);
                wp_redirect( admin_url() . 'admin.php?page='.APSP_TEXT_DOMAIN );
                exit;
            } else {
                die('No script kiddies please!');
            }
	}

	}

	$apsp_object = new APSP_Class_free();
}