<?php
defined( 'ABSPATH' ) or die( "No script kiddies please!" );
/*
Plugin name: AccessPress Social Login Lite
Plugin URI: https://accesspressthemes.com/wordpress-plugins/accesspress-social-login-lite/
Description: A plugin to add various social logins to a site.
version: 1.0.4
Author: AccessPress Themes
Author URI: https://accesspressthemes.com/
Text Domain: apsl-lite
Domain Path: /languages/
License: GPLv2 or later
*/

//Declearation of the necessary constants for plugin
if(!defined ( 'APSL_VERSION' ) ){
	define ( 'APSL_VERSION', '1.0.4' );
}

if( !defined( 'APSL_IMAGE_DIR' ) ){
	define( 'APSL_IMAGE_DIR', plugin_dir_url( __FILE__ ) .'images' );
}

if( !defined( 'APSL_JS_DIR' ) ){
	define ( 'APSL_JS_DIR', plugin_dir_url( __FILE__ ) . 'js' );
}

if( !defined( 'APSL_CSS_DIR' ) ){
	define ( 'APSL_CSS_DIR', plugin_dir_url( __FILE__ ) . 'css' );
}

if( !defined( 'APSL_LANG_DIR' ) ){
	define ( 'APSL_LANG_DIR', basename( dirname( __FILE__ ) ). '/languages/' );
}

if(!defined('APSL_TEXT_DOMAIN')){
	define( 'APSL_TEXT_DOMAIN', 'apsl-lite' );
}

if(!defined('APSL_SETTINGS')){
	define('APSL_SETTINGS', 'apsl-lite-settings');
}

if(!defined('APSL_PLUGIN_DIR')){
	define('APSL_PLUGIN_DIR', plugin_dir_path( __FILE__ ) );
}


/**
 * Register a widget
 * */
include_once('inc/backend/widget.php');

// Redefine user notification function
    function wp_new_user_notification( $user_id, $plaintext_pass = '' ) {
        $user = new WP_User($user_id);

        $user_login = stripslashes($user->user_login);
        $user_email = stripslashes($user->user_email);

        $message  = sprintf(__('New user registration on your site %s:'), get_option('blogname')) . "\r\n\r\n";
        $message .= sprintf(__('Username: %s'), $user_login) . "\r\n\r\n";
        $message .= sprintf(__('E-mail: %s'), $user_email) . "\r\n";
        $message .= __('Thanks!');

        $headers = 'From:'.get_option('blogname').' <'.get_option('admin_email').'>' . "\r\n";
        @wp_mail(get_option('admin_email'), sprintf(__('[%s] New User Registration'), get_option('blogname')), $message, $headers);

        if ( empty($plaintext_pass) )
            return;

        $message  = __('Hi there,') . "\r\n\r\n";
        $message .= sprintf(__("Welcome to %s! Here's how to log in:"), get_option('blogname')) . "\r\n\r\n";
        $message .= wp_login_url() . "\r\n";
        $message .= sprintf(__('Username: %s'), $user_login) . "\r\n";
        $message .= sprintf(__('Password: %s'), $plaintext_pass) . "\r\n\r\n";
        $message .= sprintf(__('If you have any problems, please contact me at %s.'), get_option('admin_email')) . "\r\n\r\n";
        $message .= __('Thanks!');

        $headers = 'From:'.get_option('blogname').' <'.get_option('admin_email').'>' . "\r\n";

        wp_mail($user_email, sprintf(__('[%s] Your username and password'), get_option('blogname')), $message, $headers);

    }

// Declaration of the class
if( !class_exists( 'APSL_Lite_Class' ) ){
	class APSL_Lite_Class{
		var $apsl_settings;
		function __construct(){
			$this->apsl_settings = get_option( APSL_SETTINGS );
			add_action('init', array($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_menu', array( $this, 'add_apsl_menu' )); //register the plugin menu in backend
			add_action('admin_enqueue_scripts', array($this, 'register_admin_assets')); //registers all the assets required for wp-admin
            add_action('wp_enqueue_scripts', array($this, 'register_frontend_assets')); // registers all the assets required for the frontend
            add_action( 'admin_post_apsl_save_options', array($this, 'save_settings') ); //save settings of a plugin
            
            $options = get_option( APSL_SETTINGS );
            if($options['apsl_enable_disable_plugin'] =='yes'){
            	if(in_array("login_form", $options['apsl_display_options'])) {
	            	add_action( 'login_form', array($this, 'add_social_login') ); // add the social logins to the login form
	        	}
	            
            	if( in_array("register_form", $options['apsl_display_options']) ) {
	            	add_action( 'register_form', array($this, 'add_social_login') ); //add the social logins to the registration form
					add_action('after_signup_form', array($this,'add_social_login') );
	            }	

            	if( in_array( "comment_form", $options['apsl_display_options'] ) ) {
	            	add_action( 'comment_form_top', array($this, 'add_social_login_form_to_comment') ); //add the social logins to the comment form
	        	}
            }

            add_shortcode('apsl-login-lite', array($this, 'apsl_shortcode')); //adds a shortcode
            add_action( 'init', array($this,'login_check') ); //check for the social logins
            add_action('widgets_init', array($this, 'register_apsl_widget')); //register the widget of a plugin
            add_action( 'login_enqueue_scripts', array($this, 'apsl_login_form_enqueue_style'), 10 );
			add_action( 'login_enqueue_scripts', array($this, 'apsl_login_form__enqueue_script'), 1 );
			add_action('admin_post_apsl_restore_default_settings',array($this,'apsl_restore_default_settings'));//restores default settings.

			/**
			 * Hook to display custom avatars
			*/
			add_filter ('get_avatar', array($this,'apsl_social_login_custom_avatar'), 10, 5);

		}

		function apsl_social_login_custom_avatar ($avatar, $mixed, $size, $default, $alt = '')
		{
				$options = get_option( APSL_SETTINGS );

				//Check if we have an user identifier
				if (is_numeric ($mixed) AND $mixed > 0)
				{
					$user_id = $mixed;
				}

				//Check if we have an user email
				elseif (is_string ($mixed) AND ($user = get_user_by ('email', $mixed)))
				{
					$user_id = $user->ID;
				}
				//Check if we have an user object
				elseif (is_object ($mixed) AND property_exists ($mixed, 'user_id') AND is_numeric ($mixed->user_id))
				{
					$user_id = $mixed->user_id;
				}
				//None found
				else
				{
					$user_id = null;
				}
				
				//User found?
				if (!empty ($user_id))
				{

					//Override current avatar ?
					$override_avatar = true;
				
						//Read the avatar
						$user_meta_thumbnail 	= get_user_meta ($user_id, 'deuimage', true);
						
						//read user details
						$user_meta_name 		= get_user_meta ($user_id, 'first_name', true);

						if($options['apsl_user_avatar_options'] == 'social'){
							$user_picture = (!empty ($user_meta_thumbnail) ? $user_meta_thumbnail : '');
						
							//Avatar found?
							if ($user_picture !== false AND strlen (trim ($user_picture)) > 0)
							{
								return '<img alt="' . $user_meta_name . '" src="' . $user_picture . '" class="avatar apsl-avatar-social-login avatar-' . $size . ' photo" height="' . $size . '" width="' . $size . '" />';
							}
						}
				}
			return $avatar;
		}
		
		//starts the session with the call of init hook
        function session_init() {
            if (!session_id()) {
                session_start();
            }
        }

        //load the default settings of the plugin
		function plugin_activation(){
			if( !get_option( APSL_SETTINGS ) ){
				include('inc/backend/activation.php');
			}
		}

		//loads the text domain for translation
		function plugin_text_domain(){

			load_plugin_textdomain( APSL_TEXT_DOMAIN, false, APSL_LANG_DIR );
		}

		//register the plugin menu for backend.
		function add_apsl_menu(){
			
			add_menu_page( 'AccessPress Social Login Lite', 'AccessPress Social Login Lite', 'manage_options', APSL_TEXT_DOMAIN , array( $this, 'main_page' ), APSL_IMAGE_DIR . '/icon.png' );
		}

			//menu page
			function main_page(){
			include( 'inc/backend/main-page.php' );
		}

		//registration of the backend assets
		function register_admin_assets(){
			wp_enqueue_style( 'fontawsome-css', '//maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css', '', APSL_VERSION );
			
			if( isset($_GET['page']) && $_GET['page']== APSL_TEXT_DOMAIN ){
			
			//backend scripts
			wp_enqueue_script( 'jquery-ui-sortable' );
            wp_enqueue_script( 'apsl-admin-js', APSL_JS_DIR . '/backend.js', array( 'jquery', 'jquery-ui-sortable' ), APSL_VERSION );//registering plugin's admin js
            
            //register backend css
			wp_enqueue_style( 'apsl-backend-css', APSL_CSS_DIR.'/backend.css', '', APSL_VERSION );

			}
		}

		//registration of the plugins frontend assets
		function register_frontend_assets(){
			//register frontend scripts
			wp_enqueue_script('apsl-frontend-js', APSL_JS_DIR.'/frontend.js', array('jquery'), APSL_VERSION );

			//register frontend css
			wp_enqueue_style( 'fontawsome-css', '//maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css', '', APSL_VERSION );
			wp_enqueue_style( 'apsl-frontend-css', APSL_CSS_DIR.'/frontend.css', '', APSL_VERSION );
		}

		//save the settings of a plugin
		function save_settings(){
			if(isset($_POST['apsl_save_settings']) && $_POST['apsl_settings_action'] && wp_verify_nonce( $_POST['apsl_settings_action'], 'apsl_nonce_save_settings')){
				include('inc/backend/save-settings.php');
			}else{
				die('No script kiddies please!');
			}
		}

		//function to add the social login in the login and registration form.
		function add_social_login(){
			if(!is_user_logged_in()){
				include('inc/frontend/login_integration.php');
			}
		}

		//function to add the social login in the comment form.
		function add_social_login_form_to_comment(){ ?>
		<?php 
			$options = get_option( APSL_SETTINGS );
			$login_text = $options['apsl_title_text_field'];
		if (!is_user_logged_in()){ ?>
			<?php
			echo do_shortcode("[apsl-login-lite login_text='{$login_text}']");
			 }
		}

		//function for adding shortcode of a plugin
        function apsl_shortcode($attr) {
            ob_start();
            include('inc/frontend/shortcode.php');
            $html = ob_get_contents();
            ob_get_clean();
            return $html;
        }

        //checking of the login
		function login_check(){
			include('inc/frontend/login_check.php');
		}

		//registration of the social login widget
        function register_apsl_widget() {
            register_widget('APSL_Lite_Widget');
        }

        function apsl_login_form_enqueue_style(){
			wp_enqueue_style( 'fontawsome-css', '//maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css', '', APSL_VERSION );
			wp_enqueue_style( 'apsl-backend-css', APSL_CSS_DIR.'/backend.css', '', APSL_VERSION );
			wp_enqueue_style( 'apsl-frontend-css', APSL_CSS_DIR.'/frontend.css', '', APSL_VERSION );

        }

		function apsl_login_form__enqueue_script(){
            wp_enqueue_script( 'apsl-admin-js', APSL_JS_DIR . '/backend.js', array( 'jquery', 'jquery-ui-sortable' ), APSL_VERSION );//registering plugin's admin js
		}

		function apsl_restore_default_settings(){
			 $nonce = $_REQUEST['_wpnonce'];
                if(!empty($_GET) && wp_verify_nonce( $nonce, 'apsl-restore-default-settings-nonce' ) ){
                    //restore the default plugin activation settings from the activation page.
                    include( 'inc/backend/activation.php' );
                    $_SESSION['apsl_message'] = __( 'Settings restored Successfully.', APSL_TEXT_DOMAIN );
                    wp_redirect( admin_url().'admin.php?page='.APSL_TEXT_DOMAIN );
                    exit;
                }else{
                    die( 'No script kiddies please!' );
                }
		}

	}//class termination
}

$apsl_object = new APSL_Lite_Class();

?>