<?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: 2.0.1
  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', '2.0.1');
}

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
if (!function_exists('wp_new_user_notification')) {

    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();