<?php defined( 'ABSPATH' ) or die( "No script kiddies please!" );
/*
	Plugin name: AccessPress Custom CSS
	Plugin URI: https://accesspressthemes.com/wordpress-plugins/accesspress-custom-css/
	Description: A plugin to add custom css to a site.
	Version: 1.0.6
	Author: AccessPress Themes
	Author URI: http://accesspressthemes.com
	Text Domain: accesspress-custom-css
	Domain Path: /languages/
	License: GPLv2 or later
*/
//Decleration of the necessary constants for plugin
if( !defined( 'APCCSS_VERSION' ) ) {
    define( 'APCCSS_VERSION', '1.0.6' );
}

if( !defined( 'APCCSS_IMAGE_DIR' ) ) {
    define( 'APCCSS_IMAGE_DIR', plugin_dir_url( __FILE__ ) . 'images' );
}

if( !defined( 'APCCSS_JS_DIR' ) ) {
    define( 'APCCSS_JS_DIR', plugin_dir_url( __FILE__ ) . 'js/' );
}

if( !defined( 'APCCSS_CSS_DIR' ) ) {
    define( 'APCCSS_CSS_DIR', plugin_dir_url( __FILE__ ) . 'css/' );
}

if( !defined( 'APCCSS_TEXT_DOMAIN' ) ) {
    define( 'APCCSS_TEXT_DOMAIN', 'accesspress-custom-css' );
}

if( !defined( 'APCCSS_LANG_DIR' ) ) {
    define( 'APCCSS_LANG_DIR', basename( dirname( __FILE__ ) ) . '/languages/' );
}

if( !defined( 'APCCSS_SETTINGS' ) ) {
    define( 'APCCSS_SETTINGS', 'apccss-settings' );
}
//Declaration of the class for necessary configuration of a plugin
if( !class_exists( 'APC_Css_free' ) ) {
    class APC_Css_free
    {
        var $apcss_settings;
        function __construct() {
            $this->apcss_settings = get_option( APCCSS_SETTINGS );
            add_action( 'init', array($this, 'session_init') ); //start the session if not started yet.
            add_action( 'init', array($this, 'plugin_text_domain') ); //load the plugin text domain
            register_activation_hook( __FILE__, array($this, 'plugin_activation') ); //load the default setting for the plugin while activating
            add_action( 'admin_menu', array($this, 'add_apccss_menu') ); //register the plugin menu in backend
            add_action( 'admin_enqueue_scripts', array($this, 'register_admin_assets') ); //registers all the assets required for wp-admin
            add_action( 'admin_post_apccss_save_options', array($this, 'apccss_save_options') ); //save the options in the wordpress options table.
            add_action( 'admin_post_apccss_restore_default_settings', array($this, 'apccss_restore_default_settings') ); //save the options in the wordpress options table.
            add_action( 'wp_head', array($this, 'add_my_custom_css'), 999 ); //enqueue the custom css script to head
            
        }
        //starts the session with the call of init hook
        function session_init() {
            if( !session_id() ) {
                session_start();
            }
        }
        //loads the text domain for translation
        function plugin_text_domain() {
            load_plugin_textdomain( 'accesspress-custom-css', false, APCCSS_LANG_DIR );
        }
        //load the default settings of the plugin
        function plugin_activation() {
            if( !get_option( APCCSS_SETTINGS ) ) {
                include( 'inc/backend/activation.php' );
            }
        }
        //register the plugin menu in the backend
        function add_apccss_menu() {
            add_options_page( 'AccessPress Custom CSS', 'AccessPress Custom CSS', 'manage_options', 'accesspress-custom-css', array($this, 'main_page') );
        }
        //registration of the admin assets
        function register_admin_assets() {
            if( isset( $_GET['page'] ) && $_GET['page'] == 'accesspress-custom-css' ) {
                //backend css
                wp_enqueue_style( 'apsp-frontend-css', APCCSS_CSS_DIR . 'backend.css', '', APCCSS_VERSION );
                wp_enqueue_style( 'apcss-codemirror-css', APCCSS_CSS_DIR . 'syntax/codemirror.css', '', APCCSS_VERSION );
                wp_enqueue_style( 'apcss-fontawesome-css', '//maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css', APCCSS_VERSION );
                //backend js
                wp_enqueue_script( 'apccss-codemirror-js', APCCSS_JS_DIR . 'syntax/codemirror.js', array('jquery'), APCCSS_VERSION );
                wp_enqueue_script( 'apccss-codemirror-css-js', APCCSS_JS_DIR . 'syntax/css.js', array('jquery', 'apccss-codemirror-js'), APCCSS_VERSION );
                wp_enqueue_script( 'apcss-backend-js', APCCSS_JS_DIR . 'backend.js', array('jquery', 'apccss-codemirror-css-js'), APCCSS_VERSION );
            }
            
            if( is_plugin_active( "wp-editor/wpeditor.php" ) && $_SERVER['QUERY_STRING'] == 'page=accesspress-custom-css' ) {
                function remove_wpeditor_header_info() {
                    // Wp Editor Style
                    wp_deregister_style( 'wpeditor' );
                    wp_deregister_style( 'fancybox' );
                    wp_deregister_style( 'codemirror' );
                    wp_deregister_style( 'codemirror_dialog' );
                    wp_deregister_style( 'codemirror_themes' );
                    // Wp Editor Script
                    wp_deregister_script( 'wpeditor' );
                    wp_deregister_script( 'wp-editor-posts-jquery' );
                    wp_deregister_script( 'fancybox' );
                    wp_deregister_script( 'codemirror' );
                    wp_deregister_script( 'codemirror_php' );
                    wp_deregister_script( 'codemirror_javascript' );
                    wp_deregister_script( 'codemirror_css' );
                    wp_deregister_script( 'codemirror_xml' );
                    wp_deregister_script( 'codemirror_clike' );
                    wp_deregister_script( 'codemirror_dialog' );
                    wp_deregister_script( 'codemirror_search' );
                    wp_deregister_script( 'codemirror_searchcursor' );
                    wp_deregister_script( 'codemirror_mustache' );
                }
                add_action( 'admin_init', 'remove_wpeditor_header_info', 20 );
            }
        }
        //function to save the settings of a plugin
        function apccss_save_options() {
            if( isset( $_POST['apccss_add_nonce_save_settings'] ) && isset( $_POST['apccss_save_settings'] ) && wp_verify_nonce( $_POST['apccss_add_nonce_save_settings'], 'apccss_nonce_save_settings' ) ) {
                include( 'inc/backend/save-settings.php' );
            }
        }
        //function to restore the default settings of a plugin
        function apccss_restore_default_settings() {
            $nonce = $_REQUEST['_wpnonce'];
            if( !empty( $_GET ) && wp_verify_nonce( $nonce, 'apccss-restore-default-settings-nonce' ) ) {
                //restore the default plugin activation settings from the activation page.
                include( 'inc/backend/activation.php' );
                $_SESSION['apccss_message'] = __( 'Editor Cleared Successfully.', 'accesspress-custom-css' );
                wp_redirect( admin_url() . 'admin.php?page=accesspress-custom-css' );
                exit;
            } 
            else {
                die( 'No script kiddies please!' );
            }
        }
        //plugins backend admin page
        function main_page() {
            include( 'inc/backend/main-page.php' );
        }
        // Thanks to https://wordpress.org/plugins/simple-custom-css/ (functions used from)
        function mycustomcss() {
            // Strip tag for security reason!
            $options = get_option( APCCSS_SETTINGS );
            $mycustomcss = strip_tags( $options['css'] );
            return $mycustomcss;
        }
        
        function css_path() {
            global $blog_id;
            $cssid =( $blog_id > "1" ) ? $cssid = "_id-" . $blog_id : $cssid = null;
            $css_path = plugin_dir_path( __FILE__ ) . "css/frontend/" . "apccss" . $cssid . ".css";
            return $css_path;
        }
        
        function css_url() {
            global $blog_id;
            $cssid =( $blog_id > "1" ) ? $cssid = "_id-" . $blog_id : $cssid = null;
            $css_url = plugin_dir_url( __FILE__ ) . "css/frontend/" . "apccss" . $cssid . ".css";
            return $css_url;
        }
        
        function makecss() {
            // make apccss.css file and write css code
            $makecss = file_put_contents( $this->css_path(), "/********* Do not edit this file *********/\n/*\n Accesspress Custom CSS - plugin by https://accesspressthemes.com\n*/\n\n" . $this->mycustomcss() );
            return $makecss;
        }
        
        function add_my_custom_css() {
            $mycustomcss = $this->mycustomcss();
            if( !empty( $mycustomcss ) ) {
                $this->makecss();
                // Write in source!
                echo "\n<!-- AccessPress Custom CSS Starts -->\n<style type=\"text/css\">\n/* AccessPress Custom CSS : AccessPress Themes team */\n@import url('" . $this->css_url() . "?" . filemtime( $this->css_path() ) . "');\n/* AccessPressThemes: https://accesspressthemes.com */\n</style>\n<!-- AccessPress Custom CSS Ends -->\n";
            } 
            else if( empty( $mycustomcss ) ) {
                $this->makecss();
            }
        }
    }
    $apccss_object = new APC_Css_free();
}