<?php
/**
 * This file belongs to the YIT Plugin Framework.
 *
 * This source file is subject to the GNU GENERAL PUBLIC LICENSE (GPL 3.0)
 * that is bundled with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://www.gnu.org/licenses/gpl-3.0.txt
 */

if ( !defined( 'ABSPATH' ) ) {
    exit;
} // Exit if accessed directly

if ( !class_exists( 'YIT_Plugin_Panel' ) ) {
    /**
     * YIT Plugin Panel
     *
     * Setting Page to Manage Plugins
     *
     * @class      YIT_Plugin_Panel
     * @package    YITH
     * @since      1.0
     * @author     Your Inspiration Themes
     */
    class YIT_Plugin_Panel {

        /**
         * @var string version of class
         */
        public $version = '1.0.0';

        /**
         * @var array a setting list of parameters
         */
        public $settings = array();

        /**
         * @var array
         */
        protected $_tabs_path_files;

        /**
         * @var array
         */
        private $_main_array_options = array();

        /**
         * @var array
         */
        public $links;

        /**
         * @var bool
         */
        protected static $_actions_initialized = false;

        /**
         * Constructor
         *
         * @since  1.0
         * @author Emanuela Castorina <emanuela.castorina@yithemes.it>
         *
         * @param array $args
         */
        public function __construct( $args = array() ) {

            if ( !empty( $args ) ) {

                $default_args = array(
                    'parent_slug' => 'edit.php?',
                    'page_title'  => __( 'Plugin Settings', 'yith-plugin-fw' ),
                    'menu_title'  => __( 'Settings', 'yith-plugin-fw' ),
                    'capability'  => 'manage_options',
                    'icon_url'    => '',
                    'position'    => null
                );

                $args = apply_filters( 'yit_plugin_fw_panel_option_args', wp_parse_args( $args, $default_args ) );
                if ( isset( $args[ 'parent_page' ] ) && 'yit_plugin_panel' === $args[ 'parent_page' ] )
                    $args[ 'parent_page' ] = 'yith_plugin_panel';

                $this->settings         = $args;
                $this->_tabs_path_files = $this->get_tabs_path_files();

                if ( isset( $this->settings[ 'create_menu_page' ] ) && $this->settings[ 'create_menu_page' ] ) {
                    $this->add_menu_page();
                }

                if ( !empty( $this->settings[ 'links' ] ) ) {
                    $this->links = $this->settings[ 'links' ];
                }

                add_action( 'admin_init', array( $this, 'register_settings' ) );
                add_action( 'admin_menu', array( $this, 'add_setting_page' ), 20 );
                add_action( 'admin_menu', array( $this, 'add_premium_version_upgrade_to_menu' ), 100 );
                add_action( 'admin_bar_menu', array( $this, 'add_admin_bar_menu' ), 100 );
                add_action( 'admin_init', array( $this, 'add_fields' ) );

                // init actions once to prevent multiple actions
                static::_init_actions();
            }

            add_action( 'admin_enqueue_scripts', array( $this, 'admin_enqueue_scripts' ) );

	        //yith-plugin-ui
	        add_action('yith_plugin_fw_before_yith_panel', array($this, 'add_plugin_banner'), 10, 1 );
	        add_action( 'wp_ajax_yith_plugin_fw_save_toggle_element', array( $this, 'save_toggle_element_options' ) );

        }

        /**
         * Init actions once to prevent multiple actions
         *
         * @since  3.0.0
         * @author Leanza Francesco <leanzafrancesco@gmail.com>
         */
        protected static function _init_actions() {
            if ( !static::$_actions_initialized ) {
                add_filter( 'admin_body_class', array( __CLASS__, 'add_body_class' ) );

                // sort plugins by name in YITH Plugins menu
                add_action( 'admin_menu', array( __CLASS__, 'sort_plugins' ), 90 );
                add_filter( 'add_menu_classes', array( __CLASS__, 'add_menu_class_in_yith_plugin' ) );


                static::$_actions_initialized = true;
            }
        }

        /**
         * Add yith-plugin-fw-panel in body classes in Panel pages
         *
         * @param $admin_body_classes
         *
         * @since  3.0.0
         * @author Leanza Francesco <leanzafrancesco@gmail.com>
         *
         * @return string
         */
        public static function add_body_class( $admin_body_classes ) {
            global $pagenow;
            if ( ( 'admin.php' == $pagenow && strpos( get_current_screen()->id, 'yith-plugins_page' ) !== false ) )
                $admin_body_classes = substr_count( $admin_body_classes, ' yith-plugin-fw-panel ' ) == 0 ? $admin_body_classes . ' yith-plugin-fw-panel ' : $admin_body_classes;

            return $admin_body_classes;
        }

        /**
         * Add Menu page link
         *
         * @return void
         * @since    1.0
         * @author   Andrea Grillo <andrea.grillo@yithemes.com>
         */
        public function add_menu_page() {
            global $admin_page_hooks;

            if ( !isset( $admin_page_hooks[ 'yith_plugin_panel' ] ) ) {
                $position   = apply_filters( 'yit_plugins_menu_item_position', '62.32' );
                $capability = apply_filters( 'yit_plugin_panel_menu_page_capability', 'manage_options' );
                $show       = apply_filters( 'yit_plugin_panel_menu_page_show', true );

                //  YITH text must not be translated
                if ( !!$show ) {
                    add_menu_page( 'yith_plugin_panel', 'YITH', $capability, 'yith_plugin_panel', null, yith_plugin_fw_get_default_logo(), $position );
                    $admin_page_hooks[ 'yith_plugin_panel' ] = 'yith-plugins'; // prevent issues for backward compatibility
                }
            }
        }

        /**
         * Remove duplicate submenu
         *
         * Submenu page hack: Remove the duplicate YIT Plugin link on subpages
         *
         * @return void
         * @since    1.0
         * @author   Andrea Grillo <andrea.grillo@yithemes.com>
         */
        public function remove_duplicate_submenu_page() {
            /* === Duplicate Items Hack === */
            remove_submenu_page( 'yith_plugin_panel', 'yith_plugin_panel' );
        }

        /**
         * Enqueue script and styles in admin side
         *
         * Add style and scripts to administrator
         *
         * @return void
         * @since    1.0
         * @author   Emanuela Castorina <emanuela.castorina@yithemes.it>
         * @author   Leanza Francesco <leanzafrancesco@gmail.com>
         */
        public function admin_enqueue_scripts() {
            global $pagenow;

            // enqueue styles only in the current panel page
            if ( 'admin.php' === $pagenow && strpos( get_current_screen()->id, $this->settings[ 'page' ] ) !== false || apply_filters( 'yit_plugin_panel_asset_loading', false ) ) {
                wp_enqueue_media();

                wp_enqueue_style( 'yith-plugin-fw-fields' );
                wp_enqueue_style( 'yit-jquery-ui-style' );
                wp_enqueue_style( 'raleway-font' );

                wp_enqueue_script( 'jquery-ui' );
                wp_enqueue_script( 'jquery-ui-core' );
                wp_enqueue_script( 'jquery-ui-dialog' );
                wp_enqueue_script( 'yith_how_to' );
                wp_enqueue_script( 'yith-plugin-fw-fields' );
            }

            if ( ( 'admin.php' == $pagenow && yith_plugin_fw_is_panel() ) || apply_filters( 'yit_plugin_panel_asset_loading', false ) ) {
                wp_enqueue_media();
                wp_enqueue_style( 'yit-plugin-style' );
                wp_enqueue_script( 'yit-plugin-panel' );
            }

            if ( 'admin.php' == $pagenow && strpos( get_current_screen()->id, 'yith_upgrade_premium_version' ) !== false ) {
                wp_enqueue_style( 'yit-upgrade-to-pro' );
                wp_enqueue_script( 'colorbox' );
            }

        }

        /**
         * Register Settings
         *
         * Generate wp-admin settings pages by registering your settings and using a few callbacks to control the output
         *
         * @return void
         * @since    1.0
         * @author   Emanuela Castorina <emanuela.castorina@yithemes.it>
         */
        public function register_settings() {
            register_setting( 'yit_' . $this->settings[ 'parent' ] . '_options', 'yit_' . $this->settings[ 'parent' ] . '_options', array( $this, 'options_validate' ) );
        }

        /**
         * Options Validate
         *
         * a callback function called by Register Settings function
         *
         * @param $input
         *
         * @return array validate input fields
         * @since    1.0
         * @author   Emanuela Castorina <emanuela.castorina@yithemes.it>
         */
        public function options_validate( $input ) {

            $current_tab = !empty( $input[ 'current_tab' ] ) ? $input[ 'current_tab' ] : 'general';

            $yit_options = $this->get_main_array_options();

            // default
            $valid_input = $this->get_options();

            $submit = ( !empty( $input[ 'submit-general' ] ) ? true : false );
            $reset  = ( !empty( $input[ 'reset-general' ] ) ? true : false );

            foreach ( $yit_options[ $current_tab ] as $section => $data ) {
                foreach ( $data as $option ) {
                    if ( isset( $option[ 'sanitize_call' ] ) && isset( $option[ 'id' ] ) ) { //yiw_debug($option, false);
                        if ( is_array( $option[ 'sanitize_call' ] ) ) :
                            foreach ( $option[ 'sanitize_call' ] as $callback ) {
                                if ( is_array( $input[ $option[ 'id' ] ] ) ) {
                                    $valid_input[ $option[ 'id' ] ] = array_map( $callback, $input[ $option[ 'id' ] ] );
                                } else {
                                    $valid_input[ $option[ 'id' ] ] = call_user_func( $callback, $input[ $option[ 'id' ] ] );
                                }
                            }
                        else :
                            if ( is_array( $input[ $option[ 'id' ] ] ) ) {
                                $valid_input[ $option[ 'id' ] ] = array_map( $option[ 'sanitize_call' ], $input[ $option[ 'id' ] ] );
                            } else {
                                $valid_input[ $option[ 'id' ] ] = call_user_func( $option[ 'sanitize_call' ], $input[ $option[ 'id' ] ] );
                            }
                        endif;
                    } else {
                        if ( isset( $option[ 'id' ] ) ) {
                            $value = isset( $input[ $option[ 'id' ] ] ) ? $input[ $option[ 'id' ] ] : false;
                            if ( isset( $option[ 'type' ] ) && in_array( $option[ 'type' ], array( 'checkbox', 'onoff' ) ) ) {
                                $value = yith_plugin_fw_is_true( $value ) ? 'yes' : 'no';
                            }

                            if ( !empty( $option[ 'yith-sanitize-callback' ] ) && is_callable( $option[ 'yith-sanitize-callback' ] ) ) {
                                $value = call_user_func( $option[ 'yith-sanitize-callback' ], $value );
                            }

                            $valid_input[ $option[ 'id' ] ] = $value;
                        }
                    }

                }
            }

            return $valid_input;
        }

        /**
         * Add Setting SubPage
         *
         * add Setting SubPage to wordpress administrator
         *
         * @return array validate input fields
         * @since    1.0
         * @author   Emanuela Castorina <emanuela.castorina@yithemes.it>
         */
        public function add_setting_page() {
            $this->settings[ 'icon_url' ] = isset( $this->settings[ 'icon_url' ] ) ? $this->settings[ 'icon_url' ] : '';
            $this->settings[ 'position' ] = isset( $this->settings[ 'position' ] ) ? $this->settings[ 'position' ] : null;
            $parent                       = $this->settings[ 'parent_slug' ] . $this->settings[ 'parent_page' ];

            if ( !empty( $parent ) ) {
                add_submenu_page( $parent, $this->settings[ 'page_title' ], $this->settings[ 'menu_title' ], $this->settings[ 'capability' ], $this->settings[ 'page' ], array( $this, 'yit_panel' ) );
            } else {
                add_menu_page( $this->settings[ 'page_title' ], $this->settings[ 'menu_title' ], $this->settings[ 'capability' ], $this->settings[ 'page' ], array( $this, 'yit_panel' ), $this->settings[ 'icon_url' ], $this->settings[ 'position' ] );
            }
            /* === Duplicate Items Hack === */
            $this->remove_duplicate_submenu_page();
            do_action( 'yit_after_add_settings_page' );


        }

        /**
         * Add Premium Version upgrade menu item
         *
         * @return   void
         * @since    2.9.13
         * @author   Andrea Grillo <andrea.grillo@yithemes.com>
         */
        public function add_premium_version_upgrade_to_menu() {
            /* === Add the How To menu item only if the customer haven't a premium version enabled === */
            if ( function_exists( 'YIT_Plugin_Licence' ) && !!YIT_Plugin_Licence()->get_products() ) {
                return;
            }

            global $submenu;
            if ( apply_filters( 'yit_show_upgrade_to_premium_version', isset( $submenu[ 'yith_plugin_panel' ] ) ) ) {
                $submenu[ 'yith_plugin_panel' ][ 'how_to' ] = array(
                    sprintf( '%s%s%s', '<span id="yith-how-to-premium">', __( 'How to install premium version', 'yith-plugin-fw' ), '</span>' ),
                    'install_plugins',
                    '//support.yithemes.com/hc/en-us/articles/217840988',
                    __( 'How to install premium version', 'yith-plugin-fw' ),
                );
            }
        }

        /**
         * Show a tabbed panel to setting page
         *
         * a callback function called by add_setting_page => add_submenu_page
         *
         * @return void
         * @since    1.0
         * @author   Emanuela Castorina <emanuela.castorina@yithemes.it>
         */
        public function yit_panel() {

            $tabs        = '';
            $current_tab = $this->get_current_tab();
            $yit_options = $this->get_main_array_options();
	        $premium_class = isset( $this->settings['class'] ) ? 'yith-premium' : 'premium';
	        $wrap_class = isset( $this->settings['class'] ) ? $this->settings['class'] : '';
        ?>
        <div class="wrap <?php echo $wrap_class?>">
            <?php
             do_action('yith_plugin_fw_before_yith_panel', $this->settings[ 'page' ] );
            // tabs
            foreach ( $this->settings[ 'admin-tabs' ] as $tab => $tab_value ) {
                $active_class = ( $current_tab == $tab ) ? ' nav-tab-active' : '';
                $active_class .= 'premium' == $tab ? ' '.$premium_class: '';
                $tabs         .= '<a class="nav-tab' . $active_class . '" href="?' . $this->settings[ 'parent_page' ] . '&page=' . $this->settings[ 'page' ] . '&tab=' . $tab . '">' . $tab_value . '</a>';
            }
            ?>
            <div id="icon-themes" class="icon32"><br/></div>
            <h2 class="nav-tab-wrapper">
                <?php echo $tabs ?>
            </h2>
            <?php
            $custom_tab_action = $this->is_custom_tab( $yit_options, $current_tab );
            if ( $custom_tab_action ) {
                $this->print_custom_tab( $custom_tab_action );

                return;
            }
            ?>
            <?php
            $panel_content_class = apply_filters( 'yit_admin_panel_content_class', 'yit-admin-panel-content-wrap' );
            ?>
            <div id="wrap" class="yith-plugin-fw plugin-option yit-admin-panel-container">
                <?php $this->message(); ?>
                <div class="<?php echo $panel_content_class; ?>">
                    <h2><?php echo $this->get_tab_title() ?></h2>
                    <?php if ( $this->is_show_form() ) : ?>
                        <form id="yith-plugin-fw-panel" method="post" action="options.php">
                            <?php do_settings_sections( 'yit' ); ?>
                            <p>&nbsp;</p>
                            <?php settings_fields( 'yit_' . $this->settings[ 'parent' ] . '_options' ); ?>
                            <input type="hidden" name="<?php echo $this->get_name_field( 'current_tab' ) ?>" value="<?php echo esc_attr( $current_tab ) ?>"/>
                            <input type="submit" class="button-primary" value="<?php _e( 'Save Changes', 'yith-plugin-fw' ) ?>" style="float:left;margin-right:10px;"/>
                        </form>
                        <form method="post">
                            <?php $warning = __( 'If you continue with this action, you will reset all options in this page.', 'yith-plugin-fw' ) ?>
                            <input type="hidden" name="yit-action" value="reset"/>
                            <input type="submit" name="yit-reset" class="button-secondary" value="<?php _e( 'Reset to default', 'yith-plugin-fw' ) ?>"
                                   onclick="return confirm('<?php echo $warning . '\n' . __( 'Are you sure?', 'yith-plugin-fw' ) ?>');"/>
                        </form>
                        <p>&nbsp;</p>
                    <?php endif ?>
                </div>
            </div>
        </div>
            <?php
        }

        public function is_custom_tab( $options, $current_tab ) {
            foreach ( $options[ $current_tab ] as $section => $option ) {
                if ( isset( $option[ 'type' ] ) && isset( $option[ 'action' ] ) && 'custom_tab' == $option[ 'type' ] && !empty( $option[ 'action' ] ) ) {
                    return $option[ 'action' ];
                } else {
                    return false;
                }
            }

            return false;
        }

        /**
         * Fire the action to print the custom tab
         *
         *
         * @param string $action Action to fire
         *
         * @return void
         * @since    1.0
         * @author   Andrea Grillo <andrea.grillo@yithemes.com>
         * @author   Leanza Francesco <leanzafrancesco@gmail.com>
         */
        public function print_custom_tab( $action ) {
            do_action( $action );
        }

        /**
         * Add sections and fields to setting panel
         *
         * read all options and show sections and fields
         *
         * @return void
         * @since    1.0
         * @author   Emanuela Castorina <emanuela.castorina@yithemes.it>
         */
        public function add_fields() {
            $yit_options = $this->get_main_array_options();
            $current_tab = $this->get_current_tab();

            if ( !$current_tab ) {
                return;
            }
            foreach ( $yit_options[ $current_tab ] as $section => $data ) {
                add_settings_section( "yit_settings_{$current_tab}_{$section}", $this->get_section_title( $section ), $this->get_section_description( $section ), 'yit' );
                foreach ( $data as $option ) {
                    if ( isset( $option[ 'id' ] ) && isset( $option[ 'type' ] ) && isset( $option[ 'name' ] ) ) {
                        add_settings_field( "yit_setting_" . $option[ 'id' ], $option[ 'name' ], array( $this, 'render_field' ), 'yit', "yit_settings_{$current_tab}_{$section}", array( 'option' => $option, 'label_for' => $this->get_id_field( $option[ 'id' ] ) ) );
                    }
                }
            }
        }


        /**
         * Add the tabs to admin bar menu
         *
         * set all tabs of settings page on wp admin bar
         *
         * @return void|array return void when capability is false
         * @since  1.0
         * @author Emanuela Castorina <emanuela.castorina@yithemes.it>
         */
        public function add_admin_bar_menu() {

            global $wp_admin_bar;

            if ( !current_user_can( 'manage_options' ) ) {
                return;
            }

            if ( ! empty( $this->settings[ 'admin_tabs' ] ) ) {
                foreach ( $this->settings[ 'admin-tabs' ] as $item => $title ) {

                    $wp_admin_bar->add_menu( array(
                                                 'parent' => $this->settings[ 'parent' ],
                                                 'title'  => $title,
                                                 'id'     => $this->settings[ 'parent' ] . '-' . $item,
                                                 'href'   => admin_url( 'themes.php' ) . '?page=' . $this->settings[ 'parent_page' ] . '&tab=' . $item
                                             ) );
                }
            }
        }


        /**
         * Get current tab
         *
         * get the id of tab showed, return general is the current tab is not defined
         *
         * @return string
         * @since  1.0
         * @author Emanuela Castorina <emanuela.castorina@yithemes.it>
         */
        function get_current_tab() {
            $admin_tabs = array_keys( $this->settings[ 'admin-tabs' ] );

            if ( !isset( $_GET[ 'page' ] ) || $_GET[ 'page' ] != $this->settings[ 'page' ] ) {
                return false;
            }
            if ( isset( $_REQUEST[ 'yit_tab_options' ] ) ) {
                return $_REQUEST[ 'yit_tab_options' ];
            } elseif ( isset( $_GET[ 'tab' ] ) && isset( $this->_tabs_path_files[ $_GET[ 'tab' ] ] ) ) {
                return $_GET[ 'tab' ];
            } elseif ( isset( $admin_tabs[ 0 ] ) ) {
                return $admin_tabs[ 0 ];
            } else {
                return 'general';
            }
        }


        /**
         * Message
         *
         * define an array of message and show the content od message if
         * is find in the query string
         *
         * @return void
         * @since  1.0
         * @author Emanuela Castorina <emanuela.castorina@yithemes.it>
         */
        public function message() {

            $message = array(
                'element_exists'   => $this->get_message( '<strong>' . __( 'The element you have entered already exists. Please, enter another name.', 'yith-plugin-fw' ) . '</strong>', 'error', false ),
                'saved'            => $this->get_message( '<strong>' . __( 'Settings saved', 'yith-plugin-fw' ) . '.</strong>', 'updated', false ),
                'reset'            => $this->get_message( '<strong>' . __( 'Settings reset', 'yith-plugin-fw' ) . '.</strong>', 'updated', false ),
                'delete'           => $this->get_message( '<strong>' . __( 'Element deleted correctly.', 'yith-plugin-fw' ) . '</strong>', 'updated', false ),
                'updated'          => $this->get_message( '<strong>' . __( 'Element updated correctly.', 'yith-plugin-fw' ) . '</strong>', 'updated', false ),
                'settings-updated' => $this->get_message( '<strong>' . __( 'Element updated correctly.', 'yith-plugin-fw' ) . '</strong>', 'updated', false ),
                'imported'         => $this->get_message( '<strong>' . __( 'Database imported correctly.', 'yith-plugin-fw' ) . '</strong>', 'updated', false ),
                'no-imported'      => $this->get_message( '<strong>' . __( 'An error has occurred during import. Please try again.', 'yith-plugin-fw' ) . '</strong>', 'error', false ),
                'file-not-valid'   => $this->get_message( '<strong>' . __( 'The added file is not valid.', 'yith-plugin-fw' ) . '</strong>', 'error', false ),
                'cant-import'      => $this->get_message( '<strong>' . __( 'Sorry, import is disabled.', 'yith-plugin-fw' ) . '</strong>', 'error', false ),
                'ord'              => $this->get_message( '<strong>' . __( 'Sorting successful.', 'yith-plugin-fw' ) . '</strong>', 'updated', false )
            );

            foreach ( $message as $key => $value ) {
                if ( isset( $_GET[ $key ] ) ) {
                    echo $message[ $key ];
                }
            }

        }

        /**
         * Get Message
         *
         * return html code of message
         *
         * @param        $message
         * @param string $type can be 'error' or 'updated'
         * @param bool   $echo
         *
         * @return void|string
         * @since  1.0
         * @author Emanuela Castorina <emanuela.castorina@yithemes.it>
         */
        public function get_message( $message, $type = 'error', $echo = true ) {
            $message = '<div id="message" class="' . $type . ' fade"><p>' . $message . '</p></div>';
            if ( $echo ) {
                echo $message;
            }

            return $message;
        }


        /**
         * Get Tab Path Files
         *
         * return an array with filenames of tabs
         *
         * @return array
         * @since    1.0
         * @author   Emanuela Castorina <emanuela.castorina@yithemes.it>
         */
        function get_tabs_path_files() {

            $option_files_path = $this->settings[ 'options-path' ] . '/';

            $tabs = array();

            foreach ( ( array ) glob( $option_files_path . '*.php' ) as $filename ) {
                preg_match( '/(.*)-options\.(.*)/', basename( $filename ), $filename_parts );

                if ( !isset( $filename_parts[ 1 ] ) ) {
                    continue;
                }

                $tab = $filename_parts[ 1 ];

                $tabs[ $tab ] = $filename;
            }

            return $tabs;
        }

        /**
         * Get main array options
         *
         * return an array with all options defined on options-files
         *
         * @return array
         * @since    1.0
         * @author   Emanuela Castorina <emanuela.castorina@yithemes.it>
         */
        function get_main_array_options() {
            if ( !empty( $this->_main_array_options ) ) {
                return $this->_main_array_options;
            }

            $options_path = $this->settings[ 'options-path' ];

            foreach ( $this->settings[ 'admin-tabs' ] as $item => $v ) {
                $path = $options_path . '/' . $item . '-options.php';
                $path = apply_filters( 'yith_plugin_panel_item_options_path', $path, $options_path, $item, $this );
                if ( file_exists( $path ) ) {
                    $this->_main_array_options = array_merge( $this->_main_array_options, include $path );
                }
            }

            return $this->_main_array_options;
        }


        /**
         * Set an array with all default options
         *
         * put default options in an array
         *
         * @return array
         * @since  1.0
         * @author Emanuela Castorina <emanuela.castorina@yithemes.it>
         */
        public function get_default_options() {
            $yit_options     = $this->get_main_array_options();
            $default_options = array();

            foreach ( $yit_options as $tab => $sections ) {
                foreach ( $sections as $section ) {
                    foreach ( $section as $id => $value ) {
                        if ( isset( $value[ 'std' ] ) && isset( $value[ 'id' ] ) ) {
                            $default_options[ $value[ 'id' ] ] = $value[ 'std' ];
                        }
                    }
                }
            }

            unset( $yit_options );

            return $default_options;
        }


        /**
         * Get the title of the tab
         *
         * return the title of tab
         *
         * @return string
         * @since    1.0
         * @author   Emanuela Castorina <emanuela.castorina@yithemes.it>
         */
        function get_tab_title() {
            $yit_options = $this->get_main_array_options();
            $current_tab = $this->get_current_tab();

            foreach ( $yit_options[ $current_tab ] as $sections => $data ) {
                foreach ( $data as $option ) {
                    if ( isset( $option[ 'type' ] ) && $option[ 'type' ] == 'title' ) {
                        return $option[ 'name' ];
                    }
                }
            }
        }

        /**
         * Get the title of the section
         *
         * return the title of section
         *
         * @param $section
         *
         * @return string
         * @since    1.0
         * @author   Emanuela Castorina <emanuela.castorina@yithemes.it>
         */
        function get_section_title( $section ) {
            $yit_options = $this->get_main_array_options();
            $current_tab = $this->get_current_tab();

            foreach ( $yit_options[ $current_tab ][ $section ] as $option ) {
                if ( isset( $option[ 'type' ] ) && $option[ 'type' ] == 'section' ) {
                    return $option[ 'name' ];
                }
            }
        }

        /**
         * Get the description of the section
         *
         * return the description of section if is set
         *
         * @param $section
         *
         * @return string
         * @since    1.0
         * @author   Emanuela Castorina <emanuela.castorina@yithemes.it>
         */
        function get_section_description( $section ) {
            $yit_options = $this->get_main_array_options();
            $current_tab = $this->get_current_tab();

            foreach ( $yit_options[ $current_tab ][ $section ] as $option ) {
                if ( isset( $option[ 'type' ] ) && $option[ 'type' ] == 'section' && isset( $option[ 'desc' ] ) ) {
                    return '<p>' . $option[ 'desc' ] . '</p>';
                }
            }
        }


        /**
         * Show form when necessary
         *
         * return true if 'showform' is not defined
         *
         * @return bool
         * @since  1.0
         * @author Emanuela Castorina <emanuela.castorina@yithemes.it>
         */
        function is_show_form() {
            $yit_options = $this->get_main_array_options();
            $current_tab = $this->get_current_tab();

            foreach ( $yit_options[ $current_tab ] as $sections => $data ) {
                foreach ( $data as $option ) {
                    if ( !isset( $option[ 'type' ] ) || $option[ 'type' ] != 'title' ) {
                        continue;
                    }
                    if ( isset( $option[ 'showform' ] ) ) {
                        return $option[ 'showform' ];
                    } else {
                        return true;
                    }
                }
            }
        }

        /**
         * Get name field
         *
         * return a string with the name of the input field
         *
         * @param string $name
         *
         * @return string
         * @since  1.0
         * @author Emanuela Castorina <emanuela.castorina@yithemes.it>
         */
        function get_name_field( $name = '' ) {
            return 'yit_' . $this->settings[ 'parent' ] . '_options[' . $name . ']';
        }

        /**
         * Get id field
         *
         * return a string with the id of the input field
         *
         * @param string $id
         *
         * @return string
         * @since  1.0
         * @author Emanuela Castorina <emanuela.castorina@yithemes.it>
         */
        function get_id_field( $id ) {
            return 'yit_' . $this->settings[ 'parent' ] . '_options_' . $id;
        }


        /**
         * Render the field showed in the setting page
         *
         * include the file of the option type, if file do not exists
         * return a text area
         *
         * @param array $param
         *
         * @return void
         * @since  1.0
         * @author Emanuela Castorina <emanuela.castorina@yithemes.it>
         */
        function render_field( $param ) {

            if ( !empty( $param ) && isset( $param [ 'option' ] ) ) {
                $option     = $param [ 'option' ];
                $db_options = $this->get_options();

                $custom_attributes = array();

                if ( !empty( $option[ 'custom_attributes' ] ) && is_array( $option[ 'custom_attributes' ] ) ) {
                    foreach ( $option[ 'custom_attributes' ] as $attribute => $attribute_value ) {
                        $custom_attributes[] = esc_attr( $attribute ) . '="' . esc_attr( $attribute_value ) . '"';
                    }
                }

                $custom_attributes = implode( ' ', $custom_attributes );
                $std               = isset( $option[ 'std' ] ) ? $option[ 'std' ] : '';
                $db_value          = ( isset( $db_options[ $option[ 'id' ] ] ) ) ? $db_options[ $option[ 'id' ] ] : $std;

                if ( isset( $option[ 'deps' ] ) )
                    $deps = $option[ 'deps' ];

                if ( 'on-off' === $option[ 'type' ] )
                    $option[ 'type' ] = 'onoff';

                if ( $field_template_path = yith_plugin_fw_get_field_template_path( $option ) ) {
                    $field_container_path = apply_filters( 'yith_plugin_fw_panel_field_container_template_path', YIT_CORE_PLUGIN_TEMPLATE_PATH . '/panel/panel-field-container.php', $option );
                    file_exists( $field_container_path ) && include( $field_container_path );
                } else {
                    do_action( "yit_panel_{$option['type']}", $option, $db_value, $custom_attributes );
                }
            }
        }

        /**
         * Get options from db
         *
         * return the options from db, if the options aren't defined in the db,
         * get the default options ad add the options in the db
         *
         * @return array
         * @since  1.0
         * @author Emanuela Castorina <emanuela.castorina@yithemes.it>
         */
        public function get_options() {
            $options = get_option( 'yit_' . $this->settings[ 'parent' ] . '_options' );
            if ( $options === false || ( isset( $_REQUEST[ 'yit-action' ] ) && $_REQUEST[ 'yit-action' ] == 'reset' ) ) {
                $options = $this->get_default_options();
            }

            return $options;
        }

        /**
         * Show a box panel with specific content in two columns as a new woocommerce type
         *
         *
         * @param array $args
         *
         * @return   void
         * @since    1.0
         * @author   Emanuela Castorina      <emanuela.castorina@yithemes.com>
         */
        public static function add_infobox( $args = array() ) {
            if ( !empty( $args ) ) {
                extract( $args );
                require_once( YIT_CORE_PLUGIN_TEMPLATE_PATH . '/panel/boxinfo.php' );
            }
        }

        /**
         * Show a box panel with specific content in two columns as a new woocommerce type
         *
         * @deprecated 3.0.12 Do nothing! Method left to prevent Fatal Error if called directly
         *
         * @param array $args
         *
         * @return   void
         */
        public static function add_videobox( $args = array() ) {

        }

        /**
         * Fire the action to print the custom tab
         *
         * @deprecated 3.0.12 Do nothing! Method left to prevent Fatal Error if called directly
         * @return void
         */
        public function print_video_box() {

        }

        /**
         * sort plugins by name in YITH Plugins menu
         *
         * @since    3.0.0
         * @author   Leanza Francesco <leanzafrancesco@gmail.com>
         */
        public static function sort_plugins() {
            global $submenu;
            if ( !empty( $submenu[ 'yith_plugin_panel' ] ) ) {
                $sorted_plugins = $submenu[ 'yith_plugin_panel' ];

                usort( $sorted_plugins, function ( $a, $b ) {
                    return strcmp( current( $a ), current( $b ) );
                } );

                $submenu[ 'yith_plugin_panel' ] = $sorted_plugins;
            }
        }

        /**
         * add menu class in YITH Plugins menu
         *
         * @since    3.0.0
         * @author   Leanza Francesco <leanzafrancesco@gmail.com>
         */
        public static function add_menu_class_in_yith_plugin( $menu ) {
            global $submenu;

            if ( !empty( $submenu[ 'yith_plugin_panel' ] ) ) {
                $item_count = count( $submenu[ 'yith_plugin_panel' ] );
                $columns    = absint( $item_count / 20 ) + 1;
                $columns    = max( 1, min( $columns, 3 ) );
                $columns    = apply_filters( 'yith_plugin_fw_yith_plugins_menu_columns', $columns, $item_count );

                if ( $columns > 1 ) {
                    $class = "yith-plugin-fw-menu-$columns-columns";
                    foreach ( $menu as $order => $top ) {
                        if ( 'yith_plugin_panel' === $top[ 2 ] ) {
                            $c                   = $menu[ $order ][ 4 ];
                            $menu[ $order ][ 4 ] = add_cssclass( $class, $c );
                            break;
                        }
                    }
                }
            }

            return $menu;
        }

        /**
         * Check if inside the admin tab there's the premium tab to
         * check if the plugin is a free or not
         *
         * @author Emanuela Castorina
         */
	    function is_free() {
		    return  ( ! empty( $this->settings['admin-tabs'] ) && isset($this->settings['admin-tabs']['premium']));
	    }

	    /**
	     * Add plugin banner
	     */
	    public function add_plugin_banner( $page ) {

		    if ( $page != $this->settings['page'] || ! isset( $this->settings['class'] ) ) {
			    return;
		    }

		    if( $this->is_free() && isset( $this->settings['plugin_slug'] ) ):
			    $banners = apply_filters( 'yith_plugin_fw_banners_free', array(
				    'upgrade' => array(
					    'image'  => YIT_CORE_PLUGIN_URL. '/assets/images/upgrade_banner.png',
					    'link' => 'https://yithemes.com/themes/plugins/'.$this->settings['plugin_slug'],
				    ),
				    'rate'    => array(
					    'image'  => YIT_CORE_PLUGIN_URL. '/assets/images/rate_banner.png',
					    'link' => 'https://wordpress.org/plugins/'.$this->settings['plugin_slug'].'/reviews/#new-post',
				    ),
			    ), $page );
			    ?>
                <h1 class="notice-container"></h1>
                <div class="yith-plugin-fw-banner yith-plugin-fw-banner-free">
                    <h1><?php echo esc_html( $this->settings['page_title'] ) ?></h1>
				    <?php if( $banners ) : ?>
                        <div class="yith-banners">
                            <ul>
							    <?php foreach ( $banners as $banner ): ?>
                                    <li><a href="<?php echo esc_url( $banner['link'])?>" target="_blank"><img src="<?php echo esc_url( $banner['image'])?>"></a></li>
							    <?php endforeach; ?>
                            </ul>
                        </div>

				    <?php endif ?>
                </div>
		    <?php else: ?>
                <h1 class="notice-container"></h1>
                <div class="yith-plugin-fw-banner">
                    <h1><?php echo esc_html( $this->settings['page_title'] ) ?>
					    <?php if ( isset( $this->settings['plugin_description'] ) ): ?>
                            <span><?php echo esc_html( $this->settings['plugin_description'] ) ?></span>
					    <?php endif ?>
                    </h1>
                </div>

		    <?php endif ?>
		    <?php
	    }

	    /**
	     * Add additional element after print the field.
	     *
	     *@since 3.2
	     *@author Emanuela Castorina
	     */
	    public function add_yith_ui( $field ) {

		    global $pagenow;

		    if ( ! isset( $this->settings['class'] ) || empty( $this->settings['class'] ) || ! isset( $field['type'] ) ) {
			    return;
		    }
		    if ( 'admin.php' === $pagenow && strpos( get_current_screen()->id, $this->settings['page'] ) !== false ) {
			    switch ( $field['type'] ) {
				    case 'datepicker':
					    echo '<span class="yith-icon icon-calendar"></span>';
					    break;
				    default:
					    break;
			    }
		    }
	    }

	    /**
         *
         */
	    public function save_toggle_element_options(  ) {
            return true;
	    }
    }


}