<?php
if (!defined('ABSPATH'))
    exit; // Exit if accessed directly

include_once( ABSPATH . 'wp-admin/includes/plugin.php' );

if (!class_exists('AMP_Init')) {

    class AMP_Init {

        // When plugin is activated
        public static function activate() {
            $plugin_version = plugin_get_version();
            MAMP_Model::writeInstallationStatusActivated(array('plugin_version' => $plugin_version));
        }

        // When plugin is de-activated
        public static function deactivate() {
            MAMP_Model::updateInstallationStatus(0);
        }

        // When plugin is uninstalled
        public static function uninstall() {
            MAMP_Model::updateInstallationStatus(2);
            self::removeTables();
        }
        
        // When plugin is upgraded
        public static function upgrade(){
            $amp_supremacy_stat_id = get_option('amp_supremacy_stat_id', -1);
            $plugin_version = plugin_get_version();
            if($amp_supremacy_stat_id == -1){
                MAMP_Model::writeInstallationStatusActivated(array('plugin_version' => $plugin_version));
            } else {
                MAMP_Model::updateInstallationStatus(null, $plugin_version);
            }
        }
        
        // Endpoint
        public static function addEndPoint() {
            add_rewrite_endpoint('amp', EP_ALL);
            add_rewrite_endpoint('amp', EP_PERMALINK);
            flush_rewrite_rules();
        }

        // Init hooks
        public static function hooks() {
            add_action('admin_menu', array('AMP_Init', 'createPages'));
            add_action('admin_init', array('AMP_Init', 'loadAssets'));
            add_action('init', array('AMP_Init', 'addEndPoint'));

            // AMP_Post
            add_action('admin_post_amp_save_options', array('AMP_Post', 'saveOptions'));
            add_action('admin_enqueue_scripts', array('AMP_Init', 'my_plugin_assets_in_admin'));
            add_action( 'admin_notices', array('AMP_Init', 'get_amp_sitemap_notice') );
        }

        // Register all Scripts and Styles that are being used somewhere
        public static function loadAssets() {
            // Scripts
            wp_register_script('amp_uikit', AMP_URL . 'assets/js/uikit/uikit.min.js', array('jquery'), true);
            wp_register_script('amp_uikit_notify', AMP_URL . 'assets/js/uikit/components/notify.min.js', array('jquery'), true);
            wp_register_script('amp_uikit_accordion', AMP_URL . 'assets/js/uikit/components/accordion.min.js', array('jquery'), true);
            wp_register_script('amp_uikit_lightbox', AMP_URL . 'assets/js/uikit/components/lightbox.min.js', array('jquery'), true);
            wp_register_script('amp_ajaxq', AMP_URL . 'assets/js/ajaxq.js', array('jquery'), true);
            wp_register_script('amp_spectrum', AMP_URL . 'assets/js/vendor/spectrum.js', array('jquery'), true);

            wp_register_script('amp_uikit_tooltip', AMP_URL . 'assets/js/uikit/components/tooltip.min.js', array('jquery'), true);

            // Page Specific Scripts

            /** Load Global JS * */
            wp_register_script('amp_main', AMP_URL . 'assets/js/main.js', array('jquery'), true);

            /**
             *  Add a global JS object to main script
             */
            wp_localize_script('amp_main', 'amp_data', array(
                'wp_get' => admin_url('admin-ajax.php'),
                'wp_post' => admin_url('admin-post.php'),
                'plugins_url' => plugins_url()
                    )
            );

            // Styles
            wp_register_style('amp_uikit', AMP_URL . 'assets/css/uikit/uikit.gradient.min.css');
            wp_register_style('amp_uikit_progress', AMP_URL . 'assets/css/uikit/components/progress.gradient.min.css');
            wp_register_style('amp_uikit_notify', AMP_URL . 'assets/css/uikit/components/notify.min.css');
            wp_register_style('amp_font-awesome', AMP_URL . 'assets/css/vendor/font-awesome.min.css');
            wp_register_style('amp_spectrum', AMP_URL . 'assets/css/vendor/spectrum.css');
            wp_register_style('amp_main', AMP_URL . 'assets/css/main.css');
        }
        
        public static function my_plugin_assets_in_admin() {
            wp_enqueue_script( 'amp_admin_js', AMP_URL . 'assets/js/amp_admin.js', array( 'jquery' ), '1.0', true  );
        }

        // Create Admin Menu Pages
        public static function createPages() {
            global $amp_pages, $global_js, $global_css;
            foreach ($amp_pages as $p) {
                $page_hook_suffix = null;
                if ($p['Type'] == 'MENU') {
                    $page_hook_suffix = add_menu_page($p['Page_Title'], $p['Menu_Title'], $p['Capability'], $p['Slug'], array('AMP_Init', 'loadPage'), AMP_URL . $p['Icon']);
                } else {
                    $page_hook_suffix = add_submenu_page($p['Parent_Slug'], $p['Page_Title'], $p['Menu_Title'], $p['Capability'], $p['Slug'], array('AMP_Init', 'loadPage'));
                }
                add_action('admin_print_scripts-' . $page_hook_suffix, function() use($p, $global_js) {
                    foreach ($global_js as $enqueueName) {
                        wp_enqueue_script($enqueueName);
                    }
                    foreach ($p['JavaScript'] as $enqueueName) {
                        wp_enqueue_script($enqueueName);
                    }
                });
                add_action('admin_print_styles-' . $page_hook_suffix, function() use($p, $global_css) {
                    foreach ($global_css as $enqueueName) {
                        wp_enqueue_style($enqueueName);
                    }
                    foreach ($p['Css'] as $enqueueName) {
                        wp_enqueue_style($enqueueName);
                    }
                });
            }
            add_action( 'admin_enqueue_scripts', function(){
                $screen = get_current_screen();
                if ( 'toplevel_page_amp-settings' == $screen->base ) {
                     wp_enqueue_media();
                 } else return;
            });
        }

        // Load a Page
        public static function loadPage() {
            $page = $_GET['page'];
            $page = 'page_' . str_replace('amp-', '', $page) . '.php';
            $page = AMP_PATH . '/pages/' . $page;
            if (file_exists($page)) {
                require_once ( $page );
            } else {
                echo "<h1>404 - Page not Found!</h1>";
            }
        }

        // Verify if site has what it takes to run a plugin
        public static function verify_requirements() {
            global $wp_version;
            if (version_compare(PHP_VERSION, AMP_REQUIRED_PHP_VERSION, '<')) {
                return false;
            }
            if (version_compare($wp_version, AMP_REQUIRED_WP_VERSION, '<')) {
                return false;
            }
            if (is_multisite() != AMP_REQUIRED_WP_NETWORK) {
                return false;
            }

            return true;
        }

        // Load all Models and init them
        public static function loadModels() {
            $models = glob(AMP_PATH . '/models/wp_*');
            foreach ($models as $m) {
                require_once ( $m );

                // Init the model
                $x = explode('wp_', $m);
                $class = 'MAMP_' . ucfirst(str_replace('.php', '', $x[1]));
                if (method_exists($class, 'initialize')) {
                    call_user_func(array($class, 'initialize'));
                }
            }
        }

        // Create/Modify Tables
        public static function createTables() {
            $models = glob(AMP_PATH . '/models/wp_*');
            foreach ($models as $m) {
                $x = explode('wp_', $m);
                $class = 'MAMP_' . ucfirst(str_replace('.php', '', $x[1]));

                if (method_exists($class, 'createTable')) {
                    call_user_func(array($class, 'createTable'));
                }
            }
        }

        // Remove Tables
        public static function removeTables() {
            $models = glob(AMP_PATH . '/models/wp_*');
            foreach ($models as $m) {

                require_once ( $m );

                $x = explode('wp_', $m);
                $class = 'MAMP_' . ucfirst(str_replace('.php', '', $x[1]));
                if (method_exists($class, 'removeTable')) {
                    call_user_func(array($class, 'removeTable'));
                }
            }
        }

        // Init the plugin
        public static function init() {
            // Init the models
            self::loadModels();

            // Init the hooks
            self::hooks();
        }

        public static function addMetaTag() {
            $amps = get_option('amps');
            if (!empty($amps['site_verification'])) {
                echo '<meta name="google-site-verification" content="' . $amps['site_verification'] . '" />';
            }
        }

        public static function register_advanced_amp() {
            global $wpdb;
            $email = $_POST['email'];

            $domain = parse_url(get_site_url());
            $this_domain = preg_replace('#^www\.(.+\.)#i', '$1', $domain['host']);
            $ch = curl_init();

            curl_setopt($ch, CURLOPT_URL, "http://sitemap.ampsupremacy.com/api/index.php");
            curl_setopt($ch, CURLOPT_POST, 1);

            curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query(array('email' => $email, 'domain' => $this_domain, 'action' => 'register')));

            // receive server response ...
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

            $server_output = curl_exec($ch);

            echo $server_output;

            curl_close($ch);

            wp_die();
        }

        public static function get_registration_status() {

            $domain = parse_url(get_site_url());
            $this_domain = preg_replace('#^www\.(.+\.)#i', '$1', $domain['host']);

            $ch = curl_init();
            curl_setopt($ch, CURLOPT_URL, "http://sitemap.ampsupremacy.com/api/index.php");
            curl_setopt($ch, CURLOPT_POST, 1);

            curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query(array('domain' => $this_domain, 'action' => 'registered')));

            // receive server response ...
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
            $server_output = curl_exec($ch);

            curl_close($ch);

            return $server_output;
        }

        public static function get_amp_sitemap_notice() {
            if(!isset($_COOKIE['amp_sitemap_admin_notice_cookie']) || $_COOKIE['amp_sitemap_admin_notice_cookie'] != 0){
                $amp_sitemap_exists = file_exists(ABSPATH.'wp-content/plugins/amp-supremacy-sitemap');
                $amp_supremacy_url = get_site_url().'/wp-admin/admin.php?page=amp-settings';
                if(!$amp_sitemap_exists){
                   echo '<div class="notice is-dismissible amp-sitemap-notice" style="background-color: #FCF8E3; border: 1px solid #FAEBCC; color: #8A6D3B;">
                         <p><a href="'.$amp_supremacy_url.'" style="text-decoration:none;"><b>AMP Supremacy Lite</b></a>:  Install it for free and get AMP Sitemap and AMP Google Analytics!</p>
                     </div>'; 
                } 
            }
        }
        
        public static function amp_settings_plugin_action_links( $links ){
            array_unshift( $links, '<a href="admin.php?page=amp-settings">' . __( 'Settings', 'amp-supremacy' ) . '</a>' );
            return $links;
        }
    }

}