<?php
class WPEditor {

	public function install() {

		global $wpdb;
		$prefix = $this->get_table_prefix();
		$sqlFile = WPEDITOR_PATH . 'sql/database.sql';
		$sql = str_replace( '[prefix]', $prefix, file_get_contents( $sqlFile ) );
		$queries = explode( ";\n", $sql );
		$wpdb->hide_errors();
		foreach ( $queries as $sql ) {
			if ( strlen( $sql ) > 5 ) {
				$wpdb->query( $sql );
			}
		}

		// Set the version number for this version of WPEditor
		require_once( WPEDITOR_PATH . 'classes/WPEditorSetting.php' );
		WPEditorSetting::set_value( 'version', WPEDITOR_VERSION_NUMBER );

		if ( ! WPEditorSetting::get_value( 'upgrade' ) ) {
			$this->first_install();
		}

	}

	public function first_install() {

		// Set the database to upgrade instead of first time install
		WPEditorSetting::set_value( 'upgrade', 1 );

		// Check if the post editor has been enabled and enable if not
		if ( ! WPEditorSetting::get_value( 'enable_post_editor' ) ) {
			WPEditorSetting::set_value( 'enable_post_editor', 1 );
		}

		// Check if the plugin and theme editors have been hidden before and hide them if not
		if ( ! WPEditorSetting::get_value( 'hide_default_plugin_editor' ) ) {
			WPEditorSetting::set_value( 'hide_default_plugin_editor', 1 );
		}
		if ( ! WPEditorSetting::get_value( 'hide_default_theme_editor' ) ) {
			WPEditorSetting::set_value( 'hide_default_theme_editor', 1 );
		}

		// Check if the edit link for plugins has been hidden before and hide if not
		if ( ! WPEditorSetting::get_value( 'replace_plugin_edit_links' ) ) {
			WPEditorSetting::set_value( 'replace_plugin_edit_links', 1 );
		}

		// Check if the plugin line numbers have been disabled and enable if not
		if ( ! WPEditorSetting::get_value( 'enable_plugin_line_numbers' ) ) {
			WPEditorSetting::set_value( 'enable_plugin_line_numbers', 1 );
		}

		// Check if the theme line numbers have been disabled and enable if not
		if ( ! WPEditorSetting::get_value( 'enable_theme_line_numbers' ) ) {
			WPEditorSetting::set_value( 'enable_theme_line_numbers', 1 );
		}

		// Check if the post line numbers have been disabled and enable if not
		if ( ! WPEditorSetting::get_value( 'enable_post_line_numbers' ) ) {
			WPEditorSetting::set_value( 'enable_post_line_numbers', 1 );
		}

		// Check if plugin line wrapping has been disabled and enable if not
		if ( ! WPEditorSetting::get_value( 'enable_plugin_line_wrapping' ) ) {
			WPEditorSetting::set_value( 'enable_plugin_line_wrapping', 1 );
		}

		// Check if theme line wrapping has been disabled and enable if not
		if ( ! WPEditorSetting::get_value( 'enable_theme_line_wrapping' ) ) {
			WPEditorSetting::set_value( 'enable_theme_line_wrapping', 1 );
		}

		// Check if post line wrapping has been disabled and enable if not
		if ( ! WPEditorSetting::get_value( 'enable_post_line_wrapping' ) ) {
			WPEditorSetting::set_value( 'enable_post_line_wrapping', 1 );
		}

		// Check if plugin active line highlighting has been disabled and enable if not
		if ( ! WPEditorSetting::get_value( 'enable_plugin_active_line' ) ) {
			WPEditorSetting::set_value( 'enable_plugin_active_line', 1 );
		}

		// Check if theme active line highlighting has been disabled and enable if not
		if ( ! WPEditorSetting::get_value( 'enable_theme_active_line' ) ) {
			WPEditorSetting::set_value( 'enable_theme_active_line', 1 );
		}

		// Check if post active line highlighting has been disabled and enable if not
		if ( ! WPEditorSetting::get_value( 'enable_post_active_line' ) ) {
			WPEditorSetting::set_value( 'enable_post_active_line', 1 );
		}

		// Check if the default allowed extensions for the plugin editor have been set and set if not
		if ( ! WPEditorSetting::get_value( 'plugin_editor_allowed_extensions' ) ) {
			WPEditorSetting::set_value( 'plugin_editor_allowed_extensions', 'php~js~css~txt~htm~html~jpg~jpeg~png~gif~sql~po~less~xml' );
		}

		// Check if the default allowed extensions for the theme editor have been set and set if not
		if ( ! WPEditorSetting::get_value( 'theme_editor_allowed_extensions' ) ) {
			WPEditorSetting::set_value( 'theme_editor_allowed_extensions', 'php~js~css~txt~htm~html~jpg~jpeg~png~gif~sql~po~less~xml' );
		}

		// Check if the upload plugin file option has been set and set if not
		if ( ! WPEditorSetting::get_value( 'plugin_file_upload' ) ) {
			WPEditorSetting::set_value( 'plugin_file_upload', 1 );
		}

		// Check if the upload theme file option has been set and set if not
		if ( ! WPEditorSetting::get_value( 'theme_file_upload' ) ) {
			WPEditorSetting::set_value( 'theme_file_upload', 1 );
		}

		// Check if the plugin indent unit option has been set and set if not
		if ( ! WPEditorSetting::get_value( 'plugin_indent_unit' ) ) {
			WPEditorSetting::set_value( 'plugin_indent_unit', 2 );
		}

		// Check if the theme indent unit option has been set and set if not
		if ( ! WPEditorSetting::get_value( 'theme_indent_unit' ) ) {
			WPEditorSetting::set_value( 'theme_indent_unit', 2 );
		}

		// Check if the post indent unit option has been set and set if not
		if ( ! WPEditorSetting::get_value( 'post_indent_unit' ) ) {
			WPEditorSetting::set_value( 'post_indent_unit', 2 );
		}

	}

	public function init() {
		// Define the WP Editor version number
		define( 'WPEDITOR_VERSION_NUMBER', $this->wpe_version_number() );

		// Load all additional required classes
		$this->loadCoreModels();

		// Verify that upgrade has been run
		if (IS_ADMIN ) {
			if ( version_compare( WPEDITOR_VERSION_NUMBER, WPEditorSetting::get_value( 'version' ) ) ) {
				$this->install();
			}
		}

		// Define debugging and testing info
		$wpeditor_logging = WPEditorSetting::get_value( 'wpeditor_logging' ) ? true : false;
		define( 'WPEDITOR_DEBUG', $wpeditor_logging );

		$default_wpeditor_roles = array(
			'settings' => 'manage_options',
			'theme-editor' => 'edit_themes',
			'plugin-editor' => 'edit_plugins'
		);
		// Set default admin page roles if there isn't any
		$wpeditor_roles = WPEditorSetting::get_value( 'admin_page_roles' );
		if ( empty( $wpeditor_roles ) ) {
			WPEditorSetting::set_value( 'admin_page_roles', serialize( $default_wpeditor_roles ) );
		}
		// Ensure that all admin page roles have been set.
		else {
			$update_roles = false;
			$wpeditor_roles = unserialize( $wpeditor_roles );
			foreach ( $default_wpeditor_roles as $key => $value ) {
				if ( ! array_key_exists( $key, $wpeditor_roles ) ) {
					$wpeditor_roles[ $key ] = $value;
					$update_roles = true;
				}
			}
			if ( $update_roles ) {
				WPEditorSetting::set_value( 'admin_page_roles', serialize( $wpeditor_roles ) );
			}
			$wpeditor_roles = serialize( $wpeditor_roles );
		}

		if ( IS_ADMIN ) {
			// Load default stylesheet
			add_action( 'admin_init', array( $this, 'register_default_stylesheet' ) );
			// Load default script
			add_action( 'admin_init', array( $this, 'register_default_script' ) );
			// Register the default settings
			add_action( 'admin_init', array( 'WPEditorSetting', 'register_settings' ) );

			// Remove default editor submenus
			add_action( 'admin_menu', array( 'WPEditorAdmin', 'remove_default_editor_menus' ) );
			// Add WP Editor Settings Page
			add_action( 'admin_menu', array( 'WPEditorAdmin', 'build_admin_menu' ) );

			// Add Plugin Editor Page
			add_action( 'admin_menu', array( 'WPEditorAdmin', 'add_plugins_page' ) );
			// Add Theme Editor Page
			add_action( 'admin_menu', array( 'WPEditorAdmin', 'add_themes_page' ) );

			// Ajax request to save settings
			add_action( 'wp_ajax_save_wpeditor_settings', array( 'WPEditorAjax', 'save_settings' ) );

			// Ajax request to save files
			add_action( 'wp_ajax_save_files', array( 'WPEditorAjax', 'save_file' ) );

			// Ajax request to upload files
			add_action( 'wp_ajax_upload_files', array( 'WPEditorAjax', 'upload_file' ) );

			// Ajax request to retrieve files and folders
			add_action( 'wp_ajax_ajax_folders', array( 'WPEditorAjax', 'ajax_folders' ) );

			// Replace default plugin edit links
			add_filter( 'plugin_action_links', array( $this, 'replace_plugin_edit_links' ), 9, 1 );

			add_filter( 'the_editor', array( 'WPEditorPosts', 'add_posts_jquery' ) );

			if (!current_user_can( 'editor' ) && !current_user_can( 'administrator' ) ) {
				global $pagenow;
				if ( $pagenow == 'index.php' ) {
					add_filter( 'admin_footer', array( 'WPEditorPosts', 'add_posts_jquery' ) );
				}
			}

		}
	}

	public function loadCoreModels() {
		require_once( WPEDITOR_PATH . 'classes/WPEditorAdmin.php' );
		require_once( WPEDITOR_PATH . 'classes/WPEditorAjax.php' );
		require_once( WPEDITOR_PATH . 'classes/WPEditorBrowser.php' );
		require_once( WPEDITOR_PATH . 'classes/WPEditorException.php' );
		require_once( WPEDITOR_PATH . 'classes/WPEditorLog.php' );
		require_once( WPEDITOR_PATH . 'classes/WPEditorPlugins.php' );
		require_once( WPEDITOR_PATH . 'classes/WPEditorPosts.php' );
		require_once( WPEDITOR_PATH . 'classes/WPEditorSetting.php' );
		require_once( WPEDITOR_PATH . 'classes/WPEditorThemes.php' );
	}

	public function register_default_stylesheet() {
		wp_register_style( 'wpeditor', WPEDITOR_URL . '/wpeditor.css', false, WPEDITOR_VERSION_NUMBER );
		wp_register_style( 'nivo-lightbox', WPEDITOR_URL . '/extensions/nivo-lightbox/css/nivo-lightbox.css', false, WPEDITOR_VERSION_NUMBER );
		wp_register_style( 'nivo-lightbox-default', WPEDITOR_URL . '/extensions/nivo-lightbox/themes/default/default.css', array( 'nivo-lightbox' ), WPEDITOR_VERSION_NUMBER );
		wp_register_style( 'codemirror', WPEDITOR_URL . '/extensions/codemirror/css/codemirror.css', false, WPEDITOR_VERSION_NUMBER );
		wp_register_style( 'codemirror_dialog', WPEDITOR_URL . '/extensions/codemirror/css/dialog.css', false, WPEDITOR_VERSION_NUMBER );
		wp_register_style( 'codemirror_fullscreen', WPEDITOR_URL . '/extensions/codemirror/css/fullscreen.css', false, WPEDITOR_VERSION_NUMBER );
		wp_register_style( 'codemirror_themes', WPEDITOR_URL . '/extensions/codemirror/themes/themes.css', false, WPEDITOR_VERSION_NUMBER );
		wp_register_style( 'chosen', WPEDITOR_URL . '/extensions/chosen/css/chosen.min.css', false, WPEDITOR_VERSION_NUMBER );
	}

	public function register_default_script() {
		wp_deregister_script( 'quicktags' );
		wp_register_script( 'quicktags', WPEDITOR_URL . '/js/quicktags.js', false, WPEDITOR_VERSION_NUMBER, true );
		wp_localize_script( 'quicktags', 'quicktagsL10n', array(
			'closeAllOpenTags'      => __( 'Close all open tags', 'wp-editor' ),
			'closeTags'             => __( 'close tags', 'wp-editor' ),
			'enterURL'              => __( 'Enter the URL', 'wp-editor' ),
			'enterImageURL'         => __( 'Enter the URL of the image', 'wp-editor' ),
			'enterImageDescription' => __( 'Enter a description of the image', 'wp-editor' ),
			'textdirection'         => __( 'text direction', 'wp-editor' ),
			'toggleTextdirection'   => __( 'Toggle Editor Text Direction', 'wp-editor' ),
			'dfw'                   => __( 'Distraction-free writing mode', 'wp-editor' ),
			'strong'                => __( 'Bold', 'wp-editor' ),
			'strongClose'           => __( 'Close bold tag', 'wp-editor' ),
			'em'                    => __( 'Italic', 'wp-editor' ),
			'emClose'               => __( 'Close italic tag', 'wp-editor' ),
			'link'                  => __( 'Insert link', 'wp-editor' ),
			'blockquote'            => __( 'Blockquote', 'wp-editor' ),
			'blockquoteClose'       => __( 'Close blockquote tag', 'wp-editor' ),
			'del'                   => __( 'Deleted text (strikethrough)', 'wp-editor' ),
			'delClose'              => __( 'Close deleted text tag', 'wp-editor' ),
			'ins'                   => __( 'Inserted text', 'wp-editor' ),
			'insClose'              => __( 'Close inserted text tag', 'wp-editor' ),
			'image'                 => __( 'Insert image', 'wp-editor' ),
			'ul'                    => __( 'Bulleted list', 'wp-editor' ),
			'ulClose'               => __( 'Close bulleted list tag', 'wp-editor' ),
			'ol'                    => __( 'Numbered list', 'wp-editor' ),
			'olClose'               => __( 'Close numbered list tag', 'wp-editor' ),
			'li'                    => __( 'List item', 'wp-editor' ),
			'liClose'               => __( 'Close list item tag', 'wp-editor' ),
			'code'                  => __( 'Code', 'wp-editor' ),
			'codeClose'             => __( 'Close code tag', 'wp-editor' ),
			'more'                  => __( 'Insert Read More tag', 'wp-editor' ),
		) );
		wp_register_script( 'wpeditor', WPEDITOR_URL . 'js/wpeditor.js', false, WPEDITOR_VERSION_NUMBER );
		wp_localize_script( 'wpeditor', 'WPE', array(
            'wp_editor_ajax_nonce_ajax_folders_themes'  => wp_create_nonce( 'wp_editor_ajax_nonce_ajax_folders_themes' ),
            'wp_editor_ajax_nonce_ajax_folders_plugins' => wp_create_nonce( 'wp_editor_ajax_nonce_ajax_folders_plugins' ),
            'wp_editor_ajax_nonce_save_files_themes'    => wp_create_nonce( 'wp_editor_ajax_nonce_save_files_themes' ),
            'wp_editor_ajax_nonce_save_files_plugins'   => wp_create_nonce( 'wp_editor_ajax_nonce_save_files_plugins' )
		) );
		wp_register_script( 'wp-editor-posts-jquery', WPEDITOR_URL . 'js/posts-jquery.js', false, WPEDITOR_VERSION_NUMBER, true );
		wp_register_script( 'nivo-lightbox', WPEDITOR_URL . 'extensions/nivo-lightbox/js/nivo-lightbox.min.js', array( 'jquery' ), WPEDITOR_VERSION_NUMBER );
		wp_register_script( 'attrchange', WPEDITOR_URL . 'extensions/attrchange/attrchange.js', false, WPEDITOR_VERSION_NUMBER );

		if ( ! wp_script_is( 'codemirror', 'enqueued' ) ) {
			wp_register_script( 'codemirror', WPEDITOR_URL . 'extensions/codemirror/js/codemirror.js', false, WPEDITOR_VERSION_NUMBER );
		}
		wp_register_script( 'codemirror_php', WPEDITOR_URL . 'extensions/codemirror/js/php.js', false, WPEDITOR_VERSION_NUMBER );
		wp_register_script( 'codemirror_javascript', WPEDITOR_URL . 'extensions/codemirror/js/javascript.js', false, WPEDITOR_VERSION_NUMBER );
		wp_register_script( 'codemirror_css', WPEDITOR_URL . 'extensions/codemirror/js/css.js', false, WPEDITOR_VERSION_NUMBER );
		wp_register_script( 'codemirror_xml', WPEDITOR_URL . 'extensions/codemirror/js/xml.js', false, WPEDITOR_VERSION_NUMBER );
		wp_register_script( 'codemirror_clike', WPEDITOR_URL . 'extensions/codemirror/js/clike.js', false, WPEDITOR_VERSION_NUMBER );
		wp_register_script( 'codemirror_dialog', WPEDITOR_URL . 'extensions/codemirror/js/dialog.js', false, WPEDITOR_VERSION_NUMBER );
		wp_register_script( 'codemirror_search', WPEDITOR_URL . 'extensions/codemirror/js/search.js', false, WPEDITOR_VERSION_NUMBER );
		wp_register_script( 'codemirror_searchcursor', WPEDITOR_URL . 'extensions/codemirror/js/searchcursor.js', false, WPEDITOR_VERSION_NUMBER );
		wp_register_script( 'codemirror_mustache', WPEDITOR_URL . 'extensions/codemirror/js/mustache.js', false, WPEDITOR_VERSION_NUMBER );
		wp_register_script( 'codemirror_fullscreen', WPEDITOR_URL . 'extensions/codemirror/js/fullscreen.js', false, WPEDITOR_VERSION_NUMBER );
		//wp_register_script( 'codemirror_foldcode', WPEDITOR_URL . 'extensions/codemirror/js/foldcode.js' );

		wp_register_script( 'chosen', WPEDITOR_URL . 'extensions/chosen/js/chosen.jquery.min.js', array( 'jquery' ), WPEDITOR_VERSION_NUMBER );
	}

	public static function get_view( $filename, $data=null ) {
		$filename = WPEDITOR_PATH . "/$filename";
		ob_start();
		include $filename;
		$contents = ob_get_contents();
		ob_end_clean();
		return $contents;
	}

	public static function get_table_name( $name ) {
		return WPEditor::get_table_prefix() . $name;
	}

	public static function get_table_prefix() {
		global $wpdb;
		return $wpdb->prefix . 'wpeditor_';
	}

	public static function replace_plugin_edit_links( $links ) {
		// phpcs:ignore HM.Security.NonceVerification.Recommended
		if ( isset( $_REQUEST['plugin_status'] ) && in_array( $_REQUEST['plugin_status'], array( 'mustuse', 'dropins' ) ) ) {
			return $links;
		}

		if ( WPEditorSetting::get_value( 'replace_plugin_edit_links' ) == 1 ) {
			if ( isset( $links['edit'] ) ) {
				$links['edit'] = str_replace( 'plugin-editor.php?', 'plugins.php?page=wpeditor_plugin&', $links['edit'] );
			}

			return $links;
		}

		return $links;
	}

	public function wpe_version_number() {
		if ( ! function_exists( 'get_plugin_data' ) ) {
			require_once( ABSPATH . 'wp-admin/includes/plugin.php' );
		}
		$plugin_data = get_plugin_data( WPEDITOR_PATH . '/wpeditor.php' );
		return $plugin_data['Version'];
	}
}