<?php
if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly

class Tatsu_Frame {

	/**
	 * The ID of this plugin.
	 *
	 * @since    1.0.0
	 * @access   private
	 * @var      string    $plugin_name    The ID of this plugin.
	 */
	private $plugin_name;

	/**
	 * The version of this plugin.
	 *
	 * @since    1.0.0
	 * @access   private
	 * @var      string    $version    The current version of this plugin.
	 */
	private $version;

	public function __construct( $plugin_name, $version ) {

		$this->plugin_name = $plugin_name;
		$this->version = $version;

	}

	public function init() {
		if ( is_admin() || ! $this->loaded_from_iframe() ) {
			return;
		}

		// Disable the WP admin bar in preview mode.
		add_filter( 'show_admin_bar', '__return_false' );
		remove_action('wp_head', '_admin_bar_bump_cb');

		add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_scripts' ) );

		add_filter( 'body_class', array( $this, 'body_class' ) );
		add_filter( 'the_content', array( $this, 'builder_wrapper' ) );
		add_action( 'wp_footer', array( $this, 'frame_footer' ), 999999 );

		// Set the headers to prevent caching for the different browsers
		nocache_headers();

		// Tell to WP Cache plugins do not cache this request.
		if ( ! defined( 'DONOTCACHEPAGE' ) ) {
			define( 'DONOTCACHEPAGE', true );
		}
	}	

	private function loaded_from_iframe() {
		if ( isset( $_GET['post_id'] ) && !tatsu_is_post_editable_by_current_user( $_GET['post_id'] ) ) {
			return false;
		}

		if ( isset( $_GET['tatsu-frame'] ) ) {
			return true;
		}

		return false;
	}

	/**
	 * Add custom class in `<body>` element.
	 *
	 * @since 1.0.0
	 * @param array $classes
	 *
	 * @return array
	 */
	public function body_class( $classes = array() ) {

		$tatsu_theme = get_option('tatsu_ui_theme','dark');

		$classes[] = 'tatsu-frame';
		$classes[] = 'tatsu-theme-' . $tatsu_theme;
		return $classes;
	}

	/**
	 * Do not show the conent from the page. Just print empty start HTML.
	 * The Javascript will add the content later.
	 *
	 * @since 1.0.0
	 * @param string $content
	 *
	 * @return string
	 */


	public function builder_wrapper( $content ) {
		return '<div id="tatsu-content-wrap"></div>';
	}

	public function frame_footer() {
		echo '<div id = "tatsu-observer">
				<div id = "tatsu-observer-tooltip">
				</div>
			  </div>
			  <div id = "tatsu-absolute-wrapper">
			  </div>
			  <div class="tatsu-focus-edit">
			  </div>
			  <div id="tatsu-tinymce-helper">
			  </div>
			  <input type = "text" id = "tatsu-copy-paste-helper"/>
			  <div class = "tatsu-add-tools-helper">
				<div class = "tatsu-add-tools-icon-wrapper">
					<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" x="0px" y="0px" viewBox="0 0 100 100" style="enable-background:new 0 0 100 100;" xml:space="preserve">
						<g>
						<polygon points="95.6,57.7 95.6,44.3 56.8,44.2 56.7,5.4 43.3,5.4 43.2,44.2 4.4,44.3 4.4,57.7 43.2,57.8 43.3,96.6 56.7,96.6    56.8,57.8  ">
						</polygon>
						</g>
					</svg>
				</div>
				<div class = "tatsu-add-tools-icon-wrapper">
					<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" x="0px" y="0px" viewBox="0 0 100 100" style="enable-background:new 0 0 100 100;" xml:space="preserve">
						<g>
						<polygon points="95.6,57.7 95.6,44.3 56.8,44.2 56.7,5.4 43.3,5.4 43.2,44.2 4.4,44.3 4.4,57.7 43.2,57.8 43.3,96.6 56.7,96.6    56.8,57.8  ">
						</polygon>
						</g>
					</svg>
				</div>
		  	  </div>
			  </div>
			  <div id = "tatsu-modulelist-drawer-overlay">
			  	<div id = "tatsu-modulelist-drawer-overlay-inner-text">
				  <span id = "tatsu-modulelist-drawer-maintext">
				  	Click on a module to add it
				  </span>
				  <span id = "tatsu-modulelist-drawer-subtext">
				  	or click anywhere here to close
				  </span>
				</div>
			  </div>';
	}	

	/**
	 * Enqueue preview scripts and styles.
	 *
	 * @since 1.0.0
	 * @return void
	 */
	public function enqueue_scripts() {

		$tatsu_theme = get_option('tatsu_ui_theme','dark');

		wp_enqueue_script( 'tiny-mce-js', includes_url( 'js/tinymce/tinymce.min.js' ) );
		wp_enqueue_style( 'tatsu-frame-css', plugins_url( 'builder/css/tatsu-frame.css', dirname(__FILE__) ) );
		wp_enqueue_style( 'tatsu-context-menu-css', plugins_url( $tatsu_theme === 'dark' ? 'builder/css/dark-context-menu.css' : 'builder/css/light-context-menu.css', dirname(__FILE__) ) );
		wp_enqueue_script( 'tatsu-frame-js', plugins_url( 'builder/js/tatsu-frame.js', dirname(__FILE__) ), array(), $this->version , true );
		wp_enqueue_style( 'tatsu-roboto-font', '//fonts.googleapis.com/css?family=Roboto:400,700', array(), null );
		do_action('tatsu_frame_enqueue');
	
	}	
}