zoneboard.php

<?php
	/*
	Plugin Name: Zoneboard
	Plugin URI: http://upstatement.com/zoneboard
	Description: Cleans up the WordPress Dashboard
	Version: 0.5
	Author: Upstatement
	*/

	require_once('zoneboard-block.php');

	class Zoneboard {

		var $_bricks;
		var $vars;

		function __construct($json_file){
			//self::clear();
			add_action('admin_menu', array( $this,'register_menu') );
    		add_action('load-index.php', array( $this,'redirect_dashboard') );
    		add_filter('get_twig', array($this, 'add_twig_extensions'));
    		if (isset($_GET['action']) && $_GET['action'] == 'copy_zoneboard_file') {
    			$this->copy_zoneboard_starter();
    		}
    		$this->vars = array();
    		$this->load_json($json_file);
		}

		function copy_zoneboard_starter() {
			$src = plugin_dir_path(__FILE__).'zoneboard.json';
			$destination = get_stylesheet_directory().'/zoneboard.json';
			$copy = copy($src, $destination);
		}

		function add_twig_extensions($twig){
			$twig->addExtension(new Twig_Extension_StringLoader());
			return $twig;
		}

		function load_json($json_file){
			if (file_exists($json_file)){
				$json = file_get_contents($json_file);
				$json = json_decode($json);
				foreach($json->bricks as &$brick){
					$brick = new ZoneboardBlock($brick);
				}
				$this->json_data = $json;
				$this->_bricks = $json->bricks;
			} else if (is_admin()) {
				if ( !$this->check_sysreqs() ) {
					return;
				}
				$url = Timber\URLHelper::get_current_url();
				$parts = parse_url($url);
				if ((isset($parts['query']) && $parts['query'] == 'page=zoneboard')
						|| (isset($parts['path']) && strpos($parts['path'], 'wp-admin/plugins.php'))
					) {
					$this->show_message_for_missing_json_file( $json_file );
				}
			}
		}

		function redirect_dashboard(){
			if( is_admin() ) {
				$screen = get_current_screen();
				if($screen->base == 'dashboard') {
					wp_redirect( admin_url( 'index.php?page=zoneboard' ) );
				}
			}
		}

		function register_menu(){
			 add_dashboard_page( 'Zoneboard', 'Zoneboard', 'read', 'zoneboard', array( $this,'create_dashboard') );
		}

		function show_message_for_missing_json_file( $json_file ) {
			$class = 'error';
			$text = 'No zoneboard.json file was found. Create one at <strong>'.$json_file. '</strong> for your Zoneboard to appear here. You can also <a href="'.admin_url().'?action=copy_zoneboard_file">Copy the default starter Zoneboard into your theme</a>';
			add_action( 'admin_notices', function() use ( $text, $class ) {
					echo '<div class="'.$class.'"><p>'.$text.'</p></div>';
				}, 1 );
		}

		function check_sysreqs() {
			if (!class_exists( 'Timber')) {
				$class = 'error';
				$text = 'Zoneboard requires Timber. Make sure you activate Timber in <a href="' . esc_url( admin_url( 'plugins.php#timber' ) ) . '">' . esc_url( admin_url( 'plugins.php' ) ) . '</a>';
				add_action( 'admin_notices', function() use ( $text, $class ) {
					echo '<div class="'.$class.'"><p>'.$text.'</p></div>';
				} );
				return false;
			}
			return true;
		}

		function create_dashboard(){
			if ( !$this->check_sysreqs() ) {
				return;
			}
			$data = array();
			$data['site'] = new TimberSite();
			$data['bricks'] = $this->_bricks;
			if ( isset($this->json_data->message )) {
				$data['message'] = $this->json_data->message;
			}
			$data['logo_url'] = "https://raw.githubusercontent.com/jonsherrard/zoneboard/master/logo.png";
			if ( isset($this->json_data->logo_url )) {
				$data['logo_url'] = $this->json_data->logo_url;
			}
			$data['stylesheet'] = plugins_url('css/zoneboard.css', __FILE__);
			foreach($this->vars as $key=>$var){
				$data[$key] = $var;
			}
			Timber::render('views/dashboard.twig', $data);
		}

		public function add_var($var_name, $callback){
			if (is_callable($callback)){
				$callback = $callback();
			}
			$this->vars[$var_name] = $callback;
		}

		public function add_brick($block){
			if (!$this->_bricks){
				$this->_bricks = array();
			}
			if (is_array($block)){
				foreach($block as $b){
					$this->_bricks[] = $b;
				}
			} else {
				$this->_bricks[] = $block;
			}
		}

	}

	// add_action('admin_init', function(){
		$zoneboard = new Zoneboard( get_stylesheet_directory().'/zoneboard.json' );
	// });
	//
	function zoneboard_hello_world() {
		echo "Zoneboard Hello World!";
	}