<?php

/**
 * SpyroPress - A WordPress theme development framework.
 *
 * Text Domain: spyropress
 * Domain Path: /languages/
 *
 * @author      Shakeeb Ahmed <shak@Spyropress.com>
 * @category    Core
 * @copyright   Copyright (c) 2012-2013, SpyroPress
 * @link        http://spyropress.com/
 * @package     SpyroPress
 *
 */

if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly

/**
 * Spyropress Class - Loads and Initialize the framework.
 *
 * @class Spyropress
 * @version 3.7
 */
class Spyropress {

    /** Variables *****************************************************/
    var $options = array();
    var $context;
    var $lang = '';

    /** KEYS **********************************************************/
    var $api_key = 'y64i1460n7tz2q2ss9a08yftilyfqfynxohb';
    var $themekey = 'fj9nzqmyzqne9ouib0e0ivt9qgarra3nm';
    var $google_api_key = 'AIzaSyBt703vghKlYnKCHzoumkumtLkZ9luJ53U';

    /** Body Classes **************************************************/
    private $_body_classes = array();

    /** Inline ********************************************************/
    private $_jquery_ready = '';
    private $_window_load = '';
    private $_inline_js = '';
    private $_footer_html = '';

    /** Spyropress Constructor, Gets things started **/
    public function __construct() {

        // Auto-load classes on demand
        spl_autoload_register( array( $this, 'autoload' ) );

        // Setup globals
        add_action( 'after_setup_theme', array( $this, 'setup_globals' ), 1 );

        // Include required files
        add_action( 'after_setup_theme', array( $this, 'includes' ), 2 );

        // Language functions and translations setup.
        add_action( 'after_setup_theme', array( $this, 'load_textdomain' ), 3 );

        // Load settings
        add_action( 'after_setup_theme', array( $this, 'setup_options' ), 11 );
        
        // Init Components
        add_action( 'after_setup_theme', array( $this, 'spyropress_init_components' ), 11 );

        // Init Custom Post Types and Taxonomies
        add_action( 'after_setup_theme', array( $this, 'init_taxonomy' ), 11 );

        // Init
        add_action( 'init', array( $this, 'init' ), 0 );
        add_action( 'init', array( $this, 'include_template_functions' ), 25 );
    }

    /**
     * Auto-load classes on demand to reduce memory consumption.
     */
    function autoload( $class ) {

        $class = strtolower( preg_replace( '/\B([A-Z])/', '-$1', $class ) );

        if ( ( strncmp( $class, 'spyropress', strlen( 'spyropress' ) ) == 0 ) ) {
            $class = str_replace( 'spyropress-', '', $class );
            $class = "class-$class.php";
            $class = $this->framework_path . 'classes/' . $class;

            if ( is_readable( $class ) ) {
                include ( $class );
                return;
            }
        }
    }

    /** Defines the constant paths for use within the core framework, parent theme, and child theme. **/
    function setup_globals() {

        // Version
        $this->version = '3.7.0';

        // Paths
        $tmpDir = get_template_directory();
        $tmpURI = get_template_directory_uri();

        // Framework
        $this->framework_path = $tmpDir . '/framework/';
        $this->framework_url = $tmpURI . '/framework/';
        
        // Includes
        $this->includes_path = $tmpDir . '/includes/';
        $this->includes_url = $tmpURI . '/includes/';

        // Theme
        $this->template_path = $tmpDir . '/';
        $this->template_url = $tmpURI . '/';

        // Child Theme
        $this->child_path = get_stylesheet_directory() . '/';
        $this->child_url = get_stylesheet_directory_uri() . '/';

        // Misc
        $this->domain = 'spyropress';
    }

    /**
     * Setup Registered Option Types
     */
    function setup_options() {

        // Get theme-supported options
        $options = get_theme_support( 'spyropress-options' );

        // If there is no options, return
        if ( empty( $options ) ) return;
        
        if( defined( 'ICL_LANGUAGE_CODE' ) ) {
        	global $sitepress;
        	if( 'en' != ICL_LANGUAGE_CODE && 'all' != ICL_LANGUAGE_CODE ) {
        		$this->lang = '_'.ICL_LANGUAGE_CODE;
        		foreach( $options[0] as $option => $option_meta ) {
                    $key = "spyropress_{$option}_settings";
                    if( !get_option( $key . $this->lang ) ) {
                        update_option( $key . $this->lang, get_option( $key ) );
                    }
                }
                
                
        	} elseif( 'all' == ICL_LANGUAGE_CODE ) {
        		$this->lang = '_' . $sitepress->get_default_language();
        		if( $sitepress->get_default_language() == 'en' ) {
        			$this->lang = '';
        		}
        	} else {
        		$this->lang = '';
        	}
        }

        // get options settings from database
        foreach( $options[0] as $option => $option_meta ) {
            $key = "spyropress_{$option}_settings{$this->lang}";
            $this->options[$key] = get_option( $key );
        }
    }

    /** Loads the framework files **/
    function includes() {

        do_action( 'before_spyropress_core_includes' );
        
        /** Core **************************************************************/

        // Functions
        require_once ( 'spyropress-core-functions.php' ); // Contains core functions for the front/back end
        require_once ( 'spyropress-context.php' ); // Contains core functions for the front/back end
        require_once ( 'spyropress-template-hierarchy.php' ); // Extending template hierarchy making it smarter and more flexible. Inspired by hybrid core.

        if ( is_admin() ) $this->admin_includes();
        if ( defined( 'DOING_AJAX' ) ) $this->ajax_includes();
        if ( ! is_admin() || defined( 'DOING_AJAX' ) ) $this->frontend_includes();


        /** WP Components *****************************************************/
        require_once ( 'widgets/spyropress-widget-init.php' );

        /** Components ********************************************************/

        // SpyroBuilder
        $builder_file = $this->framework_path . 'builder/spyropress-builder-init.php';
        
        // envato verification && site_key
        $is_site_key = false;
        $code = get_option( '_spyropress_envato_verification_' . get_internal_name() );
        $cur_site_key = md5( home_url() . $code );
        if( $site_key = get_option( '_spyropress_site_key_' . get_internal_name() ) ) {
            
            if( $site_key ==  $cur_site_key )
                $is_site_key = true;
        }
        
        $this->is_builder_verified = ( bool )$code && $is_site_key;
        
        require_once $builder_file;

        // Allow developers to include files before framework initialize
        do_action( 'spyropress_core_includes' );
    }

    /** Load the admin functions **/
    function admin_includes() {
        require_once ( 'admin/spyropress-admin-init.php' );
        $this->admin = new SpyropressAdmin();
    }

    /** Init Components **/
    function spyropress_init_components() {

        // Get theme-supported menus.
        $components = get_theme_support( 'spyropress-components' );

        // If there is no components, return.
        if ( ! is_array( $components[0] ) ) return;

        $path = 'includes/components/';
        
        // Register Components
        foreach ( $components[0] as $component ) {
            $temps = array(
                $path . $component . '.php',
            );
            locate_template( $temps, true );
        }
    }
    
    /** Load the ajax files used on front-end and back-end **/
    function ajax_includes() {
        require_once ( 'spyropress-ajax.php' );
    }

    /** Load the front-end function **/
    function frontend_includes() {

        require_once ( 'spyropress-actions.php' ); // Framework hooks used on the front-end
        require_once ( 'spyropress-hooks.php' ); // WordPress Hooks and Filters
        require_once ( 'spyropress-functions.php' ); // Contains functions for various front-end events
        require_once ( $this->template_path . 'includes/spyropress-scripts.php' ); // Enqueue scripts and stylesheets
        require_once ( 'spyropress-image.php' ); // Image retrives and resize functions for the front-end
    }

    /** SpyroPress Template Functions - This makes them pluggable by plugins and themes **/
    function include_template_functions() {
        require_once ( 'spyropress-template.php' );
    }

    /** Init SpyroPress when WordPress Initialises **/
    function init() {

        // Before init action
        do_action( 'before_spyropress_init' );

        // Load class instances
        $this->api = new SpyropressApi();
        $this->cleaner = new SpyropressCleanup();
        $this->widgets = new SpyropressWidgets();

        $this->register_menus(); // Register core nav menu location
        $this->register_sidebars(); // Register core sidebars

        // actions loaded for the frontend and for ajax requests
        if ( ! is_admin() || defined( 'DOING_AJAX' ) ) {

            // Hooks
            add_filter( 'body_class', array( $this, 'body_class' ) );
            add_action( 'wp_footer', array( $this, 'output_footer_html' ), 25 );
            add_action( 'wp_footer', array( $this, 'output_js' ), 25 );
        }

        // Admin actions
        add_action( 'admin_body_class', array( $this, 'body_class' ) );
        add_action( 'admin_footer', array( $this, 'output_js' ), 25 );

        // Init action
        do_action( 'spyropress_init' );
    }

    /** Localisation **/
    function load_textdomain() {
        
        load_theme_textdomain( $this->domain, $this->template_path . 'languages' );
    }

    /** Init Custom Post Types and Taxonomies **/
    function init_taxonomy() {
        do_action( 'spyropress_register_taxonomy' );
    }

    /** Register Theme Locations **/
    function register_menus() {

        // Get theme-supported menus.
        $menus = get_theme_support( 'spyropress-core-menus' );

        // If there is no menus, return.
        if ( ! is_array( $menus[0] ) ) return;

        // Register menu
        foreach ( $menus[0] as $menu => $v )
            register_nav_menu( $menu, _x( ucfirst( $menu ), 'nav menu location', 'spyropress' ) );
    }

    /** Register Sidebars **/
    function register_sidebars() {

        // Get the available core sidebars.
        $core_sidebars = $this->get_core_sidebars();

        // Get the theme-supported sidebars.
        $supported_sidebars = get_theme_support( 'spyropress-core-sidebars' );
        $supported_sidebars = ( ! is_array( $supported_sidebars[0] ) ) ? array() : $supported_sidebars[0];

        // Merged
        $sidebars = array_merge( $supported_sidebars, $core_sidebars );

        // Register supported sidebars
        foreach ( $sidebars as $id => $sidebar ) {

            // Set up some default sidebar arguments.
            $defaults = array(
                'before_widget' => '<section id="%1$s" class="widget %2$s">',
                'after_widget' => '</section>',
                'before_title' => '<h3 class="widget-title">',
                'after_title' => '</h3>'
            );

            // Allow developers to filter the default sidebar arguments.
            $defaults = apply_filters( 'spyropress_sidebar_defaults', $defaults, $id, $sidebar );

            // Parse the sidebar arguments and defaults.
            $args = wp_parse_args( $sidebar, $defaults );

            // If no 'id' was given, use the $sidebar variable and sanitize it.
            $args['id'] = ( isset( $args['id'] ) ? sanitize_key( $args['id'] ) : sanitize_key( $id ) );

            // Register the sidebar.
            register_sidebar( $args );
        }
    }

    /** Returns an array of the core framework's available sidebars for use in themes. **/
    function get_core_sidebars() {

        // Set up an array of sidebars.
        $sidebars = array();

        // Setup footer sidebars according to selection
        $footer_layout = get_setting( 'footer_layout', false );
        if ( $footer_layout ) {
            $footer_layouts = array(
                '0col' => 0,
                '1col' => 1,
                '2col' => 2,
                '3col' => 3,
                '4col' => 4,
                '6col' => 6,
                'h2col' => 3,
                '2hcol' => 3,
                'h3col' => 4,
                '3hcol' => 4,
                't4col' => 5,
                '4tcol' => 5
            );
            $footer_count = $footer_layouts[$footer_layout];

            for ( $i = 0; $i < $footer_count; $i++ )
                $sidebars['footer-' . ( $i + 1 )] = array(
                    'name' => __( 'Footer ', 'spyropress' ) . ( $i + 1 ),
                    'description' => __( 'A widget area loaded in the footer of the site.', 'spyropress' )
                );
        }

        return $sidebars;
    }

    /** Body Classes **********************************************************/

    function add_body_class( $class ) {
        $this->_body_classes[] = $class;
    }

    function browser_body_class() {

        global $is_lynx, $is_gecko, $is_IE, $is_opera, $is_NS4, $is_safari, $is_chrome, $is_iphone;

        if ( $is_lynx ) $this->add_body_class( 'lynx' );
        elseif ( $is_gecko ) $this->add_body_class( 'gecko' );
        elseif ( $is_opera ) $this->add_body_class( 'opera' );
        elseif ( $is_NS4 ) $this->add_body_class( 'ns4' );
        elseif ( $is_safari ) $this->add_body_class( 'safari' );
        elseif ( $is_chrome ) $this->add_body_class( 'chrome' );
        elseif ( $is_IE ) {

            $this->add_body_class( 'ie' );

            // Version Info
            $browser = $_SERVER['HTTP_USER_AGENT'];
            $browser = substr( "$browser", 25, 8 );

            if ( $browser == "MSIE 6.0" ) $this->add_body_class( 'ie6' );
            elseif ( $browser == "MSIE 7.0" ) $this->add_body_class( 'ie7' );
            elseif ( $browser == "MSIE 8.0" ) $this->add_body_class( 'ie8' );
            elseif ( $browser == "MSIE 9.0" ) $this->add_body_class( 'ie9' );
        }
        else
            $this->add_body_class( 'unknown' );

        if ( $is_iphone )
            $this->add_body_class( 'iphone' );
    }

    function body_class( $classes ) {

        // add browsers class
        $this->browser_body_class();

        if ( sizeof( $this->_body_classes ) > 0 ) {
            if ( is_admin() )
                $classes .= implode( ' ', $this->_body_classes );
            else
                $classes = array_merge( $classes, $this->_body_classes );
        }

        return $classes;
    }

    /** Inline Helper **********************************************/

    function add_jquery_ready( $code ) {
        $this->_jquery_ready .= "\n" . $code . "\n";
    }

    function add_window_load( $code ) {
        $this->_window_load .= "\n" . $code . "\n";
    }

    function add_inline_js( $code ) {
        $this->_inline_js .= "\n" . $code . "\n";
    }

    function add_footer_html( $code ) {
        $this->_footer_html .= "\n" . $code . "\n";
    }

    function output_js() {

        if( $this->_jquery_ready ) "\n" . '$(document).ready( function() {' . "\n" . $this->_jquery_ready . '});' . "\n";
        if( $this->_window_load ) "\n" . '$(window).load( function() {' . "\n" . $this->_window_load . '});' . "\n";

        if( $this->_jquery_ready || $this->_window_load || $this->_inline_js ) {

            echo "<!-- SpyroPress JavaScript-->\n";
            echo "<script type=\"text/javascript\">\n";

            if( $this->_jquery_ready || $this->_window_load ) {
                echo ';(function($) {' . $this->_jquery_ready . $this->_window_load . '})(jQuery);' . "\n";
            }

            echo "\n" . $this->_inline_js . "\n";
            echo "\n</script>\n";
        }

        $this->_jquery_ready = '';
        $this->_window_load = '';
        $this->_inline_js = '';
    }

    function output_footer_html() {
        if ( $this->_footer_html ) {
            echo $this->_footer_html;
            $this->_footer_html = '';
        }
    }
}

/**
 * Init Spyropress class
 */
$GLOBALS['spyropress'] = new Spyropress();
?>