/src/functions.php

<?php

// Send a notice to the user that Timber is not installed
if ( ! class_exists( 'Timber' ) ) {
	add_action( 'admin_notices', function() {
			echo '<div class="error"><p>Timber not activated. Make sure you activate the plugin in <a href="' . esc_url( admin_url( 'plugins.php#timber' ) ) . '">' . esc_url( admin_url( 'plugins.php' ) ) . '</a></p></div>';
		} );
	return;
}

Timber::$dirname = array('templates', 'views');

class BadMishkaTheme extends TimberSite {
    public $theme_slug = "bad-mishka";
    public $sidebarFormat = array(
        'before_widget' => '<section id="%1$s" class="widget %2$s">',
        'after_widget'  => '</section>',
        'before_title'  => '<h2>',
        'after_title'   => '</h2>',
    );

    function __construct() {
      
       

        // theme support
        add_theme_support( 'post-formats' );
        add_theme_support( 'post-thumbnails' );
        add_theme_support( 'menus' );
        add_theme_support( 'automatic-feed-links' );
        add_theme_support( 'title-tag' );
      
        // filter 
        add_filter( 'timber_context', array( $this, 'add_to_context' ) );
        add_filter( 'get_twig', array( $this, 'add_to_twig' ) );
        
        // actions 
        add_action( 'init', array( $this, 'register_post_types' ) );
        add_action( 'init', array( $this, 'register_taxonomies' ) );
        add_action('init', array( $this, 'update_jquery'));

        
        $can_i_haz_more_posts = 'can_i_haz_more_posts';
        
        add_action( "wp_ajax_$can_i_haz_more_posts", array($this, $can_i_haz_more_posts ));
        add_action( "wp_ajax_nopriv_$can_i_haz_more_posts", array($this, $can_i_haz_more_posts ));
		    
        add_action( 'widgets_init', array( $this, 'inititalize_post_right_sidebar' ));
        add_action( 'widgets_init', array( $this, 'inititalize_page_right_sidebar' ));
        add_action( 'widgets_init', array( $this, 'inititalize_primary_right_sidebar' ));

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

        

        parent::__construct();
	}

    function load_metadata() {
      
        wp_enqueue_script('theme', get_stylesheet_directory_uri() . '/js/theme.js', array( 'jquery' ), '0.1.0', true );
        $args = array();

        if(!is_single("posts")) {
            $query = array( 
                
                'posts_per_page' => 10 
            );
            
            $args[ 'nonce' ] = wp_create_nonce( 'load-more-nonce' );
            $args[ 'url' ] =  admin_url( 'admin-ajax.php' );
            $args['query'] = $query;    
        }

       
        wp_localize_script( 'theme', '$mkSettings', $args );   
    }

    private function get_first_term( $taxonomy, $field ) {
        $terms = get_the_terms( get_the_ID(), $taxonomy );
    
        if( empty( $terms ) || is_wp_error( $terms ) )
            return false;
        
        // If there's only one term, use that
        if( 1 == count( $terms ) ) {
            $term = array_shift( $terms );
        } else {
            $term = array_shift( $list );
        }
        
        // Output 	
        if( $field && isset( $term->$field ) )
            return $term->$field;
        
        else
            return $term;	
    }

    function render_ajax_posts($args) {
     
         $context = Timber::get_context();
        $context['posts'] = Timber::get_posts($args);
        $context['right_sidebar'] = $right_sidebar;
        $context['column_size'] = $columns;

        $templates = array( 'articles-ajax.twig' );
        Timber::render( $templates, $context );
    }

    function can_i_haz_more_posts(){
 
        try {
            //check_ajax_referer( 'be-load-more-nonce', 'nonce' );
        
            $args = isset( $_POST['query'] ) ? array_map( 'esc_attr', $_POST['query'] ) : array();
            $args['post_type'] = isset( $args['post_type'] ) ? esc_attr( $args['post_type'] ) : 'post';
            $args['paged'] = esc_attr( $_POST['page'] );
            $args['post_status'] = 'publish';
            ob_start();
           
            $this->render_ajax_posts($args);
             wp_reset_postdata();
            $data = ob_get_clean();
            echo $data;
        } catch(Exception $e) {
            echo "something went wrong";
        }
       
        die;
    }

    function update_jquery() {
        if (!is_admin()) {

            wp_deregister_script('jquery');

            wp_register_script('jquery', 'https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js', false, '3.1.0');

            wp_enqueue_script('jquery');
        }
    }
    

    function inititalize_primary_right_sidebar() {
        $theme_slug = $this->theme_slug;
        $rightSidebar = array(
            'name' => __( 'Primary Right Sidebar', $theme_slug ),
            'id' => 'primary-right-sidebar',
            'description' => __( 'Widgets in this area will be shown on the front page.', $theme_slug ),
        );

        register_sidebar( array_merge($rightSidebar, $this->sidebarFormat) );
    }



    function inititalize_page_right_sidebar() {
        $theme_slug = $this->theme_slug;
        $rightSidebar = array(
            'name' => __( 'Page Right Sidebar', $theme_slug ),
            'id' => 'page-right-sidebar',
            'description' => __( 'Widgets in this area will be shown on all pages.', $theme_slug ),
        );
        
        register_sidebar( array_merge($rightSidebar, $this->sidebarFormat) );
    }

    function inititalize_post_right_sidebar() {
        $theme_slug = $this->theme_slug;
        $rightSidebar = array(
            'name' => __( 'Post Right Sidebar', $theme_slug ),
            'id' => 'post-right-sidebar',
            'description' => __( 'Widgets in this area will be shown on all posts.', $theme_slug ),
        );
        register_sidebar( array_merge($rightSidebar, $this->sidebarFormat) );
    }

	  function register_post_types() {
		    //this is where you can register custom post types
	  }
	
  
    function register_taxonomies() {
		    //this is where you can register custom taxonomies
	  }
    function add_to_context( $context ) {
        $context['menu'] = new TimberMenu();
        $context['site'] = $this;
        return $context;
    }

	  function add_to_twig( $twig ) {
		    // this is where you can add your own fuctions to twig */
	
		    return $twig;
	  }
}

$timberTheme = new BadMishkaTheme();