//class-dportfolio.php

<?php

if ( ! defined( 'ABSPATH' ) ) exit;

class DPortfolio {

    private static $_instance = null;

    public $settings = null;
    public $_version;
    public $_token;
    public $file;
    public $dir;
    public $assets_dir;
    public $assets_url;

    public function __construct ( $file = '', $version = '1.0' ) {

        $this->_version = $version;
        $this->_token = 'dportfolio';

        $this->file = $file;
        $this->dir = dirname( $this->file );
        $this->assets_dir = trailingslashit( $this->dir ) . 'assets';
        $this->assets_url = get_template_directory_uri() . '/library/dportfolio/assets/';

        register_activation_hook( $this->file, array( $this, 'install' ) );

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

        $this->load_plugin_textdomain();
        add_action( 'init', array( $this, 'load_localisation' ), 0 );

    }

    public function enqueue_styles () {
        wp_register_style( $this->_token . '-frontend', esc_url( $this->assets_url ) . 'css/frontend.css', array(), $this->_version );
        wp_enqueue_style( $this->_token . '-frontend' );
    }

    public function enqueue_scripts () {

        wp_register_script( $this->_token . '-imagesloaded', esc_url( $this->assets_url ) . 'js/imagesloaded.pkgd.min.js', array( 'jquery' ), $this->_version, true );
        wp_enqueue_script( $this->_token . '-imagesloaded' );

        wp_enqueue_script('masonry');

        wp_register_script( $this->_token . '-multipleFilterMasonry', esc_url( $this->assets_url ) . 'js/multipleFilterMasonry.js', array( 'jquery' ), $this->_version, true );
        wp_enqueue_script( $this->_token . '-multipleFilterMasonry' );

        wp_register_script( $this->_token . '-frontend', esc_url( $this->assets_url ) . 'js/frontend.js', array( 'jquery' ), $this->_version, true );
        wp_enqueue_script( $this->_token . '-frontend' );

    }

    public function load_localisation () {
        load_plugin_textdomain( 'dportfolio', false, dirname( plugin_basename( $this->file ) ) . '/languages/' );
    }

    public function load_plugin_textdomain () {

        $domain = 'dportfolio';
        $locale = apply_filters( 'plugin_locale', get_locale(), $domain );

        load_textdomain( $domain, WP_LANG_DIR . '/' . $domain . '/' . $domain . '-' . $locale . '.mo' );
        load_plugin_textdomain( $domain, false, dirname( plugin_basename( $this->file ) ) . '/languages/' );

    }

    public function dportfolio_get_category() {

    global $post;

    $terms = get_the_terms( $post->ID, 'dportfolio_categories' );
    $content = '';

    foreach ($terms as $term) {

        $content .= '<a href="'. $term->slug .'">'. $term->name .'</a>';

    }

    return $content;

}

    public static function instance ( $file = '', $version = '1.0.0' ) {

        if ( is_null( self::$_instance ) ) {

            self::$_instance = new self( $file, $version );

        }

        return self::$_instance;

    }

    public function __clone () {
        _doing_it_wrong( __FUNCTION__, __( 'Cheatin&#8217; huh?' ), $this->_version );
    }

    public function __wakeup () {
        _doing_it_wrong( __FUNCTION__, __( 'Cheatin&#8217; huh?' ), $this->_version );
    }

    public function install () {

        $this->_log_version_number();

        flush_rewrite_rules();

    }

    private function _log_version_number () {

        update_option( $this->_token . '_version', $this->_version );

    }

}