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.....................................................................................................................................<?php
/**
 * Single functions and definitions.
 *
 * @package Glozin
 */

namespace Glozin\Blog;
use Glozin\Helper;

if ( ! defined( 'ABSPATH' ) ) {
	exit; // Exit if accessed directly.
}

/**
 * Single initial
 */
class Single {
	/**
	 * Instance
	 *
	 * @var $instance
	 */
	protected static $instance = null;

	/**
	 * Initiator
	 *
	 * @since 1.0.0
	 * @return object
	 */
	public static function instance() {
		if ( is_null( self::$instance ) ) {
			self::$instance = new self();
		}

		return self::$instance;
	}

	/**
	 * Instantiate the object.
	 *
	 * @since 1.0.0
	 *
	 * @return void
	 */
	public function __construct() {
		add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_scripts' ) );
		add_filter( 'glozin_inline_style', array( $this, 'inline_style' ) );

		add_filter('glozin_site_content_container_class', array( $this, 'site_content_container_class' ));

		// Post Format Image
		add_action( 'glozin_after_site_content_open', array( $this, 'post_format_image' ), 20 );

		// Post Navigation
		if (Helper::get_option('post_navigation') ) {
			add_action( 'glozin_after_post_content', array( $this, 'navigation' ), 40 );
		}

		// Related Posts
		if (Helper::get_option('posts_related') ) {
			add_action( 'glozin_after_post_content', array( $this, 'related_posts' ), 60 );
		}

		// Content Layout
		add_action( 'glozin_site_layout', array( $this, 'content_layout' ));

		// Sidebar
		add_filter('glozin_get_sidebar', array( $this, 'sidebar' ), 10 );

		// Page Header Elements
		add_filter('glozin_get_page_header_elements', array( $this, 'elements' ));
		add_filter('glozin_page_header_classes', array( $this, 'classes' ));
		add_filter('glozin_page_header_content_class', '__return_empty_string' );

		add_filter( 'comment_form_fields', array( $this, 'comment_fields_custom_order' ));
	}

	/**
	 * Enqueue scripts and styles.
	 *
	 * @since 1.0.0
	 *
	 * @return void
	 */
	public function enqueue_scripts() {
		$debug = defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '' : '.min';
		wp_enqueue_style( 'glozin-blog', apply_filters( 'glozin_get_style_directory_uri', get_template_directory_uri() ) . '/assets/css/pages/blog' . $debug . '.css', array(), \Glozin\Helper::get_theme_version() );
	}

	public function inline_style( $static_css ) {
		$inline_css = '';
		switch( Helper::get_option('image_rounded_shape_featured_post') ) {
			case 'square':
				$inline_css .= '--gz-image-rounded: 0;';
				break;
			case 'custom':
				if( $number = Helper::get_option('image_rounded_number_featured_post')) {
					$inline_css .= '--gz-image-rounded:' . $number . 'px;';
				}
				break;
		}

		$static_css .= $inline_css ? '.single-post .entry-single-thumbnail{' . $inline_css . '}' : '';

		return $static_css;
	}

	public function site_content_container_class( $classes ) {
		$classes = 'container';

		return $classes;
	}

	/**
	 * Post Format Image
	 *
	 * @since 1.0.0
	 *
	 * @return void
	 */
	public function post_format_image() {
		if( Helper::get_option( 'post_featured_image' ) ) {
			\Glozin\Blog\Post::featured_image();
		}
	}

	/**
	 * Meta post navigation
	 *
	 * @since 1.0.0
	 *
	 * @return void
	 */

	public function navigation() {
		get_template_part( 'template-parts/post/post', 'navigation');
	}

	/**
	 * Related post
	 *
	 * @since 1.0.0
	 *
	 * @return void
	 */
	public function related_posts() {
		get_template_part( 'template-parts/post/related-posts' );
	}

	/**
	 * Get site layout
	 *
	 * @since 1.0.0
	 *
	 * @return string
	 */
	public function content_layout($layout) {
		$layout = self::sidebar();
		$layout = ! $layout ? 'no-sidebar' : $layout;
		return $layout;
	}


	/**
	 * Get Sidebar
	 *
	 * @since 1.0.0
	 *
	 * @return string
	 */
	public static function sidebar() {
		if ( ! is_active_sidebar( 'blog-sidebar' ) ) {
			return false;
		} else {
			$custom_post_sidebar = get_post_meta( get_the_ID(), '_post_sidebar', true );
			$sidebar = empty( $custom_post_sidebar ) ? Helper::get_option( 'post_sidebar' ) : $custom_post_sidebar;
			if( $sidebar == 'no-sidebar' ) {
				return false;
			} else {
				return $sidebar;
			}
		}

	}


	/**
	 * Page Header Elements
	 *
	 * @since 1.0.0
	 *
	 * @return void
	 */
	public function elements( $items ) {
		$items = (array) \Glozin\Helper::get_option( 'single_post_header_els' );

		return $items;
	}

	/**
	 * Page Header Classes
	 *
	 * @since 1.0.0
	 *
	 * @return void
	 */
	public function classes( $classes ) {
		$classes .= ' page-header--single-blog';

		return $classes;
	}

	public function comment_fields_custom_order($fields) {
		$comment_field = $fields['comment'];
		$author_field = $fields['author'];
		$email_field = $fields['email'];
		$url_field = $fields['url'];
		$cookies_field = ! empty( $fields['cookies'] ) ? $fields['cookies'] : '';
		if( isset( $fields['comment']  ) ) {
			unset( $fields['comment'] );
		}
		if( isset( $fields['author']  ) ) {
			unset( $fields['author'] );
		}
		if( isset( $fields['email']  ) ) {
			unset( $fields['email'] );
		}
		if( isset( $fields['url']  ) ) {
			unset( $fields['url'] );
		}

		if( isset( $fields['cookies']  ) ) {
			unset( $fields['cookies'] );
		}

		// the order of fields is the order below, change it as needed:
		$fields['author'] = $author_field;
		$fields['email'] = $email_field;
		$fields['comment'] = $comment_field;
		if( ! empty( $cookies_field ) ) {
			$fields['cookies'] = $cookies_field;
		}
		// done ordering, now return the fields:
		return $fields;
	}
}