functions.php

<?php

if (function_exists('wpp_fix_post_time'))
    add_filter('get_the_date', 'wpp_fix_post_time', 10, 2);


load_theme_textdomain('default', get_template_directory() . '/languages');

/**
 * load languages
 */
function setup_theme()
{
    load_theme_textdomain('default', get_template_directory() . '/languages');
    add_theme_support('title-tag');
    register_nav_menu('header-menu', __('Header Menu'));
    register_nav_menu('footer-menu', __('Footer Menu'));
}

add_action('after_setup_theme', 'setup_theme');

function parsav6_scripts()
{
    if (is_singular() && comments_open() && get_option('thread_comments')) {
        wp_enqueue_script('comment-reply');
    }
}

add_action('wp_enqueue_scripts', 'parsav6_scripts');

// Change “Read more” link in Wordpress 4.1 to prevent scroll/remove “more-X” hash
function remove_more_link_scroll( $link )
{
    $link = preg_replace( '|#more-[0-9]+|', '', $link );
    return $link;
}
add_filter( 'the_content_more_link', 'remove_more_link_scroll' );


/**
 * theme panel page
 */
function theme_settings_page()
{
    ?>
    <div class="wrap">
        <h1><?php _e('Theme Panel'); ?></h1>
        <form method="post" action="options.php">
            <?php
            settings_fields("section");
            do_settings_sections("theme-options");
            submit_button();
            ?>
        </form>
    </div>
    <?php
}


/**
 * Adding query string to load new version not the cache one
 */
 function stylesheet_uri_versioner($stylesheet_uri) {
    return add_query_arg( array( 'v' => wp_get_theme()->version), $stylesheet_uri);
}
add_filter('stylesheet_uri', 'stylesheet_uri_versioner');


/**
 * Adding query string to load new version not the cache one
 */
function locale_stylesheet_uri_versioner($localized_stylesheet_uri) {
    return add_query_arg( array('v' => wp_get_theme()->version), $localized_stylesheet_uri );
}
add_filter( 'locale_stylesheet_uri', 'locale_stylesheet_uri_versioner' );


/**
 * Add theme pannel to the wordpress dashboad menu
 */
function add_theme_menu_item()
{
    add_menu_page(__('Theme Panel'), __('Theme Panel'), "manage_options", "theme-panel", "theme_settings_page", null, 99);
}
add_action("admin_menu", "add_theme_menu_item");


function showing_months_in_archive()
{
    ?>
       	<input type="checkbox" name="showing_months_in_archive" id="showing_months_in_archive" <?=(get_option('showing_months_in_archive')) ? 'checked' : ''?> />
           <?=(get_option('showing_months_in_archive')) ? __('Active') : __('Deactive') ?>   
    <?php
}

function meta_tag_option()
{
	?>
    	<input type="checkbox" name="meta_tag_option" id="meta_tag_option" <?=(get_option('meta_tag_option')) ? 'checked' : ''?> />
        <?=(get_option('meta_tag_option')) ? __('Active') : __('Deactive') ?>
    <?php
}

function showing_comments_count_in_archive()
{
    ?>
    	<input type="checkbox" name="showing_comments_count_in_archive" id="showing_comments_count_in_archive" <?=(get_option('showing_comments_count_in_archive')) ? 'checked' : ''?> />
        <?=(get_option('showing_comments_count_in_archive')) ? __('Active') : __('Deactive') ?>
    <?php
}

function display_first_header_link()
{
    ?>
    <?php _e('link'); ?> : <input type="text" name="first_header_url" id="first_header_url"
                                  value="<?php echo get_option('first_header_url'); ?>"/>
    <?php _e('text'); ?> : <input type="text" name="first_header_url_text" id="first_header_url_text"
                                  value="<?php echo get_option('first_header_url_text'); ?>"/>
    <?php
}

function display_second_header_link()
{
    ?>
    <?php _e('link'); ?> : <input type="text" name="second_header_url" id="second_header_url"
                                  value="<?php echo get_option('second_header_url'); ?>"/>
    <?php _e('text'); ?> : <input type="text" name="second_header_url_text" id="second_header_url_text"
                                  value="<?php echo get_option('second_header_url_text'); ?>"/>
    <?php
}

function display_third_header_link()
{
    ?>
    <?php _e('link'); ?> : <input type="text" name="third_header_url" id="third_header_url"
                                  value="<?php echo get_option('third_header_url'); ?>"/>
    <?php _e('text'); ?> : <input type="text" name="third_header_url_text" id="third_header_url_text"
                                  value="<?php echo get_option('third_header_url_text'); ?>"/>
    <?php
}

function display_fourth_header_link()
{
    ?>
    <?php _e('link'); ?> : <input type="text" name="fourth_header_url" id="fourth_header_url"
                                  value="<?php echo get_option('fourth_header_url'); ?>"/>
    <?php _e('text'); ?> : <input type="text" name="fourth_header_url_text" id="fourth_header_url_text"
                                  value="<?php echo get_option('fourth_header_url_text'); ?>"/>
    <?php
}

function display_fifth_header_link()
{
    ?>
    <?php _e('link'); ?> : <input type="text" name="fifth_header_url" id="fifth_header_url"
                                  value="<?php echo get_option('fifth_header_url'); ?>"/>
    <?php _e('text'); ?> : <input type="text" name="fifth_header_url_text" id="fifth_header_url_text"
                                  value="<?php echo get_option('fifth_header_url_text'); ?>"/>
    <?php
}


function display_first_footer_link()
{
    ?>
    <?php _e('link'); ?> : <input type="text" name="first_footer_url" id="first_footer_url"
                                  value="<?php echo get_option('first_footer_url'); ?>"/>
    <?php _e('text'); ?> : <input type="text" name="first_footer_url_text" id="first_footer_url_text"
                                  value="<?php echo get_option('first_footer_url_text'); ?>"/>
    <?php
}

function display_second_footer_link()
{
    ?>
    <?php _e('link'); ?> : <input type="text" name="second_footer_url" id="second_footer_url"
                                  value="<?php echo get_option('second_footer_url'); ?>"/>
    <?php _e('text'); ?> : <input type="text" name="second_footer_url_text" id="second_footer_url_text"
                                  value="<?php echo get_option('second_footer_url_text'); ?>"/>
    <?php
}

function display_third_footer_link()
{
    ?>
    <?php _e('link'); ?> : <input type="text" name="third_footer_url" id="third_footer_url"
                                  value="<?php echo get_option('third_footer_url'); ?>"/>
    <?php _e('text'); ?> : <input type="text" name="third_footer_url_text" id="third_footer_url_text"
                                  value="<?php echo get_option('third_footer_url_text'); ?>"/>
    <?php
}

function display_fourth_footer_link()
{
    ?>
    <?php _e('link'); ?> : <input type="text" name="fourth_footer_url" id="fourth_header_url"
                                  value="<?php echo get_option('fourth_footer_url'); ?>"/>
    <?php _e('text'); ?> : <input type="text" name="fourth_footer_url_text" id="fourth_footer_url_text"
                                  value="<?php echo get_option('fourth_footer_url_text'); ?>"/>
    <?php
}

function display_fifth_footer_link()
{
    ?>
    <?php _e('link'); ?> : <input type="text" name="fifth_footer_url" id="fifth_footer_url"
                                  value="<?php echo get_option('fifth_footer_url'); ?>"/>
    <?php _e('text'); ?> : <input type="text" name="fifth_footer_url_text" id="fifth_header_url_text"
                                  value="<?php echo get_option('fifth_footer_url_text'); ?>"/>
    <?php
}

function display_sixth_footer_link()
{
    ?>
    <?php _e('link'); ?> : <input type="text" name="sixth_footer_url" id="sixth_footer_url"
                                  value="<?php echo get_option('sixth_footer_url'); ?>"/>
    <?php _e('text'); ?> : <input type="text" name="sixth_footer_url_text" id="sixth_header_url_text"
                                  value="<?php echo get_option('sixth_footer_url_text'); ?>"/>
    <?php
}

function display_seventh_footer_link()
{
    ?>
    <?php _e('link'); ?> : <input type="text" name="seventh_footer_url" id="seventh_footer_url"
                                  value="<?php echo get_option('seventh_footer_url'); ?>"/>
    <?php _e('text'); ?> : <input type="text" name="seventh_footer_url_text" id="seventh_header_url_text"
                                  value="<?php echo get_option('seventh_footer_url_text'); ?>"/>
    <?php
}

function display_eighth_footer_link()
{
    ?>
    <?php _e('link'); ?> : <input type="text" name="eighth_footer_url" id="eighth_footer_url"
                                  value="<?php echo get_option('eighth_footer_url'); ?>"/>
    <?php _e('text'); ?> : <input type="text" name="eighth_footer_url_text" id="eighth_header_url_text"
                                  value="<?php echo get_option('eighth_footer_url_text'); ?>"/>
    <?php
}

function display_footer_text()
{
	?>
			<?php _e('text'); ?> : <textarea type="text" name="footer_text" id="footer_text"><?php echo htmlentities(get_option('footer_text'), ENT_QUOTES | ENT_IGNORE, "UTF-8"); ?></textarea>
<?php
}


/**
 * Add theme panel's field
 */
function display_theme_panel_fields()
{
    add_settings_section("section", __('All settings'), null, "theme-options");

    add_settings_field("showing_months_in_archive", __('Showing months in archive'), "showing_months_in_archive", "theme-options", "section");
    register_setting("section", "showing_months_in_archive");

    add_settings_field("meta_tag_option",  __('Meta tag option') , "meta_tag_option", "theme-options", "section");
    register_setting("section", "meta_tag_option"); 
    
    add_settings_field("showing_comments_count_in_archive", __('Showing comments count in archive'), "showing_comments_count_in_archive", "theme-options", "section");
    register_setting("section", "showing_comments_count_in_archive");

    add_settings_field("first_header_url", "#1 " . __('Header link'), "display_first_header_link", "theme-options", "section");
    add_settings_field("second_header_url", "#2 " . __('Header link'), "display_second_header_link", "theme-options", "section");
    add_settings_field("third_header_url", "#3 " . __('Header link'), "display_third_header_link", "theme-options", "section");
    add_settings_field("fourth_header_url", "#4 " . __('Header link'), "display_fourth_header_link", "theme-options", "section");
    add_settings_field("fifth_header_url", "#5 " . __('Header link'), "display_fifth_header_link", "theme-options", "section");

    register_setting("section", "first_header_url");
    register_setting("section", "first_header_url_text");

    register_setting("section", "second_header_url");
    register_setting("section", "second_header_url_text");

    register_setting("section", "third_header_url");
    register_setting("section", "third_header_url_text");

    register_setting("section", "fourth_header_url");
    register_setting("section", "fourth_header_url_text");

    register_setting("section", "fifth_header_url");
    register_setting("section", "fifth_header_url_text");

    add_settings_field("first_footer_url", "#1 " . __('Footer link'), "display_first_footer_link", "theme-options", "section");
    add_settings_field("second_footer_url", "#2 " . __('Footer link'), "display_second_footer_link", "theme-options", "section");
    add_settings_field("third_footer_url", "#3 " . __('Footer link'), "display_third_footer_link", "theme-options", "section");
    add_settings_field("fourth_footer_url", "#4 " . __('Footer link'), "display_fourth_footer_link", "theme-options", "section");
    add_settings_field("fifth_footer_url", "#5 " . __('Footer link'), "display_fifth_footer_link", "theme-options", "section");
    add_settings_field("sixth_footer_url", "#6 " . __('Footer link'), "display_sixth_footer_link", "theme-options", "section");
    add_settings_field("seventh_footer_url", "#7 " . __('Footer link'), "display_seventh_footer_link", "theme-options", "section");
    add_settings_field("eighth_footer_url", "#8 " . __('Footer link'), "display_eighth_footer_link", "theme-options", "section");

    register_setting("section", "first_footer_url");
    register_setting("section", "first_footer_url_text");

    register_setting("section", "second_footer_url");
    register_setting("section", "second_footer_url_text");

    register_setting("section", "third_footer_url");
    register_setting("section", "third_footer_url_text");

    register_setting("section", "fourth_footer_url");
    register_setting("section", "fourth_footer_url_text");

    register_setting("section", "fifth_footer_url");
    register_setting("section", "fifth_footer_url_text");

    register_setting("section", "sixth_footer_url");
    register_setting("section", "sixth_footer_url_text");

    register_setting("section", "seventh_footer_url");
    register_setting("section", "seventh_footer_url_text");

    register_setting("section", "eighth_footer_url");
    register_setting("section", "eighth_footer_url_text");


    add_settings_field("footer_text", __('Footer text') . ' (html)', "display_footer_text", "theme-options", "section");
    register_setting("section", "footer_text");
}
add_action("admin_init", "display_theme_panel_fields");

 
/**
 * Adding extra fields to have metas for posts.
 */
function prfx_custom_meta() {
    if ( ! get_option('meta_tag_option') ) {
        return;
    }
    add_meta_box( 'prfx_meta', __( 'Custom style' ), 'prfx_meta_callback', 'post' );
}
add_action('add_meta_boxes', 'prfx_custom_meta' );


/**
 * the presentaion of custom meta boxs in new_post
 */
function prfx_meta_callback( $post ) {
    wp_nonce_field( basename( __FILE__ ), 'prfx_nonce' );
    $prfx_stored_meta = get_post_meta( $post->ID );
    ?>
    <p> 
        <label for="meta-price" class="prfx-row-title"><?php _e( 'Tag title' )?></label>
        <input type="text" name="meta-tag-title" id="meta-tag-title" value="<?php if ( isset ( $prfx_stored_meta['meta-tag-title'] ) ) echo $prfx_stored_meta['meta-tag-title'][0]; ?>" />
        
        <label for="meta-distance" class="prfx-row-title"><?php echo __( 'Tag color' ) . ' (hex, i.e: eeffdd)' ?></label>
        <input type="text" name="meta-tag-color" id="meta-tag-color" value="<?php if ( isset ( $prfx_stored_meta['meta-tag-color'] ) ) echo $prfx_stored_meta['meta-tag-color'][0]; ?>" />
        
    </p>   
    <?php
}


/**
 * Saves the custom meta input
 */
add_action( 'save_post', 'prfx_meta_save' );
function prfx_meta_save( $post_id ) {
    // Checks save status
    $is_autosave = wp_is_post_autosave( $post_id );
    $is_revision = wp_is_post_revision( $post_id );
    $is_valid_nonce = ( isset( $_POST[ 'prfx_nonce' ] ) && wp_verify_nonce( $_POST[ 'prfx_nonce' ], basename( __FILE__ ) ) ) ? 'true' : 'false';

    // Exits script depending on save status
    if ( $is_autosave || $is_revision || ! $is_valid_nonce ) {
        return;
    }

    // Checks for input and sanitizes/saves if needed
    if( isset( $_POST[ 'meta-tag-title'])) {
        update_post_meta( $post_id, 'meta-tag-title', sanitize_text_field( $_POST[ 'meta-tag-title' ] ) );
    }

    if(isset($_POST['meta-tag-color'])) {
        update_post_meta( $post_id, 'meta-tag-color', sanitize_text_field( $_POST[ 'meta-tag-color' ] ) );
    } 
}


/**
 * Add user role label next to comments
 */
if ( ! class_exists( 'WPB_Comment_Author_Role_Label' ) ) {
    class WPB_Comment_Author_Role_Label {

        public function __construct() {
            add_filter( 'get_comment_author', array( $this, 'wpb_get_comment_author_role' ), 10, 3 );
            add_filter( 'get_comment_author_link', array( $this, 'wpb_comment_author_role' ) );
        }
     
        // Get comment author role 
        function wpb_get_comment_author_role($author, $comment_id, $comment) { 
            $authoremail = get_comment_author_email( $comment); 
            // Check if user is registered
            if (email_exists($authoremail)) {
                $commet_user_role = get_user_by( 'email', $authoremail );
                $comment_user_role = $commet_user_role->roles[0];
                // HTML output to add next to comment author name
                $this->comment_user_role = ' <span class="comment-author-label comment-author-label-'.$comment_user_role.'">' . __(ucfirst($comment_user_role)) . '</span>';
            } else { 
                $this->comment_user_role = '';
            } 
            return $author;
        } 
     
        // Display comment author                   
        function wpb_comment_author_role($author) { 
            return $author .= $this->comment_user_role; 
        } 
    }
    new WPB_Comment_Author_Role_Label;
}