JNews || Custom Avatar Size

<?php

/** START || JNews Custom Avatar Size */

/**
 * JNews Custom || Add New Image Size
 */
function jnews_custom_new_image_size() {
    add_image_size( 'avatar-400x400', 400, 400, true );
}
add_action( 'init', 'jnews_custom_new_image_size' );

/**
 * JNews Custom || Use New Avatar Size
 *
 * @param string $avatar        HTML for the user's avatar.
 * @param mixed  $id_or_email   The avatar to retrieve. Accepts a user ID, Gravatar MD5 hash,
 *                              user email, WP_User object, WP_Post object, or WP_Comment object.
 * @param int    $size          Height and width of the avatar in pixels.
 * @param string $default_value URL for the default image or a default type. Accepts:
 *                              - '404' (return a 404 instead of a default image)
 *                              - 'retro' (a 8-bit arcade-style pixelated face)
 *                              - 'robohash' (a robot)
 *                              - 'monsterid' (a monster)
 *                              - 'wavatar' (a cartoon face)
 *                              - 'identicon' (the "quilt", a geometric pattern)
 *                              - 'mystery', 'mm', or 'mysteryman' (The Oyster Man)
 *                              - 'blank' (transparent GIF)
 *                              - 'gravatar_default' (the Gravatar logo)
 * @param string $alt           Alternative text to use in the avatar image tag.
 * @param array  $args          Arguments passed to get_avatar_data(), after processing.
 */
function jnews_custom_avatar_size( $avatar, $user_id, $size, $default, $alt, $args ) {
    $profile_picture = get_the_author_meta( 'profile_picture', $user_id );

    if ( $profile_picture ) {
        $image = wp_get_attachment_image_src( $profile_picture, 'avatar-400x400' );

        $class = array( 'avatar', 'avatar-' . (int) $args['size'], 'photo' );

        if ( ! $args['found_avatar'] || $args['force_default'] ) {
            $class[] = 'avatar-default';
        }

        if ( $args['class'] ) {
            if ( is_array( $args['class'] ) ) {
                $class = array_merge( $class, $args['class'] );
            } else {
                $class[] = $args['class'];
            }
        }

        $avatar = sprintf(
            "<img alt='%s' src='%s' srcset='%s' class='%s' height='%d' width='%d' %s/>",
            esc_attr( $args['alt'] ),
            esc_url( $image[0] ),
            esc_attr( "$image[0] 2x" ),
            esc_attr( join( ' ', $class ) ),
            (int) $args['height'],
            (int) $args['width'],
            $args['extra_attr']
        );
    }

    return $avatar;
}
add_filter( 'get_avatar', 'jnews_custom_avatar_size', 99, 6 );

/** END || JNews Custom Avatar Size */