Restrict users to vote on one post per category

wp-ulike.php

<?php
function wp_ulike_disable_same_category_actions( $status, $args , $settings ){

	if( $args['type'] === 'post' && get_post_type( $args['item_id'] ) == 'post' ){
		$user_info = wp_ulike_get_meta_data( $args['current_user'], 'user', 'post_status', true );		
						
		if( ! empty( $user_info ) ){
			$category_list = array();
			foreach ($user_info as $item_id => $current_status) {
				if( ! empty($current_status ) && strpos( $current_status, 'un') === false && get_post_type( $item_id ) == 'post' ){
					$categories = get_the_category( $item_id );
					if ( ! empty( $categories ) ) {
						foreach( $categories as $term ) {
							$category_list[] = $term->term_id;
						}
					}
				}
			}

			if( ! empty( $category_list ) ){
				$current_category = get_the_category( $args['item_id'] );
				if ( ! empty( $current_category ) ) {
					foreach( $current_category as $current_term ) {
						if( in_array( $current_term->term_id, $category_list ) ){
							return false;
						}
					}
				}
			}
		}

	}
	
	return $status;
}
add_filter( 'wp_ulike_permission_status', 'wp_ulike_disable_same_category_actions', 10, 3 );