/**
 * Overwrites capabilities in certain scenarios.
 *
 * @since  1.0.0
 * @access public
 * @param  array   $caps
 * @param  string  $cap
 * @param  int     $user_id
 * @param  array   $args
 * @return array
 */
function mb_reply_map_meta_cap($caps, $cap, $user_id, $args)
{
    /* Checks if a user can read a specific reply. */
    if ('read_post' === $cap && mb_is_reply($args[0])) {
        $post = get_post($args[0]);
        /* Only run our code if the user isn't the post author. */
        if ($user_id != $post->post_author) {
            $topic_id = $post->post_parent;
            /* If we have a topic and the user can't read it, don't allow reading the reply. */
            if (0 < $topic_id && !user_can($user_id, 'read_post', $topic_id)) {
                $caps = array('do_not_allow');
                /* If the user can read the topic, check if they can read the reply. */
            } else {
                $post_type = get_post_type_object($post->post_type);
                if ($post_type->cap->read !== $post_type->cap->read_others_replies) {
                    $caps[] = $post_type->cap->read_others_replies;
                } else {
                    $caps = array();
                }
            }
        } else {
            $caps = array();
        }
        /* Meta cap for editing a single reply. */
    } elseif ('edit_post' === $cap && mb_is_reply($args[0])) {
        $post = get_post($args[0]);
        $reply_obj = get_post_type_object(mb_get_reply_post_type());
        // Spam topics
        if (mb_is_reply_spam($args[0])) {
            $caps[] = $reply_obj->cap->edit_spam_replies;
        }
        /* Meta cap for spamming a single reply. */
    } elseif ('spam_reply' === $cap) {
        $caps = array();
        $caps[] = user_can($user_id, 'edit_reply', $args[0]) ? 'spam_replies' : 'do_not_allow';
        /* Meta cap check for accessing the reply form. */
    } elseif ('access_reply_form' === $cap) {
        $caps = array('create_replies');
        if (mb_is_single_topic()) {
            $topic_id = mb_get_topic_id();
            $topic_status = mb_get_topic_status($topic_id);
            $topic_type = mb_get_topic_type($topic_id);
            if (!current_user_can('read_topic', $topic_id)) {
                $caps[] = 'do_not_allow';
            } elseif (!mb_topic_allows_replies($topic_id)) {
                $caps[] = 'do_not_allow';
            }
        } elseif (mb_is_reply_edit() && !user_can($user_id, 'edit_post', mb_get_reply_id())) {
            $caps[] = 'do_not_allow';
        }
    }
    return $caps;
}
/**
 * Returns the reply ID.
 *
 * @since  1.0.0
 * @access public
 * @param  int     $reply_id
 * @return int
 */
function mb_get_reply_id($reply_id = 0)
{
    $mb = message_board();
    if (is_numeric($reply_id) && 0 < $reply_id) {
        $_reply_id = $reply_id;
    } elseif ($mb->reply_query->in_the_loop && isset($mb->reply_query->post->ID)) {
        $_reply_id = $mb->reply_query->post->ID;
    } elseif ($mb->search_query->in_the_loop && isset($mb->search_query->post->ID) && mb_is_reply($mb->search_query->post->ID)) {
        $_reply_id = $mb->search_query->post->ID;
    } elseif (mb_is_single_reply()) {
        $_reply_id = get_queried_object_id();
    } elseif (get_query_var('reply_id')) {
        $_reply_id = get_query_var('reply_id');
    } else {
        $_reply_id = 0;
    }
    return apply_filters('mb_get_reply_id', absint($_reply_id), $reply_id);
}
/**
 * Resets topic/reply data when the post status is changed from 'trash' to 'publish'.
 *
 * @since  1.0.0
 * @access public
 * @param  $post  object
 * @return void
 */
function mb_trash_to_publish($post)
{
    if (mb_is_topic($post->ID)) {
        mb_reset_topic_data($post, true);
    } elseif (mb_is_reply($post->ID)) {
        mb_reset_reply_data($post, true);
    }
}
            ?>
<br />
							<?php 
            mb_topic_time();
            ?>
						</td><!-- .mb-col-datetime -->

						<td class="mb-col-author">
							<?php 
            mb_topic_author_profile_link();
            ?>
						</td><!-- .mb-col-author -->
					</tr>

				<?php 
        } elseif (mb_is_reply()) {
            ?>

					<tr <?php 
            post_class();
            ?>
>
						<td class="mb-col-title">
							<?php 
            mb_reply_link();
            ?>
							<div class="mb-reply-summary">
								<?php 
            the_excerpt();
            ?>
							</div><!-- .entry-meta -->
function mb_get_thread_position($post_id = 0)
{
    $post_id = mb_get_post_id($post_id);
    $position = mb_is_reply($post_id) ? mb_get_reply_position($post_id) + 1 : 1;
    return apply_filters('mb_get_thread_position', $position);
}
/**
 * Filter on the post type link for replies. If the user doesn't have permission to view the reply, 
 * return an empty string.  Else, generate the reply URL based on the topic ID.
 *
 * @since  1.0.0
 * @access public
 * @param  string  $link
 * @param  object  $post
 * @return string
 */
function mb_reply_post_type_link($link, $post)
{
    /* If not viewing a reply, return the orignal URL. */
    if (!mb_is_reply($post->ID)) {
        return $link;
    }
    /* If the user can't read the reply, return empty string. */
    if (!current_user_can('read_reply', $post->ID)) {
        return '';
    }
    /* Generate reply URL. */
    $url = mb_generate_reply_url($post->ID);
    return !empty($url) ? $url : $link;
}
/**
 * Returns a forum's last post URL.
 *
 * @since  1.0.0
 * @access public
 * @param  int     $forum_id
 * @return string
 */
function mb_get_forum_last_post_url($forum_id = 0)
{
    $forum_id = mb_get_forum_id($forum_id);
    $last_id = mb_get_forum_last_post_id($forum_id);
    $url = '';
    if ($last_id) {
        $url = mb_is_reply($last_id) ? mb_get_reply_url($last_id) : mb_get_topic_url($last_id);
    }
    return apply_filters('mb_get_forum_last_post_url', $url, $forum_id);
}
/**
 * Filters the edit post link for front-end editing.
 *
 * @since  1.0.0
 * @access public
 * @param  string  $url
 * @param  int     $post_id
 */
function mb_get_edit_post_link($url, $post_id)
{
    if (is_admin()) {
        return $url;
    }
    if (mb_is_forum($post_id)) {
        $url = add_query_arg(array('mb_action' => 'edit', 'forum_id' => $post_id), mb_get_board_home_url());
    } elseif (mb_is_topic($post_id)) {
        $url = add_query_arg(array('mb_action' => 'edit', 'topic_id' => $post_id), mb_get_board_home_url());
    } elseif (mb_is_reply($post_id)) {
        $url = add_query_arg(array('mb_action' => 'edit', 'reply_id' => $post_id), mb_get_board_home_url());
    }
    return $url;
}