<?php

/**

 * WordPress Comment Administration API.

 *

 * @package WordPress

 * @subpackage Administration

 */

/**

 * Determine if a comment exists based on author and date.

 *

 * @since 2.0.0

 * @uses $wpdb

 *

 * @param string $comment_author Author of the comment

 * @param string $comment_date Date of the comment

 * @return mixed Comment post ID on success.

 */

function comment_exists($comment_author, $comment_date) {

	global $wpdb;

	$comment_author = stripslashes($comment_author);

	$comment_date = stripslashes($comment_date);

	return $wpdb->get_var( $wpdb->prepare("SELECT comment_post_ID FROM $wpdb->comments

			WHERE comment_author = %s AND comment_date = %s", $comment_author, $comment_date) );

}

/**

 * Update a comment with values provided in $_POST.

 *

 * @since 2.0.0

 */

function edit_comment() {

	if ( ! current_user_can( 'edit_comment', (int) $_POST['comment_ID'] ) )

		wp_die ( __( 'You are not allowed to edit comments on this post.' ) );

	if ( isset( $_POST['newcomment_author'] ) )

		$_POST['comment_author'] = $_POST['newcomment_author'];

	if ( isset( $_POST['newcomment_author_email'] ) )

		$_POST['comment_author_email'] = $_POST['newcomment_author_email'];

	if ( isset( $_POST['newcomment_author_url'] ) )

		$_POST['comment_author_url'] = $_POST['newcomment_author_url'];

	if ( isset( $_POST['comment_status'] ) )

		$_POST['comment_approved'] = $_POST['comment_status'];

	if ( isset( $_POST['content'] ) )

		$_POST['comment_content'] = $_POST['content'];

	if ( isset( $_POST['comment_ID'] ) )

		$_POST['comment_ID'] = (int) $_POST['comment_ID'];

	foreach ( array ('aa', 'mm', 'jj', 'hh', 'mn') as $timeunit ) {

		if ( !empty( $_POST['hidden_' . $timeunit] ) && $_POST['hidden_' . $timeunit] != $_POST[$timeunit] ) {

			$_POST['edit_date'] = '1';

			break;

		}

	}

	if ( !empty ( $_POST['edit_date'] ) ) {

		$aa = $_POST['aa'];

		$mm = $_POST['mm'];

		$jj = $_POST['jj'];

		$hh = $_POST['hh'];

		$mn = $_POST['mn'];

		$ss = $_POST['ss'];

		$jj = ($jj > 31 ) ? 31 : $jj;

		$hh = ($hh > 23 ) ? $hh -24 : $hh;

		$mn = ($mn > 59 ) ? $mn -60 : $mn;

		$ss = ($ss > 59 ) ? $ss -60 : $ss;

		$_POST['comment_date'] = "$aa-$mm-$jj $hh:$mn:$ss";

	}

	wp_update_comment( $_POST );

}

/**

 * Returns a comment object based on comment ID.

 *

 * @since 2.0.0

 *

 * @param int $id ID of comment to retrieve.

 * @return bool|object Comment if found. False on failure.

 */

function get_comment_to_edit( $id ) {

	if ( !$comment = get_comment($id) )

		return false;

	$comment->comment_ID = (int) $comment->comment_ID;

	$comment->comment_post_ID = (int) $comment->comment_post_ID;

	$comment->comment_content = format_to_edit( $comment->comment_content );

	/**

	 * Filter the comment content before editing.

	 *

	 * @since 2.0.0

	 *

	 * @param string $comment->comment_content Comment content.

	 */

	$comment->comment_content = apply_filters( 'comment_edit_pre', $comment->comment_content );

	$comment->comment_author = format_to_edit( $comment->comment_author );

	$comment->comment_author_email = format_to_edit( $comment->comment_author_email );

	$comment->comment_author_url = format_to_edit( $comment->comment_author_url );

	$comment->comment_author_url = esc_url($comment->comment_author_url);

	return $comment;

}

/**

 * Get the number of pending comments on a post or posts

 *

 * @since 2.3.0

 * @uses $wpdb

 *

 * @param int|array $post_id Either a single Post ID or an array of Post IDs

 * @return int|array Either a single Posts pending comments as an int or an array of ints keyed on the Post IDs

 */

function get_pending_comments_num( $post_id ) {

	global $wpdb;

	$single = false;

	if ( !is_array($post_id) ) {

		$post_id_array = (array) $post_id;

		$single = true;

	} else {

		$post_id_array = $post_id;

	}

	$post_id_array = array_map('intval', $post_id_array);

	$post_id_in = "'" . implode("', '", $post_id_array) . "'";

	$pending = $wpdb->get_results( "SELECT comment_post_ID, COUNT(comment_ID) as num_comments FROM $wpdb->comments WHERE comment_post_ID IN ( $post_id_in ) AND comment_approved = '0' GROUP BY comment_post_ID", ARRAY_A );

	if ( $single ) {

		if ( empty($pending) )

			return 0;

		else

			return absint($pending[0]['num_comments']);

	}

	$pending_keyed = array();

	// Default to zero pending for all posts in request

	foreach ( $post_id_array as $id )

		$pending_keyed[$id] = 0;

	if ( !empty($pending) )

		foreach ( $pending as $pend )

			$pending_keyed[$pend['comment_post_ID']] = absint($pend['num_comments']);

	return $pending_keyed;

}

/**

 * Add avatars to relevant places in admin, or try to.

 *

 * @since 2.5.0

 * @uses $comment

 *

 * @param string $name User name.

 * @return string Avatar with Admin name.

 */

function floated_admin_avatar( $name ) {

	global $comment;

	$avatar = get_avatar( $comment, 32, 'mystery' );

	return "$avatar $name";

}

function enqueue_comment_hotkeys_js() {

	if ( 'true' == get_user_option( 'comment_shortcuts' ) )

		wp_enqueue_script( 'jquery-table-hotkeys' );

}