<?php

/**

 * WordPress Link Template Functions

 *

 * @package WordPress

 * @subpackage Template

 */

/**

 * Displays the permalink for the current post.

 *

 * @since 1.2.0

 * @since 4.4.0 Added the `$post` parameter.

 *

 * @param int|WP_Post $post Optional. Post ID or post object. Default is the global `$post`.

 */

function the_permalink( $post = 0 ) {

	/**

	 * Filters the display of the permalink for the current post.

	 *

	 * @since 1.5.0

	 * @since 4.4.0 Added the `$post` parameter.

	 *

	 * @param string      $permalink The permalink for the current post.

	 * @param int|WP_Post $post      Post ID, WP_Post object, or 0. Default 0.

	 */

	echo esc_url( apply_filters( 'the_permalink', get_permalink( $post ), $post ) );

}

/**

 * Retrieves a trailing-slashed string if the site is set for adding trailing slashes.

 *

 * Conditionally adds a trailing slash if the permalink structure has a trailing

 * slash, strips the trailing slash if not. The string is passed through the

 * {@see 'user_trailingslashit'} filter. Will remove trailing slash from string, if

 * site is not set to have them.

 *

 * @since 2.2.0

 *

 * @global WP_Rewrite $wp_rewrite

 *

 * @param string $string      URL with or without a trailing slash.

 * @param string $type_of_url Optional. The type of URL being considered (e.g. single, category, etc)

 *                            for use in the filter. Default empty string.

 * @return string The URL with the trailing slash appended or stripped.

 */

	global $wp_rewrite;

	/**

	 * Filters the trailing-slashed string, depending on whether the site is set to use trailing slashes.

	 *

	 * @since 2.2.0

	 *

	 * @param string $string      URL with or without a trailing slash.

	 * @param string $type_of_url The type of URL being considered. Accepts 'single', 'single_trackback',

	 *                            'single_feed', 'single_paged', 'commentpaged', 'paged', 'home', 'feed',

	 *                            'category', 'page', 'year', 'month', 'day', 'post_type_archive'.

	 */

	return apply_filters( 'user_trailingslashit', $string, $type_of_url );

}

/**

 * Displays the permalink anchor for the current post.

 *

 * The permalink mode title will use the post title for the 'a' element 'id'

 * attribute. The id mode uses 'post-' with the post ID for the 'id' attribute.

 *

 * @since 0.71

 *

 * @param string $mode Optional. Permalink mode. Accepts 'title' or 'id'. Default 'id'.

 */

function permalink_anchor( $mode = 'id' ) {

	$post = get_post();

	switch ( strtolower( $mode ) ) {

		case 'title':

			$title = sanitize_title( $post->post_title ) . '-' . $post->ID;

			break;

		case 'id':

		default:

			echo '<a id="post-' . $post->ID . '"></a>';

			break;

	}

}

/**

 * Retrieves the full permalink for the current post or post ID.

 *

 * This function is an alias for get_permalink().

 *

 * @since 3.9.0

 *

 * @see get_permalink()

 *

 * @param int|WP_Post $post      Optional. Post ID or post object. Default is the global `$post`.

 * @param bool        $leavename Optional. Whether to keep post name or page name. Default false.

 *

 * @return string|false The permalink URL or false if post does not exist.

 */

function get_the_permalink( $post = 0, $leavename = false ) {

	return get_permalink( $post, $leavename );

}

/**

 * Retrieves the full permalink for the current post or post ID.

 *

 * @since 1.0.0

 *

 * @param int|WP_Post $post      Optional. Post ID or post object. Default is the global `$post`.

 * @param bool        $leavename Optional. Whether to keep post name or page name. Default false.

 * @return string|false The permalink URL or false if post does not exist.

 */

function get_permalink( $post = 0, $leavename = false ) {

	$rewritecode = array(

		'%year%',

		'%monthnum%',

		'%day%',

		'%hour%',

		'%minute%',

		'%second%',

		'%post_id%',

		'%category%',

		'%author%',

	);

	if ( is_object( $post ) && isset( $post->filter ) && 'sample' == $post->filter ) {

		$sample = true;

	} else {

		$sample = false;

	}

		return false;

		return get_attachment_link( $post, $leavename );

	/**

	 * Filters the permalink structure for a post before token replacement occurs.

	 *

	 * Only applies to posts with post_type of 'post'.

	 *

	 * @since 3.0.0

	 *

	 * @param string  $permalink The site's permalink structure.

	 * @param WP_Post $post      The post in question.

	 * @param bool    $leavename Whether to keep the post name.

	 */

	$permalink = apply_filters( 'pre_post_link', $permalink, $post, $leavename );

		$category = '';

			if ( $cats ) {

				/**

				 * Filters the category that gets used in the %category% permalink token.

				 *

				 * @since 3.5.0

				 *

				 * @param WP_Term  $cat  The category to use in the permalink.

				 * @param array    $cats Array of all categories (WP_Term objects) associated with the post.

				 * @param WP_Post  $post The post in question.

				 */

				$category_object = apply_filters( 'post_link_category', $cats[0], $cats, $post );

				$category_object = get_term( $category_object, 'category' );

			}

			// show default category in permalinks, without

			// having to assign it explicitly

				$default_category = get_term( get_option( 'default_category' ), 'category' );

				if ( $default_category && ! is_wp_error( $default_category ) ) {

					$category = $default_category->slug;

				}

			}

		}

		$author = '';

		}

		$rewritereplace =

		array(

			$date[0],

			$date[1],

			$date[2],

			$date[3],

			$date[4],

			$date[5],

			$post->post_name,

			$post->ID,

			$category,

			$author,

			$post->post_name,

		);

	} else { // if they're not using the fancy permalink option

	}

	/**

	 * Filters the permalink for a post.

	 *

	 * Only applies to posts with post_type of 'post'.

	 *

	 * @since 1.5.0

	 *

	 * @param string  $permalink The post's permalink.

	 * @param WP_Post $post      The post in question.

	 * @param bool    $leavename Whether to keep the post name.

	 */

	return apply_filters( 'post_link', $permalink, $post, $leavename );

}

/**

 * Retrieves the permalink for a post of a custom post type.

 *

 * @since 3.0.0

 *

 * @global WP_Rewrite $wp_rewrite

 *

 * @param int|WP_Post $id        Optional. Post ID or post object. Default is the global `$post`.

 * @param bool        $leavename Optional, defaults to false. Whether to keep post name. Default false.

 * @param bool        $sample    Optional, defaults to false. Is it a sample permalink. Default false.

 * @return string|WP_Error The post permalink.

 */

function get_post_permalink( $id = 0, $leavename = false, $sample = false ) {

	global $wp_rewrite;

		return $post;

	$slug = $post->post_name;

	$draft_or_pending = get_post_status( $post ) && in_array( get_post_status( $post ), array( 'draft', 'pending', 'auto-draft', 'future' ) );

	if ( $post_type->hierarchical ) {

		$slug = get_page_uri( $post );

	}

		if ( ! $leavename ) {

		}

	} else {

	}

	/**

	 * Filters the permalink for a post of a custom post type.

	 *

	 * @since 3.0.0

	 *

	 * @param string  $post_link The post's permalink.

	 * @param WP_Post $post      The post in question.

	 * @param bool    $leavename Whether to keep the post name.

	 * @param bool    $sample    Is it a sample permalink.

	 */

	return apply_filters( 'post_type_link', $post_link, $post, $leavename, $sample );

}

/**

 * Retrieves the permalink for the current page or page ID.

 *

 * Respects page_on_front. Use this one.

 *

 * @since 1.5.0

 *

 * @param int|WP_Post $post      Optional. Post ID or object. Default uses the global `$post`.

 * @param bool        $leavename Optional. Whether to keep the page name. Default false.

 * @param bool        $sample    Optional. Whether it should be treated as a sample permalink.

 *                               Default false.

 * @return string The page permalink.

 */

function get_page_link( $post = false, $leavename = false, $sample = false ) {

	$post = get_post( $post );

		$link = _get_page_link( $post, $leavename, $sample );

	/**

	 * Filters the permalink for a page.

	 *

	 * @since 1.5.0

	 *

	 * @param string $link    The page's permalink.

	 * @param int    $post_id The ID of the page.

	 * @param bool   $sample  Is it a sample permalink.

	 */

	return apply_filters( 'page_link', $link, $post->ID, $sample );

}

/**

 * Retrieves the page permalink.

 *

 * Ignores page_on_front. Internal use only.

 *

 * @since 2.1.0

 * @access private

 *

 * @global WP_Rewrite $wp_rewrite

 *

 * @param int|WP_Post $post      Optional. Post ID or object. Default uses the global `$post`.

 * @param bool        $leavename Optional. Whether to keep the page name. Default false.

 * @param bool        $sample    Optional. Whether it should be treated as a sample permalink.

 *                               Default false.

 * @return string The page permalink.

 */

function _get_page_link( $post = false, $leavename = false, $sample = false ) {

	global $wp_rewrite;

	$post = get_post( $post );

	$draft_or_pending = in_array( $post->post_status, array( 'draft', 'pending', 'auto-draft' ) );

	$link = $wp_rewrite->get_page_permastruct();

		if ( ! $leavename ) {

		}

	} else {

		$link = home_url( '?page_id=' . $post->ID );

	}

	/**

	 * Filters the permalink for a non-page_on_front page.

	 *

	 * @since 2.1.0

	 *

	 * @param string $link    The page's permalink.

	 * @param int    $post_id The ID of the page.

	 */

	return apply_filters( '_get_page_link', $link, $post->ID );

}

/**

 * Retrieves the permalink for an attachment.

 *

 * This can be used in the WordPress Loop or outside of it.

 *

 * @since 2.0.0

 *

 * @global WP_Rewrite $wp_rewrite

 *

 * @param int|object $post      Optional. Post ID or object. Default uses the global `$post`.

 * @param bool       $leavename Optional. Whether to keep the page name. Default false.

 * @return string The attachment permalink.

 */

function get_attachment_link( $post = null, $leavename = false ) {

	global $wp_rewrite;

	$link = false;

	$parent = ( $post->post_parent > 0 && $post->post_parent != $post->ID ) ? get_post( $post->post_parent ) : false;

	if ( $parent && ! in_array( $parent->post_type, get_post_types() ) ) {

		$parent = false;

	}

	if ( $wp_rewrite->using_permalinks() && $parent ) {

			$parentlink = _get_page_link( $post->post_parent ); // Ignores page_on_front

			$parentlink = get_permalink( $post->post_parent );

			$name = 'attachment/' . $post->post_name; // <permalink>/<int>/ is paged so we use the explicit attachment marker

			$name = $post->post_name;

			$link = str_replace( '%postname%', $name, $link );

	} elseif ( $wp_rewrite->using_permalinks() && ! $leavename ) {

		$link = home_url( user_trailingslashit( $post->post_name ) );

	}

		$link = home_url( '/?attachment_id=' . $post->ID );

	/**

	 * Filters the permalink for an attachment.

	 *

	 * @since 2.0.0

	 *

	 * @param string $link    The attachment's permalink.

	 * @param int    $post_id Attachment ID.

	 */

	return apply_filters( 'attachment_link', $link, $post->ID );

}

/**

 * Retrieves the permalink for the year archives.

 *

 * @since 1.5.0

 *

 * @global WP_Rewrite $wp_rewrite

 *

 * @param int|bool $year False for current year or year for permalink.

 * @return string The permalink for the specified year archive.

 */

function get_year_link( $year ) {

	global $wp_rewrite;

	$yearlink = $wp_rewrite->get_year_permastruct();

		$yearlink = home_url( user_trailingslashit( $yearlink, 'year' ) );

	} else {

		$yearlink = home_url( '?m=' . $year );

	}

	/**

	 * Filters the year archive permalink.

	 *

	 * @since 1.5.0

	 *

	 * @param string $yearlink Permalink for the year archive.

	 * @param int    $year     Year for the archive.

	 */

	return apply_filters( 'year_link', $yearlink, $year );

}

/**

 * Retrieves the permalink for the month archives with year.