?php
/**
 * Blog CPT(new): /blogs/{slug}/ -> /blog/{slug}/
 * Old URLs 301 redirect. Does not modify .htaccess.
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

add_filter(
	'register_post_type_args',
	function ( $args, $post_type ) {
		if ( 'new' !== $post_type ) {
			return $args;
		}
		$args['rewrite']     = array(
			'slug'       => 'blog',
			'with_front' => false,
		);
		$args['has_archive'] = true;
		return $args;
	},
	20,
	2
);

add_action(
	'init',
	function () {
		add_rewrite_rule( '^blog/([^/]+)/?$', 'index.php?post_type=new&name=$matches[1]', 'top' );
		add_rewrite_rule( '^blog/page/([0-9]+)/?$', 'index.php?post_type=new&paged=$matches[1]', 'top' );
		add_rewrite_rule( '^blog/?$', 'index.php?post_type=new', 'top' );
	},
	30
);

add_filter(
	'post_type_link',
	function ( $post_link, $post ) {
		if ( ! is_object( $post ) || 'new' !== $post->post_type ) {
			return $post_link;
		}
		return str_replace( '/blogs/', '/blog/', $post_link );
	},
	100,
	2
);

add_filter(
	'custom_permalink_before_saving',
	function ( $permalink ) {
		if ( is_string( $permalink ) ) {
			$permalink = str_replace( array( '/blogs/', 'blogs/' ), array( '/blog/', 'blog/' ), $permalink );
		}
		return $permalink;
	}
);

/**
 * Resolve /blog/{slug}/ even when Custom Permalinks meta still has blogs/.
 */
add_filter(
	'request',
	function ( $query ) {
		$path = trim( (string) parse_url( isset( $_SERVER['REQUEST_URI'] ) ? $_SERVER['REQUEST_URI'] : '', PHP_URL_PATH ), '/' );

		if ( 'blog' === $path ) {
			$query['post_type'] = 'new';
			unset( $query['pagename'], $query['page'], $query['error'], $query['name'], $query['category_name'] );
			return $query;
		}

		if ( ! preg_match( '#^blog/([^/]+)$#', $path, $m ) ) {
			return $query;
		}

		$slug = sanitize_title( $m[1] );
		global $wpdb;

		$post_id = $wpdb->get_var(
			$wpdb->prepare(
				"SELECT post_id FROM {$wpdb->postmeta} WHERE meta_key = 'custom_permalink' AND meta_value IN (%s,%s,%s,%s) LIMIT 1",
				'blog/' . $slug,
				'blog/' . $slug . '/',
				'blogs/' . $slug,
				'blogs/' . $slug . '/'
			)
		);

		$post = $post_id ? get_post( (int) $post_id ) : get_page_by_path( $slug, OBJECT, 'new' );
		if ( $post && 'new' === $post->post_type && 'publish' === $post->post_status ) {
			return array(
				'post_type' => 'new',
				'name'      => $post->post_name,
			);
		}

		return $query;
	},
	1
);

/**
 * 301: /blogs/... -> /blog/...
 */
add_action(
	'template_redirect',
	function () {
		$path = trim( (string) parse_url( $_SERVER['REQUEST_URI'], PHP_URL_PATH ), '/' );
		if ( ! preg_match( '#^blogs(?:/(.*))?$#', $path, $m ) ) {
			return;
		}
		$rest = isset( $m[1] ) ? trim( $m[1], '/' ) : '';
		$dest = ( '' === $rest ) ? '/blog/' : user_trailingslashit( 'blog/' . $rest );
		wp_redirect( home_url( $dest ), 301 );
		exit;
	},
	0
);

add_filter(
	'redirect_canonical',
	function ( $redirect_url, $requested_url ) {
		if ( $redirect_url && false !== strpos( $redirect_url, '/blogs/' ) && false !== strpos( $requested_url, '/blog/' ) ) {
			return false;
		}
		return $redirect_url;
	},
	10,
	2
);

/**
 * One-time migration of Custom Permalinks meta + flush rewrites.
 */
add_action(
	'init',
	function () {
		if ( get_option( 'newlight_blog_slug_v4' ) ) {
			return;
		}

		$ids = get_posts(
			array(
				'post_type'      => 'new',
				'post_status'    => 'any',
				'posts_per_page' => -1,
				'fields'         => 'ids',
			)
		);

		foreach ( $ids as $id ) {
			$cp = get_post_meta( $id, 'custom_permalink', true );
			if ( is_string( $cp ) && false !== strpos( $cp, 'blogs' ) ) {
				$new_cp = str_replace( array( '/blogs/', 'blogs/' ), array( '/blog/', 'blog/' ), $cp );
				if ( $new_cp !== $cp ) {
					update_post_meta( $id, 'custom_permalink', $new_cp );
				}
			}
		}

		$table = get_option( 'custom_permalink_table' );
		if ( is_array( $table ) ) {
			$new_table = array();
			foreach ( $table as $key => $val ) {
				$new_key             = is_string( $key ) ? str_replace( array( '/blogs/', 'blogs/' ), array( '/blog/', 'blog/' ), $key ) : $key;
				$new_table[ $new_key ] = $val;
			}
			update_option( 'custom_permalink_table', $new_table );
		}

		flush_rewrite_rules( false );
		update_option( 'newlight_blog_slug_v4', 1 );
	},
	99
);
<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="//www.xmnewlight.com/main-sitemap.xsl"?>
<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
	<sitemap>
		<loc>https://www.xmnewlight.com/post-sitemap.xml</loc>
		<lastmod>2026-07-21T02:40:33+00:00</lastmod>
	</sitemap>
	<sitemap>
		<loc>https://www.xmnewlight.com/page-sitemap.xml</loc>
		<lastmod>2026-07-20T14:29:18+00:00</lastmod>
	</sitemap>
	<sitemap>
		<loc>https://www.xmnewlight.com/project-sitemap.xml</loc>
		<lastmod>2023-09-22T08:53:54+00:00</lastmod>
	</sitemap>
	<sitemap>
		<loc>https://www.xmnewlight.com/new-sitemap.xml</loc>
		<lastmod>2026-07-24T03:56:04+00:00</lastmod>
	</sitemap>
	<sitemap>
		<loc>https://www.xmnewlight.com/category-sitemap.xml</loc>
		<lastmod>2026-06-04T06:14:20+00:00</lastmod>
	</sitemap>
	<sitemap>
		<loc>https://www.xmnewlight.com/local-sitemap.xml</loc>
		<lastmod>2026-03-11T01:36:07+00:00</lastmod>
	</sitemap>
</sitemapindex>
<!-- XML Sitemap generated by Rank Math SEO Plugin (c) Rank Math - rankmath.com -->