// Change OG title for Yoast on Vendor Pages

function wcv_wpseo_change_og_title( $title ) {

	if ( WCV_Vendors::is_vendor_page() ) {

		$vendor_shop = urldecode( get_query_var( 'vendor_shop' ) );

		$vendor_id = WCV_Vendors::get_vendor_id( $vendor_shop );

		$shop_title = get_user_meta( $vendor_id, 'pv_shop_name', true );

		$og_title = get_user_meta( $vendor_id, 'wcv_seo_fb_title', true );

		if ( ! empty( $og_title ) ) {

			$title = $og_title;

		} else {

			$title = $shop_title;

		}

	}

	return $title;

}

add_filter( 'wpseo_opengraph_title', 'wcv_wpseo_change_og_title' );

// Change Meta description for Yoast on Vendor Pages

function wcv_wpseo_change_meta_description( $desc ) {

	if ( WCV_Vendors::is_vendor_page() ) {

		$vendor_shop = urldecode( get_query_var( 'vendor_shop' ) );

		$vendor_id   = WCV_Vendors::get_vendor_id( $vendor_shop );

		$shopdesc    = get_user_meta( $vendor_id, 'pv_shop_description', true );

		$meta_desc   = get_user_meta( $vendor_id, 'wcv_seo_meta_description', true );

		if ( ! empty( $meta_desc ) ) {

			$desc = $meta_desc;

		} else {

			$desc = $shopdesc;

		}

	}

	return $desc;

}

add_filter( 'wpseo_metadesc', 'wcv_wpseo_change_meta_description' );

// Change OG description for Yoast on Vendor Pages

function wcv_wpseo_change_og_description( $desc ) {

	if ( WCV_Vendors::is_vendor_page() ) {

		$vendor_shop = urldecode( get_query_var( 'vendor_shop' ) );

		$vendor_id   = WCV_Vendors::get_vendor_id( $vendor_shop );

		$shopdesc    = get_user_meta( $vendor_id, 'pv_shop_description', true );

		$meta_desc   = get_user_meta( $vendor_id, 'wcv_seo_meta_description', true );

		$og_desc     = get_user_meta( $vendor_id, 'wcv_seo_fb_description', true );

		if ( ! empty( $og_desc ) ) {

			$desc = $og_desc;

		} elseif (! empty( $meta_desc)) {

			$desc = $meta_desc;

		} else {

			$desc = $shopdesc;

		}

	}

	return $desc;

}

add_filter( 'wpseo_opengraph_desc', 'wcv_wpseo_change_og_description' );

// Change OG image for Yoast on Vendor Pages

function wcv_wpseo_change_og_image ( $image ) {

	if ( WCV_Vendors::is_vendor_page() ) {

		$vendor_shop = urldecode( get_query_var( 'vendor_shop' ) );

		$vendor_id   = WCV_Vendors::get_vendor_id( $vendor_shop );

		$og_image    = get_user_meta( $vendor_id, 'wcv_seo_fb_image_id', true );

		if (!empty($og_image)) {

			$image = wp_get_attachment_url( $og_image );

		}

	}

	return $image;

}

add_filter( 'wpseo_opengraph_image', 'wcv_wpseo_change_og_image' );

// Change OG URL for Yoast on Vendor Pages.

function wcv_wpseo_change_og_url ( $url ) {

	if ( WCV_Vendors::is_vendor_page() ) {

		$vendor_shop = urldecode( get_query_var( 'vendor_shop' ) );

		$vendor_id   = WCV_Vendors::get_vendor_id( $vendor_shop );

		$url         = WCV_Vendors::get_vendor_shop_page( $vendor_id );

	}

	return $url;

}

add_filter( 'wpseo_opengraph_url', 'wcv_wpseo_change_og_url' );