<?php

/**

 * Server-side rendering of the `core/post-date` block.

 *

 * @package WordPress

 */

/**

 * Renders the `core/post-date` block on the server.

 *

 * @since 5.8.0

 *

 * @param array    $attributes Block attributes.

 * @param string   $content    Block default content.

 * @param WP_Block $block      Block instance.

 * @return string Returns the filtered post date for the current post wrapped inside "time" tags.

 */

function render_block_core_post_date( $attributes, $content, $block ) {

	if ( ! isset( $block->context['postId'] ) ) {

		return '';

	}

	$post_ID = $block->context['postId'];

	if ( isset( $attributes['format'] ) && 'human-diff' === $attributes['format'] ) {

		$post_timestamp = get_post_timestamp( $post_ID );

		if ( $post_timestamp > time() ) {

			// translators: %s: human-readable time difference.

			$formatted_date = sprintf( __( '%s from now' ), human_time_diff( $post_timestamp ) );

		} else {

			// translators: %s: human-readable time difference.

			$formatted_date = sprintf( __( '%s ago' ), human_time_diff( $post_timestamp ) );

		}

	} else {

		$formatted_date = get_the_date( empty( $attributes['format'] ) ? '' : $attributes['format'], $post_ID );

	}

	$unformatted_date = esc_attr( get_the_date( 'c', $post_ID ) );

	$classes          = array();

	if ( isset( $attributes['textAlign'] ) ) {

		$classes[] = 'has-text-align-' . $attributes['textAlign'];

	}

	if ( isset( $attributes['style']['elements']['link']['color']['text'] ) ) {

		$classes[] = 'has-link-color';

	}

	/*

	 * If the "Display last modified date" setting is enabled,

	 * only display the modified date if it is later than the publishing date.

	 */

	if ( isset( $attributes['displayType'] ) && 'modified' === $attributes['displayType'] ) {

		if ( get_the_modified_date( 'Ymdhi', $post_ID ) > get_the_date( 'Ymdhi', $post_ID ) ) {

			if ( isset( $attributes['format'] ) && 'human-diff' === $attributes['format'] ) {

				// translators: %s: human-readable time difference.

				$formatted_date = sprintf( __( '%s ago' ), human_time_diff( get_post_timestamp( $post_ID, 'modified' ) ) );

			} else {

				$formatted_date = get_the_modified_date( empty( $attributes['format'] ) ? '' : $attributes['format'], $post_ID );

			}

			$unformatted_date = esc_attr( get_the_modified_date( 'c', $post_ID ) );

			$classes[]        = 'wp-block-post-date__modified-date';

		} else {

			return '';

		}

	}

	$wrapper_attributes = get_block_wrapper_attributes( array( 'class' => implode( ' ', $classes ) ) );

	if ( isset( $attributes['isLink'] ) && $attributes['isLink'] ) {

		$formatted_date = sprintf( '<a href="%1s">%2s</a>', get_the_permalink( $post_ID ), $formatted_date );

	}

	return sprintf(

		'<div %1$s><time datetime="%2$s">%3$s</time></div>',

		$wrapper_attributes,

		$unformatted_date,

		$formatted_date

	);

}

/**

 * Registers the `core/post-date` block on the server.

 *

 * @since 5.8.0

 */

function register_block_core_post_date() {

	register_block_type_from_metadata(

		__DIR__ . '/post-date',

		array(

			'render_callback' => 'render_block_core_post_date',

		)

	);

}

add_action( 'init', 'register_block_core_post_date' );