<?php

/**
 * Renders the `gtm/post-author-date` block on the server.
 *
 * @param array    $attributes Block attributes.
 * @param string   $content    Block default content.
 * @param WP_Block $block      Block instance.
 * @return string Returns the post author and date for the current post.
 */
function gtm_render_block_post_author_date( $attr, $content, $block ) {
	if ( ! isset( $block->context['postId'] ) ) {
		return '';
	}

	$post_ID            = $block->context['postId'];
	$author_id          = get_post_field( 'post_author', $block->context['postId'] );
	$author_name        = get_the_author_meta( 'display_name', $author_id );
	$author_url         = get_author_posts_url( $author_id );
	$avatar_html        = get_avatar( $author_id, intval( $attr['avatarSize'] ) );
	$tooltip            = gtm_tooltip( sprintf( esc_html__( "View posts from %s", 'gutenmate' ), $author_name ) );
	$wrapper_attributes = get_block_wrapper_attributes( ['class' => ''] );

	$the_date = ( $attr['dateType'] ?? '' ) == 'modified' ? get_the_modified_date( 'U' ) : get_the_date( 'U' );
	$date     = '';
	if ( $attr['dateFormat'] == 'time_ago' ) {
		$date = sprintf( esc_html__( '%s ago', 'gutenmate' ), human_time_diff( $the_date, current_time( 'U' ) ) );
	} else {
		$date = wp_date( ! empty( $attr['dateFormat'] ) ? $attr['dateFormat'] : get_option( 'date_format' ), $the_date );
	}
	$formatted_date = sprintf( '<time datetime="%2$s">%1$s</time>', $date, wp_date( 'c', $the_date ) );

	$inner_html = '';
	if ( empty( $attr['enableAuthorLink'] ) ) {
		$inner_html .= $avatar_html;
	} else {
		$inner_html .= sprintf( '<a class="avatar" href="%1$s" rel="author" %3$s>%2$s</a>', esc_url( $author_url ), $avatar_html, $tooltip );
	}

	$inner_html .= '<div class="gtm-post-author-date__details">';
	if ( empty( $attr['enableAuthorLink'] ) ) {
		$inner_html .= '<span class="gtm-post-author-date__author">' . $author_name . '</span>';
	} else {
		$inner_html .= sprintf( '<a class="gtm-post-author-date__author" href="%1$s" rel="author" %3$s>%2$s</a>', esc_url( $author_url ), $author_name, $tooltip );
	}

	if ( empty( $attr['enableDateLink'] ) ) {
		$inner_html .= '<span class="gtm-post-author-date__date">' . $formatted_date . '</span>';

	} else {
		$tooltip = gtm_tooltip( esc_html__( 'View post content', 'gutenmate' ) );
		$inner_html .= sprintf( '<a class="gtm-post-author-date__date" href="%1$s" %3$s>%2$s</a>', esc_url( get_the_permalink() ), $formatted_date, $tooltip );
	}

	$inner_html .= '</div>';

	return sprintf(
		'<div %1$s>%2$s</div>',
		$wrapper_attributes,
		$inner_html
	);
}

/**
 * Registers the `gtm/post-author-date` block on the server.
 */
function gtm_register_block_post_author_date() {
	gtm_register_block_type( 'post-author-date', [
		'render_callback' => 'gtm_render_block_post_author_date',
	] );
}

add_action( 'init', 'gtm_register_block_post_author_date', 20 );

add_filter( 'gtm.BlockStyleCompiler.gtm/post-author-date', 'gtm_compile_block_css_post_author_date', 10, 3 );
function gtm_compile_block_css_post_author_date( $output, $attributes, $blockName ) {
	$block_style = ['classes' => [], 'style' => []];

	$block_style['classes'][] = 'gtm-block';

	if ( $attributes['enableAuthorLink'] ) {
		if ( $attributes['enableAuthorLinkUnderline'] ) {
			$block_style['classes'][] = 'gtm-has-post-author-date-author-underline';
		}

		if ( $attributes['enableAuthorLinkHoverUnderline'] ) {
			$block_style['classes'][] = 'gtm-has-post-author-date-author-hover-underline';
		}
	}

	if ( $attributes['enableDateLink'] ) {
		if ( $attributes['enableDateLinkUnderline'] ) {
			$block_style['classes'][] = 'gtm-has-post-author-date-date-underline';
		}

		if ( $attributes['enableDateLinkHoverUnderline'] ) {
			$block_style['classes'][] = 'gtm-has-post-author-date-date-hover-underline';
		}
	}

	gtm_css_compileCssVar( $block_style, "post-author-date-author-typography", gtm_css_parseTypographyProps( $attributes['authorTypography'] ) );

	gtm_css_compileCssVar( $block_style, "post-author-date-author-color", gtm_css_parseColorValue( $attributes['authorLinkColor'] ) );

	if ( $attributes['enableAuthorLink'] ) {
		gtm_css_compileCssVar( $block_style, "post-author-date-author-hover-color", gtm_css_parseColorValue( $attributes['authorLinkHoverColor'] ) );
	}

	/* Avatar */

	gtm_css_compileCssVar( $block_style, "post-author-date-avatar-radius", gtm_css_parseBorderRadiusValue( $attributes['avatarRadius'] ) );

	gtm_css_compileCssVar( $block_style, "post-author-date-avatar-shadow", gtm_css_parseShadowValue( $attributes['avatarShadow'] ) );

	gtm_css_compileCssVar( $block_style, "post-author-date-avatar-spacing", gtm_css_parseSpacingValue( $attributes['avatarSpacing'] ) );

	/* Date */

	gtm_css_compileCssVar( $block_style, "post-author-date-date-spacing", gtm_css_parseSpacingValue( $attributes['dateSpacing'] ) );

	gtm_css_compileCssVar( $block_style, "post-author-date-date-typography", gtm_css_parseTypographyProps( $attributes['dateTypography'] ) );

	gtm_css_compileCssVar( $block_style, "post-author-date-date-color", gtm_css_parseColorValue( $attributes['dateLinkColor'] ) );

	if ( $attributes['enableDateLink'] ) {
		gtm_css_compileCssVar( $block_style, "post-author-date-date-hover-color", gtm_css_parseColorValue( $attributes['dateLinkHoverColor'] ) );
	}

	// Apply to output
	$block_style['style'] = ['{{BLOCK}}' => $block_style['style']];

	return [
		'classes' => array_merge( $output['classes'], $block_style['classes'] ),
		'style'   => array_replace_recursive( $output['style'], $block_style['style'] ),
	];
}