<?php

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/**

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* Top Posts Block.

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*

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* @since 13.0

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*

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* @package automattic/jetpack

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*/

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namespace Automattic\Jetpack\Extensions\Top_Posts;

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use Automattic\Jetpack\Blocks;

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use Automattic\Jetpack\Connection\Manager as Connection_Manager;

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use Automattic\Jetpack\Modules;

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use Automattic\Jetpack\Status;

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use Automattic\Jetpack\Status\Host;

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use Automattic\Jetpack\Status\Request;

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use Jetpack_Gutenberg;

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use Jetpack_Top_Posts_Helper;

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if ( ! defined( 'ABSPATH' ) ) {

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exit( 0 );

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}

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if ( ! class_exists( 'Jetpack_Top_Posts_Helper' ) ) {

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require_once JETPACK__PLUGIN_DIR . '/_inc/lib/class-jetpack-top-posts-helper.php';

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}

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/**

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* Registers the block for use in Gutenberg

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* This is done via an action so that we can disable

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* registration if we need to.

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*/

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function register_block() {

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/*

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* The block is available even when the module is not active,

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* so we can display a nudge to activate the module instead of the block.

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* However, since non-admins cannot activate modules, we do not display the empty block for them.

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*/

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if ( ! ( new Modules() )->is_active( 'stats' ) && ! current_user_can( 'jetpack_activate_modules' ) ) {

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return;

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}

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if ( ( new Host() )->is_wpcom_simple() || ( new Connection_Manager( 'jetpack' ) )->has_connected_owner() && ! ( new Status() )->is_offline_mode() ) {

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Blocks::jetpack_register_block(

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__DIR__,

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array( 'render_callback' => __NAMESPACE__ . '\load_assets' )

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);

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}

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}

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add_action( 'init', __NAMESPACE__ . '\register_block' );

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/**

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* Top Posts block registration/dependency declaration.

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*

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* @param array $attributes Array containing the Top Posts block attributes.

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*

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* @return string

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*/

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function load_assets( $attributes ) {

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// Do not render anything when the Stats module is not active.

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if ( ! ( new Modules() )->is_active( 'stats' ) ) {

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return;

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}

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// Do not render in contexts outside the front-end (eg. emails, API).

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if ( ! Request::is_frontend() ) {

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return;

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}

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Jetpack_Gutenberg::load_assets_as_required( __DIR__ );

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/*

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* We cannot rely on obtaining posts from the block because

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* top posts might have changed since then. As such, we must

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* check for updated stats.

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*/

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$period = $attributes['period'];

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$number = $attributes['postsToShow'];

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$types = implode( ',', array_keys( array_filter( $attributes['postTypes'] ) ) );

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$data = Jetpack_Top_Posts_Helper::get_top_posts( $period, $number, $types );

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if ( ! is_array( $data ) ) {

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return;

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}

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$wrapper_attributes = \WP_Block_Supports::get_instance()->apply_block_supports();

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$output = sprintf(

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'<div class="jetpack-top-posts%s%s%s"%sdata-item-count="%s"><div class="jetpack-top-posts-wrapper">',

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! empty( $attributes['className'] ) ? ' ' . esc_attr( $attributes['className'] ) : '',

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! empty( $wrapper_attributes['class'] ) ? ' ' . esc_attr( $wrapper_attributes['class'] ) : '',

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' is-' . esc_attr( $attributes['layout'] ) . '-layout',

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! empty( $wrapper_attributes['style'] ) ? ' style="' . esc_attr( $wrapper_attributes['style'] ) . '"' : '',

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count( $data )

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);

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foreach ( $data as $item ) {

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$output .= '<div class="jetpack-top-posts-item">';

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if ( $attributes['displayThumbnail'] ) {

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$output .= '<a class="jetpack-top-posts-thumbnail-link" href="' . esc_url( $item['href'] ) . '">';

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if ( ! empty( $item['thumbnail'] ) ) {

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$output .= '<img class="jetpack-top-posts-thumbnail" src="' . esc_url( $item['thumbnail'] ) . '" alt="' . esc_attr( $item['title'] ) . '">';

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} else {

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$output .= '<div class="jetpack-top-posts-mock-thumbnail"></div>';

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}

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$output .= '</a>';

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}

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$output .= '<span class="jetpack-top-posts-title"><a href="' . esc_url( $item['href'] ) . '">' . esc_html( $item['title'] ) . '</a></span>';

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if ( $attributes['displayDate'] ) {

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$output .= '<span class="jetpack-top-posts-date has-small-font-size">' . esc_html( $item['date'] ) . '</span>';

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}

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if ( $attributes['displayAuthor'] ) {

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$output .= '<span class="jetpack-top-posts-author has-small-font-size">' . esc_html( $item['author'] ) . '</span>';

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}

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if ( $attributes['displayContext'] && ! empty( $item['context'] ) && is_array( $item['context'] ) ) {

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$context = reset( $item['context'] );

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$output .= '<span class="jetpack-top-posts-context has-small-font-size"><a href="' . esc_url( get_category_link( $context->term_id ) ) . '">' . esc_html( $context->name ) . '</a></span>';

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}

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$output .= '</div>';

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}

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$output .= '</div></div>';

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return $output;

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}

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