From d0b78be46b506a62de0d6f2e9078f9e7003acbd1 Mon Sep 17 00:00:00 2001
From: Egidio Corica <ecorica@beapi.fr>
Date: Mon, 18 Sep 2023 15:13:23 +0200
Subject: [PATCH] Add FacetWP services

---
 inc/Framework.php         |   2 +
 inc/Services/Facet_WP.php | 165 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 167 insertions(+)
 create mode 100644 inc/Services/Facet_WP.php

diff --git a/inc/Framework.php b/inc/Framework.php
index 95267cc0..810d3c06 100644
--- a/inc/Framework.php
+++ b/inc/Framework.php
@@ -4,6 +4,7 @@
 
 use BEA\Theme\Framework\Services\Acf;
 use BEA\Theme\Framework\Services\Assets;
+use BEA\Theme\Framework\Services\Facet_WP;
 use BEA\Theme\Framework\Services\Performance;
 use BEA\Theme\Framework\Services\Assets_JS_Async;
 use BEA\Theme\Framework\Services\Editor;
@@ -40,6 +41,7 @@ class Framework {
 		Svg::class,
 		Acf::class,
 		Menu::class,
+		Facet_WP::class,
 
 		// Services as Tools
 		Body_Class::class,
diff --git a/inc/Services/Facet_WP.php b/inc/Services/Facet_WP.php
new file mode 100644
index 00000000..c7eeb287
--- /dev/null
+++ b/inc/Services/Facet_WP.php
@@ -0,0 +1,165 @@
+<?php
+
+namespace BEA\Theme\Framework\Services;
+
+use BEA\Theme\Framework\Service;
+use BEA\Theme\Framework\Service_Container;
+
+class Facet_WP implements Service {
+	public function register( Service_Container $container ): void {
+	}
+
+	public function boot( Service_Container $container ): void {
+		add_filter( 'facetwp_load_assets', '__return_true' );
+		add_filter( 'facetwp_load_a11y', '__return_true' );
+		add_filter( 'facetwp_facets', [ $this, 'register_facets' ], 40 );
+		add_filter( 'facetwp_pager_html', [ $this, 'accessible_facetwp_pager_html' ], 10, 2 );
+		add_filter( 'facetwp_facet_html', [ $this, 'accessible_facetwp_labels' ], 10, 2 );
+	}
+
+	/**
+	 * Get service name
+	 *
+	 * @return string
+	 */
+	public function get_service_name(): string {
+		return 'facetwp';
+	}
+
+	/**
+	 * Register facets from config file.
+	 *
+	 * @param array $facets
+	 *
+	 * @return array
+	 * @author Egidio CORICA
+	 */
+	public function register_facets( array $facets ): array {
+
+		$filename = get_theme_file_path( 'assets/facetwp/config.json' );
+		if ( ! is_readable( $filename ) ) {
+			return $facets;
+		}
+
+		$facet_content = file_get_contents( $filename ); // phpcs:ignore
+		if ( empty( $facet_content ) ) {
+			return $facets;
+		}
+
+		$facet_content = \json_decode( $facet_content, true );
+		if (
+			JSON_ERROR_NONE !== \json_last_error()
+			|| ! is_array( $facet_content )
+			|| empty( $facet_content['facets'] )
+		) {
+			return $facets;
+		}
+
+		return wp_parse_args( $facet_content['facets'], $facets );
+	}
+
+	/**
+	 * Add custom and accessible FacetWP pagination.
+	 *
+	 * @param $output
+	 * @param $params
+	 *
+	 * @return string
+	 *
+	 * @author Egidio CORICA
+	 *
+	 */
+	public function accessible_facetwp_pager_html( $output, $params ): string {
+		$defaults    = [
+			'page'       => 1,
+			'per_page'   => 10,
+			'total_rows' => 1,
+		];
+		$params      = array_merge( $defaults, $params );
+		$output      = '';
+		$page        = (int) $params['page'];
+		$total_pages = (int) $params['total_pages'];
+
+		// Only show pagination when > 1 page
+		if ( 1 < $total_pages ) {
+
+			$text_page = esc_html__( 'Page', 'fwp-front' );
+			$text_of   = esc_html__( 'of', 'fwp-front' );
+			$step      = 10;
+
+			$output .= '<span class="facetwp-pager-label sr-only">' . "$text_page $page $text_of $total_pages</span>";
+
+			if ( $page > 1 ) {
+				$output .= '<a href="#" class="facetwp-page previouspostslink" data-page="' . ( $page - 1 ) . '">Précédent</a>';
+			} else {
+				$output .= '<span class="facetwp-page previouspostslink" aria-hidden="true" tabindex="-1" style="visibility: hidden"></span>';
+			}
+
+			if ( 3 < $page ) {
+				$output .= '<a href="#" class="facetwp-page first-page" data-page="1">
+        <span class="sr-only">Première page</span>
+        <span aria-hidden="true">1</span>
+        </a>';
+			}
+			if ( 1 < ( $page - $step ) ) {
+				$output .= '<span class="facetwp-page-more" aria-hidden="true">...</span>';
+			}
+
+			for ( $i = 2; $i > 0; $i -- ) {
+				if ( 0 < ( $page - $i ) ) {
+					$output .= '<a href="#" class="facetwp-page" data-page="' . ( $page - $i ) . '"><span class="sr-only">Page</span> ' . ( $page - $i ) . '</a>';
+				}
+			}
+
+			// Current page
+			$output .= '<a href="#" class="facetwp-page active" aria-current="true" data-page="' . $page . '"><span class="sr-only">Page courante</span> ' . $page . '</a>';
+
+			for ( $i = 1; $i <= 2; $i ++ ) {
+				if ( $total_pages >= ( $page + $i ) ) {
+					$output .= '<a href="#" class="facetwp-page" data-page="' . ( $page + $i ) . '"><span class="sr-only">Page</span> ' . ( $page + $i ) . '</a>';
+				}
+			}
+
+			if ( $total_pages > ( $page + $step ) ) {
+				$output .= '<span class="facetwp-page-more" aria-hidden="true">...</span>';
+			}
+
+			if ( $total_pages > ( $page + 2 ) ) {
+				$output .= '<a href="#" class="facetwp-page last-page" data-page="' . $total_pages . '">
+        <span class="sr-only">Dernière page</span>
+        <span aria-hidden="true">' . $total_pages . '</span>
+        </a>';
+			}
+
+			if ( $page < $total_pages && $total_pages > 1 ) {
+				$output .= '<a href="#" class="facetwp-page nextpostslink" data-page="' . ( $page + 1 ) . '">Suivant</a>';
+			} else {
+				$output .= '<span class="facetwp-page nextpostslink" aria-hidden="true" style="visibility: hidden;" tabindex="-1"></span>';
+			}
+		}
+
+		return $output;
+	}
+
+	/**
+	 * Fix Labels for supported facets.
+	 * Put in show_label_not_empty the facets that only need to be visible in they have results.
+	 *
+	 * @param string $html
+	 * @param array $args
+	 *
+	 * @return string
+	 */
+	public function accessible_facetwp_labels( string $html, array $args ): string {
+		$show_label_not_empty = [
+			'checkboxes',
+			'radio',
+		];
+
+		if ( ( true === in_array( $args['facet']['type'], $show_label_not_empty, true ) && ! empty( $args['values'] ) ) || false === in_array( $args['facet']['type'], $show_label_not_empty, true ) ) {
+			$html = sprintf( '<label class="facetwp-label" for="%s">%s</label>%s', esc_attr( $args['facet']['name'] ), esc_html( $args['facet']['label'] ), $html );
+		}
+
+		return $html;
+	}
+}