From d782623accc29403ef37a7b2beba014ca00202d7 Mon Sep 17 00:00:00 2001
From: Juris <78373300+jbumaniss@users.noreply.github.com>
Date: Fri, 9 Feb 2024 16:44:04 +0200
Subject: [PATCH] Enhance Link Creation with Filtered Resource Index Support
 (#36)

Co-authored-by: juris.bumanis <juris.bumanis@catchsmart.com>
Co-authored-by: Rafael Milewski <rafael.milewski@gmail.com>
---
 src/Link.php         | 30 ++++++++++++++++++++++++++++++
 src/NovaResource.php |  2 +-
 2 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/src/Link.php b/src/Link.php
index 43d4790..392dc54 100644
--- a/src/Link.php
+++ b/src/Link.php
@@ -8,6 +8,8 @@
 use Closure;
 use JsonSerializable;
 use Laravel\Nova\AuthorizedToSee;
+use Laravel\Nova\Filters\Filter;
+use Laravel\Nova\Filters\FilterEncoder;
 use Laravel\Nova\Lenses\Lens;
 use Laravel\Nova\Makeable;
 
@@ -24,6 +26,8 @@ class Link implements JsonSerializable
 
     protected string $url;
 
+    private array $filters = [];
+
     public function __construct(
         private readonly string $label,
     )
@@ -97,8 +101,34 @@ public function openInNewTab(bool|Closure $openInNewTab = true): self
         return $this;
     }
 
+    /**
+     * @param class-string<Filter>|Filter $filter
+     */
+    public function addFilter(string|Filter $filter, mixed $value): self
+    {
+        $filter = is_string($filter) ? resolve($filter) : $filter;
+
+        $this->filters[] = [ $filter->key() => $value ];
+
+        return $this;
+    }
+
     public function jsonSerialize(): array
     {
+        if (filled($this->filters)) {
+
+            $filters = new FilterEncoder($this->filters);
+
+            if ($this instanceof NovaResource) {
+
+                $this->url(
+                    sprintf('%s?%s_filter=%s', $this->url, $this->resourceUriKey, $filters->encode()),
+                );
+
+            }
+
+        }
+
         return [
             'label' => $this->label,
             'url' => $this->url,
diff --git a/src/NovaResource.php b/src/NovaResource.php
index 761920a..0129fb1 100644
--- a/src/NovaResource.php
+++ b/src/NovaResource.php
@@ -11,7 +11,7 @@
 
 class NovaResource extends Link
 {
-    private string $resourceUriKey;
+    protected string $resourceUriKey;
 
     /**
      * @param class-string<BaseNovaResource> $resource