From b667c9283ad71b8cc7007ffa85686101b5f3e659 Mon Sep 17 00:00:00 2001
From: Richard Pettifer <129283710+rpettifer@users.noreply.github.com>
Date: Mon, 17 Jun 2024 15:14:23 +0100
Subject: [PATCH 1/3] Update Xero.php

---
 src/Xero.php | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/Xero.php b/src/Xero.php
index c10d889..57d428c 100755
--- a/src/Xero.php
+++ b/src/Xero.php
@@ -4,6 +4,7 @@
 
 use Dcblogdev\Xero\Models\XeroToken;
 use Dcblogdev\Xero\Resources\Contacts;
+use Dcblogdev\Xero\Resources\CreditNotes;
 use Dcblogdev\Xero\Resources\Invoices;
 use Dcblogdev\Xero\Resources\Webhooks;
 use Exception;
@@ -42,6 +43,11 @@ public function contacts(): Contacts
         return new Contacts();
     }
 
+    public function creditnotes(): CreditNotes
+    {
+        return new CreditNotes();
+    }
+
     public function invoices(): Invoices
     {
         return new Invoices();

From ab75bd3652b78eb4649acc8287fde50b6b9e5101 Mon Sep 17 00:00:00 2001
From: Richard Pettifer <129283710+rpettifer@users.noreply.github.com>
Date: Mon, 17 Jun 2024 15:14:40 +0100
Subject: [PATCH 2/3] Add files via upload

---
 src/Resources/CreditNotes.php | 53 +++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 src/Resources/CreditNotes.php

diff --git a/src/Resources/CreditNotes.php b/src/Resources/CreditNotes.php
new file mode 100644
index 0000000..68c3ec1
--- /dev/null
+++ b/src/Resources/CreditNotes.php
@@ -0,0 +1,53 @@
+<?php
+
+namespace Dcblogdev\Xero\Resources;
+
+use Dcblogdev\Xero\Enums\FilterOptions;
+use Dcblogdev\Xero\Xero;
+use InvalidArgumentException;
+
+class CreditNotes extends Xero
+{
+    protected array $queryString = [];
+
+    public function filter($key, $value): static
+    {
+        if (! FilterOptions::isValid($key)) {
+            throw new InvalidArgumentException("Filter option '$key' is not valid.");
+        }
+
+        $this->queryString[$key] = $value;
+
+        return $this;
+    }
+
+    public function get(): array
+    {
+        $queryString = $this->formatQueryStrings($this->queryString);
+
+        $result = parent::get('CreditNotes?'.$queryString);
+
+        return $result['body']['CreditNotes'];
+    }
+
+    public function find(string $contactId): array
+    {
+        $result = parent::get('CreditNotes/'.$contactId);
+
+        return $result['body']['CreditNotes'][0];
+    }
+
+    public function update(string $contactId, array $data): array
+    {
+        $result = $this->post('CreditNotes/'.$contactId, $data);
+
+        return $result['body']['CreditNotes'][0];
+    }
+
+    public function store(array $data): array
+    {
+        $result = $this->post('CreditNotes', $data);
+
+        return $result['body']['CreditNotes'][0];
+    }
+}

From eb17681ed83c7f88abc0803035ce1354c0383d83 Mon Sep 17 00:00:00 2001
From: Richard Pettifer <richard@pettifer.co.uk>
Date: Mon, 17 Jun 2024 15:22:24 +0100
Subject: [PATCH 3/3] Added CreditNotesTest

---
 tests/Resources/CreditNotesTest.php | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 tests/Resources/CreditNotesTest.php

diff --git a/tests/Resources/CreditNotesTest.php b/tests/Resources/CreditNotesTest.php
new file mode 100644
index 0000000..c616981
--- /dev/null
+++ b/tests/Resources/CreditNotesTest.php
@@ -0,0 +1,17 @@
+<?php
+
+use Dcblogdev\Xero\Facades\Xero;
+use Dcblogdev\Xero\Resources\CreditNotes;
+
+test('invalid filter option throws exception', function(){
+   Xero::creditnotes()
+       ->filter('bogus', 1)
+       ->get();
+})->throws(InvalidArgumentException::class, "Filter option 'bogus' is not valid.");
+
+test('filter returns object', function(){
+
+    $filter = (new CreditNotes())->filter('ids', '1234');
+
+    expect($filter)->toBeObject();
+});
\ No newline at end of file