[Feature] Added ArrayDataCast to cast arrays of Laravel Data

src/SettingsCasts/ArrayDataCast.php

@@ -0,0 +1,71 @@
+<?php
+
+namespace Spatie\LaravelSettings\SettingsCasts;
+
+use Exception;
+use Spatie\LaravelData\Data;
+use Spatie\LaravelSettings\SettingsCasts\SettingsCast;
+
+class ArrayDataCast implements SettingsCast
+{
+    protected string $type;
+
+    protected bool $validate;
+
+    public function __construct(?string $type, string $validate = 'true')
+    {
+        $this->type     = $this->ensureDataTypeExists($type);
+        $this->validate = !in_array($validate, ['false', '0'], true);
+    }
+
+    /**
+     * @param array<array> $payload
+     *
+     * @return Data[]
+     */
+    public function get($payload): array
+    {
+        return array_map(
+            fn ($data) => $this->createData($data),
+            $payload
+        );
+    }
+
+    /**
+     * @param array<array|Data> $payload
+     *
+     * @return array<array>
+     */
+    public function set($payload): array
+    {
+        return array_map(
+            fn ($data) => $this->createData($data)->toArray(),
+            $payload
+        );
+    }
+
+    /**
+     * @param array|Data $data
+     */
+    protected function createData($data): Data
+    {
+        return $this->validate ? $this->type::validateAndCreate($data) : $this->type::from($data);
+    }
+
+    protected function ensureDataTypeExists(?string $type): string
+    {
+        if ($type === null) {
+            throw new Exception('Cannot create a data cast because no data class was given');
+        }
+
+        if (!class_exists($type)) {
+            throw new Exception("Cannot create a data cast for `$type` because the data does not exist");
+        }
+
+        if (!class_implements($type, Data::class)) {
+            throw new Exception("Cannot create a data cast for `$type` because the class does not implement data");
+        }
+
+        return $type;
+    }
+}