Add all files

app/Models/Extension.php

@@ -0,0 +1,44 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Casts\Attribute;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class Extension extends Model
+{
+    use HasFactory;
+
+    protected $fillable = [
+        'name',
+        'enabled',
+        // Name of extension class (e.g. 'Stripe' or 'Paypal')
+        'extension',
+        'type',
+    ];
+
+    protected $guarded = [];
+
+    /**
+     * Get the extension's settings.
+     */
+    public function settings()
+    {
+        return $this->morphMany(Setting::class, 'settingable');
+    }
+
+    public function path(): Attribute
+    {
+        return Attribute::make(
+            get: fn () => ucfirst($this->type) . 's/' . ucfirst($this->extension)
+        );
+    }
+
+    public function namespace(): Attribute
+    {
+        return Attribute::make(
+            get: fn () => 'Paymenter\\Extensions\\' . ucfirst($this->type) . 's\\' . ucfirst($this->extension)
+        );
+    }
+}