refactor(backend): reorganize domains into Core, Commerce, Ticketing and Shared

app/Domains/Commerce/Cart/Models/CartItem.php

@@ -0,0 +1,58 @@
+<?php
+
+namespace App\Domains\Cart\Models;
+
+use App\Domains\Catalog\Models\CatalogItem;
+use App\Domains\Catalog\Models\Variant;
+use Illuminate\Database\Eloquent\Attributes\Fillable;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+#[Fillable([
+    'cart_id',
+    'catalog_item_id',
+    'variant_id',
+    'cantidad',
+])]
+class CartItem extends Model
+{
+    use HasFactory;
+
+    protected $table = 'carrito_items';
+
+    protected function casts(): array
+    {
+        return [
+            'cart_id' => 'integer',
+            'catalog_item_id' => 'integer',
+            'variant_id' => 'integer',
+            'cantidad' => 'integer',
+        ];
+    }
+
+    /**
+     * @return BelongsTo<Cart, $this>
+     */
+    public function cart(): BelongsTo
+    {
+        return $this->belongsTo(Cart::class, 'cart_id');
+    }
+
+    /** @return BelongsTo<CatalogItem, $this> */
+    public function catalogItem(): BelongsTo
+    {
+        return $this->belongsTo(CatalogItem::class);
+    }
+
+    /** @return BelongsTo<Variant, $this> */
+    public function variant(): BelongsTo
+    {
+        return $this->belongsTo(Variant::class);
+    }
+
+    public function selectedItem(): CatalogItem|Variant|null
+    {
+        return $this->variant ?? $this->catalogItem;
+    }
+}