refactor(stock): centralize reservation aggregate

app/Domains/Catalog/Models/Inventory.php

@@ -48,10 +48,10 @@ class Inventory extends Model
         return $this->hasOne(Variant::class);
     }
 
-    /** @return HasMany<StockReservation, $this> */
-    public function stockReservations(): HasMany
+    /** @return HasMany<StockReservationLine, $this> */
+    public function stockReservationLines(): HasMany
     {
-        return $this->hasMany(StockReservation::class);
+        return $this->hasMany(StockReservationLine::class);
     }
 
     public function availableStock(): int

app/Domains/Catalog/Models/StockReservation.php

@@ -2,21 +2,20 @@
 
 namespace App\Domains\Catalog\Models;
 
-use App\Domains\Cart\Models\CartItem;
+use App\Domains\Cart\Models\Cart;
 use App\Domains\Purchase\Models\Purchase;
 use Illuminate\Database\Eloquent\Attributes\Fillable;
 use Illuminate\Database\Eloquent\Model;
-use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+use Illuminate\Database\Eloquent\Relations\HasOne;
 
 #[Fillable([
-    'inventory_id',
-    'cart_item_id',
-    'purchase_id',
-    'quantity',
     'status',
     'expires_at',
     'committed_at',
     'released_at',
+    'expired_at',
+    'release_reason',
 ])]
 class StockReservation extends Model
 {
@@ -31,31 +30,28 @@ class StockReservation extends Model
     protected function casts(): array
     {
         return [
-            'inventory_id' => 'integer',
-            'cart_item_id' => 'integer',
-            'purchase_id' => 'integer',
-            'quantity' => 'integer',
             'expires_at' => 'datetime',
             'committed_at' => 'datetime',
             'released_at' => 'datetime',
+            'expired_at' => 'datetime',
         ];
     }
 
-    /** @return BelongsTo<Inventory, $this> */
-    public function inventory(): BelongsTo
+    /** @return HasMany<StockReservationLine, $this> */
+    public function lines(): HasMany
     {
-        return $this->belongsTo(Inventory::class);
+        return $this->hasMany(StockReservationLine::class);
     }
 
-    /** @return BelongsTo<CartItem, $this> */
-    public function cartItem(): BelongsTo
+    /** @return HasOne<Cart, $this> */
+    public function currentCart(): HasOne
     {
-        return $this->belongsTo(CartItem::class);
+        return $this->hasOne(Cart::class, 'current_stock_reservation_id');
     }
 
-    /** @return BelongsTo<Purchase, $this> */
-    public function purchase(): BelongsTo
+    /** @return HasOne<Purchase, $this> */
+    public function purchase(): HasOne
     {
-        return $this->belongsTo(Purchase::class);
+        return $this->hasOne(Purchase::class);
     }
 }

app/Domains/Catalog/Models/StockReservationLine.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace App\Domains\Catalog\Models;
+
+use Illuminate\Database\Eloquent\Attributes\Fillable;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+#[Fillable([
+    'stock_reservation_id',
+    'inventory_id',
+    'quantity',
+    'tracks_inventory',
+])]
+class StockReservationLine extends Model
+{
+    protected function casts(): array
+    {
+        return [
+            'stock_reservation_id' => 'integer',
+            'inventory_id' => 'integer',
+            'quantity' => 'integer',
+            'tracks_inventory' => 'boolean',
+        ];
+    }
+
+    /** @return BelongsTo<StockReservation, $this> */
+    public function reservation(): BelongsTo
+    {
+        return $this->belongsTo(StockReservation::class, 'stock_reservation_id');
+    }
+
+    /** @return BelongsTo<Inventory, $this> */
+    public function inventory(): BelongsTo
+    {
+        return $this->belongsTo(Inventory::class);
+    }
+}