feature/handle-promotions (#59)

Reviewed-on: #59
Co-authored-by: Krzysiej <krzysiej@gmail.com>
Co-committed-by: Krzysiej <krzysiej@gmail.com>

src/Models/Product.php

@@ -9,6 +9,7 @@ use Illuminate\Database\Eloquent\Relations\BelongsTo;
 use Illuminate\Database\Eloquent\Relations\HasMany;
 use Illuminate\Database\Eloquent\Relations\HasOne;
 
+use Illuminate\Support\Str;
 use function Symfony\Component\Clock\now;
 
 /**
@@ -28,6 +29,7 @@ use function Symfony\Component\Clock\now;
  * @property float $lowestProductPrice30Days
  * @property Date $lastSeen
  * @property integer $stock
+ * @property Object $promotions
  */
 class Product extends Model
 {
@@ -58,6 +60,7 @@ class Product extends Model
     {
         return $this->hasOne(Price::class)->ofMany('price', 'MIN');
     }
+
     public function newestPrice(): HasOne
     {
         return $this->hasOne(Price::class)->latest();
@@ -70,7 +73,7 @@ class Product extends Model
 
     public function currentStock(): HasOne
     {
-        return $this->stock()->one()->ofMany()->withDefault(fn (Stock $stock) => $stock->stock = 0);
+        return $this->stock()->one()->ofMany()->withDefault(fn(Stock $stock) => $stock->stock = 0);
     }
 
     public function toggleStarred(): self
@@ -88,10 +91,23 @@ class Product extends Model
         );
     }
 
+    public function promotions(): Attribute
+    {
+        return Attribute::make(
+            get: fn(?string $value) => json_decode($value ?? '{"hasPromotion": false}', 1),
+            set: function (\stdClass $value) {
+                $value->slug = Str::slug($value->tag);
+
+                return json_encode($value);
+            }
+        );
+    }
+
     public function isDiscontinued(): bool
     {
         return $this->lastSeen < now()->format('Y-m-d');
     }
+
     public function isNew(): bool
     {
         return $this->created_at->format('Y-m-d') > now()->modify('-30 days')->format('Y-m-d');