search and filtering

app/Models/Product.php

@@ -139,6 +139,76 @@ class Product extends Model
         return $query->where('status', $status);
     }
 
+    /**
+     * Scope a query to search products by title and description.
+     */
+    public function scopeSearch(Builder $query, ?string $search): Builder
+    {
+        if (empty($search)) {
+            return $query;
+        }
+
+        return $query->where(function ($subQuery) use ($search) {
+            $subQuery->where('title', 'like', '%' . $search . '%')
+                ->orWhere('description', 'like', '%' . $search . '%');
+        });
+    }
+
+    /**
+     * Scope a query to filter by category.
+     */
+    public function scopeByCategory(Builder $query, ?int $categoryId): Builder
+    {
+        if (empty($categoryId)) {
+            return $query;
+        }
+
+        return $query->where('category_id', $categoryId);
+    }
+
+    /**
+     * Scope a query to filter by date range.
+     */
+    public function scopeDateRange(Builder $query, ?string $range): Builder
+    {
+        if (empty($range)) {
+            return $query;
+        }
+
+        return match($range) {
+            'today' => $query->whereDate('created_at', today()),
+            'week' => $query->where('created_at', '>=', now()->subWeek()),
+            'month' => $query->where('created_at', '>=', now()->subMonth()),
+            'year' => $query->where('created_at', '>=', now()->subYear()),
+            default => $query,
+        };
+    }
+
+    /**
+     * Scope a query to sort products by popularity (upvotes count).
+     */
+    public function scopePopular(Builder $query): Builder
+    {
+        return $query->withCount('upvotes')->orderBy('upvotes_count', 'desc');
+    }
+
+    /**
+     * Scope a query to sort products.
+     */
+    public function scopeSortBy(Builder $query, ?string $sort): Builder
+    {
+        if (empty($sort)) {
+            return $query->latest();
+        }
+
+        return match($sort) {
+            'popular' => $query->withCount('upvotes')->orderBy('upvotes_count', 'desc'),
+            'oldest' => $query->oldest(),
+            'newest' => $query->latest(),
+            default => $query->latest(),
+        };
+    }
+
     /**
      * Get the product's thumbnail URL.
      */