feat(handlers): Get data from db Methods

Added all methods from fronted documentation whitch needs

db/handlers/catigory_handler.py

@@ -1,23 +1,113 @@
 import sqlite3
-from module.category import Category
+from typing import List, Dict, Any, Optional
+from loguru import logger as log
 
-def GetAllCategories(db_name: str = 'pipe_store.db', parent_id: int = 1) -> list[Category]:
+def get_all_categories_with_attributes(db_name: str = 'pipe_store.db') -> List[Dict[str, Any]]:
     conn = sqlite3.connect(db_name)
     conn.row_factory = sqlite3.Row
     cursor = conn.cursor()
+    
+    try:
+        # Получаем все категории (только основные, без parent_id)
+        cursor.execute("""
+            SELECT id, name, image_path 
+            FROM categories 
+            WHERE parent_id IS NULL OR parent_id = 1
+            ORDER BY id
+        """)
+        
+        categories = []
+        
+        for cat_row in cursor.fetchall():
+            category_id = cat_row['id']
+            
+            # Получаем все фильтры для товаров в этой категории
+            cursor.execute("""
+                SELECT DISTINCT f.id, f.name, f.filter_key
+                FROM filters f
+                WHERE f.filter_key IN (
+                    SELECT DISTINCT pf.filter_key 
+                    FROM product_filters pf
+                    JOIN products p ON pf.product_id = p.id
+                    WHERE p.category_id = ?
+                )
+                ORDER BY f.id
+            """, (category_id,))
+            
+            attributes = []
+            
+            for filter_row in cursor.fetchall():
+                filter_id = filter_row['id']
+                filter_key = filter_row['filter_key']
+                filter_name = filter_row['name']
+                
+                # Получаем уникальные значения для этого фильтра
+                cursor.execute("""
+                    SELECT DISTINCT pf.value, COUNT(*) as count
+                    FROM product_filters pf
+                    JOIN products p ON pf.product_id = p.id
+                    WHERE p.category_id = ? AND pf.filter_key = ?
+                    GROUP BY pf.value
+                    ORDER BY pf.value
+                """, (category_id, filter_key))
+                
+                vals = []
+                for val_row in cursor.fetchall():
+                    # Генерируем уникальный ID для значения
+                    val_id = hash(f"{category_id}_{filter_key}_{val_row['value']}") % 1000000
+                    vals.append({
+                        "id": val_id,
+                        "val": val_row['value']
+                    })
+                
+                if vals:  # Добавляем только если есть значения
+                    attributes.append({
+                        "id": filter_id,
+                        "name": filter_name,
+                        "vals": vals
+                    })
+            
+            categories.append({
+                "id": category_id,
+                "name": cat_row['name'],
+                "image": cat_row['image_path'] or f"/images/categories/{cat_row['name'].lower().replace(' ', '_')}.jpg",
+                "atributes": attributes
+            })
+        
+        return categories
+        
+    except sqlite3.Error as e:
+        log.error(f"Ошибка при получении категорий: {e}")
+        return []
+    finally:
+        conn.close()
 
-    categories = []
-
-    cursor.execute("SELECT id, name, description, image_path FROM categories WHERE parent_id = ?", [parent_id])
-
-    for row in cursor.fetchall():
-        category = Category(
-            id = row["id"],
-            name = row["name"],
-            description= row["description"],
-            image_path= row["image_path"],
-        )
-        categories.append(category.model_dump())
-
-    conn.close()
-    return categories
+def get_category_by_id(category_id: int, db_name: str = 'pipe_store.db') -> Optional[Dict[str, Any]]:
+    """Получить категорию по ID"""
+    conn = sqlite3.connect(db_name)
+    conn.row_factory = sqlite3.Row
+    cursor = conn.cursor()
+    
+    try:
+        cursor.execute("""
+            SELECT id, name, description, image_path, parent_id
+            FROM categories 
+            WHERE id = ?
+        """, (category_id,))
+        
+        row = cursor.fetchone()
+        if row:
+            return {
+                "id": row['id'],
+                "name": row['name'],
+                "description": row['description'],
+                "image": row['image_path'],
+                "parent_id": row['parent_id']
+            }
+        return None
+        
+    except sqlite3.Error as e:
+        log.error(f"Ошибка при получении категории {category_id}: {e}")
+        return None
+    finally:
+        conn.close()