From fe1dea1eb35d938fbf7ab72bb4662346ae427505 Mon Sep 17 00:00:00 2001
From: 24_ChernovaSS <24_ChernovaSS@iux.local>
Date: Tue, 31 Mar 2026 23:49:12 +0300
Subject: [PATCH] =?UTF-8?q?=20=D0=B4=D0=BE=D0=B1=D0=B0=D0=B2=D0=B8=D0=BB?=
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---
 mypkg/database/db_manager.py | 72 ++++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 mypkg/database/db_manager.py

diff --git a/mypkg/database/db_manager.py b/mypkg/database/db_manager.py
new file mode 100644
index 0000000..ce256f2
--- /dev/null
+++ b/mypkg/database/db_manager.py
@@ -0,0 +1,72 @@
+# mypkg/database/db_manager.py
+import json
+import os
+from typing import Dict, Optional
+from datetime import datetime
+from ..models.package import Package
+
+
+class DatabaseManager:
+    """Управляет базой данных установленных пакетов"""
+    
+    DB_PATH = "/var/lib/mypkg/installed.json"
+    
+    def __init__(self, root: str = "/"):
+        """
+        Args:
+            root: корень файловой системы (для песочницы)
+        """
+        self.root = root
+        self.db_path = os.path.join(root, self.DB_PATH.lstrip('/'))
+        self.installed: Dict[str, Package] = {}
+        self._load()
+    
+    def _load(self):
+        """Загружает базу из файла"""
+        if not os.path.exists(self.db_path):
+            return
+        
+        try:
+            with open(self.db_path, 'r') as f:
+                data = json.load(f)
+            
+            for name, pkg_data in data.items():
+                pkg = Package(**pkg_data)
+                pkg.installed = True
+                if pkg_data.get('install_date'):
+                    pkg.install_date = datetime.fromisoformat(pkg_data['install_date'])
+                self.installed[name] = pkg
+        except Exception as e:
+            print(f"Ошибка загрузки базы: {e}")
+    
+    def save(self):
+        """Сохраняет базу в файл"""
+        os.makedirs(os.path.dirname(self.db_path), exist_ok=True)
+        
+        data = {}
+        for name, pkg in self.installed.items():
+            data[name] = pkg.to_dict()
+        
+        with open(self.db_path, 'w') as f:
+            json.dump(data, f, indent=2)
+    
+    def add_package(self, package: Package):
+        """Добавляет пакет в базу"""
+        package.installed = True
+        package.install_date = datetime.now()
+        self.installed[package.name] = package
+        self.save()
+    
+    def remove_package(self, name: str):
+        """Удаляет пакет из базы"""
+        if name in self.installed:
+            del self.installed[name]
+            self.save()
+    
+    def is_installed(self, name: str) -> bool:
+        """Проверяет, установлен ли пакет"""
+        return name in self.installed
+    
+    def get_package(self, name: str) -> Optional[Package]:
+        """Возвращает установленный пакет"""
+        return self.installed.get(name)
\ No newline at end of file