define abstract BookmarkElement and Bookmarks classes

bookmark_sync/__init__.py

@@ -0,0 +1,87 @@
+from abc import ABC, abstractmethod
+
+class BookmarkElement(ABC):
+    def __init__(self,data):
+        self._data = data
+
+    @property
+    @abstractmethod
+    def children(self):
+        pass
+    
+    @property
+    @abstractmethod
+    def name(self):
+        pass
+
+    @property
+    @abstractmethod
+    def parent(self):
+        pass
+
+    @property
+    @abstractmethod
+    def date_added(self):
+        pass
+
+    @property
+    @abstractmethod
+    def position(self):
+        pass
+
+class Bookmark(BookmarkElement):
+    @property
+    @abstractmethod
+    def address(self):
+        pass
+
+    @property
+    def children(self):
+        return []
+
+class Folder(BookmarkElement):
+    @property
+    @abstractmethod
+    def date_modified(self):
+        pass
+
+    @abstractmethod
+    def is_root(self):
+        pass
+
+    @abstractmethod
+    def is_toolbar(self):
+        pass
+
+class Bookmarks(ABC):
+    def __init__(self, profile_name="default"):
+        self.profile = profile_name
+        self.read_data()
+
+    @abstractmethod
+    def read_data(self):
+        pass
+
+    @property
+    @abstractmethod
+    def folders(self):
+        pass
+    
+    @property
+    @abstractmethod
+    def bookmarks(self):
+        pass
+    
+    @property
+    def root_folder(self):
+        pass
+
+    @property
+    @abstractmethod
+    def toolbar_folder(self):
+        pass
+    
+    @property
+    @abstractmethod
+    def other_bookmarks(self):
+        pass