From b2b447e39237737abedf3c78f684837f666d317a Mon Sep 17 00:00:00 2001
From: Ivan <l.ivan.dev@outlook.com>
Date: Mon, 26 Apr 2021 22:42:56 +0300
Subject: [PATCH 1/7] Implemented most of the api placeholders

---
 frontend/api.py       | 111 +++++++++++++++++++++++--
 frontend/api_demo.py  |  37 ++++-----
 frontend/user.py      | 186 ++++++++++++++++++++++++++++++++----------
 frontend/workspace.py |  25 +++++-
 4 files changed, 286 insertions(+), 73 deletions(-)

diff --git a/frontend/api.py b/frontend/api.py
index e180c72..f3c5f0d 100644
--- a/frontend/api.py
+++ b/frontend/api.py
@@ -13,10 +13,10 @@ API_TODO_ITEMS_DELETE = "api/todo_items/{0}/"
 
 API_LISTS_LIST = "api/lists/"
 API_LISTS_CREATE = "api/lists/"
-API_LISTS_READ = "lists/{0}/"
-API_LISTS_UPDATE = "lists/{0}/"
-API_LISTS_PARTIAL_UPDATE = "lists/{0}/"
-API_LISTS_DELETE = "lists/{0}/"
+API_LISTS_READ = "api/lists/{0}/"
+API_LISTS_UPDATE = "api/lists/{0}/"
+API_LISTS_PARTIAL_UPDATE = "api/lists/{0}/"
+API_LISTS_DELETE = "api/lists/{0}/"
 
 API_TOKEN = "api/token/"
 
@@ -101,7 +101,44 @@ class UserApi(object):
                 headers=self._access_token_(),
             )
         )
+    
+    def lists_delete(self, id):
+        """
+        Auth required
+        
+        Deletes a to-do list by id
+        
+        Parameters
+        ----------
+        id: to-do list id to delete
+        """
+        return UserApi._raise_or_return_(
+            requests.delete(
+                url=self.get_api(API_LISTS_DELETE.format(id)),
+                headers=self._access_token_(),
+            )
+        )
+    
+    def lists_update(self, title, id):
+        """
+        Rename a new to-do list
+        Auth required
 
+        Parameters
+        ----------
+        title : str 
+            New name for a list.
+        id : int
+
+        """
+        return UserApi._raise_or_return_(
+            requests.put(
+                url=self.get_api(API_LISTS_UPDATE.format(id)),
+                json={"title": title},
+                headers=self._access_token_(),
+            )
+        )
+    
     def todo_items_list(self, **argv):
         """
         List all the exsiting to-do items.
@@ -118,7 +155,68 @@ class UserApi(object):
                 url=self.get_api(API_TODO_ITEMS_LIST), headers=self._access_token_(), params=argv
             )
         )
+    
+    def todo_items_create(self, parent, text="Note"):
+        """
+        Create a new to-do item
+        Auth required
 
+        Parameters
+        ----------
+        parent : id of parent list
+        text : str, optional
+            New note. The default is "Note".
+
+        """
+        return UserApi._raise_or_return_(
+            requests.post(
+                url=self.get_api(API_TODO_ITEMS_CREATE),
+                json={"text": text, "parent":parent, "finished":False},
+                headers=self._access_token_(),
+            )
+        )
+    
+    def todo_items_delete(self, id):
+        """
+        Auth required
+        
+        Deletes a to-do item by id
+        
+        Parameters
+        ----------
+        id: to-do item id to delete
+        """
+        return UserApi._raise_or_return_(
+            requests.delete(
+                url=self.get_api(API_TODO_ITEMS_DELETE.format(id)),
+                headers=self._access_token_(),
+            )
+        )
+    
+    def todo_items_update(self, id, text, finished, parent):
+        """
+        Rename a new to-do list
+        Auth required
+
+        Parameters
+        ----------
+        id : int
+            Note id
+        text : str 
+            New note for the item.
+        finished : bool
+            New state for the item
+        parent : int
+            Parent list id
+        """
+        return UserApi._raise_or_return_(
+            requests.put(
+                url=self.get_api(API_TODO_ITEMS_UPDATE.format(id)),
+                json={"text": text, "finished":finished, "parent":parent},
+                headers=self._access_token_(),
+            )
+        )
+    
     # def create(self, title="Untitled"):
     # """
     # Create a new to-do list
@@ -215,4 +313,7 @@ class UserApi(object):
     @staticmethod
     def _raise_or_return_(response):
         response.raise_for_status()
-        return response.json()
+        try:
+            return response.json()
+        except:
+            return response.content
diff --git a/frontend/api_demo.py b/frontend/api_demo.py
index f79bbc3..ee1959b 100644
--- a/frontend/api_demo.py
+++ b/frontend/api_demo.py
@@ -1,9 +1,10 @@
+import numpy as np
 from user import User
 
 
 def print_lists(lists):
     for item in lists:
-        print(f"List: '{item}'", f"Id: {item.id}", "|", "|".join([str(x) for x in item.items]))
+        print(f"List: '{item.title}'", f"Id: {item.id}", "|", "|".join([str(x) for x in item.items_]))
 
 
 DEFAULT_URL = "http://127.0.0.1:8000"
@@ -12,37 +13,35 @@ user = User(url=DEFAULT_URL)
 user.auth("root", "root")
 
 # Fetch existing lists:
-lists = user.fetchUserLists()
-print("Fecthing...")
-print_lists(lists)
-
-# Remove user list by id:
-user.removeUserList(5)
-lists = user.fetchUserLists()
-print(f"Removing {5}...")
-print_lists(lists)
+print_lists(user.fetchUserLists())
 
 # Append a new list to user:
 print("Appending list...")
 scroll = user.appendUserList(title="a new list!")
-print_lists(lists)
+print_lists(user.fetchUserLists())
+
+# Remove user list by id:
+i = user.lists_[0].id
+print(f"Removing {i}...")
+user.removeUserList(i)
+print_lists(user.fetchUserLists())
 
 # Modify list 0:
 print("Modifyng list...")
-lists[0].modify(title="A new title")
-print_lists(lists)
+user.lists_[0].modify(title=f"A new title {np.random.random()}")
+print_lists(user.fetchUserLists())
 
 # Append item to list:
 print("Appending item to last list...")
-item = lists[-1].append(text="this is an item")
-print_lists(lists)
+item = user.lists_[-1].append(text="this is an item")
+print_lists(user.fetchUserLists())
 
 # Modifying item
 print("Modifyng appended item...")
 item.modify(finished=True, text="this is an updated item")
-print_lists(lists)
+print_lists(user.fetchUserLists())
 
 # Removing item at 0
-print("Removing item 0 from list 0...")
-lists[0].remove(0)
-print_lists(lists)
+print("Removing last item from last list...")
+user.lists_[-1].remove(-1)
+print_lists(user.fetchUserLists())
diff --git a/frontend/user.py b/frontend/user.py
index 5cdff8e..51fab7d 100644
--- a/frontend/user.py
+++ b/frontend/user.py
@@ -1,85 +1,135 @@
 import os
 
+from types import SimpleNamespace
+
 from datetime import datetime
+
+import numpy as np
+
 from api import UserApi
 
+LIST_UPDATEBLE = ["title"]
+TODO_ITEM_UPDATEBLE = ["text", "finished"]
+UPDATE_ERROR = "Failed to update property: {0}"
+
+DATETIME_STR = "%Y-%m-%dT%H:%M:%S.%fZ"
+
+def bad_arguments(x, d):
+    return list((set(x) - set(d)))
 
 class ToDoList(object):
-    def __init__(self, id, title, created_at=None, items=[], parent=None):
+    def __init__(self, id, title, created_at=None, items=None, 
+        parent=None, user=None):
         self.id = id
         self.title = title
-        self.items = items
-        self.created_at = created_at
+        self.items_ = [] if items is None else items
+        if type(created_at) is datetime:
+            self.created_at = created_at
+        else:
+            self.created_at = datetime.strptime(created_at, DATETIME_STR)
+        self.user = user
 
     def __iter__(self):
-        for item in self.items:
+        for item in self.items_:
             yield item
 
     def __getitem__(self, index):
-        return self.items[index]
+        return self.items_[index]
 
     def __len__(self):
-        return len(self.items)
+        return len(self.items_)
 
     def __str__(self):
         return f"[{self.id}] {self.title}"
 
     def index(self, value):
-        return self.items.index(value)
-
-    # ToDo
+        return self.items_.index(value)
+        
     def remove(self, index):
-        self.items.remove(self.items[index])
-        self.sync()
-
-    # ToDo
+        """
+        Remove item at index from db
+        """
+        item = self.items_[index]
+        self.items_.remove(item)
+        item.dispose()
+        
     def append(self, text):
-        item = ToDoItem(id=None, text=text, created_at=datetime.now())
-        self.items.append(item)
-        item.sync()
-        self.sync()
-        return item
+        """
+        Add a new item to db
+        """
+        if "DEBUG" in os.environ:
+            created_item = ToDoItem(id=np.random.randint(100, 1000), text=text, user=self.user)
+        else:
+            created_item = self.user.todo_items_create(parent=self.id, text=text)
+            created_item = ToDoItem(**created_item, user=self.user)
+        self.items_.append(created_item)
+        return created_item
 
     def modify(self, **argv):
+        bad = bad_arguments(argv.keys(), LIST_UPDATEBLE)
+        if len(bad) > 0:
+            raise RuntimeError(UPDATE_ERROR.format(bad[0]))
         for key, value in argv.items():
             setattr(self, key, value)
         self.sync()
-
-    # ToDo
+    
+    def dispose(self):
+        print(f"To-do list id '{self.id}' is being disposed of...")
+        if "DEBUG" in os.environ:
+            return
+        for item in self.items_:
+            item.dispose()
+        self.user.lists_delete(self.id)            
+    
     def sync(self):
-        # ToDo send request or store in form
         print(f"Item '{self}' is being synchronized...")
+        if "DEBUG" in os.environ:
+            return
+        self.user.lists_update(title=self.title, id=self.id)
+        
 
 
 class ToDoItem(object):
-    def __init__(self, id, text, finished=False, created_at=None, parent=None):
+    def __init__(self, id, text, finished=False, created_at=None, 
+        parent=None, user=None):
         self.id = id
         self.text = text
         self.finished = finished
-        self.created_at = created_at
+        if type(created_at) is datetime:
+            self.created_at = created_at
+        else:
+            self.created_at = datetime.strptime(created_at, DATETIME_STR)
+        self.parent = parent
+        self.user = user
 
     def __str__(self):
         return f"[{self.id}] {self.text}"
 
     def modify(self, **argv):
+        bad = bad_arguments(argv.keys(), TODO_ITEM_UPDATEBLE)
+        if len(bad) > 0:
+            print(argv)
+            raise RuntimeError(UPDATE_ERROR.format(bad[0]))
         for key, value in argv.items():
             setattr(self, key, value)
         self.sync()
-
-    # ToDo
-    def sync(self):
-        # ToDo send request or store in form
-        print(f"Item '{self}' is being synchronized...")
-
-
-class User(UserApi):
-    def auth(self, user, passwd):
+    
+    def dispose(self):
+        print(f"To-do item id '{self.id}' is being disposed of...")
         if "DEBUG" in os.environ:
             return
-        UserApi.auth(self, user, passwd)
-
+        self.user.todo_items_delete(self.id)
+    
     # ToDo
-    items = [
+    def sync(self):
+        print(f"Item '{self}' is being synchronized...")
+        if "DEBUG" in os.environ:
+            return
+        self.user.todo_items_update(id=self.id, text=self.text, finished=self.finished, parent=self.parent)
+
+
+def make_debug_lists():
+    return [
         ToDoList(
             id=i,
             title=f"List {i}",
@@ -92,17 +142,63 @@ class User(UserApi):
         for i in range(10)
     ]
 
-    # ToDo
+class User(UserApi):
+    
+    def auth(self, user, passwd):
+        """
+        Basic authentification
+        """
+        if "DEBUG" in os.environ:
+            return
+        UserApi.auth(self, user, passwd)
+    
+    # Storing lists - mostly for debug purposes
+    lists_ = make_debug_lists()
+    
     def fetchUserLists(self):
-        return self.items
+        """
+        Fetch existing user lists from the server
+        returns: fetched list of ToDoList sorted by creation datetime
+        """
+        print("Fetching lists...")
+        if "DEBUG" in os.environ:
+            return self.lists_
+        user_lists = self.lists_list()["results"]
+        user_items = self.todo_items_list()["results"]
+        toDoLists = {x["id"]:ToDoList(**x, user=self) for x in user_lists}
+        toDoItems = [ToDoItem(**x, user=self) for x in user_items]
+        for toDoItem in toDoItems:
+            # Catching stray items
+            if not hasattr(toDoItem, "parent"):
+                toDoItem.dispose()
+                continue
+            toDoLists[toDoItem.parent].items_.append(toDoItem)
+        for toDoList in toDoLists.values():
+            toDoList.items_ = sorted(toDoList.items_, key=lambda x: x.created_at)
+        self.lists_ = sorted(toDoLists.values(), key=lambda x: x.created_at)
+        return self.lists_
 
-    # ToDo
     def removeUserList(self, id):
-        self.items = [item for item in self.items if item.id != id]
-
-    # ToDo
+        """
+        Remove existing user to-do list from the serverreturns: 
+        """
+        to_remove = [item for item in self.lists_ if item.id == id][0]
+        self.lists_.remove(to_remove)
+        if not ("DEBUG" in os.environ):
+            to_remove.dispose()
+        return self.lists_
+        
+        
     def appendUserList(self, title):
-        item = ToDoList(id=None, title=title, created_at=datetime.now())
-        self.items.append(item)
-        item.sync()
-        return item
+        """
+        Create a new user list
+        title: title of list to create
+        returns: created item
+        """
+        if "DEBUG" in os.environ:
+            item = ToDoList(id=np.random.randint(100, 1000), title=title, created_at=datetime.now())
+            self.lists_.append(item)
+            return item
+        created_list = self.lists_create(title=title)
+        created_list = ToDoList(**created_list)
+        return created_list
diff --git a/frontend/workspace.py b/frontend/workspace.py
index 34830ec..c3eedcf 100644
--- a/frontend/workspace.py
+++ b/frontend/workspace.py
@@ -123,10 +123,10 @@ class WorkSpaceFrame(tk.Frame):
         # data
         self.lists = user.fetchUserLists()
 
-        text = tk.Text(self, width=15, height=1)
-        text.pack(anchor="sw")
+        self.add_list_text = tk.Text(self, width=15, height=1)
+        self.add_list_text.pack(anchor="sw")
 
-        add = tk.Button(self, text="Добавить лист", command=placeholder)
+        add = tk.Button(self, text="Добавить лист", command=self.add_list)
         add.pack(anchor="sw")
 
         # select list box
@@ -152,9 +152,26 @@ class WorkSpaceFrame(tk.Frame):
         # todo lists
         self.toToList = ToDoListWidget(self)
         self.toToList.pack(side="left", fill="both", expand=1)
+    
+    def add_list(self, *args):
+        text = self.add_list_text.get(1.0, "end").strip()
+        if len(text) == 0:
+            print("empty name! Not adding!")
+            return
+        self.user.appendUserList(title=text)
+        self.lists = self.user.fetchUserLists()
+        
+        # fill list box
+        self.listBox.delete(0,'end')
+        for item in self.lists:
+            s = f"{str(item)}: {item.created_at.strftime('%Y-%m-%d %H:%M:%S')}"
+            self.listBox.insert(tk.END, s)
+        self.listBox.pack()
+        len(self.lists) > 0 and self.listBox.selection_set(first=0)
+        
 
     def listBox_selected(self, *args):
-
+        
         self.toToList.clear()
 
         selection = self.listBox.curselection()

From c9610f77658baf6c690d0f00a326deb904d43d51 Mon Sep 17 00:00:00 2001
From: Ivan <l.ivan.dev@outlook.com>
Date: Mon, 26 Apr 2021 22:50:40 +0300
Subject: [PATCH 2/7] =?UTF-8?q?=D0=9A=D0=BE=D1=81=D0=BC=D0=B5=D1=82=D0=B8?=
 =?UTF-8?q?=D1=87=D0=B5=D1=81=D0=BA=D0=B8=D0=B5=20=D0=B8=D0=B7=D0=BC=D0=B5?=
 =?UTF-8?q?=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F=20=D0=B2=20=D0=BA=D0=BE=D0=B4?=
 =?UTF-8?q?=D0=B5?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 frontend/api.py       | 33 +++++++++++++++++----------------
 frontend/api_demo.py  |  4 +++-
 frontend/user.py      | 42 ++++++++++++++++++++----------------------
 frontend/workspace.py |  9 ++++-----
 4 files changed, 44 insertions(+), 44 deletions(-)

diff --git a/frontend/api.py b/frontend/api.py
index f3c5f0d..ad54387 100644
--- a/frontend/api.py
+++ b/frontend/api.py
@@ -101,13 +101,13 @@ class UserApi(object):
                 headers=self._access_token_(),
             )
         )
-    
+
     def lists_delete(self, id):
         """
         Auth required
-        
+
         Deletes a to-do list by id
-        
+
         Parameters
         ----------
         id: to-do list id to delete
@@ -118,7 +118,7 @@ class UserApi(object):
                 headers=self._access_token_(),
             )
         )
-    
+
     def lists_update(self, title, id):
         """
         Rename a new to-do list
@@ -126,7 +126,7 @@ class UserApi(object):
 
         Parameters
         ----------
-        title : str 
+        title : str
             New name for a list.
         id : int
 
@@ -138,7 +138,7 @@ class UserApi(object):
                 headers=self._access_token_(),
             )
         )
-    
+
     def todo_items_list(self, **argv):
         """
         List all the exsiting to-do items.
@@ -155,7 +155,7 @@ class UserApi(object):
                 url=self.get_api(API_TODO_ITEMS_LIST), headers=self._access_token_(), params=argv
             )
         )
-    
+
     def todo_items_create(self, parent, text="Note"):
         """
         Create a new to-do item
@@ -171,17 +171,17 @@ class UserApi(object):
         return UserApi._raise_or_return_(
             requests.post(
                 url=self.get_api(API_TODO_ITEMS_CREATE),
-                json={"text": text, "parent":parent, "finished":False},
+                json={"text": text, "parent": parent, "finished": False},
                 headers=self._access_token_(),
             )
         )
-    
+
     def todo_items_delete(self, id):
         """
         Auth required
-        
+
         Deletes a to-do item by id
-        
+
         Parameters
         ----------
         id: to-do item id to delete
@@ -192,7 +192,7 @@ class UserApi(object):
                 headers=self._access_token_(),
             )
         )
-    
+
     def todo_items_update(self, id, text, finished, parent):
         """
         Rename a new to-do list
@@ -202,7 +202,7 @@ class UserApi(object):
         ----------
         id : int
             Note id
-        text : str 
+        text : str
             New note for the item.
         finished : bool
             New state for the item
@@ -212,11 +212,11 @@ class UserApi(object):
         return UserApi._raise_or_return_(
             requests.put(
                 url=self.get_api(API_TODO_ITEMS_UPDATE.format(id)),
-                json={"text": text, "finished":finished, "parent":parent},
+                json={"text": text, "finished": finished, "parent": parent},
                 headers=self._access_token_(),
             )
         )
-    
+
     # def create(self, title="Untitled"):
     # """
     # Create a new to-do list
@@ -315,5 +315,6 @@ class UserApi(object):
         response.raise_for_status()
         try:
             return response.json()
-        except:
+        except Exception as e:
+            print(e)
             return response.content
diff --git a/frontend/api_demo.py b/frontend/api_demo.py
index ee1959b..9ac61b9 100644
--- a/frontend/api_demo.py
+++ b/frontend/api_demo.py
@@ -4,7 +4,9 @@ from user import User
 
 def print_lists(lists):
     for item in lists:
-        print(f"List: '{item.title}'", f"Id: {item.id}", "|", "|".join([str(x) for x in item.items_]))
+        print(
+            f"List: '{item.title}'", f"Id: {item.id}", "|", "|".join([str(x) for x in item.items_])
+        )
 
 
 DEFAULT_URL = "http://127.0.0.1:8000"
diff --git a/frontend/user.py b/frontend/user.py
index 51fab7d..bce6629 100644
--- a/frontend/user.py
+++ b/frontend/user.py
@@ -1,7 +1,5 @@
 import os
 
-from types import SimpleNamespace
-
 from datetime import datetime
 
 import numpy as np
@@ -14,12 +12,13 @@ UPDATE_ERROR = "Failed to update property: {0}"
 
 DATETIME_STR = "%Y-%m-%dT%H:%M:%S.%fZ"
 
+
 def bad_arguments(x, d):
     return list((set(x) - set(d)))
 
+
 class ToDoList(object):
-    def __init__(self, id, title, created_at=None, items=None, 
-        parent=None, user=None):
+    def __init__(self, id, title, created_at=None, items=None, parent=None, user=None):
         self.id = id
         self.title = title
         self.items_ = [] if items is None else items
@@ -44,7 +43,7 @@ class ToDoList(object):
 
     def index(self, value):
         return self.items_.index(value)
-        
+
     def remove(self, index):
         """
         Remove item at index from db
@@ -52,7 +51,7 @@ class ToDoList(object):
         item = self.items_[index]
         self.items_.remove(item)
         item.dispose()
-        
+
     def append(self, text):
         """
         Add a new item to db
@@ -72,26 +71,24 @@ class ToDoList(object):
         for key, value in argv.items():
             setattr(self, key, value)
         self.sync()
-    
+
     def dispose(self):
         print(f"To-do list id '{self.id}' is being disposed of...")
         if "DEBUG" in os.environ:
             return
         for item in self.items_:
             item.dispose()
-        self.user.lists_delete(self.id)            
-    
+        self.user.lists_delete(self.id)
+
     def sync(self):
         print(f"Item '{self}' is being synchronized...")
         if "DEBUG" in os.environ:
             return
         self.user.lists_update(title=self.title, id=self.id)
-        
 
 
 class ToDoItem(object):
-    def __init__(self, id, text, finished=False, created_at=None, 
-        parent=None, user=None):
+    def __init__(self, id, text, finished=False, created_at=None, parent=None, user=None):
         self.id = id
         self.text = text
         self.finished = finished
@@ -113,19 +110,21 @@ class ToDoItem(object):
         for key, value in argv.items():
             setattr(self, key, value)
         self.sync()
-    
+
     def dispose(self):
         print(f"To-do item id '{self.id}' is being disposed of...")
         if "DEBUG" in os.environ:
             return
         self.user.todo_items_delete(self.id)
-    
+
     # ToDo
     def sync(self):
         print(f"Item '{self}' is being synchronized...")
         if "DEBUG" in os.environ:
             return
-        self.user.todo_items_update(id=self.id, text=self.text, finished=self.finished, parent=self.parent)
+        self.user.todo_items_update(
+            id=self.id, text=self.text, finished=self.finished, parent=self.parent
+        )
 
 
 def make_debug_lists():
@@ -142,8 +141,8 @@ def make_debug_lists():
         for i in range(10)
     ]
 
+
 class User(UserApi):
-    
     def auth(self, user, passwd):
         """
         Basic authentification
@@ -151,10 +150,10 @@ class User(UserApi):
         if "DEBUG" in os.environ:
             return
         UserApi.auth(self, user, passwd)
-    
+
     # Storing lists - mostly for debug purposes
     lists_ = make_debug_lists()
-    
+
     def fetchUserLists(self):
         """
         Fetch existing user lists from the server
@@ -165,7 +164,7 @@ class User(UserApi):
             return self.lists_
         user_lists = self.lists_list()["results"]
         user_items = self.todo_items_list()["results"]
-        toDoLists = {x["id"]:ToDoList(**x, user=self) for x in user_lists}
+        toDoLists = {x["id"]: ToDoList(**x, user=self) for x in user_lists}
         toDoItems = [ToDoItem(**x, user=self) for x in user_items]
         for toDoItem in toDoItems:
             # Catching stray items
@@ -180,15 +179,14 @@ class User(UserApi):
 
     def removeUserList(self, id):
         """
-        Remove existing user to-do list from the serverreturns: 
+        Remove existing user to-do list from the serverreturns:
         """
         to_remove = [item for item in self.lists_ if item.id == id][0]
         self.lists_.remove(to_remove)
         if not ("DEBUG" in os.environ):
             to_remove.dispose()
         return self.lists_
-        
-        
+
     def appendUserList(self, title):
         """
         Create a new user list
diff --git a/frontend/workspace.py b/frontend/workspace.py
index c3eedcf..c82d2fd 100644
--- a/frontend/workspace.py
+++ b/frontend/workspace.py
@@ -152,7 +152,7 @@ class WorkSpaceFrame(tk.Frame):
         # todo lists
         self.toToList = ToDoListWidget(self)
         self.toToList.pack(side="left", fill="both", expand=1)
-    
+
     def add_list(self, *args):
         text = self.add_list_text.get(1.0, "end").strip()
         if len(text) == 0:
@@ -160,18 +160,17 @@ class WorkSpaceFrame(tk.Frame):
             return
         self.user.appendUserList(title=text)
         self.lists = self.user.fetchUserLists()
-        
+
         # fill list box
-        self.listBox.delete(0,'end')
+        self.listBox.delete(0, "end")
         for item in self.lists:
             s = f"{str(item)}: {item.created_at.strftime('%Y-%m-%d %H:%M:%S')}"
             self.listBox.insert(tk.END, s)
         self.listBox.pack()
         len(self.lists) > 0 and self.listBox.selection_set(first=0)
-        
 
     def listBox_selected(self, *args):
-        
+
         self.toToList.clear()
 
         selection = self.listBox.curselection()

From 3e307506e982c345cbbacf68b8b02d83865d5eeb Mon Sep 17 00:00:00 2001
From: Ivan <l.ivan.dev@outlook.com>
Date: Tue, 27 Apr 2021 17:05:55 +0300
Subject: [PATCH 3/7] =?UTF-8?q?=D0=9A=D0=BE=D1=81=D0=BC=D0=B5=D1=82=D0=B8?=
 =?UTF-8?q?=D1=87=D0=B5=D1=81=D0=BA=D0=B8=D0=B5=20=D0=BF=D1=80=D0=B0=D0=B2?=
 =?UTF-8?q?=D0=BA=D0=B8?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 frontend/api_demo.py | 20 +++++++++----------
 frontend/user.py     | 47 ++++++++++++++++++++++----------------------
 2 files changed, 34 insertions(+), 33 deletions(-)

diff --git a/frontend/api_demo.py b/frontend/api_demo.py
index 9ac61b9..e3ec5f9 100644
--- a/frontend/api_demo.py
+++ b/frontend/api_demo.py
@@ -1,4 +1,4 @@
-import numpy as np
+import random
 from user import User
 
 
@@ -22,15 +22,9 @@ print("Appending list...")
 scroll = user.appendUserList(title="a new list!")
 print_lists(user.fetchUserLists())
 
-# Remove user list by id:
-i = user.lists_[0].id
-print(f"Removing {i}...")
-user.removeUserList(i)
-print_lists(user.fetchUserLists())
-
 # Modify list 0:
 print("Modifyng list...")
-user.lists_[0].modify(title=f"A new title {np.random.random()}")
+user.lists_[0].modify(title=f"A new title №{random.random()}")
 print_lists(user.fetchUserLists())
 
 # Append item to list:
@@ -43,7 +37,13 @@ print("Modifyng appended item...")
 item.modify(finished=True, text="this is an updated item")
 print_lists(user.fetchUserLists())
 
-# Removing item at 0
-print("Removing last item from last list...")
+# Removing item at from last list
+print("Removing the last item from the last list...")
 user.lists_[-1].remove(-1)
 print_lists(user.fetchUserLists())
+
+# Remove user list by id:
+i = user.lists_[0].id
+print(f"Removing {i}...")
+user.removeUserList(i)
+print_lists(user.fetchUserLists())
diff --git a/frontend/user.py b/frontend/user.py
index bce6629..ed264df 100644
--- a/frontend/user.py
+++ b/frontend/user.py
@@ -1,8 +1,8 @@
 import os
+import random
 
 from datetime import datetime
 
-import numpy as np
 
 from api import UserApi
 
@@ -17,15 +17,21 @@ def bad_arguments(x, d):
     return list((set(x) - set(d)))
 
 
+def date_or_str(inpt):
+    if type(inpt) is datetime:
+        return inpt
+    elif type(inpt) is str:
+        return datetime.strptime(inpt, DATETIME_STR)
+    else:
+        return datetime.now()
+
+
 class ToDoList(object):
     def __init__(self, id, title, created_at=None, items=None, parent=None, user=None):
         self.id = id
         self.title = title
         self.items_ = [] if items is None else items
-        if type(created_at) is datetime:
-            self.created_at = created_at
-        else:
-            self.created_at = datetime.strptime(created_at, DATETIME_STR)
+        self.created_at = date_or_str(created_at)
         self.user = user
 
     def __iter__(self):
@@ -57,7 +63,7 @@ class ToDoList(object):
         Add a new item to db
         """
         if "DEBUG" in os.environ:
-            created_item = ToDoItem(id=np.random.randint(100, 1000), text=text, user=self.user)
+            created_item = ToDoItem(id=random.randint(100, 1000), text=text, user=self.user)
         else:
             created_item = self.user.todo_items_create(parent=self.id, text=text)
             created_item = ToDoItem(**created_item, user=self.user)
@@ -92,10 +98,7 @@ class ToDoItem(object):
         self.id = id
         self.text = text
         self.finished = finished
-        if type(created_at) is datetime:
-            self.created_at = created_at
-        else:
-            self.created_at = datetime.strptime(created_at, DATETIME_STR)
+        self.created_at = date_or_str(created_at)
         self.parent = parent
         self.user = user
 
@@ -105,7 +108,6 @@ class ToDoItem(object):
     def modify(self, **argv):
         bad = bad_arguments(argv.keys(), TODO_ITEM_UPDATEBLE)
         if len(bad) > 0:
-            print(argv)
             raise RuntimeError(UPDATE_ERROR.format(bad[0]))
         for key, value in argv.items():
             setattr(self, key, value)
@@ -117,7 +119,6 @@ class ToDoItem(object):
             return
         self.user.todo_items_delete(self.id)
 
-    # ToDo
     def sync(self):
         print(f"Item '{self}' is being synchronized...")
         if "DEBUG" in os.environ:
@@ -164,17 +165,17 @@ class User(UserApi):
             return self.lists_
         user_lists = self.lists_list()["results"]
         user_items = self.todo_items_list()["results"]
-        toDoLists = {x["id"]: ToDoList(**x, user=self) for x in user_lists}
-        toDoItems = [ToDoItem(**x, user=self) for x in user_items]
-        for toDoItem in toDoItems:
+        todo_lists = {x["id"]: ToDoList(**x, user=self) for x in user_lists}
+        todo_items = [ToDoItem(**x, user=self) for x in user_items]
+        for todo_item in todo_items:
             # Catching stray items
-            if not hasattr(toDoItem, "parent"):
-                toDoItem.dispose()
-                continue
-            toDoLists[toDoItem.parent].items_.append(toDoItem)
-        for toDoList in toDoLists.values():
-            toDoList.items_ = sorted(toDoList.items_, key=lambda x: x.created_at)
-        self.lists_ = sorted(toDoLists.values(), key=lambda x: x.created_at)
+            # if not hasattr(toDoItem, "parent"):
+            #    toDoItem.dispose()
+            #    continue
+            todo_lists[todo_item.parent].items_.append(todo_item)
+        for todo_list in todo_lists.values():
+            todo_list.items_ = sorted(todo_list.items_, key=lambda x: x.created_at)
+        self.lists_ = sorted(todo_lists.values(), key=lambda x: x.created_at)
         return self.lists_
 
     def removeUserList(self, id):
@@ -194,7 +195,7 @@ class User(UserApi):
         returns: created item
         """
         if "DEBUG" in os.environ:
-            item = ToDoList(id=np.random.randint(100, 1000), title=title, created_at=datetime.now())
+            item = ToDoList(id=random.randint(100, 1000), title=title, created_at=datetime.now())
             self.lists_.append(item)
             return item
         created_list = self.lists_create(title=title)

From 277f1e1aff5927b2d4030291ac4e94237d200f85 Mon Sep 17 00:00:00 2001
From: Ivan <l.ivan.dev@outlook.com>
Date: Tue, 27 Apr 2021 19:59:31 +0300
Subject: [PATCH 4/7] =?UTF-8?q?=D0=94=D0=BE=D0=B1=D0=B0=D0=B2=D0=BB=D0=B5?=
 =?UTF-8?q?=D0=BD=D0=BE=20=D1=81=D0=BE=D1=85=D1=80=D0=B0=D0=BD=D0=B5=D0=BD?=
 =?UTF-8?q?=D0=B8=D0=B5/=D0=B2=D0=BE=D1=81=D1=81=D1=82=D0=B0=D0=BD=D0=BE?=
 =?UTF-8?q?=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D0=B5=20=D1=82=D0=BE=D0=BA=D0=B5?=
 =?UTF-8?q?=D0=BD=D0=BE=D0=B2?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 backend/backend/urls.py | 16 +++++++--------
 frontend/api.py         | 17 ++++++++++++++--
 frontend/api_demo.py    |  1 +
 frontend/login.py       | 20 ++++++++++++++++++
 frontend/todo_tk.py     |  9 +++++++++
 frontend/user.py        | 45 +++++++++++++++++++++++++++++++++++++++--
 frontend/workspace.py   | 12 +++++++++++
 7 files changed, 108 insertions(+), 12 deletions(-)

diff --git a/backend/backend/urls.py b/backend/backend/urls.py
index d123db5..cdcbc7f 100644
--- a/backend/backend/urls.py
+++ b/backend/backend/urls.py
@@ -13,13 +13,13 @@ from drf_yasg import openapi
 from .api import router
 
 schema_view = get_schema_view(
-   openapi.Info(
-      title="ToDo List",
-      default_version='v1',
-      description="Swagger Interface for ToDo List",
-   ),
-   public=True,
-   permission_classes=(permissions.AllowAny,),
+    openapi.Info(
+        title="ToDo List",
+        default_version="v1",
+        description="Swagger Interface for ToDo List",
+    ),
+    public=True,
+    permission_classes=(permissions.AllowAny,),
 )
 
 urlpatterns = [
@@ -28,5 +28,5 @@ urlpatterns = [
     path("api/token/refresh/", TokenRefreshView.as_view(), name="token_refresh"),
     path("api/", include(router.urls)),
     path("api-auth/", include("rest_framework.urls", namespace="rest_framework")),
-    path('swagger/', schema_view.with_ui('swagger', cache_timeout=0), name='schema-swagger-ui'),
+    path("swagger/", schema_view.with_ui("swagger", cache_timeout=0), name="schema-swagger-ui"),
 ]
diff --git a/frontend/api.py b/frontend/api.py
index ad54387..458c0d8 100644
--- a/frontend/api.py
+++ b/frontend/api.py
@@ -18,7 +18,8 @@ API_LISTS_UPDATE = "api/lists/{0}/"
 API_LISTS_PARTIAL_UPDATE = "api/lists/{0}/"
 API_LISTS_DELETE = "api/lists/{0}/"
 
-API_TOKEN = "api/token/"
+API_TOKEN_CREATE = "api/token/"
+API_TOKEN_REFRESH = "api/token/refresh/"
 
 
 class UserApi(object):
@@ -61,11 +62,23 @@ class UserApi(object):
 
         """
         token = UserApi._raise_or_return_(
-            requests.post(url=self.get_api(API_TOKEN), json={"username": user, "password": passwd})
+            requests.post(
+                url=self.get_api(API_TOKEN_CREATE), json={"username": user, "password": passwd}
+            )
         )
         self.token = SimpleNamespace(**token)
         return self.token
 
+    def refresh(self):
+        """
+        Refresh existing token
+        """
+        token = UserApi._raise_or_return_(
+            requests.post(url=self.get_api(API_TOKEN_REFRESH), json={"refresh": self.token.refresh})
+        )
+        self.token.access = token["access"]
+        return self.token
+
     def lists_list(self, **argv):
         """
         List all the exsiting to-do lists.
diff --git a/frontend/api_demo.py b/frontend/api_demo.py
index e3ec5f9..329297c 100644
--- a/frontend/api_demo.py
+++ b/frontend/api_demo.py
@@ -13,6 +13,7 @@ DEFAULT_URL = "http://127.0.0.1:8000"
 
 user = User(url=DEFAULT_URL)
 user.auth("root", "root")
+user.refresh()
 
 # Fetch existing lists:
 print_lists(user.fetchUserLists())
diff --git a/frontend/login.py b/frontend/login.py
index 64ba0e3..0efd7f9 100644
--- a/frontend/login.py
+++ b/frontend/login.py
@@ -38,6 +38,13 @@ class LoginFrame(tk.Frame):
             print(ex)
             message.invalid_login()
 
+    # Если захочется реализовать в логине
+    """
+    @property
+    def remember(self):
+        return self.rbtn_var.get()
+    """
+
     def initAUTH(self) -> None:
         """
         Создает окно авторизации программы
@@ -66,3 +73,16 @@ class LoginFrame(tk.Frame):
         # Кнопка авториазции
         btn = tk.Button(self, text="Войти", command=self.login_clicked)
         btn.grid(row=14, column=12, columnspan=3, rowspan=1, sticky="nsew")
+
+        # Если захочется реализовать в логине
+        """
+        # Запомнить пользователя
+        self.rbtn_var = tk.IntVar(value=0)
+        rbtn = tk.Checkbutton(
+            self,
+            text="Запомнить меня",
+            variable=self.rbtn_var,
+            command=None
+        )
+        rbtn.grid(row=15, column=12, columnspan=3, rowspan=1, sticky="nsew")
+        """
diff --git a/frontend/todo_tk.py b/frontend/todo_tk.py
index 831ac6c..e97c352 100644
--- a/frontend/todo_tk.py
+++ b/frontend/todo_tk.py
@@ -4,6 +4,7 @@ import sys
 import tkinter as tk
 from login import LoginFrame
 from workspace import WorkSpaceFrame
+from user import User
 
 if "win" in sys.platform.lower():
     DEFAULT_URL = "http://localhost:8000"
@@ -24,11 +25,19 @@ class Application(tk.Tk):
 
     def login(self):
         """Возвращает пользователя - его можно потом сериализовать"""
+        # Пользователь сохранен! Авторизация не нужна!
+        user = User.load()
+        if user is not None:
+            return user
+        # Не удалось - нужен логин
         self.frame = LoginFrame(master=self, url=DEFAULT_URL)
         while not self.frame.loggedIn:
             self.update_idletasks()
             self.update()
         self.frame.destroy()
+        # Нужно запомнить пользователя
+        # if self.frame.remember:
+        #    self.frame.user.save()
         return self.frame.user
 
     def main(self, user):
diff --git a/frontend/user.py b/frontend/user.py
index ed264df..e5e6baf 100644
--- a/frontend/user.py
+++ b/frontend/user.py
@@ -1,8 +1,11 @@
 import os
 import random
-
 from datetime import datetime
+from types import SimpleNamespace
 
+from pathlib import Path
+
+import json
 
 from api import UserApi
 
@@ -12,6 +15,8 @@ UPDATE_ERROR = "Failed to update property: {0}"
 
 DATETIME_STR = "%Y-%m-%dT%H:%M:%S.%fZ"
 
+USER_TOKEN_PATH = os.path.join(Path.home(), ".todo_config.json")
+
 
 def bad_arguments(x, d):
     return list((set(x) - set(d)))
@@ -150,7 +155,43 @@ class User(UserApi):
         """
         if "DEBUG" in os.environ:
             return
-        UserApi.auth(self, user, passwd)
+        return UserApi.auth(self, user, passwd)
+
+    def remove(self):
+        """
+        Remove the login file from homedir
+        """
+        if not os.path.exists(USER_TOKEN_PATH):
+            return
+        try:
+            os.remove(USER_TOKEN_PATH)
+        except Exception as e:
+            raise RuntimeError("Failed to remove tokens:", e)
+
+    def save(self):
+        """
+        Store user token in homedir
+        """
+        try:
+            with open(USER_TOKEN_PATH, "w") as handler:
+                json.dump(self.token.__dict__, handler)
+        except Exception as e:
+            raise RuntimeError("Failed to store tokens:", e)
+
+    @staticmethod
+    def load():
+        """
+        Restore user token from the file in homedir
+        """
+        if os.path.exists(USER_TOKEN_PATH):
+            try:
+                with open(USER_TOKEN_PATH, "r") as handler:
+                    user = User(token=SimpleNamespace(**json.load(handler)))
+                    user.refresh()
+                    return user
+            except Exception as e:
+                raise RuntimeError("Failed to restore tokens:", e)
+        return None
 
     # Storing lists - mostly for debug purposes
     lists_ = make_debug_lists()
diff --git a/frontend/workspace.py b/frontend/workspace.py
index c82d2fd..8a488bc 100644
--- a/frontend/workspace.py
+++ b/frontend/workspace.py
@@ -118,8 +118,20 @@ class WorkSpaceFrame(tk.Frame):
         self.pack(fill=tk.BOTH, expand=1)
         self.initLayout(user)
 
+    def destroy(self):
+        tk.Tk.destroy(self)
+        if self.rbtn_var.get() > 0:
+            self.user.save()
+        else:
+            self.user.remove()
+
     def initLayout(self, user):
 
+        # Запомнить пользователя
+        self.rbtn_var = tk.IntVar(value=1)
+        rbtn = tk.Checkbutton(self, text="Запомнить меня", variable=self.rbtn_var, command=None)
+        rbtn.pack(anchor="n")
+
         # data
         self.lists = user.fetchUserLists()
 

From 5ddadac47c94d1139e8d4492a0e8fc8eec8a8146 Mon Sep 17 00:00:00 2001
From: Ivan <l.ivan.dev@outlook.com>
Date: Wed, 28 Apr 2021 14:46:28 +0300
Subject: [PATCH 5/7] =?UTF-8?q?=D0=9F=D0=BE=D1=84=D0=B8=D0=BA=D1=81=D0=B8?=
 =?UTF-8?q?=D0=BB=20=D0=B0=D0=BF=D0=B8=20=D1=81=D0=BE=D1=85=D1=80=D0=B0?=
 =?UTF-8?q?=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F=20=D1=82=D0=BE=D0=BA=D0=B5=D0=BD?=
 =?UTF-8?q?=D0=BE=D0=B2=20=D0=B8=20=D1=80=D0=B5=D0=B6=D0=B8=D0=BC=20=D0=BE?=
 =?UTF-8?q?=D1=82=D0=BB=D0=B0=D0=B4=D0=BA=D0=B8?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 frontend/todo_tk.py | 9 ++++++---
 frontend/user.py    | 8 ++++++++
 2 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/frontend/todo_tk.py b/frontend/todo_tk.py
index e97c352..0336afd 100644
--- a/frontend/todo_tk.py
+++ b/frontend/todo_tk.py
@@ -26,9 +26,12 @@ class Application(tk.Tk):
     def login(self):
         """Возвращает пользователя - его можно потом сериализовать"""
         # Пользователь сохранен! Авторизация не нужна!
-        user = User.load()
-        if user is not None:
-            return user
+        try:
+            user = User.load()
+            if user is not None:
+                return user
+        except Exception as e:
+            print("Failed to restore login:", e)
         # Не удалось - нужен логин
         self.frame = LoginFrame(master=self, url=DEFAULT_URL)
         while not self.frame.loggedIn:
diff --git a/frontend/user.py b/frontend/user.py
index e5e6baf..7c58714 100644
--- a/frontend/user.py
+++ b/frontend/user.py
@@ -161,6 +161,9 @@ class User(UserApi):
         """
         Remove the login file from homedir
         """
+        if "DEBUG" in os.environ:
+            print("Debug mode is on - no login storing")
+            return
         if not os.path.exists(USER_TOKEN_PATH):
             return
         try:
@@ -172,6 +175,9 @@ class User(UserApi):
         """
         Store user token in homedir
         """
+        if "DEBUG" in os.environ:
+            print("Debug mode is on - no login storing")
+            return
         try:
             with open(USER_TOKEN_PATH, "w") as handler:
                 json.dump(self.token.__dict__, handler)
@@ -183,6 +189,8 @@ class User(UserApi):
         """
         Restore user token from the file in homedir
         """
+        if "DEBUG" in os.environ:
+            raise RuntimeError("Debug mode is on - no login storing")
         if os.path.exists(USER_TOKEN_PATH):
             try:
                 with open(USER_TOKEN_PATH, "r") as handler:

From 3d779590e9e393d329760e76c1f2ca59a055d523 Mon Sep 17 00:00:00 2001
From: Ivan <l.ivan.dev@outlook.com>
Date: Wed, 28 Apr 2021 17:53:38 +0300
Subject: [PATCH 6/7] =?UTF-8?q?=D0=A4=D1=83=D0=BD=D0=BA=D1=86=D0=B8=D0=BE?=
 =?UTF-8?q?=D0=BD=D0=B0=D0=BB=D1=8C=D0=BD=D0=B0=D1=8F=20=D0=BA=D0=BD=D0=BE?=
 =?UTF-8?q?=D0=BF=D0=BA=D0=B0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 frontend/todo_tk.py   |  2 +-
 frontend/user.py      | 12 ++++-----
 frontend/workspace.py | 58 +++++++++++++++++++++++++++++++------------
 3 files changed, 49 insertions(+), 23 deletions(-)

diff --git a/frontend/todo_tk.py b/frontend/todo_tk.py
index 0336afd..50a43e5 100644
--- a/frontend/todo_tk.py
+++ b/frontend/todo_tk.py
@@ -11,7 +11,7 @@ if "win" in sys.platform.lower():
 else:
     DEFAULT_URL = "http://0.0.0.0:8000"
 
-BASE_W = 580
+BASE_W = 600
 BASE_H = 400
 
 TITLE_APP = "ToDo Application"
diff --git a/frontend/user.py b/frontend/user.py
index 7c58714..588dac8 100644
--- a/frontend/user.py
+++ b/frontend/user.py
@@ -57,7 +57,7 @@ class ToDoList(object):
 
     def remove(self, index):
         """
-        Remove item at index from db
+        Remove item AT INDEX from db
         """
         item = self.items_[index]
         self.items_.remove(item)
@@ -85,10 +85,10 @@ class ToDoList(object):
 
     def dispose(self):
         print(f"To-do list id '{self.id}' is being disposed of...")
-        if "DEBUG" in os.environ:
-            return
         for item in self.items_:
             item.dispose()
+        if "DEBUG" in os.environ:
+            return
         self.user.lists_delete(self.id)
 
     def sync(self):
@@ -229,12 +229,12 @@ class User(UserApi):
 
     def removeUserList(self, id):
         """
-        Remove existing user to-do list from the serverreturns:
+        Remove existing user to-do list BY ID from the serverreturns:
         """
         to_remove = [item for item in self.lists_ if item.id == id][0]
         self.lists_.remove(to_remove)
-        if not ("DEBUG" in os.environ):
-            to_remove.dispose()
+        # if not ("DEBUG" in os.environ):
+        to_remove.dispose()
         return self.lists_
 
     def appendUserList(self, title):
diff --git a/frontend/workspace.py b/frontend/workspace.py
index 8a488bc..eaabd0a 100644
--- a/frontend/workspace.py
+++ b/frontend/workspace.py
@@ -82,7 +82,7 @@ class ToDoListWidget(tk.Frame):
         add = tk.Button(self, text="Добавить заметку", command=self.add_command)
         add.pack(side="top")
 
-        delete = tk.Button(self, text="Удалить лист", command=placeholder)
+        delete = tk.Button(self, text="Удалить лист", command=self.master.delete_list)
         delete.pack(side="top")
 
     def update(self, itemList=None):
@@ -106,6 +106,17 @@ class ToDoListWidget(tk.Frame):
 
 
 class WorkSpaceFrame(tk.Frame):
+    def delete_list(self, *args):
+        selection = self.listBox.curselection()
+        cur = selection[0]
+        self.user.removeUserList(self.lists[cur].id)
+        self.lists = self.user.fetchUserLists()
+        self.update_lists()
+        if len(self.lists) > 1:
+            self.listBox.selection_set(first=cur - 1)
+        elif len(self.lists) > 0:
+            self.listBox.selection_set(first=0)
+
     def __init__(self, user, master=None, url=None) -> None:
         """
         Функция инициаизации класса
@@ -154,16 +165,36 @@ class WorkSpaceFrame(tk.Frame):
         # add scroll bar to list box
         self.listBox.config(yscrollcommand=scrollbar.set)
 
-        # fill list box
+        # init list view
+        self.update_lists()
+
+        # canvas for todo lists
+        # canvas = tk.Canvas(self)
+        # canvas.pack(side="left", fill="both", expand=1)
+        # scrollbar = tk.Scrollbar(self, orient="vertical")
+        # scrollbar.config(command=canvas.yview)
+        # scrollbar.pack(side="left", fill="y")
+        # canvas.configure(yscrollcommand=scrollbar.set)
+
+        # todo lists
+        self.toDoList = ToDoListWidget(self)
+        # self.toDoList = ToDoListWidget(canvas)
+        self.toDoList.pack(side="left", fill="y")
+        # canvas.bind('<Configure>', lambda *argv: print(self.toDoList.winfo_height()))
+        # canvas.create_window((0,0), window=self.toDoList, anchor='nw')
+
+        # select list!
+        if len(self.lists) > 0:
+            self.listBox.selection_set(first=0)
+            self.listBox_selected()
+
+    def update_lists(self):
+        self.listBox.delete(0, "end")
         for item in self.lists:
             s = f"{str(item)}: {item.created_at.strftime('%Y-%m-%d %H:%M:%S')}"
             self.listBox.insert(tk.END, s)
         self.listBox.pack()
-        len(self.lists) > 0 and self.listBox.selection_set(first=0)
-
-        # todo lists
-        self.toToList = ToDoListWidget(self)
-        self.toToList.pack(side="left", fill="both", expand=1)
+        return len(self.lists)
 
     def add_list(self, *args):
         text = self.add_list_text.get(1.0, "end").strip()
@@ -174,18 +205,13 @@ class WorkSpaceFrame(tk.Frame):
         self.lists = self.user.fetchUserLists()
 
         # fill list box
-        self.listBox.delete(0, "end")
-        for item in self.lists:
-            s = f"{str(item)}: {item.created_at.strftime('%Y-%m-%d %H:%M:%S')}"
-            self.listBox.insert(tk.END, s)
-        self.listBox.pack()
-        len(self.lists) > 0 and self.listBox.selection_set(first=0)
+        self.update_lists()
+        len(self.lists) > 0 and self.listBox.selection_set(first=len(self.lists) - 1)
 
     def listBox_selected(self, *args):
-
-        self.toToList.clear()
+        self.toDoList.clear()
 
         selection = self.listBox.curselection()
         cur = selection[0]
 
-        self.toToList.fill(self.lists[cur])
+        self.toDoList.fill(self.lists[cur])

From 7afb99d3d0a7c6d71b59230e0e367c204ec0e207 Mon Sep 17 00:00:00 2001
From: Ivan <l.ivan.dev@outlook.com>
Date: Wed, 28 Apr 2021 18:08:07 +0300
Subject: [PATCH 7/7] =?UTF-8?q?=D0=94=D0=BE=D0=B1=D0=B0=D0=B2=D0=B8=D0=BB?=
 =?UTF-8?q?=20=D1=81=D0=BA=D1=80=D0=BE=D0=BB=D0=BB=D0=B1=D0=B0=D1=80=20?=
 =?UTF-8?q?=D0=B2=20=D0=BF=D1=80=D0=B5=D0=B4=D1=81=D1=82=D0=B0=D0=B2=D0=BB?=
 =?UTF-8?q?=D0=B5=D0=BD=D0=B8=D0=B5=20=D0=B0=D0=B9=D1=82=D0=B5=D0=BC=D0=BE?=
 =?UTF-8?q?=D0=B2?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 frontend/workspace.py | 24 +++++++++++++-----------
 1 file changed, 13 insertions(+), 11 deletions(-)

diff --git a/frontend/workspace.py b/frontend/workspace.py
index eaabd0a..73875e7 100644
--- a/frontend/workspace.py
+++ b/frontend/workspace.py
@@ -61,8 +61,9 @@ class ToDoItemWidget(tk.Frame):
 
 
 class ToDoListWidget(tk.Frame):
-    def __init__(self, *args, **argv):
+    def __init__(self, *args, delete_list, **argv):
         super().__init__(*args, **argv)
+        self.delete_list = delete_list
 
     def fill(self, itemList):
 
@@ -82,7 +83,7 @@ class ToDoListWidget(tk.Frame):
         add = tk.Button(self, text="Добавить заметку", command=self.add_command)
         add.pack(side="top")
 
-        delete = tk.Button(self, text="Удалить лист", command=self.master.delete_list)
+        delete = tk.Button(self, text="Удалить лист", command=self.delete_list)
         delete.pack(side="top")
 
     def update(self, itemList=None):
@@ -169,19 +170,20 @@ class WorkSpaceFrame(tk.Frame):
         self.update_lists()
 
         # canvas for todo lists
-        # canvas = tk.Canvas(self)
-        # canvas.pack(side="left", fill="both", expand=1)
-        # scrollbar = tk.Scrollbar(self, orient="vertical")
-        # scrollbar.config(command=canvas.yview)
-        # scrollbar.pack(side="left", fill="y")
-        # canvas.configure(yscrollcommand=scrollbar.set)
+        canvas = tk.Canvas(self)
+        canvas.pack(side="left", fill="both", expand=1)
+        scrollbar = tk.Scrollbar(self, orient="vertical")
+        scrollbar.config(command=canvas.yview)
+        scrollbar.pack(side="left", fill="y")
+        canvas.configure(yscrollcommand=scrollbar.set)
 
         # todo lists
-        self.toDoList = ToDoListWidget(self)
+        self.toDoList = ToDoListWidget(self, delete_list=self.delete_list)
+        self.toDoList.grid_propagate(True)
         # self.toDoList = ToDoListWidget(canvas)
         self.toDoList.pack(side="left", fill="y")
-        # canvas.bind('<Configure>', lambda *argv: print(self.toDoList.winfo_height()))
-        # canvas.create_window((0,0), window=self.toDoList, anchor='nw')
+        canvas.bind("<Configure>", lambda *argv: canvas.configure(scrollregion=canvas.bbox("all")))
+        canvas.create_window((0, 0), window=self.toDoList, anchor="nw")
 
         # select list!
         if len(self.lists) > 0: