commit

config.example.toml

@@ -2,6 +2,10 @@
 token = "1234567890:ABCdefGHIjklMNOpqrsTUVwxyz"
 creator_id = 123456789
 
+[security]
+test_hash_salt = "your_secret_salt_here_change_in_production"
+test_hash_length = 16
+
 [database]
 host = "localhost"
 port = 5432

main.py

@@ -1,6 +0,0 @@
-def main():
-    print("Hello from trudex!")
-
-
-if __name__ == "__main__":
-    main()

src/trudex/application/__main__.py

@@ -78,10 +78,12 @@ async def main() -> None:
     router.message.middleware(RejectNotAdminMiddleware())
     router.message.middleware(RejectNotCreatorMiddleware())
     
-    container = make_async_container(DatabaseProvider())
+    container = make_async_container(DatabaseProvider(), context={Bot: bot, Config: config})
     setup_dialogs(dp)
     setup_dishka(container, dp, auto_inject=True)
 
+    bott = await container.get(Bot)
+    
     async with container() as request_container:
         user_repo = await request_container.get(UserRepository)
         await setup_bot_commands(bot, config, user_repo)

src/trudex/application/bot/admin_dialogs/states.py

@@ -14,7 +14,9 @@ class AdminUsersSG(StatesGroup):
 class AdminTestsSG(StatesGroup):
     tests_list = State()
     test_detail = State()
+    share_test = State()
     edit_password = State()
+    edit_attempts = State()
     edit_group = State()
     edit_expires = State()
 

src/trudex/application/bot/admin_dialogs/tests.py

@@ -1,5 +1,6 @@
 from datetime import date, datetime
 
+from aiogram import Bot
 from aiogram.types import CallbackQuery, Message
 from aiogram_dialog import Dialog, DialogManager, StartMode, Window
 from aiogram_dialog.widgets.input import MessageInput
@@ -14,6 +15,8 @@ from trudex.application.bot.admin_dialogs.states import (AdminMenuSG,
 from trudex.infrastructure.database.dao.group import GroupDAO
 from trudex.infrastructure.database.dao.test import TestDAO
 from trudex.infrastructure.database.repo.test import TestRepository
+from trudex.infrastructure.utils.config import Config
+from trudex.infrastructure.utils.test_id_to_hash import generate_alpha_id
 
 
 @inject
@@ -57,6 +60,7 @@ async def get_test_detail(test_dao: FromDishka[TestDAO], test_repo: FromDishka[T
     
     status = "🟢 Активен" if test.is_active else "🔴 Деактивирован"
     password_str = f"🔒 {test.password}" if test.password else "🔓 Без пароля"
+    attempts_str = f"🔄 {test.attempts}" if test.attempts else "♾️ Без ограничений"
     expires_str = test.expires_at.strftime("%d.%m.%Y %H:%M") if test.expires_at else "♾️ Без срока"
     group_str = f"🎓 Группа {test.for_group}" if test.for_group else "👥 Для всех"
     
@@ -67,6 +71,7 @@ async def get_test_detail(test_dao: FromDishka[TestDAO], test_repo: FromDishka[T
         f"<b>Статус:</b> {status}\n"
         f"<b>Вопросов:</b> {questions_count}\n"
         f"{password_str}\n"
+        f"<b>Попыток:</b> {attempts_str}\n"
         f"{expires_str}\n"
         f"{group_str}\n\n"
         f"<b>Создан:</b> {test.created_at.strftime('%d.%m.%Y %H:%M') if test.created_at else '—'}"
@@ -101,10 +106,38 @@ async def on_back_to_list(_callback: CallbackQuery, _button: Button, manager: Di
     await manager.switch_to(AdminTestsSG.tests_list)
 
 
+async def on_share_test(_callback: CallbackQuery, _button: Button, manager: DialogManager):
+    await manager.switch_to(AdminTestsSG.share_test)
+
+
+@inject
+async def get_share_link(dialog_manager: DialogManager, config: FromDishka[Config], bot: FromDishka[Bot], **_kwargs):
+    test_id = dialog_manager.dialog_data.get("selected_test_id")
+    
+    if not test_id:
+        return {"share_link": "Ошибка: тест не найден"}
+    
+    test_hash = generate_alpha_id(
+        test_id, 
+        config.security.test_hash_salt,
+        config.security.test_hash_length
+    )
+    
+    bot_info = await bot.get_me()
+    bot_username = bot_info.username or "your_bot"
+    share_link = f"https://t.me/{bot_username}?start={test_hash}"
+    
+    return {"share_link": share_link}
+
+
 async def on_edit_password(_callback: CallbackQuery, _button: Button, manager: DialogManager):
     await manager.switch_to(AdminTestsSG.edit_password)
 
 
+async def on_edit_attempts(_callback: CallbackQuery, _button: Button, manager: DialogManager):
+    await manager.switch_to(AdminTestsSG.edit_attempts)
+
+
 async def on_edit_group(_callback: CallbackQuery, _button: Button, manager: DialogManager):
     await manager.switch_to(AdminTestsSG.edit_group)
 
@@ -146,6 +179,50 @@ async def on_remove_password(_callback: CallbackQuery, _button: Button, manager:
     await manager.switch_to(AdminTestsSG.test_detail)
 
 
+@inject
+async def on_attempts_input_edit(message: Message, _widget: MessageInput, manager: DialogManager, test_dao: FromDishka[TestDAO]):
+    test_id = manager.dialog_data.get("selected_test_id")
+    if not test_id:
+        await message.answer("❌ Тест не найден")
+        return
+    
+    if not message.text:
+        await message.answer("❌ Количество попыток не может быть пустым")
+        return
+    
+    attempts_str = message.text.strip()
+    
+    if not attempts_str.isdigit():
+        await message.answer("❌ Количество попыток должно быть числом")
+        return
+    
+    attempts = int(attempts_str)
+    
+    if attempts < 1:
+        await message.answer("❌ Количество попыток должно быть больше 0")
+        return
+    
+    if attempts > 100:
+        await message.answer("❌ Количество попыток не может быть больше 100")
+        return
+    
+    await test_dao.update(test_id, attempts=attempts)
+    await message.answer("✅ Количество попыток обновлено")
+    await manager.switch_to(AdminTestsSG.test_detail)
+
+
+@inject
+async def on_remove_attempts(_callback: CallbackQuery, _button: Button, manager: DialogManager, test_dao: FromDishka[TestDAO]):
+    test_id = manager.dialog_data.get("selected_test_id")
+    if not test_id:
+        await _callback.answer("❌ Тест не найден")
+        return
+    
+    await test_dao.update(test_id, attempts=None)
+    await _callback.answer("✅ Ограничение попыток удалено")
+    await manager.switch_to(AdminTestsSG.test_detail)
+
+
 @inject
 async def get_groups_for_edit(dialog_manager: DialogManager, group_dao: FromDishka[GroupDAO], **_kwargs):
     groups = await group_dao.get_all()
@@ -242,7 +319,9 @@ tests_dialog = Dialog(
                 id="toggle_active",
                 on_click=on_toggle_active
             ),
+            Button(Const("🔗 Поделиться"), id="share", on_click=on_share_test),
             Button(Const("🔑 Изменить пароль"), id="edit_password", on_click=on_edit_password),
+            Button(Const("🔄 Изменить попытки"), id="edit_attempts", on_click=on_edit_attempts),
             Button(Const("👥 Изменить группу"), id="edit_group", on_click=on_edit_group),
             Button(Const("📅 Изменить срок"), id="edit_expires", on_click=on_edit_expires),
             Button(Const("◀️ Назад"), id="back", on_click=on_back_to_list),
@@ -250,6 +329,13 @@ tests_dialog = Dialog(
         state=AdminTestsSG.test_detail,
         getter=get_test_detail,
     ),
+    Window(
+        Const("<b>🔗 Поделиться тестом</b>\n\n📎 <b>Ссылка на тест:</b>"),
+        Format("\n<code>{share_link}</code>\n\n💡 Отправьте эту ссылку пользователям для прохождения теста"),
+        Button(Const("◀️ Назад"), id="back", on_click=on_back_to_list),
+        state=AdminTestsSG.share_test,
+        getter=get_share_link,
+    ),
     Window(
         Const("<b>🔑 Изменение пароля</b>\n\n💬 <b>Введите новый пароль</b> или удалите текущий:\n<i>(максимум 255 символов)</i>"),
         MessageInput(on_password_input),
@@ -259,6 +345,15 @@ tests_dialog = Dialog(
         ),
         state=AdminTestsSG.edit_password,
     ),
+    Window(
+        Const("<b>🔄 Изменение количества попыток</b>\n\n🔢 <b>Введите новое количество попыток</b> (1-100) или удалите ограничение:"),
+        MessageInput(on_attempts_input_edit),
+        Column(
+            Button(Const("🗑 Без ограничений"), id="remove_attempts", on_click=on_remove_attempts),
+            Button(Const("◀️ Назад"), id="back", on_click=on_back_to_list),
+        ),
+        state=AdminTestsSG.edit_attempts,
+    ),
     Window(
         Const("<b>👥 Изменение группы</b>\n\n🎓 <b>Выберите группу</b> или удалите привязку:"),
         ScrollingGroup(

src/trudex/application/bot/creator_dialogs/create_test.py

@@ -70,25 +70,42 @@ async def on_password_input(message: Message, _widget: MessageInput, manager: Di
         return
     
     manager.dialog_data["password"] = password
-    
-    groups = await group_dao.get_all()
-    
-    if len(groups) == 0:
-        manager.dialog_data["for_group"] = None
-        await manager.switch_to(CreateTestSG.confirm_test_info)
-    else:
-        await manager.switch_to(CreateTestSG.input_expires_at)
+    await manager.switch_to(CreateTestSG.input_attempts)
 
 
 @inject
 async def on_skip_password(_callback: CallbackQuery, _button: Button, manager: DialogManager, group_dao: FromDishka[GroupDAO]):
     manager.dialog_data["password"] = None
-    groups = await group_dao.get_all()
+    await manager.switch_to(CreateTestSG.input_attempts)
 
-    if len(groups) == 0:
-        manager.dialog_data["for_group"] = None
-        await manager.switch_to(CreateTestSG.confirm_test_info)
-    else:
+
+async def on_attempts_input(message: Message, _widget: MessageInput, manager: DialogManager):
+    if not message.text:
+        await message.answer("❌ Количество попыток не может быть пустым")
+        return
+    
+    attempts_str = message.text.strip()
+    
+    if not attempts_str.isdigit():
+        await message.answer("❌ Количество попыток должно быть числом")
+        return
+    
+    attempts = int(attempts_str)
+    
+    if attempts < 1:
+        await message.answer("❌ Количество попыток должно быть больше 0")
+        return
+    
+    if attempts > 100:
+        await message.answer("❌ Количество попыток не может быть больше 100")
+        return
+    
+    manager.dialog_data["attempts"] = attempts
+    await manager.switch_to(CreateTestSG.input_expires_at)
+
+
+async def on_skip_attempts(_callback: CallbackQuery, _button: Button, manager: DialogManager):
+    manager.dialog_data["attempts"] = None
     await manager.switch_to(CreateTestSG.input_expires_at)
 
 
@@ -125,10 +142,12 @@ async def get_test_info(dialog_manager: DialogManager, **_kwargs):
     title = dialog_manager.dialog_data.get("title", "—")
     description = dialog_manager.dialog_data.get("description", "—")
     password = dialog_manager.dialog_data.get("password")
+    attempts = dialog_manager.dialog_data.get("attempts")
     expires_at = dialog_manager.dialog_data.get("expires_at")
     for_group = dialog_manager.dialog_data.get("for_group")
     
     password_str = f"🔒 {password}" if password else "Без пароля"
+    attempts_str = f"🔄 {attempts}" if attempts else "♾️ Без ограничений"
     expires_str = expires_at.strftime("%d.%m.%Y") if expires_at else "Без срока"
     group_str = str(for_group) if for_group else "Для всех"
     
@@ -138,6 +157,7 @@ async def get_test_info(dialog_manager: DialogManager, **_kwargs):
             f"<b>Название:</b> {title}\n"
             f"<b>Описание:</b> {description}\n"
             f"<b>Пароль:</b> {password_str}\n"
+            f"<b>Попыток:</b> {attempts_str}\n"
             f"<b>Истекает:</b> {expires_str}\n"
             f"<b>Для группы:</b> {group_str}"
         )
@@ -147,8 +167,10 @@ async def get_test_info(dialog_manager: DialogManager, **_kwargs):
 @inject
 async def on_confirm_test(_callback: CallbackQuery, _button: Button, manager: DialogManager, test_dao: FromDishka[TestDAO]):
     title = manager.dialog_data.get("title")
+    assert isinstance(title, str)
     description = manager.dialog_data.get("description")
     password = manager.dialog_data.get("password")
+    attempts = manager.dialog_data.get("attempts")
     expires_at = manager.dialog_data.get("expires_at")
     for_group = manager.dialog_data.get("for_group")
     
@@ -156,6 +178,7 @@ async def on_confirm_test(_callback: CallbackQuery, _button: Button, manager: Di
         title=title,
         description=description,
         password=password,
+        attempts=attempts,
         expires_at=expires_at,
         for_group=for_group,
     )
@@ -361,6 +384,7 @@ async def on_save_question(
     test_repo: FromDishka[TestRepository],
 ):
     test_id = manager.dialog_data.get("test_id")
+    assert isinstance(test_id, int)
     current_question = manager.dialog_data.get("current_question", {})
     current_options = manager.dialog_data.get("current_options", [])
     
@@ -443,6 +467,12 @@ create_test_dialog = Dialog(
         Button(Const("⏭️ Без пароля"), id="skip_password", on_click=on_skip_password),
         state=CreateTestSG.input_password,
     ),
+    Window(
+        Const("<b>🔄 Количество попыток</b>\n\n🔢 <b>Введите количество попыток</b> (1-100) или пропустите для неограниченного количества:"),
+        MessageInput(on_attempts_input),
+        Button(Const("⏭️ Без ограничений"), id="skip_attempts", on_click=on_skip_attempts),
+        state=CreateTestSG.input_attempts,
+    ),
     Window(
         Const("<b>📅 Срок действия</b>\n\n🗓 <b>Выберите дату истечения теста</b> или пропустите:"),
         Calendar(id="calendar", on_click=on_date_selected),

src/trudex/application/bot/creator_dialogs/groups.py

@@ -118,6 +118,8 @@ async def get_delete_confirm_data(dialog_manager: DialogManager, **_kwargs):
 async def on_confirm_delete(_callback: CallbackQuery, _button: Button, manager: DialogManager, group_dao: FromDishka[GroupDAO]):
     group_id = manager.dialog_data.get("delete_group_id")
 
+    assert isinstance(group_id, int)
+    
     await group_dao.delete(group_id)
     
     manager.dialog_data["success_message"] = "✅ Группа удалена"

src/trudex/application/bot/creator_dialogs/states.py

@@ -15,7 +15,9 @@ class CreatorUsersSG(StatesGroup):
 class CreatorTestsSG(StatesGroup):
     tests_list = State()
     test_detail = State()
+    share_test = State()
     edit_password = State()
+    edit_attempts = State()
     edit_group = State()
     edit_expires = State()
 
@@ -36,6 +38,7 @@ class CreateTestSG(StatesGroup):
     input_title = State()
     input_description = State()
     input_password = State()
+    input_attempts = State()
     input_expires_at = State()
     input_for_group = State()
     confirm_test_info = State()

src/trudex/application/bot/creator_dialogs/tests.py

@@ -1,5 +1,6 @@
 from datetime import date, datetime
 
+from aiogram import Bot
 from aiogram.types import CallbackQuery, Message
 from aiogram_dialog import Dialog, DialogManager, StartMode, Window
 from aiogram_dialog.widgets.input import MessageInput
@@ -15,6 +16,8 @@ from trudex.application.bot.creator_dialogs.states import (CreateTestSG,
 from trudex.infrastructure.database.dao.group import GroupDAO
 from trudex.infrastructure.database.dao.test import TestDAO
 from trudex.infrastructure.database.repo.test import TestRepository
+from trudex.infrastructure.utils.config import Config
+from trudex.infrastructure.utils.test_id_to_hash import generate_alpha_id
 
 
 @inject
@@ -58,6 +61,7 @@ async def get_test_detail(test_dao: FromDishka[TestDAO], test_repo: FromDishka[T
     
     status = "🟢 Активен" if test.is_active else "🔴 Деактивирован"
     password_str = f"🔒 {test.password}" if test.password else "🔓 Без пароля"
+    attempts_str = f"🔄 {test.attempts}" if test.attempts else "♾️ Без ограничений"
     expires_str = test.expires_at.strftime("%d.%m.%Y %H:%M") if test.expires_at else "♾️ Без срока"
     group_str = f"🎓 Группа {test.for_group}" if test.for_group else "👥 Для всех"
     
@@ -68,6 +72,7 @@ async def get_test_detail(test_dao: FromDishka[TestDAO], test_repo: FromDishka[T
         f"<b>Статус:</b> {status}\n"
         f"<b>Вопросов:</b> {questions_count}\n"
         f"{password_str}\n"
+        f"<b>Попыток:</b> {attempts_str}\n"
         f"{expires_str}\n"
         f"{group_str}\n\n"
         f"<b>Создан:</b> {test.created_at.strftime('%d.%m.%Y %H:%M') if test.created_at else '—'}"
@@ -102,10 +107,38 @@ async def on_back_to_list(_callback: CallbackQuery, _button: Button, manager: Di
     await manager.switch_to(CreatorTestsSG.tests_list)
 
 
+async def on_share_test(_callback: CallbackQuery, _button: Button, manager: DialogManager):
+    await manager.switch_to(CreatorTestsSG.share_test)
+
+
+@inject
+async def get_share_link(dialog_manager: DialogManager, config: FromDishka[Config], **_kwargs):
+    test_id = dialog_manager.dialog_data.get("selected_test_id")
+    if not test_id:
+        return {"share_link": "Ошибка: тест не найден"}
+    
+    test_hash = generate_alpha_id(
+        test_id, 
+        config.security.test_hash_salt,
+        config.security.test_hash_length
+    )
+    bot = Bot(config.bot.token)
+    bot_info = await bot.get_me()
+    await bot.session.close()
+    bot_username = bot_info.username or "your_bot"
+    share_link = f"https://t.me/{bot_username}?start={test_hash}"
+    
+    return {"share_link": share_link}
+
+
 async def on_edit_password(_callback: CallbackQuery, _button: Button, manager: DialogManager):
     await manager.switch_to(CreatorTestsSG.edit_password)
 
 
+async def on_edit_attempts(_callback: CallbackQuery, _button: Button, manager: DialogManager):
+    await manager.switch_to(CreatorTestsSG.edit_attempts)
+
+
 async def on_edit_group(_callback: CallbackQuery, _button: Button, manager: DialogManager):
     await manager.switch_to(CreatorTestsSG.edit_group)
 
@@ -147,6 +180,50 @@ async def on_remove_password(_callback: CallbackQuery, _button: Button, manager:
     await manager.switch_to(CreatorTestsSG.test_detail)
 
 
+@inject
+async def on_attempts_input_edit(message: Message, _widget: MessageInput, manager: DialogManager, test_dao: FromDishka[TestDAO]):
+    test_id = manager.dialog_data.get("selected_test_id")
+    if not test_id:
+        await message.answer("❌ Тест не найден")
+        return
+    
+    if not message.text:
+        await message.answer("❌ Количество попыток не может быть пустым")
+        return
+    
+    attempts_str = message.text.strip()
+    
+    if not attempts_str.isdigit():
+        await message.answer("❌ Количество попыток должно быть числом")
+        return
+    
+    attempts = int(attempts_str)
+    
+    if attempts < 1:
+        await message.answer("❌ Количество попыток должно быть больше 0")
+        return
+    
+    if attempts > 100:
+        await message.answer("❌ Количество попыток не может быть больше 100")
+        return
+    
+    await test_dao.update(test_id, attempts=attempts)
+    await message.answer("✅ Количество попыток обновлено")
+    await manager.switch_to(CreatorTestsSG.test_detail)
+
+
+@inject
+async def on_remove_attempts(_callback: CallbackQuery, _button: Button, manager: DialogManager, test_dao: FromDishka[TestDAO]):
+    test_id = manager.dialog_data.get("selected_test_id")
+    if not test_id:
+        await _callback.answer("❌ Тест не найден")
+        return
+    
+    await test_dao.update(test_id, attempts=None)
+    await _callback.answer("✅ Ограничение попыток удалено")
+    await manager.switch_to(CreatorTestsSG.test_detail)
+
+
 @inject
 async def get_groups_for_edit(dialog_manager: DialogManager, group_dao: FromDishka[GroupDAO], **_kwargs):
     groups = await group_dao.get_all()
@@ -243,7 +320,9 @@ tests_dialog = Dialog(
                 id="toggle_active",
                 on_click=on_toggle_active
             ),
+            Button(Const("🔗 Поделиться"), id="share", on_click=on_share_test),
             Button(Const("🔑 Изменить пароль"), id="edit_password", on_click=on_edit_password),
+            Button(Const("🔄 Изменить попытки"), id="edit_attempts", on_click=on_edit_attempts),
             Button(Const("👥 Изменить группу"), id="edit_group", on_click=on_edit_group),
             Button(Const("📅 Изменить срок"), id="edit_expires", on_click=on_edit_expires),
             Button(Const("◀️ Назад"), id="back", on_click=on_back_to_list),
@@ -251,6 +330,13 @@ tests_dialog = Dialog(
         state=CreatorTestsSG.test_detail,
         getter=get_test_detail,
     ),
+    Window(
+        Const("<b>🔗 Поделиться тестом</b>\n\n📎 <b>Ссылка на тест:</b>"),
+        Format("\n<code>{share_link}</code>\n\n💡 Отправьте эту ссылку пользователям для прохождения теста"),
+        Button(Const("◀️ Назад"), id="back", on_click=on_back_to_list),
+        state=CreatorTestsSG.share_test,
+        getter=get_share_link,
+    ),
     Window(
         Const("<b>🔑 Изменение пароля</b>\n\n💬 <b>Введите новый пароль</b> или удалите текущий:\n<i>(максимум 255 символов)</i>"),
         MessageInput(on_password_input),
@@ -260,6 +346,15 @@ tests_dialog = Dialog(
         ),
         state=CreatorTestsSG.edit_password,
     ),
+    Window(
+        Const("<b>🔄 Изменение количества попыток</b>\n\n🔢 <b>Введите новое количество попыток</b> (1-100) или удалите ограничение:"),
+        MessageInput(on_attempts_input_edit),
+        Column(
+            Button(Const("🗑 Без ограничений"), id="remove_attempts", on_click=on_remove_attempts),
+            Button(Const("◀️ Назад"), id="back", on_click=on_back_to_list),
+        ),
+        state=CreatorTestsSG.edit_attempts,
+    ),
     Window(
         Const("<b>👥 Изменение группы</b>\n\n🎓 <b>Выберите группу</b> или удалите привязку:"),
         ScrollingGroup(

src/trudex/infrastructure/di.py

@@ -19,10 +19,6 @@ from trudex.infrastructure.utils.config import Config
 
 
 class DatabaseProvider(Provider):
-    @provide(scope=Scope.APP)
-    def get_config(self) -> Config:
-        return Config.from_toml("config.toml")
-    
     @provide(scope=Scope.APP)
     def get_session_maker(self, config: Config) -> async_sessionmaker[AsyncSession]:
         return new_session_maker(config.database.url)

src/trudex/infrastructure/utils/config.py

@@ -10,6 +10,12 @@ class BotConfig:
     creator_id: int
 
 
+@dataclass
+class SecurityConfig:
+    test_hash_salt: str
+    test_hash_length: int = 16
+
+
 @dataclass
 class DatabaseConfig:
     host: str
@@ -27,6 +33,7 @@ class DatabaseConfig:
 class Config:
     bot: BotConfig
     database: DatabaseConfig
+    security: SecurityConfig
     
     @classmethod
     def from_toml(cls, path: str | Path) -> Self:
@@ -35,6 +42,7 @@ class Config:
         
         bot_data: dict[str, str | int] = data["bot"]
         db_data: dict[str, str | int] = data["database"]
+        security_data: dict[str, str | int] = data["security"]
         
         return cls(
             bot=BotConfig(
@@ -47,5 +55,9 @@ class Config:
                 user=str(db_data["user"]),
                 password=str(db_data["password"]),
                 database=str(db_data["database"])
+            ),
+            security=SecurityConfig(
+                test_hash_salt=str(security_data["test_hash_salt"]),
+                test_hash_length=int(security_data.get("test_hash_length", 16))
             )
         )

src/trudex/infrastructure/utils/test_id_to_hash.py

@@ -0,0 +1,25 @@
+import hashlib
+import hmac
+import string
+
+
+def generate_alpha_id(n: int, secret_key: str, length: int = 16) -> str:
+    data = str(n).encode('utf-8')
+    key = secret_key.encode('utf-8')
+    
+    digest = hmac.new(key, data, hashlib.sha256).digest()
+    num = int.from_bytes(digest, byteorder='big')
+    
+    alphabet = string.ascii_letters
+    result = []
+    
+    while num > 0:
+        num, rem = divmod(num, 52)
+        result.append(alphabet[rem])
+        
+    encoded = "".join(result)
+    
+    if len(encoded) < length:
+        encoded = encoded.ljust(length, alphabet[0])
+        
+    return encoded[:length]