feat: creatives and external channels

src/usecase/target_channel/update_target_chan_permissions.py

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+import logging
+from typing import TYPE_CHECKING
+
+from src import domain, dto
+
+if TYPE_CHECKING:
+    from .. import Usecase
+
+log = logging.getLogger(__name__)
+
+
+async def update_target_chan_permissions(self: 'Usecase', input: dto.UpdateTargetChanPermissionsInput) -> None:
+    missing_permissions = []
+    if not input.permissions.can_invite_users:
+        missing_permissions.append('Создание инвайт-ссылок')
+    if not input.permissions.can_restrict_members:
+        missing_permissions.append('Управление пользователями')
+
+    async with self.database.transaction():
+        channel = await self.database.get_target_channel(user_id, telegram_id=input.telegram_id)
+        if not channel:
+            log.warning(f'Target channel {input.telegram_id} not found when permissions changed')
+            raise domain.TargetChannelNotFound()
+
+        if not missing_permissions:
+            if not channel.is_active:
+                channel.is_active = True
+                await self.database.update_target_channel(channel)
+
+                await self.telegram_writer.send_message(
+                    f'✅ Канал "{input.chat_title}" был активирован.\n\nВсе необходимые права боту предоставлены!',
+                    chat_id=input.user_telegram_id,
+                )
+                log.info(f'Target channel {input.telegram_id} reactivated - all permissions granted')
+            return
+
+        if channel.is_active:
+            channel.is_active = False
+            await self.database.update_target_channel(channel)
+
+            missed_permissions = '\n'.join(f'• {p}' for p in missing_permissions)
+            await self.telegram_writer.send_message(
+                f'⚠️ Канал "{input.chat_title}" был деактивирован.\
+                \n\nБоту убрали необходимые права:\n{missed_permissions}',
+                chat_id=input.user_telegram_id,
+            )
+            log.warning(
+                f'Target channel {input.telegram_id} deactivated due to missing permissions: {missing_permissions}'
+            )