Changes to endpoints so they allow to only get context and then the exercises as well as tidying up a bit

app/services/abc/exam/exercises.py

@@ -0,0 +1,33 @@
+from abc import ABC, abstractmethod
+from typing import Dict, Any
+
+
+class IExerciseService(ABC):
+
+    @abstractmethod
+    async def generate_multiple_choice(self, args: Dict, exercise_id: int) -> Dict[str, Any]:
+        pass
+
+    @abstractmethod
+    async def generate_blank_space_text(self, args: Dict, exercise_id: int) -> Dict[str, Any]:
+        pass
+
+    @abstractmethod
+    async def generate_reading_passage_utas(self, args: Dict, exercise_id: int) -> Dict[str, Any]:
+        pass
+
+    @abstractmethod
+    async def generate_writing_task(self, args: Dict, exercise_id: int) -> Dict[str, Any]:
+        pass
+
+    @abstractmethod
+    async def generate_speaking_task(self, args: Dict, exercise_id: int) -> Dict[str, Any]:
+        pass
+
+    @abstractmethod
+    async def generate_reading_task(self, args: Dict, exercise_id: int) -> Dict[str, Any]:
+        pass
+
+    @abstractmethod
+    async def generate_listening_task(self, args: Dict, exercise_id: int) -> Dict[str, Any]:
+        pass