Files
MAIA/backend/modules/nlp/api.py
2025-04-20 23:52:29 +02:00

103 lines
4.9 KiB
Python

# modules/nlp/api.py
from fastapi import APIRouter, Depends, HTTPException
from sqlalchemy.orm import Session
from typing import List
from core.database import get_db
from modules.auth.dependencies import get_current_user
from modules.auth.models import User
from modules.nlp.service import process_request, ask_ai
# Import the response schema
from modules.nlp.schemas import ProcessCommandRequest, ProcessCommandResponse
from modules.calendar.service import create_calendar_event, get_calendar_events, update_calendar_event, delete_calendar_event
# Import the CalendarEvent *model* for type hinting
from modules.calendar.models import CalendarEvent
# Import the CalendarEvent Pydantic schemas for data validation
from modules.calendar.schemas import CalendarEventCreate, CalendarEventUpdate
router = APIRouter(prefix="/nlp", tags=["nlp"])
# Helper to format calendar events (expects list of CalendarEvent models)
def format_calendar_events(events: List[CalendarEvent]) -> List[str]:
if not events:
return ["You have no events matching that criteria."]
formatted = ["Here are the events:"]
for event in events:
# Access attributes directly from the model instance
start_str = event.start.strftime("%Y-%m-%d %H:%M") if event.start else "No start time"
end_str = event.end.strftime("%H:%M") if event.end else ""
title = event.title or "Untitled Event"
formatted.append(f"- {title} ({start_str}{' - ' + end_str if end_str else ''})")
return formatted
# Update the response model for the endpoint
@router.post("/process-command", response_model=ProcessCommandResponse)
def process_command(request_data: ProcessCommandRequest, current_user: User = Depends(get_current_user), db: Session = Depends(get_db)):
"""
Process the user command, execute the action, and return user-friendly responses.
"""
user_input = request_data.user_input
command_data = process_request(user_input)
intent = command_data["intent"]
params = command_data["params"]
response_text = command_data["response_text"]
responses = [response_text] # Start with the initial response
if intent == "error":
raise HTTPException(status_code=400, detail=response_text)
if intent == "clarification_needed" or intent == "unknown":
return ProcessCommandResponse(responses=responses)
try:
match intent:
case "ask_ai":
ai_answer = ask_ai(**params)
responses.append(ai_answer)
return ProcessCommandResponse(responses=responses)
case "get_calendar_events":
# get_calendar_events returns List[CalendarEvent models]
events: List[CalendarEvent] = get_calendar_events(db, current_user.id, **params)
responses.extend(format_calendar_events(events))
return ProcessCommandResponse(responses=responses)
case "add_calendar_event":
# Validate input with Pydantic schema
event_data = CalendarEventCreate(**params)
created_event = create_calendar_event(db, current_user.id, event_data)
start_str = created_event.start.strftime("%Y-%m-%d %H:%M") if created_event.start else "No start time"
title = created_event.title or "Untitled Event"
responses.append(f"Added: {title} starting at {start_str}.")
return ProcessCommandResponse(responses=responses)
case "update_calendar_event":
event_id = params.pop('event_id', None)
if event_id is None:
raise HTTPException(status_code=400, detail="Event ID is required for update.")
# Validate input with Pydantic schema
event_data = CalendarEventUpdate(**params)
updated_event = update_calendar_event(db, current_user.id, event_id, event_data=event_data)
title = updated_event.title or "Untitled Event"
responses.append(f"Updated event ID {updated_event.id}: {title}.")
return ProcessCommandResponse(responses=responses)
case "delete_calendar_event":
event_id = params.get('event_id')
if event_id is None:
raise HTTPException(status_code=400, detail="Event ID is required for delete.")
delete_calendar_event(db, current_user.id, event_id)
responses.append(f"Deleted event ID {event_id}.")
return ProcessCommandResponse(responses=responses)
case _:
print(f"Warning: Unhandled intent '{intent}' reached api.py match statement.")
return ProcessCommandResponse(responses=responses)
except HTTPException as http_exc:
raise http_exc
except Exception as e:
print(f"Error executing intent '{intent}': {e}")
return ProcessCommandResponse(responses=["Sorry, I encountered an error while trying to perform that action."])