from __future__ import annotations

from fastapi import APIRouter, Depends

from app.core.auth import require_user
from app.models.user import User
from app.schemas.study import StudyRequestAnalysis, StudyRequestAnalyzeRequest
from app.services.study_request_analyzer import analyze_study_request


router = APIRouter()


@router.post("/analyze-request", response_model=StudyRequestAnalysis,
             summary="Analyze a study request",
             description="Parse a natural-language study request and extract exam, subject, topic, goal, time, and level. Used in onboarding.")
def analyze_request(
    payload: StudyRequestAnalyzeRequest,
    _current_user: User = Depends(require_user),
) -> StudyRequestAnalysis:
    # Auth required — anonymous callers can otherwise spam this and exhaust
    # the parser/AI budget. Onboarding already happens behind /login or /signup,
    # so the frontend always holds a JWT by the time it calls this.
    result = analyze_study_request(payload.raw_text, payload.syllabus_text)
    return StudyRequestAnalysis(**result)