"""FastAPI router for the lightweight Memory System API."""
from __future__ import annotations

from fastapi import APIRouter, Depends, HTTPException, Query, status

from .auth import verify_api_key
from .schemas import MessageIngestRequest, SearchRequest, SessionUserRequest
from .service import MemorySystemService


router = APIRouter(
    prefix="/memory-system",
    tags=["memory-system"],
    dependencies=[Depends(verify_api_key)],
)


def get_service() -> MemorySystemService:
    return MemorySystemService()


@router.get("/health")
async def health(service: MemorySystemService = Depends(get_service)):
    return await service.health()


@router.post("/messages")
async def ingest_messages(request: MessageIngestRequest, service: MemorySystemService = Depends(get_service)):
    try:
        return await service.ingest_messages(request)
    except ValueError as exc:
        raise HTTPException(status_code=status.HTTP_422_UNPROCESSABLE_ENTITY, detail=str(exc)) from exc


@router.post("/sessions/{session_id}/commit")
async def commit_session(
    session_id: str,
    request: SessionUserRequest,
    service: MemorySystemService = Depends(get_service),
):
    return await service.commit_session(request.user_id, session_id)


@router.post("/sessions/{session_id}/extract")
async def extract_session(
    session_id: str,
    request: SessionUserRequest,
    service: MemorySystemService = Depends(get_service),
):
    return await service.extract_session(request.user_id, session_id)


@router.get("/openviking/tasks/{task_id}")
async def get_openviking_task(
    task_id: str,
    user_id: str = Query(min_length=1),
    service: MemorySystemService = Depends(get_service),
):
    return await service.get_openviking_task(user_id, task_id)


@router.post("/search")
async def search(request: SearchRequest, service: MemorySystemService = Depends(get_service)):
    return await service.search(request)


@router.get("/users/{user_id}/profile")
async def get_profile(user_id: str, service: MemorySystemService = Depends(get_service)):
    return await service.get_profile(user_id)