from fastapi import APIRouter, HTTPException, Query

from app.services.file_discovery_service import FileDiscoveryService

router = APIRouter()


@router.get("/roots")
def get_roots():
    service = FileDiscoveryService()
    return {"items": service.list_roots()}


@router.get("/discover")
def discover_files(
    root_id: str = Query(..., min_length=1),
    subpath: str = Query(""),
    recursive: bool = Query(False),
    limit: int = Query(200, ge=1, le=1000),
):
    service = FileDiscoveryService()
    try:
        return service.discover(
            root_id=root_id,
            subpath=subpath,
            recursive=recursive,
            limit=limit,
        )
    except ValueError as exc:
        raise HTTPException(status_code=400, detail=str(exc))