from fastapi import APIRouter, HTTPException, Query

from app.core.dependencies import get_history_service

router = APIRouter(prefix="/api/v1/history", tags=["history"])


@router.get("")
def list_history(
    limit: int = Query(50, ge=0),
    offset: int = Query(0, ge=0),
):
    svc = get_history_service()
    queries = svc.list(limit=limit, offset=offset)
    total_row = _get_total_count(svc)
    return {
        "queries": queries,
        "total": total_row,
        "limit": limit,
        "offset": offset,
    }


def _get_total_count(svc) -> int:
    stats = svc.get_stats()
    return stats["total_queries"]


@router.get("/stats")
def get_stats():
    svc = get_history_service()
    return svc.get_stats()


@router.get("/{query_id}")
def get_history_detail(query_id: int):
    svc = get_history_service()
    record = svc.get(query_id)
    if record is None:
        raise HTTPException(status_code=404, detail="Query not found")
    return record


@router.delete("/{query_id}")
def delete_history(query_id: int):
    svc = get_history_service()
    deleted = svc.delete(query_id)
    if not deleted:
        raise HTTPException(status_code=404, detail="Query not found")
    return {"status": "ok", "deleted_id": query_id}


@router.delete("")
def clear_all_history():
    svc = get_history_service()
    count = svc.clear_all()
    return {"status": "ok", "deleted_count": count}