# coding:utf-8

from fastapi import APIRouter, Depends, Query, HTTPException
from app.api import Response, get_current_user, ResponseList
from app.models import RoleParameter, GroupModel, KnowledgeModel
from app.models.base_model import get_db
from app.models.user_model import UserModel
from app.service.knowledge import get_knowledge_list
from typing import Optional
knowledge_router = APIRouter()

@knowledge_router.get("/list", response_model=Response)
async def knowledge_list(
        current_user: UserModel = Depends(get_current_user),
        page: Optional[int] = Query(None, description="Page number", gt=0),
        num: Optional[int] = Query(18, description="Number of items per page", gt=0),
        db=Depends(get_db)):
    getknowledgelist = await get_knowledge_list(db, current_user.id)
    if page is None:
        return Response(code=200, msg="", data={"rows": getknowledgelist["rows"][0:num]})

    start = (page - 1) * num
    end = start + num

    if start >= len(getknowledgelist):
        raise HTTPException(status_code=404, detail="Page not found")
    print(getknowledgelist)

    return Response(code=200, msg="",  data={"rows": getknowledgelist["rows"][start:end]})