from fastapi import Form, APIRouter, File, UploadFile, HTTPException, Request
from db.repository import get_db_conn
from db.get_data import GetDatabase
from db.save_data import InsertDatabase
from config import MYSQL_CONFIG
from api.function import data_ingestion, get_data, delete_data, update_data
from script.vector_db import IndexManager
from service.dto import MetadataRequest

router = APIRouter(tags=["Topics"])

db_conn = get_db_conn(MYSQL_CONFIG)
get_database = GetDatabase(db_conn)
index_manager = IndexManager()


@router.post("/topic")
async def upload_file(
    title: str = Form(...),
    author: str = Form(...),
    category: str = Form(...),
    year: int = Form(...),
    publisher: str = Form(...),
    file: UploadFile = File(...),
    # content_table: UploadFile = File(...)
):

    reference = {
        "title": title,
        "author": author,
        "category": category,
        "year": year,
        "publisher": publisher,
    }

    # response = await data_ingestion(db_conn, reference, file, content_table)
    response = await data_ingestion(db_conn, reference, file)
    return {"filename": file.filename, "response": response}


@router.get("/topic")
async def get_metadata():
    results = await get_data(db_conn)
    return results


@router.put("/topic/{id}")
async def update_metadata(id: int, reference: MetadataRequest):
    try :
        old_reference = await get_database.get_data_by_id(id)
        index_manager.update_vector_database(old_reference, reference)

        return await update_data(id, reference, db_conn)
    except Exception as e:
        raise HTTPException(status_code=500, detail="An error occurred while updating metadata")


@router.delete("/topic/{id}")
async def delete_metadata(id: int):
    try:
        old_reference = await get_database.get_data_by_id(id)
        index_manager.delete_vector_database(old_reference)

        return await delete_data(id, db_conn)
    
    except Exception as e:
        print(e)
        raise HTTPException(status_code=500, detail="An error occurred while delete metadata")