from typing import Optional

from fastapi import HTTPException, status
from sqlalchemy import Delete, Select, func
from sqlalchemy.orm import selectinload

# from .model import OverhaulSchedule
# from .schema import OverhaulScheduleCreate, OverhaulScheduleUpdate
from .utils import fetch_all_sections, get_google_creds, get_spreatsheed_service, process_spreadsheet_data

# async def get_all(*, common):
#     """Returns all documents."""
#     query = Select(OverhaulSchedule).order_by(OverhaulSchedule.start.desc())

#     results = await search_filter_sort_paginate(model=query, **common)
#     return results


# async def create(
#     *, db_session: DbSession, overhaul_job_in: OverhaulScheduleCreate
# ):


#     schedule = OverhaulSchedule(**overhaul_job_in.model_dump())
#     db_session.add(schedule)
#     await db_session.commit()
#     return schedule



# async def update(*, db_session: DbSession, overhaul_schedule_id: str, overhaul_job_in: OverhaulScheduleUpdate):
#     """Updates a document."""
#     data = overhaul_job_in.model_dump()
#     overhaul_schedule = await db_session.get(OverhaulSchedule, overhaul_schedule_id)

#     update_data = overhaul_job_in.model_dump(exclude_defaults=True)

#     for field in data:
#         if field in update_data:
#             setattr(overhaul_schedule, field, update_data[field])

#     await db_session.commit()

#     return overhaul_schedule


# async def delete(*, db_session: DbSession, overhaul_schedule_id: str):
#     """Deletes a document."""
#     query = Delete(OverhaulSchedule).where(OverhaulSchedule.id == overhaul_schedule_id)
#     await db_session.execute(query)
#     await db_session.commit()


async def get_gantt_performance_chart(*, spreadsheet_id = "1gZXuwA97zU1v4QBv56wKeiqadc6skHUucGKYG8qVFRk"):
    creds = get_google_creds()
    RANGE_NAME = "'2024 kurva s'!N79:BJ83"  # Or just "2024 schedule"
    GANTT_DATA_NAME = "2024 schedule"

    try:
        service = get_spreatsheed_service(creds)
        sheet = service.spreadsheets()
        response = sheet.values().get(spreadsheetId=spreadsheet_id, range=RANGE_NAME).execute()
        values = response.get("values", [])
        keys = ['day', 'time', 'plan', 'actual', 'gap']
        transposed = list(zip(*values))
        results = [dict(zip(keys, result)) for result in transposed]
         
    except Exception as e:
        raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail=e)

    processed_data = process_spreadsheet_data(results)
    gantt_data = fetch_all_sections(service=service, spreadsheet_id=spreadsheet_id, sheet_name=GANTT_DATA_NAME)
    


    return processed_data, gantt_data