from typing import Annotated, Optional, List
from fastapi import APIRouter, HTTPException, status, Query, Depends

from sqlalchemy import Select

from .schema import QueryParams
from .model import MasterData
from .schema import (
    MasterDataPagination,
    MasterDataRead,
    MasterDataCreate,
    MasterDataUpdate,
    BulkMasterDataUpdate,
)
from .service import get, get_all, create, update, bulk_update, delete

from src.database.service import CommonParameters, search_filter_sort_paginate
from src.database.core import DbSession
from src.auth.service import CurrentUser
from src.models import StandardResponse

router = APIRouter()

@router.get("", response_model=StandardResponse[MasterDataPagination])
async def get_masterdatas(
    db_session: DbSession,
    common: CommonParameters,
    params: Annotated[QueryParams, Depends()],
):
    """Get all documents."""
    # return
    master_datas = await get_all(
        db_session=db_session,
        items_per_page=params.items_per_page,
        search=params.search,
        common=common,
    )
    return StandardResponse(
        data=master_datas,
        message="Data retrieved successfully",
    )

@router.get("/export-all", response_model=StandardResponse[MasterDataPagination])
async def get_masterdatas_export_all(
    db_session: DbSession,
    common: CommonParameters,
):
    """Get all documents for export."""
    common["all"] = True
    master_datas = await get_all(
        db_session=db_session,
        items_per_page=-1,
        common=common,
    )
    return StandardResponse(
        data=master_datas,
        message="All Master Data retrieved successfully",
    )


@router.get("/{masterdata_id}", response_model=StandardResponse[MasterDataRead])
async def get_masterdata(db_session: DbSession, masterdata_id: str):
    masterdata = await get(db_session=db_session, masterdata_id=masterdata_id)
    if not masterdata:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail="A data with this id does not exist.",
        )

    return StandardResponse(data=masterdata, message="Data retrieved successfully")


@router.post("", response_model=StandardResponse[MasterDataRead])
async def create_masterdata(
    db_session: DbSession, masterdata_in: MasterDataCreate, current_user: CurrentUser
):
    masterdata_in.created_by = current_user.name
    masterdata = await create(db_session=db_session, masterdata_in=masterdata_in)

    return StandardResponse(data=masterdata, message="Data created successfully")


@router.post("/update/bulk", response_model=StandardResponse[List[MasterDataRead]])
async def update_masterdata(
    db_session: DbSession,
    data: BulkMasterDataUpdate,
    current_user: CurrentUser,
):
    # Extract IDs and updates
    updates = []
    ids = []

    for item in data.updates:
        masterdata_id = item.pop("id")  # remove id from update data
        # Create MasterDataUpdate object with remaining data
        update = MasterDataUpdate(**item, updated_by=current_user.name)
        updates.append(update)
        ids.append(masterdata_id)

    # Verify all records exist
    query = Select(MasterData).where(MasterData.id.in_(ids))
    result = await db_session.execute(query)

    existing_records = result.scalars().all()
    if len(existing_records) != len(ids):
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail="Some records do not exist",
        )

    return StandardResponse(
        data=await bulk_update(db_session=db_session, updates=updates, ids=ids),
        message="Data updated successfully",
    )

@router.post("/update/{masterdata_id}", response_model=StandardResponse[MasterDataRead])
async def update_masterdata(
    db_session: DbSession,
    masterdata_id: str,
    masterdata_in: MasterDataUpdate,
    current_user: CurrentUser,
):
    masterdata = await get(db_session=db_session, masterdata_id=masterdata_id)

    if not masterdata:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail="A data with this id does not exist.",
        )
    masterdata_in.updated_by = current_user.name

    return StandardResponse(
        data=await update(
            db_session=db_session, masterdata=masterdata, masterdata_in=masterdata_in
        ),
        message="Data updated successfully",
    )


@router.post("/delete/{masterdata_id}", response_model=StandardResponse[MasterDataRead])
async def delete_masterdata(db_session: DbSession, masterdata_id: str):
    masterdata = await get(db_session=db_session, masterdata_id=masterdata_id)

    if not masterdata:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail=[{"msg": "A data with this id does not exist."}],
        )

    await delete(db_session=db_session, masterdata_id=masterdata_id)

    return StandardResponse(message="Data deleted successfully", data=masterdata)