import uuid

from datetime import date, datetime, timedelta

import barker.schemas.guest_book as schemas

from fastapi import APIRouter, Depends, HTTPException, Security, status
from sqlalchemy import select
from sqlalchemy.exc import SQLAlchemyError

from ..core.config import settings
from ..core.security import get_current_active_user as get_user
from ..db.session import SessionFuture
from ..models.customer import Customer
from ..models.guest_book import GuestBook
from ..schemas.user_token import UserToken


router = APIRouter()


@router.post("", response_model=schemas.GuestBook)
def save(
    data: schemas.GuestBookIn,
    user: UserToken = Security(get_user, scopes=["customers"]),
) -> schemas.GuestBook:
    try:
        with SessionFuture() as db:
            customer = db.execute(select(Customer).where(Customer.phone == data.phone)).scalars().one_or_none()
            if customer is None:
                customer = Customer(
                    name=data.name,
                    phone=data.phone,
                    address=data.address,
                    print_in_bill=False,
                )
                db.add(customer)
            else:
                customer.name = data.name or customer.name
                customer.address = data.address or customer.address
            item = GuestBook(
                pax=data.pax, customer=customer, date_=data.date_ - timedelta(minutes=settings.TIMEZONE_OFFSET_MINUTES)
            )
            db.add(item)
            db.commit()
            return guest_book_info(item)
    except SQLAlchemyError as e:
        raise HTTPException(
            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
            detail=str(e),
        )


@router.put("/{id_}", response_model=schemas.GuestBook)
def update_route(
    id_: uuid.UUID,
    data: schemas.GuestBookIn,
    user: UserToken = Security(get_user, scopes=["customers"]),
) -> schemas.GuestBook:
    try:
        with SessionFuture() as db:
            item: GuestBook = db.execute(select(GuestBook).where(GuestBook.id == id_)).scalar_one()
            item.customer.name = data.name
            item.customer.phone = data.phone
            item.customer.address = data.address
            item.pax = data.pax
            item.date = data.date_ - timedelta(minutes=settings.TIMEZONE_OFFSET_MINUTES)
            db.commit()
            return guest_book_info(item)
    except SQLAlchemyError as e:
        raise HTTPException(
            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
            detail=str(e),
        )


@router.delete("/{id_}", response_model=schemas.GuestBookIn)
def delete_route(
    id_: uuid.UUID,
    user: UserToken = Security(get_user, scopes=["customers"]),
) -> schemas.GuestBookIn:
    try:
        with SessionFuture() as db:
            item: GuestBook = db.execute(select(GuestBook).where(GuestBook.id == id_)).scalar_one()
            db.delete(item)
            db.commit()
            return blank_guest_book_info()
    except SQLAlchemyError as e:
        raise HTTPException(
            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
            detail=str(e),
        )


@router.get("", response_model=schemas.GuestBookIn)
def show_blank(
    user: UserToken = Security(get_user, scopes=["customers"]),
) -> schemas.GuestBookIn:
    return blank_guest_book_info()


@router.get("/list", response_model=schemas.GuestBookList)
def show_list(
    q: str | None = None,
    user: UserToken = Depends(get_user),
) -> schemas.GuestBookList:
    if q is None or q == "":
        d = date.today()
    else:
        d = datetime.strptime(q, "%d-%b-%Y")
    list_ = (
        select(GuestBook)
        .where(
            GuestBook.date >= d + timedelta(minutes=settings.NEW_DAY_OFFSET_MINUTES - settings.TIMEZONE_OFFSET_MINUTES)
        )
        .where(
            GuestBook.date
            < d
            + timedelta(
                minutes=settings.NEW_DAY_OFFSET_MINUTES - settings.TIMEZONE_OFFSET_MINUTES,
                days=1,
            )
        )
        .order_by(GuestBook.date)
    )

    guest_book: list[schemas.GuestBookListItem] = []
    with SessionFuture() as db:
        for i, item in enumerate(db.execute(list_).scalars().all()):
            guest_book.insert(
                0,
                schemas.GuestBookListItem(
                    id=item.id,
                    serial=i + 1,
                    name=item.customer.name,
                    phone=item.customer.phone,
                    pax=item.pax,
                    date=item.date,
                    status=None if item.status is None else item.status.status,
                    tableId=None if item.status is None else item.status.food_table.id,
                    voucherId=None if item.status is None else item.status.voucher_id,
                    tableName=None if item.status is None else item.status.food_table.name,
                ),
            )
        return schemas.GuestBookList(date=d, list=guest_book)


@router.get("/{id_}", response_model=schemas.GuestBook)
def show_id(
    id_: uuid.UUID,
    user: UserToken = Security(get_user, scopes=["customers"]),
) -> schemas.GuestBook:
    with SessionFuture() as db:
        item: GuestBook = db.execute(select(GuestBook).where(GuestBook.id == id_)).scalar_one()
        return guest_book_info(item)


def guest_book_info(item: GuestBook) -> schemas.GuestBook:
    return schemas.GuestBook(
        id=item.id,
        name=item.customer.name,
        phone=item.customer.phone,
        pax=item.pax,
        address=item.customer.address,
        date=item.date + timedelta(minutes=settings.TIMEZONE_OFFSET_MINUTES),
    )


def blank_guest_book_info() -> schemas.GuestBookIn:
    return schemas.GuestBookIn(
        name="",
        phone="",
        pax=0,
        address="",
        date=datetime.utcnow() + timedelta(minutes=settings.TIMEZONE_OFFSET_MINUTES),
    )