import uuid
from typing import Optional
from datetime import date, timedelta, datetime
from fastapi import APIRouter, HTTPException, status, Depends, Security
from sqlalchemy.exc import SQLAlchemyError
from sqlalchemy.orm import Session

from ..core.config import settings
from ..schemas.auth import UserToken
import barker.schemas.master as schemas
from ..core.security import get_current_active_user as get_user
from ..db.session import SessionLocal
from ..models.master import Customer
from ..models.voucher import GuestBook

router = APIRouter()


# Dependency
def get_db():
    try:
        db = SessionLocal()
        yield db
    finally:
        db.close()


@router.post("", response_model=schemas.GuestBook)
def save(
    data: schemas.GuestBookIn,
    db: Session = Depends(get_db),
    user: UserToken = Security(get_user, scopes=["guest-book"]),
):
    try:
        customer: Customer = db.query(Customer).filter(Customer.phone == data.phone).first()
        if customer is None:
            customer = Customer(company=data.company, name=data.name, phone=data.phone, address=data.address,)
            db.add(customer)
        else:
            customer.name = data.name or customer.name
            customer.company = data.company or customer.company
            customer.address = data.address or customer.address
        item = GuestBook(pax=data.pax, customer=customer)
        db.add(item)
        db.commit()
        return guest_book_info(item)
    except SQLAlchemyError as e:
        db.rollback()
        raise HTTPException(
            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR, detail=str(e),
        )
    except Exception:
        db.rollback()
        raise


@router.put("/{id_}", response_model=schemas.GuestBook)
def update(
    id_: uuid.UUID,
    data: schemas.GuestBookIn,
    db: Session = Depends(get_db),
    user: UserToken = Security(get_user, scopes=["guest-book"]),
):
    try:
        item: GuestBook = db.query(GuestBook).filter(GuestBook.id == id_).first()
        item.customer.company = data.company
        item.customer.name = data.name
        item.customer.phone = data.phone
        item.customer.address = data.address
        item.pax = data.pax
        db.commit()
        return guest_book_info(item)
    except SQLAlchemyError as e:
        db.rollback()
        raise HTTPException(
            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR, detail=str(e),
        )
    except Exception:
        db.rollback()
        raise


@router.delete("/{id_}")
def delete(
    id_: uuid.UUID, db: Session = Depends(get_db), user: UserToken = Security(get_user, scopes=["guest-book"]),
):
    try:
        item: GuestBook = db.query(GuestBook).filter(GuestBook.id == id_).first()
        db.delete(item)
        db.commit()
        return guest_book_info(None)
    except SQLAlchemyError as e:
        db.rollback()
        raise HTTPException(
            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR, detail=str(e),
        )
    except Exception:
        db.rollback()
        raise


@router.get("")
def show_blank(
    db: Session = Depends(get_db), user: UserToken = Security(get_user, scopes=["guest-book"]),
):
    return guest_book_info(None)


@router.get("/list")
def show_list(q: Optional[str] = None, db: Session = Depends(get_db), user: UserToken = Depends(get_user)):
    if q is None or q == "":
        q = date.today()
    else:
        q = datetime.strptime(q, "%d-%b-%Y")
    list_ = (
        db.query(GuestBook)
        .filter(
            GuestBook.date >= q + timedelta(minutes=settings.NEW_DAY_OFFSET_MINUTES - settings.TIMEZONE_OFFSET_MINUTES)
        )
        .filter(
            GuestBook.date
            < q + timedelta(minutes=settings.NEW_DAY_OFFSET_MINUTES - settings.TIMEZONE_OFFSET_MINUTES, days=1)
        )
        .order_by(GuestBook.date)
        .all()
    )

    guest_book = []
    for i, item in enumerate(list_):
        guest_book.insert(
            0,
            {
                "id": item.id,
                "serial": i + 1,
                "company": item.customer.company,
                "name": item.customer.name,
                "phone": item.customer.phone,
                "pax": item.pax,
                "date": item.date.strftime("%d-%b-%Y %H:%M"),
                "status": "" if item.status is None else item.status.status,
            },
        )
    return {"date": q.strftime("%d-%b-%Y"), "list": guest_book}


@router.get("/{id_}")
def show_id(
    id_: uuid.UUID, db: Session = Depends(get_db), user: UserToken = Security(get_user, scopes=["guest-book"]),
):
    item: GuestBook = db.query(GuestBook).filter(GuestBook.id == id_).first()
    return guest_book_info(item)


def guest_book_info(item: Optional[GuestBook]):
    if item is not None:
        return {
            "id": item.id,
            "company": item.customer.company,
            "name": item.customer.name,
            "phone": item.customer.phone,
            "pax": item.pax,
            "address": item.customer.address,
            "date": item.date.strftime("%d-%b-%Y %H:%M"),
        }
    else:
        return {"company": "", "name": "", "phone": "", "pax": 0, "address": ""}