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from fastapi import APIRouter, Depends, HTTPException, status, Request
from sqlalchemy.orm import Session
from typing import List
from datetime import datetime, timezone
from ..database import get_db, SelectionOffer as SelectionOfferModel, get_session_db, get_hotel_id_from_request
from ..models.selection_offer import (
SelectionOffer,
SelectionOfferCreate,
SelectionOfferUpdate,
)
from ..middleware import get_session_id
router = APIRouter(
prefix="/selection-offers",
tags=["selection-offers"],
responses={404: {"description": "Not found"}},
)
# Dependency to get session-aware database
def get_session_database(request: Request):
session_id = get_session_id(request)
return next(get_session_db(session_id))
# Get all selection offers
@router.get("/", response_model=List[SelectionOffer])
def get_all_selection_offers(request: Request, db: Session = Depends(get_session_database)):
hotel_id = get_hotel_id_from_request(request)
return db.query(SelectionOfferModel).filter(SelectionOfferModel.hotel_id == hotel_id).order_by(SelectionOfferModel.min_amount).all()
# Get active selection offers
@router.get("/active", response_model=List[SelectionOffer])
def get_active_selection_offers(request: Request, db: Session = Depends(get_session_database)):
hotel_id = get_hotel_id_from_request(request)
return (
db.query(SelectionOfferModel)
.filter(
SelectionOfferModel.hotel_id == hotel_id,
SelectionOfferModel.is_active == True
)
.order_by(SelectionOfferModel.min_amount)
.all()
)
# Get selection offer by ID
@router.get("/{offer_id}", response_model=SelectionOffer)
def get_selection_offer(offer_id: int, request: Request, db: Session = Depends(get_session_database)):
hotel_id = get_hotel_id_from_request(request)
db_offer = (
db.query(SelectionOfferModel).filter(
SelectionOfferModel.hotel_id == hotel_id,
SelectionOfferModel.id == offer_id
).first()
)
if not db_offer:
raise HTTPException(status_code=404, detail="Selection offer not found")
return db_offer
# Create new selection offer
@router.post("/", response_model=SelectionOffer)
def create_selection_offer(offer: SelectionOfferCreate, request: Request, db: Session = Depends(get_session_database)):
hotel_id = get_hotel_id_from_request(request)
# Check if an offer with this min_amount already exists for this hotel
existing_offer = (
db.query(SelectionOfferModel)
.filter(
SelectionOfferModel.hotel_id == hotel_id,
SelectionOfferModel.min_amount == offer.min_amount
)
.first()
)
if existing_offer:
raise HTTPException(
status_code=400,
detail=f"Selection offer with minimum amount {offer.min_amount} already exists",
)
# Create new offer
db_offer = SelectionOfferModel(
hotel_id=hotel_id,
min_amount=offer.min_amount,
discount_amount=offer.discount_amount,
is_active=offer.is_active,
description=offer.description,
created_at=datetime.now(timezone.utc),
updated_at=datetime.now(timezone.utc),
)
db.add(db_offer)
db.commit()
db.refresh(db_offer)
return db_offer
# Update selection offer
@router.put("/{offer_id}", response_model=SelectionOffer)
def update_selection_offer(
offer_id: int, offer_update: SelectionOfferUpdate, request: Request, db: Session = Depends(get_session_database)
):
hotel_id = get_hotel_id_from_request(request)
db_offer = (
db.query(SelectionOfferModel).filter(
SelectionOfferModel.hotel_id == hotel_id,
SelectionOfferModel.id == offer_id
).first()
)
if not db_offer:
raise HTTPException(status_code=404, detail="Selection offer not found")
# Check if updating min_amount and if it already exists for this hotel
if (
offer_update.min_amount is not None
and offer_update.min_amount != db_offer.min_amount
):
existing_offer = (
db.query(SelectionOfferModel)
.filter(
SelectionOfferModel.hotel_id == hotel_id,
SelectionOfferModel.min_amount == offer_update.min_amount,
SelectionOfferModel.id != offer_id,
)
.first()
)
if existing_offer:
raise HTTPException(
status_code=400,
detail=f"Selection offer with minimum amount {offer_update.min_amount} already exists",
)
db_offer.min_amount = offer_update.min_amount
# Update other fields if provided
if offer_update.discount_amount is not None:
db_offer.discount_amount = offer_update.discount_amount
if offer_update.is_active is not None:
db_offer.is_active = offer_update.is_active
if offer_update.description is not None:
db_offer.description = offer_update.description
db_offer.updated_at = datetime.now(timezone.utc)
db.commit()
db.refresh(db_offer)
return db_offer
# Delete selection offer
@router.delete("/{offer_id}")
def delete_selection_offer(offer_id: int, request: Request, db: Session = Depends(get_session_database)):
hotel_id = get_hotel_id_from_request(request)
db_offer = (
db.query(SelectionOfferModel).filter(
SelectionOfferModel.hotel_id == hotel_id,
SelectionOfferModel.id == offer_id
).first()
)
if not db_offer:
raise HTTPException(status_code=404, detail="Selection offer not found")
db.delete(db_offer)
db.commit()
return {"message": "Selection offer deleted successfully"}
# Get applicable discount for an order amount
@router.get("/discount/{order_amount}")
def get_discount_for_order_amount(order_amount: float, request: Request, db: Session = Depends(get_session_database)):
hotel_id = get_hotel_id_from_request(request)
# Find the highest tier that the order amount qualifies for this hotel
applicable_offer = (
db.query(SelectionOfferModel)
.filter(
SelectionOfferModel.hotel_id == hotel_id,
SelectionOfferModel.min_amount <= order_amount,
SelectionOfferModel.is_active == True,
)
.order_by(SelectionOfferModel.min_amount.desc())
.first()
)
if not applicable_offer:
return {
"discount_amount": 0,
"message": "No applicable selection offer discount",
}
return {
"discount_amount": applicable_offer.discount_amount,
"offer_id": applicable_offer.id,
"min_amount": applicable_offer.min_amount,
"message": f"Selection offer discount of ₹{applicable_offer.discount_amount} applied",
}
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