370 lines
14 KiB
Python
370 lines
14 KiB
Python
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import uuid
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from decimal import Decimal
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from django.http import JsonResponse
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from django.utils.decorators import method_decorator
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from django.views.decorators.csrf import csrf_exempt
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from django.forms.models import model_to_dict
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from django.utils import timezone
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from datetime import date
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from rest_framework.views import APIView
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from bookings.models import Cart, TicketType, TicketMeta, Booking, Ticket
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from mobile_api.utils import validate_token_and_get_user
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from banking_operations.services import transaction_initiate
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from eventify_logger.services import log
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def _cart_to_dict(cart):
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"""Serialize Cart for JSON."""
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data = model_to_dict(
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cart,
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fields=["id", "quantity", "price", "created_date", "updated_date"],
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)
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data["user_id"] = cart.user_id
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data["ticket_meta_id"] = cart.ticket_meta_id
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data["ticket_type_id"] = cart.ticket_type_id
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return data
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@method_decorator(csrf_exempt, name="dispatch")
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class AddToCartAPI(APIView):
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"""
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Add TicketType to Cart (when customer clicks plus button).
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Body: token, username, ticket_type_id, quantity (optional, defaults to 1).
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If cart item already exists for this user + ticket_type, quantity is incremented.
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Price is taken from TicketType (offer_price if offer is active, else price).
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"""
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def post(self, request):
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try:
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user, token, data, error_response = validate_token_and_get_user(request)
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if error_response:
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return error_response
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ticket_type_id = data.get("ticket_type_id")
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quantity = data.get("quantity", 1) # Default to 1 for plus button click
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if not ticket_type_id:
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return JsonResponse(
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{"status": "error", "message": "ticket_type_id is required."},
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status=400,
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)
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try:
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ticket_type = TicketType.objects.select_related("ticket_meta").get(id=ticket_type_id)
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except TicketType.DoesNotExist:
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return JsonResponse(
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{"status": "error", "message": "TicketType not found."},
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status=404,
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)
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if not ticket_type.is_active:
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return JsonResponse(
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{"status": "error", "message": "TicketType is not active."},
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status=400,
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)
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try:
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quantity = int(quantity)
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if quantity <= 0:
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return JsonResponse(
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{"status": "error", "message": "quantity must be greater than zero."},
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status=400,
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)
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except (TypeError, ValueError):
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return JsonResponse(
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{"status": "error", "message": "quantity must be a positive integer."},
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status=400,
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)
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# Determine price: use offer_price if offer is active, else regular price
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price = ticket_type.price
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if ticket_type.is_offer:
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# Check if offer is currently valid (if dates are set)
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today = date.today()
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offer_valid = True
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if ticket_type.offer_start_date and ticket_type.offer_start_date > today:
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offer_valid = False
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if ticket_type.offer_end_date and ticket_type.offer_end_date < today:
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offer_valid = False
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if offer_valid and ticket_type.offer_price > 0:
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price = ticket_type.offer_price
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# Check if cart item already exists for this user + ticket_type
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cart_item, created = Cart.objects.get_or_create(
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user=user,
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ticket_type=ticket_type,
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defaults={
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"ticket_meta": ticket_type.ticket_meta,
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"quantity": quantity,
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"price": price,
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},
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)
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if not created:
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# Update existing cart item: increment quantity
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cart_item.quantity += quantity
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cart_item.price = price # Update price in case offer changed
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cart_item.save()
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return JsonResponse(
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{
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"status": "success",
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"message": "TicketType added to cart." if created else "Cart item updated.",
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"cart_item": _cart_to_dict(cart_item),
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},
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status=201 if created else 200,
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)
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except Exception as e:
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return JsonResponse({"status": "error", "message": str(e)}, status=500)
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@method_decorator(csrf_exempt, name="dispatch")
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class DeleteFromCartAPI(APIView):
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"""
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Remove or decrement TicketType from Cart (when customer clicks minus button).
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Body: token, username, ticket_type_id, quantity (optional, defaults to 1).
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Decrements quantity by 1 (or by given quantity). If quantity becomes 0 or less,
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the cart item is deleted.
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"""
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def post(self, request):
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try:
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user, token, data, error_response = validate_token_and_get_user(request)
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if error_response:
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return error_response
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ticket_type_id = data.get("ticket_type_id")
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quantity = data.get("quantity", 1) # Default to 1 for minus button click
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if not ticket_type_id:
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return JsonResponse(
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{"status": "error", "message": "ticket_type_id is required."},
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status=400,
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)
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try:
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quantity = int(quantity)
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if quantity <= 0:
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return JsonResponse(
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{"status": "error", "message": "quantity must be greater than zero."},
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status=400,
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)
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except (TypeError, ValueError):
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return JsonResponse(
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{"status": "error", "message": "quantity must be a positive integer."},
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status=400,
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)
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try:
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cart_item = Cart.objects.get(user=user, ticket_type_id=ticket_type_id)
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except Cart.DoesNotExist:
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return JsonResponse(
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{"status": "error", "message": "Cart item not found for this ticket type."},
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status=404,
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)
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cart_item.quantity -= quantity
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if cart_item.quantity <= 0:
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cart_item.delete()
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return JsonResponse(
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{
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"status": "success",
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"message": "TicketType removed from cart.",
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"cart_item": None,
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"removed": True,
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},
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status=200,
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)
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cart_item.save()
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return JsonResponse(
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{
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"status": "success",
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"message": "Cart quantity updated.",
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"cart_item": _cart_to_dict(cart_item),
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"removed": False,
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},
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status=200,
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)
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except Exception as e:
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return JsonResponse({"status": "error", "message": str(e)}, status=500)
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@method_decorator(csrf_exempt, name="dispatch")
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class CheckoutAPI(APIView):
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"""
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Checkout the authenticated user's cart: create one Booking per cart line,
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call transaction_initiate in banking_operations, then clear the checked-out cart items.
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Body: token, username.
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"""
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def post(self, request):
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try:
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user, token, data, error_response = validate_token_and_get_user(request)
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if error_response:
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return error_response
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cart_items = list(
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Cart.objects.filter(user=user, is_active=True).select_related(
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"ticket_meta", "ticket_type", "ticket_meta__event"
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)
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)
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if not cart_items:
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return JsonResponse(
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{"status": "error", "message": "Cart is empty. Add ticket types before checkout."},
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status=400,
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)
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total_amount = Decimal("0")
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created_bookings = []
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cart_ids_to_clear = []
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for item in cart_items:
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event_name = (
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(item.ticket_meta.event.name or "EVT")[:3].upper()
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if item.ticket_meta.event_id else "EVT"
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)
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booking_id = event_name + uuid.uuid4().hex[:10].upper()
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line_total = Decimal(str(item.price)) * item.quantity
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total_amount += line_total
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booking = Booking.objects.create(
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booking_id=booking_id,
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user=user,
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ticket_meta=item.ticket_meta,
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ticket_type=item.ticket_type,
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quantity=item.quantity,
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price=item.price,
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)
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created_bookings.append(booking)
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cart_ids_to_clear.append(item.id)
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reference_id = ",".join(b.booking_id for b in created_bookings)
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result = transaction_initiate(
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request=request,
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user=user,
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amount=float(total_amount),
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currency="INR",
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reference_type="checkout",
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reference_id=reference_id,
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bookings=created_bookings,
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extra_data=None,
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)
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if not result.get("success"):
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for b in created_bookings:
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b.delete()
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return JsonResponse(
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{
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"status": "error",
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"message": result.get("message", "Transaction initiation failed."),
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},
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status=502,
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)
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transaction_id = result.get("transaction_id")
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if transaction_id:
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for b in created_bookings:
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b.transaction_id = transaction_id
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b.save(update_fields=["transaction_id"])
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Cart.objects.filter(id__in=cart_ids_to_clear).delete()
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log("info", "Checkout complete", request=request, user=user, logger_data={
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"booking_ids": [b.booking_id for b in created_bookings],
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"total_amount": str(total_amount),
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})
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response_payload = {
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"status": "success",
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"message": "Checkout complete. Proceed to payment.",
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"booking_ids": [b.booking_id for b in created_bookings],
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"total_amount": str(total_amount),
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"transaction_id": result.get("transaction_id"),
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"payment_url": result.get("payment_url"),
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}
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return JsonResponse(response_payload, status=200)
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except Exception as e:
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log("error", "Checkout exception", request=request, logger_data={"error": str(e)})
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return JsonResponse({"status": "error", "message": str(e)}, status=500)
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@method_decorator(csrf_exempt, name="dispatch")
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class CheckInAPI(APIView):
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"""
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Check-in a ticket by scanning QR code (ticket_id).
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Body: token, username, ticket_id (required).
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Looks up Ticket by ticket_id. If found and not already checked in,
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sets is_checked_in=True and checked_in_date_time=now. Returns success or
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appropriate error (ticket not found / already checked in).
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"""
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def post(self, request):
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try:
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user, token, data, error_response = validate_token_and_get_user(request, error_status_code=True)
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if error_response:
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return error_response
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ticket_id = data.get("ticket_id")
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if not ticket_id or not str(ticket_id).strip():
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return JsonResponse(
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{"status": "error", "message": "ticket_id is required."},
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status=400,
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)
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ticket_id = str(ticket_id).strip()
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try:
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ticket = Ticket.objects.select_related(
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"booking", "booking__ticket_meta", "booking__ticket_meta__event", "booking__ticket_type"
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).get(ticket_id=ticket_id)
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except Ticket.DoesNotExist:
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return JsonResponse(
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{"status": "error", "message": "Ticket not found."},
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status=404,
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)
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if ticket.is_checked_in:
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log("info", "Check-in duplicate - ticket already checked in", request=request, user=user, logger_data={"ticket_id": ticket_id})
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return JsonResponse(
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{
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"status": "success",
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"message": "Ticket already checked in.",
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"ticket_id": ticket.ticket_id,
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"is_checked_in": True,
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"checked_in_date_time": ticket.checked_in_date_time.isoformat() if ticket.checked_in_date_time else None,
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"event_name": ticket.booking.ticket_meta.event.name if ticket.booking.ticket_meta_id else None,
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"booking_id": ticket.booking.booking_id,
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},
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status=200,
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)
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ticket.is_checked_in = True
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ticket.checked_in_date_time = timezone.now()
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ticket.save(update_fields=["is_checked_in", "checked_in_date_time"])
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log("info", "Check-in successful", request=request, user=user, logger_data={"ticket_id": ticket_id, "booking_id": ticket.booking.booking_id})
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return JsonResponse(
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{
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"status": "success",
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"message": "Check-in successful.",
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"ticket_id": ticket.ticket_id,
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"is_checked_in": True,
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"checked_in_date_time": ticket.checked_in_date_time.isoformat(),
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"event_name": ticket.booking.ticket_meta.event.name if ticket.booking.ticket_meta_id else None,
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"booking_id": ticket.booking.booking_id,
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},
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status=200,
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)
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except Exception as e:
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log("error", "Check-in exception", request=request, logger_data={"error": str(e)})
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return JsonResponse({"status": "error", "message": str(e)}, status=500)
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