Free rooms first implementation
This commit is contained in:
Jonas Linter
@@ -86,6 +86,10 @@ class AlpineBitsActionName(Enum):
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"action_OTA_HotelRatePlan_BaseRates",
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"OTA_HotelRatePlan:BaseRates",
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)
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OTA_HOTEL_INV_COUNT_NOTIF_FREE_ROOMS = (
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"action_OTA_HotelInvCountNotif",
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"OTA_HotelInvCountNotif:FreeRooms",
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)
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def __init__(self, capability_name: str, request_name: str):
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self.capability_name = capability_name
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@@ -819,3 +823,7 @@ class AlpineBitsServer:
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return False
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return True
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# Ensure FreeRoomsAction is registered with ServerCapabilities discovery
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from .free_rooms_action import FreeRoomsAction # noqa: E402,F401
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@@ -18,6 +18,8 @@ from sqlalchemy import (
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Index,
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Integer,
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String,
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UniqueConstraint,
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func,
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)
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from sqlalchemy.exc import DBAPIError
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from sqlalchemy.ext.asyncio import (
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@@ -679,6 +681,66 @@ class ConversionRoom(Base):
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conversion = relationship("Conversion", back_populates="conversion_rooms")
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class HotelInventory(Base):
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"""Room and category definitions synchronized via AlpineBits."""
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__tablename__ = "hotel_inventory"
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id = Column(Integer, primary_key=True)
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hotel_id = Column(
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String(50), ForeignKey("hotels.hotel_id", ondelete="CASCADE"), nullable=False, index=True
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)
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inv_type_code = Column(String(8), nullable=False, index=True)
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inv_code = Column(String(16), nullable=True, index=True)
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room_name = Column(String(200), nullable=True)
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max_occupancy = Column(Integer, nullable=True)
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source = Column(String(20), nullable=False)
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first_seen = Column(DateTime(timezone=True), nullable=False)
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last_updated = Column(DateTime(timezone=True), nullable=False)
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hotel = relationship("Hotel", back_populates="inventory_items")
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availability = relationship(
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"RoomAvailability",
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back_populates="inventory_item",
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cascade="all, delete-orphan",
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passive_deletes=True,
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)
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__table_args__ = (
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Index(
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"uq_hotel_inventory_unique_key",
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"hotel_id",
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"inv_type_code",
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func.coalesce(inv_code, ""),
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unique=True,
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),
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)
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class RoomAvailability(Base):
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"""Daily availability counts for inventory items."""
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__tablename__ = "room_availability"
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id = Column(Integer, primary_key=True)
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inventory_id = Column(
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Integer, ForeignKey("hotel_inventory.id", ondelete="CASCADE"), nullable=False, index=True
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)
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date = Column(Date, nullable=False, index=True)
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count_type_2 = Column(Integer, nullable=True)
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count_type_6 = Column(Integer, nullable=True)
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count_type_9 = Column(Integer, nullable=True)
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is_closing_season = Column(Boolean, nullable=False, default=False)
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last_updated = Column(DateTime(timezone=True), nullable=False)
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update_type = Column(String(20), nullable=False)
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inventory_item = relationship("HotelInventory", back_populates="availability")
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__table_args__ = (
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UniqueConstraint("inventory_id", "date", name="uq_room_availability_unique_key"),
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)
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class Hotel(Base):
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"""Hotel configuration (migrated from alpine_bits_auth in config.yaml)."""
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@@ -710,6 +772,9 @@ class Hotel(Base):
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# Relationships
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webhook_endpoints = relationship("WebhookEndpoint", back_populates="hotel")
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inventory_items = relationship(
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"HotelInventory", back_populates="hotel", cascade="all, delete-orphan"
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)
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class WebhookEndpoint(Base):
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600
src/alpine_bits_python/free_rooms_action.py
Normal file
600
src/alpine_bits_python/free_rooms_action.py
Normal file
@@ -0,0 +1,600 @@
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"""Action handler for OTA_HotelInvCountNotif:FreeRooms."""
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from __future__ import annotations
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from dataclasses import dataclass
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from datetime import UTC, date, datetime, timedelta
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from typing import Any
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from sqlalchemy import delete, select
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from sqlalchemy.dialects.postgresql import insert as pg_insert
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from sqlalchemy.dialects.sqlite import insert as sqlite_insert
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from sqlalchemy.ext.asyncio import AsyncSession
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from xsdata.formats.dataclass.serializers.config import SerializerConfig
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from xsdata_pydantic.bindings import XmlParser, XmlSerializer
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from .alpinebits_server import (
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AlpineBitsAction,
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AlpineBitsActionName,
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AlpineBitsClientInfo,
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AlpineBitsResponse,
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Version,
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validate_hotel_authentication,
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)
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from .const import HttpStatusCode
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from .db import Hotel, HotelInventory, RoomAvailability
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from .generated import (
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ErrorType,
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InvCountCountType,
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OtaHotelInvCountNotifRq,
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OtaHotelInvCountNotifRs,
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UniqueIdInstance,
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)
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from .logging_config import get_logger
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_LOGGER = get_logger(__name__)
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SUPPORTED_CAPABILITIES = [
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"OTA_HotelInvCountNotif_accept_rooms",
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"OTA_HotelInvCountNotif_accept_categories",
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"OTA_HotelInvCountNotif_accept_deltas",
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"OTA_HotelInvCountNotif_accept_complete_set",
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"OTA_HotelInvCountNotif_accept_out_of_order",
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"OTA_HotelInvCountNotif_accept_out_of_market",
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"OTA_HotelInvCountNotif_accept_closing_seasons",
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]
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CLOSING_SEASON_TYPE = "__CLOSE" # <= 8 chars per spec
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SOURCE_FREEROOMS = "FreeRooms"
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COUNT_TYPE_MAP = {
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InvCountCountType.VALUE_2: "count_type_2",
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InvCountCountType.VALUE_6: "count_type_6",
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InvCountCountType.VALUE_9: "count_type_9",
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}
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@dataclass
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class FreeRoomsProcessingError(Exception):
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"""Custom exception that carries HTTP and OTA error metadata."""
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message: str
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status_code: HttpStatusCode = HttpStatusCode.BAD_REQUEST
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error_type: ErrorType = ErrorType.VALUE_13
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code: str = "450"
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def __str__(self) -> str:
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return self.message
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class FreeRoomsAction(AlpineBitsAction):
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"""Handler for OTA_HotelInvCountNotif:FreeRooms requests."""
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def __init__(self, config: dict | None = None):
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self.name = AlpineBitsActionName.OTA_HOTEL_INV_COUNT_NOTIF_FREE_ROOMS
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self.version = [Version.V2024_10, Version.V2022_10]
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self.config = config or {}
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self.supports = SUPPORTED_CAPABILITIES
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self._parser = XmlParser()
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self._serializer = XmlSerializer(
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config=SerializerConfig(
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pretty_print=True,
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xml_declaration=True,
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encoding="UTF-8",
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)
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)
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async def handle(
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self,
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action: str,
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request_xml: str,
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version: Version,
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client_info: AlpineBitsClientInfo,
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dbsession: AsyncSession | None = None,
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server_capabilities=None,
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) -> AlpineBitsResponse:
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"""Process FreeRooms inventory updates."""
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try:
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self._validate_action_name(action)
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if request_xml is None:
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raise FreeRoomsProcessingError("Missing request payload")
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if dbsession is None:
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raise FreeRoomsProcessingError(
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"Database session unavailable",
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HttpStatusCode.INTERNAL_SERVER_ERROR,
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)
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try:
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request = self._parser.from_string(request_xml, OtaHotelInvCountNotifRq)
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except Exception as exc: # pragma: no cover - serialization already tested upstream
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_LOGGER.exception("Failed to parse FreeRooms request: %s", exc)
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raise FreeRoomsProcessingError("Invalid XML payload") from exc
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hotel_code = request.inventories.hotel_code if request.inventories else None
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if not hotel_code:
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raise FreeRoomsProcessingError("HotelCode attribute is required")
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if not client_info or not client_info.username or not client_info.password:
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raise FreeRoomsProcessingError(
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"Missing authentication context",
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HttpStatusCode.UNAUTHORIZED,
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error_type=ErrorType.VALUE_11,
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code="401",
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)
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if not validate_hotel_authentication(
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client_info.username,
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client_info.password,
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hotel_code,
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self.config,
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):
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raise FreeRoomsProcessingError(
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f"Unauthorized FreeRooms notification for hotel {hotel_code}",
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HttpStatusCode.UNAUTHORIZED,
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error_type=ErrorType.VALUE_11,
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code="401",
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)
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hotel = await self._fetch_hotel(dbsession, hotel_code)
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if hotel is None:
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raise FreeRoomsProcessingError(
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f"Hotel {hotel_code} is not provisioned on this server"
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)
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is_complete_set = (
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request.unique_id is not None
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and request.unique_id.instance == UniqueIdInstance.COMPLETE_SET
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)
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update_type = "CompleteSet" if is_complete_set else "Delta"
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inventory_cache: dict[tuple[str, str | None], HotelInventory] = {}
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try:
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if is_complete_set:
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await self._process_complete_set(
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dbsession, hotel, request, update_type, inventory_cache
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)
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else:
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await self._process_delta(
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dbsession, hotel, request, update_type, inventory_cache
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)
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await dbsession.commit()
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except FreeRoomsProcessingError:
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await dbsession.rollback()
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raise
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except Exception as exc: # pragma: no cover - defensive
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await dbsession.rollback()
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_LOGGER.exception("Unexpected FreeRooms failure: %s", exc)
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return self._error_response(
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"Internal server error while processing FreeRooms notification",
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HttpStatusCode.INTERNAL_SERVER_ERROR,
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)
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_LOGGER.info(
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"Processed FreeRooms %s update for hotel %s (%d inventory items)",
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update_type,
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hotel_code,
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len(request.inventories.inventory),
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)
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return self._success_response()
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except FreeRoomsProcessingError as exc:
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return self._error_response(
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exc.message,
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exc.status_code,
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error_type=exc.error_type,
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code=exc.code,
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)
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def _validate_action_name(self, action: str) -> None:
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expected = self.name.value[1]
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if (action or "").strip() != expected:
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raise FreeRoomsProcessingError(
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f"Invalid action {action}, expected {expected}",
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HttpStatusCode.BAD_REQUEST,
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)
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async def _fetch_hotel(self, session: AsyncSession, hotel_code: str) -> Hotel | None:
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stmt = select(Hotel).where(Hotel.hotel_id == hotel_code, Hotel.is_active.is_(True))
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result = await session.execute(stmt)
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return result.scalar_one_or_none()
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async def _process_complete_set(
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self,
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session: AsyncSession,
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hotel: Hotel,
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request: OtaHotelInvCountNotifRq,
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update_type: str,
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inventory_cache: dict[tuple[str, str | None], HotelInventory],
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) -> None:
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await self._delete_existing_availability(session, hotel.hotel_id)
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await self._process_inventories(
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session, hotel, request, update_type, inventory_cache, enforce_closing_order=True
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)
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async def _process_delta(
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self,
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session: AsyncSession,
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hotel: Hotel,
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request: OtaHotelInvCountNotifRq,
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update_type: str,
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inventory_cache: dict[tuple[str, str | None], HotelInventory],
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) -> None:
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await self._process_inventories(
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session, hotel, request, update_type, inventory_cache, enforce_closing_order=False
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)
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async def _delete_existing_availability(
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self,
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session: AsyncSession,
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hotel_id: str,
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) -> None:
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subquery = select(HotelInventory.id).where(HotelInventory.hotel_id == hotel_id)
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await session.execute(
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delete(RoomAvailability).where(RoomAvailability.inventory_id.in_(subquery))
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)
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async def _process_inventories(
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self,
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session: AsyncSession,
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hotel: Hotel,
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request: OtaHotelInvCountNotifRq,
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update_type: str,
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inventory_cache: dict[tuple[str, str | None], HotelInventory],
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enforce_closing_order: bool,
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) -> None:
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inventories = request.inventories.inventory if request.inventories else []
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if not inventories:
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raise FreeRoomsProcessingError(
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"Request must include at least one Inventory block",
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HttpStatusCode.BAD_REQUEST,
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)
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rows_to_upsert: list[dict[str, Any]] = []
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now = datetime.now(UTC)
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encountered_standard = False
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for inventory in inventories:
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sac = inventory.status_application_control
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if sac is None:
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raise FreeRoomsProcessingError(
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"StatusApplicationControl element is required for each Inventory",
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HttpStatusCode.BAD_REQUEST,
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)
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is_closing = self._is_closing_season(sac)
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if is_closing:
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if inventory.inv_counts is not None:
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raise FreeRoomsProcessingError(
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"Closing seasons cannot contain InvCounts data",
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HttpStatusCode.BAD_REQUEST,
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)
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if update_type != "CompleteSet":
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raise FreeRoomsProcessingError(
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"Closing seasons are only allowed on CompleteSet updates",
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HttpStatusCode.BAD_REQUEST,
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)
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if enforce_closing_order and encountered_standard:
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raise FreeRoomsProcessingError(
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"Closing seasons must appear before other inventory entries",
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HttpStatusCode.BAD_REQUEST,
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)
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rows_to_upsert.extend(
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await self._process_closing_season(
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session, hotel, sac, update_type, now, inventory_cache
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)
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)
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continue
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encountered_standard = True
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rows_to_upsert.extend(
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await self._process_inventory_item(
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session,
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hotel,
|
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sac,
|
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inventory.inv_counts,
|
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update_type,
|
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now,
|
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inventory_cache,
|
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)
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)
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await self._upsert_availability_rows(session, rows_to_upsert)
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|
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async def _process_closing_season(
|
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self,
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session: AsyncSession,
|
||||
hotel: Hotel,
|
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sac: OtaHotelInvCountNotifRq.Inventories.Inventory.StatusApplicationControl,
|
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update_type: str,
|
||||
timestamp: datetime,
|
||||
inventory_cache: dict[tuple[str, str | None], HotelInventory],
|
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) -> list[dict[str, Any]]:
|
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if sac.inv_type_code or sac.inv_code:
|
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raise FreeRoomsProcessingError(
|
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"Closing season entries cannot specify InvTypeCode or InvCode",
|
||||
HttpStatusCode.BAD_REQUEST,
|
||||
)
|
||||
|
||||
start_date, end_date = self._parse_date_range(sac.start, sac.end)
|
||||
inventory_item = await self._ensure_inventory_item(
|
||||
session,
|
||||
hotel.hotel_id,
|
||||
CLOSING_SEASON_TYPE,
|
||||
None,
|
||||
timestamp,
|
||||
inventory_cache,
|
||||
)
|
||||
|
||||
base_payload = {
|
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"inventory_id": inventory_item.id,
|
||||
"count_type_2": None,
|
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"count_type_6": None,
|
||||
"count_type_9": None,
|
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"is_closing_season": True,
|
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"last_updated": timestamp,
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"update_type": update_type,
|
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}
|
||||
|
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rows = []
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for day in self._iter_days(start_date, end_date):
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payload = dict(base_payload)
|
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payload["date"] = day
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rows.append(payload)
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return rows
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|
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async def _process_inventory_item(
|
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self,
|
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session: AsyncSession,
|
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hotel: Hotel,
|
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sac: OtaHotelInvCountNotifRq.Inventories.Inventory.StatusApplicationControl,
|
||||
inv_counts: (
|
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OtaHotelInvCountNotifRq.Inventories.Inventory.InvCounts | None
|
||||
),
|
||||
update_type: str,
|
||||
timestamp: datetime,
|
||||
inventory_cache: dict[tuple[str, str | None], HotelInventory],
|
||||
) -> list[dict[str, Any]]:
|
||||
inv_type_code = (sac.inv_type_code or "").strip()
|
||||
if not inv_type_code:
|
||||
raise FreeRoomsProcessingError(
|
||||
"InvTypeCode is required unless AllInvCode=\"true\"",
|
||||
HttpStatusCode.BAD_REQUEST,
|
||||
)
|
||||
|
||||
inv_code = sac.inv_code.strip() if sac.inv_code else None
|
||||
start_date, end_date = self._parse_date_range(sac.start, sac.end)
|
||||
|
||||
counts = self._extract_counts(inv_counts)
|
||||
base_counts = {
|
||||
"count_type_2": counts.get("count_type_2"),
|
||||
"count_type_6": counts.get("count_type_6"),
|
||||
"count_type_9": counts.get("count_type_9"),
|
||||
}
|
||||
|
||||
inventory_item = await self._ensure_inventory_item(
|
||||
session,
|
||||
hotel.hotel_id,
|
||||
inv_type_code,
|
||||
inv_code,
|
||||
timestamp,
|
||||
inventory_cache,
|
||||
)
|
||||
|
||||
base_payload = {
|
||||
"inventory_id": inventory_item.id,
|
||||
"is_closing_season": False,
|
||||
"last_updated": timestamp,
|
||||
"update_type": update_type,
|
||||
**base_counts,
|
||||
}
|
||||
|
||||
rows = []
|
||||
for day in self._iter_days(start_date, end_date):
|
||||
payload = dict(base_payload)
|
||||
payload["date"] = day
|
||||
rows.append(payload)
|
||||
return rows
|
||||
|
||||
def _parse_date_range(self, start_str: str, end_str: str) -> tuple[date, date]:
|
||||
try:
|
||||
start_date = date.fromisoformat(start_str)
|
||||
end_date = date.fromisoformat(end_str)
|
||||
except ValueError as exc:
|
||||
raise FreeRoomsProcessingError(
|
||||
f"Invalid date format: {exc!s}",
|
||||
HttpStatusCode.BAD_REQUEST,
|
||||
) from exc
|
||||
|
||||
if end_date < start_date:
|
||||
raise FreeRoomsProcessingError(
|
||||
"StatusApplicationControl End date cannot be before Start date",
|
||||
HttpStatusCode.BAD_REQUEST,
|
||||
)
|
||||
return start_date, end_date
|
||||
|
||||
def _iter_days(self, start_date: date, end_date: date):
|
||||
current = start_date
|
||||
while current <= end_date:
|
||||
yield current
|
||||
current += timedelta(days=1)
|
||||
|
||||
def _is_closing_season(
|
||||
self,
|
||||
sac: OtaHotelInvCountNotifRq.Inventories.Inventory.StatusApplicationControl,
|
||||
) -> bool:
|
||||
return (sac.all_inv_code or "").strip().lower() == "true"
|
||||
|
||||
def _extract_counts(
|
||||
self,
|
||||
inv_counts: OtaHotelInvCountNotifRq.Inventories.Inventory.InvCounts | None,
|
||||
) -> dict[str, int | None]:
|
||||
if inv_counts is None or not inv_counts.inv_count:
|
||||
return {}
|
||||
|
||||
parsed: dict[str, int] = {}
|
||||
for count in inv_counts.inv_count:
|
||||
column_name = COUNT_TYPE_MAP.get(count.count_type)
|
||||
if column_name is None:
|
||||
raise FreeRoomsProcessingError(
|
||||
f"Unsupported CountType {count.count_type}",
|
||||
HttpStatusCode.BAD_REQUEST,
|
||||
)
|
||||
|
||||
if column_name in parsed:
|
||||
raise FreeRoomsProcessingError(
|
||||
f"Duplicate CountType {count.count_type.value} detected",
|
||||
HttpStatusCode.BAD_REQUEST,
|
||||
)
|
||||
|
||||
try:
|
||||
value = int(count.count)
|
||||
except ValueError as exc:
|
||||
raise FreeRoomsProcessingError(
|
||||
f"Invalid Count value '{count.count}'",
|
||||
HttpStatusCode.BAD_REQUEST,
|
||||
) from exc
|
||||
|
||||
if value < 0:
|
||||
raise FreeRoomsProcessingError(
|
||||
"Count values must be non-negative",
|
||||
HttpStatusCode.BAD_REQUEST,
|
||||
)
|
||||
|
||||
parsed[column_name] = value
|
||||
|
||||
return parsed
|
||||
|
||||
async def _ensure_inventory_item(
|
||||
self,
|
||||
session: AsyncSession,
|
||||
hotel_id: str,
|
||||
inv_type_code: str,
|
||||
inv_code: str | None,
|
||||
timestamp: datetime,
|
||||
cache: dict[tuple[str, str | None], HotelInventory],
|
||||
) -> HotelInventory:
|
||||
cache_key = (inv_type_code, inv_code)
|
||||
if cache_key in cache:
|
||||
return cache[cache_key]
|
||||
|
||||
filters = [
|
||||
HotelInventory.hotel_id == hotel_id,
|
||||
HotelInventory.inv_type_code == inv_type_code,
|
||||
]
|
||||
if inv_code is None:
|
||||
filters.append(HotelInventory.inv_code.is_(None))
|
||||
else:
|
||||
filters.append(HotelInventory.inv_code == inv_code)
|
||||
|
||||
stmt = select(HotelInventory).where(*filters)
|
||||
result = await session.execute(stmt)
|
||||
inventory_item = result.scalar_one_or_none()
|
||||
|
||||
if inventory_item:
|
||||
inventory_item.last_updated = timestamp
|
||||
else:
|
||||
inventory_item = HotelInventory(
|
||||
hotel_id=hotel_id,
|
||||
inv_type_code=inv_type_code,
|
||||
inv_code=inv_code,
|
||||
source=SOURCE_FREEROOMS,
|
||||
first_seen=timestamp,
|
||||
last_updated=timestamp,
|
||||
)
|
||||
session.add(inventory_item)
|
||||
await session.flush()
|
||||
|
||||
cache[cache_key] = inventory_item
|
||||
return inventory_item
|
||||
|
||||
async def _upsert_availability_rows(
|
||||
self,
|
||||
session: AsyncSession,
|
||||
rows: list[dict[str, Any]],
|
||||
) -> None:
|
||||
if not rows:
|
||||
return
|
||||
|
||||
bind = session.get_bind()
|
||||
dialect_name = bind.dialect.name if bind else ""
|
||||
table = RoomAvailability.__table__
|
||||
|
||||
if dialect_name == "postgresql":
|
||||
stmt = pg_insert(table).values(rows)
|
||||
stmt = stmt.on_conflict_do_update(
|
||||
index_elements=["inventory_id", "date"],
|
||||
set_=self._build_upsert_set(stmt),
|
||||
)
|
||||
await session.execute(stmt)
|
||||
return
|
||||
|
||||
if dialect_name == "sqlite":
|
||||
stmt = sqlite_insert(table).values(rows)
|
||||
stmt = stmt.on_conflict_do_update(
|
||||
index_elements=["inventory_id", "date"],
|
||||
set_=self._build_upsert_set(stmt),
|
||||
)
|
||||
await session.execute(stmt)
|
||||
return
|
||||
|
||||
await self._upsert_with_fallback(session, rows)
|
||||
|
||||
def _build_upsert_set(self, stmt):
|
||||
return {
|
||||
"count_type_2": stmt.excluded.count_type_2,
|
||||
"count_type_6": stmt.excluded.count_type_6,
|
||||
"count_type_9": stmt.excluded.count_type_9,
|
||||
"is_closing_season": stmt.excluded.is_closing_season,
|
||||
"last_updated": stmt.excluded.last_updated,
|
||||
"update_type": stmt.excluded.update_type,
|
||||
}
|
||||
|
||||
async def _upsert_with_fallback(
|
||||
self, session: AsyncSession, rows: list[dict[str, Any]]
|
||||
) -> None:
|
||||
for row in rows:
|
||||
stmt = select(RoomAvailability).where(
|
||||
RoomAvailability.inventory_id == row["inventory_id"],
|
||||
RoomAvailability.date == row["date"],
|
||||
)
|
||||
result = await session.execute(stmt)
|
||||
existing = result.scalar_one_or_none()
|
||||
|
||||
if existing:
|
||||
existing.count_type_2 = row["count_type_2"]
|
||||
existing.count_type_6 = row["count_type_6"]
|
||||
existing.count_type_9 = row["count_type_9"]
|
||||
existing.is_closing_season = row["is_closing_season"]
|
||||
existing.last_updated = row["last_updated"]
|
||||
existing.update_type = row["update_type"]
|
||||
else:
|
||||
session.add(RoomAvailability(**row))
|
||||
|
||||
def _success_response(self) -> AlpineBitsResponse:
|
||||
response = OtaHotelInvCountNotifRs(version="7.000", success="")
|
||||
xml = self._serializer.render(
|
||||
response, ns_map={None: "http://www.opentravel.org/OTA/2003/05"}
|
||||
)
|
||||
return AlpineBitsResponse(xml, HttpStatusCode.OK)
|
||||
|
||||
def _error_response(
|
||||
self,
|
||||
message: str,
|
||||
status_code: HttpStatusCode,
|
||||
error_type: ErrorType = ErrorType.VALUE_13,
|
||||
code: str = "450",
|
||||
) -> AlpineBitsResponse:
|
||||
error = OtaHotelInvCountNotifRs.Errors.Error(
|
||||
type_value=error_type,
|
||||
code=code,
|
||||
content=[message],
|
||||
)
|
||||
errors = OtaHotelInvCountNotifRs.Errors(error=[error])
|
||||
response = OtaHotelInvCountNotifRs(version="7.000", errors=errors)
|
||||
xml = self._serializer.render(
|
||||
response, ns_map={None: "http://www.opentravel.org/OTA/2003/05"}
|
||||
)
|
||||
return AlpineBitsResponse(xml, status_code)
|
||||
Reference in New Issue
Block a user